/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed ||
Keyboard.GetState().IsKeyDown(Keys.Escape))
{
this.Exit();
}
// get current keyboard state and update burger
KeyboardState keyboard = Keyboard.GetState();
burger.Update(gameTime, keyboard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active && bears[j].Active)
{
//Getting collision info
CollisionResolutionInfo CRI = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WINDOW_WIDTH, GameConstants.WINDOW_HEIGHT,
bears[i].Velocity, bears[i].CollisionRectangle,
bears[j].Velocity, bears[j].CollisionRectangle);
//checking for collision
if (CRI != null)
{
//play bounce sound
teddyBounce.Play();
//dealing with first teddy (i)
if (CRI.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].Velocity = CRI.FirstVelocity;
bears[i].DrawRectangle = CRI.FirstDrawRectangle;
}
//dealing with second teddy (j)
if (CRI.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].Velocity = CRI.SecondVelocity;
bears[j].DrawRectangle = CRI.SecondDrawRectangle;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear teddy in bears)
{
//if burger and teddy collide
if (teddy.Active && burger.CollisionRectangle.Intersects(teddy.CollisionRectangle) && burger.Health > 0)
{
//play sound
burgerDamage.Play();
//decrease burger health and change health score
burger.Health -= GameConstants.BEAR_DAMAGE;
healthString = GameConstants.HEALTH_PREFIX + burger.Health;
if (!burgerDead)
{
CheckBurgerKill();
}
//destroy teddy and explode him
Explosion explosion = new Explosion(explosionSpriteStrip, teddy.Location.X, teddy.Location.Y, explosionSound);
explosions.Add(explosion);
teddy.Active = false;
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
//if projectile is an Active teddy bear and collides with burger
if (projectile.Active && projectile.Type == ProjectileType.TeddyBear &&
projectile.CollisionRectangle.Intersects(burger.CollisionRectangle) && burger.Health > 0)
{
//destroy projectile
projectile.Active = false;
//decrease burger health and change health score
burger.Health -= GameConstants.TEDDY_BEAR_PROJECTILE_DAMAGE;
healthString = GameConstants.HEALTH_PREFIX + burger.Health;
if (!burgerDead)
{
CheckBurgerKill();
}
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.FrenchFries && projectile.Active && bear.Active && bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
//deactivate colliding bear and projectile
bear.Active = false;
projectile.Active = false;
//increase score
score += GameConstants.BEAR_POINTS;
scoreString = GameConstants.SCORE_PREFIX + score;
//create new exploson object and add to the list
Explosion explosion = new Explosion(explosionSpriteStrip,
bear.Location.X, bear.Location.Y,
explosionSound);
explosions.Add(explosion);
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
while (bears.Count != GameConstants.MAX_BEARS)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current keyboard state and update burger
KeyboardState keyboard = Keyboard.GetState();
burger.Update(gameTime, keyboard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active &&
bears[j].Active)
{
CollisionResolutionInfo cri = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WindowWidth, GameConstants.WindowHeight,
bears[i].Velocity, bears[i].DrawRectangle,
bears[j].Velocity, bears[j].DrawRectangle);
if (cri != null)
{
// resolve collision
if (cri.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].Velocity = cri.FirstVelocity;
bears[i].DrawRectangle = cri.FirstDrawRectangle;
teddyBounce.Play();
}
if (cri.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].Velocity = cri.SecondVelocity;
bears[j].DrawRectangle = cri.SecondDrawRectangle;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
if (bear.CollisionRectangle.Intersects(burger.CollisionRectangle) && bear.Active)
{
bear.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.Location.X,
bear.Location.Y, explosion));
burger.health -= GameConstants.BearDamage;
healthString = GameConstants.HealthPrefix + burger.health;
burgerDamage.Play();
CheckBurgerKill();
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.TeddyBear && projectile.CollisionRectangle.Intersects(burger.CollisionRectangle) && projectile.Active)
{
projectile.Active = false;
burger.health -= GameConstants.BearDamage;
healthString = GameConstants.HealthPrefix + burger.health;
burgerDamage.Play();
CheckBurgerKill();
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.FrenchFries &&
bear.Active &&
projectile.Active &&
bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
bear.Active = false;
projectile.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.Location.X,
bear.Location.Y, explosion));
explosion.Play();
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
SpawnBear();
}
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
KeyboardState keyboard = Keyboard.GetState();
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed ||
keyboard.IsKeyDown(Keys.Escape))
{
this.Exit();
}
// get current mouse state and update burger
//MouseState mouse = Mouse.GetState();
//burger.Update(gameTime, mouse);
burger.Update(gameTime, keyboard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (var i = 0; i < bears.Count; i++)
{
for (var j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active && bears[j].Active)
{
CollisionResolutionInfo colision = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WINDOW_WIDTH, GameConstants.WINDOW_HEIGHT,
bears[i].Velocity, bears[i].DrawRectangle,
bears[j].Velocity, bears[j].DrawRectangle);
if (colision != null)
{
teddyBounce.Play();
if (colision.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].DrawRectangle = colision.FirstDrawRectangle;
bears[i].Velocity = colision.FirstVelocity;
}
if (colision.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].DrawRectangle = colision.SecondDrawRectangle;
bears[j].Velocity = colision.SecondVelocity;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
if (bear.Active &&
bear.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Healt = burger.Healt - GameConstants.BEAR_DAMAGE;
healthString = GameConstants.HEALTH_PREFIX + burger.Healt;
CheckBurgerKill();
bear.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.CollisionRectangle.Center.X, bear.CollisionRectangle.Center.Y, explosion));
burgerDamage.Play();
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.TeddyBear &&
projectile.Active &&
projectile.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Healt = burger.Healt - GameConstants.TEDDY_BEAR_PROJECTILE_DAMAGE;
healthString = GameConstants.HEALTH_PREFIX + burger.Healt;
CheckBurgerKill();
projectile.Active = false;
burgerDamage.Play();
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
if (bear.Active &&
projectile.Active &&
projectile.Type == ProjectileType.FrenchFries &&
bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
bear.Active = false;
projectile.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.CollisionRectangle.Center.X, bear.CollisionRectangle.Center.Y, explosion));
score += GameConstants.BEAR_POINTS;
scoreString = GameConstants.SCORE_PREFIX + score;
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
//add new bears
while (bears.Count < GameConstants.MAX_BEARS)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed ||
Keyboard.GetState().IsKeyDown(Keys.Escape))
{
this.Exit();
}
// get current mouse state and update burger
//MouseState mouse = Mouse.GetState();
KeyboardState keyboard = Keyboard.GetState();
if (keyboard.IsKeyDown(Keys.Escape))
{
Exit();
}
burger.Update(gameTime, keyboard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count(); ++i)
{
for (int j = i + 1; j < bears.Count(); ++j)
{
if (bears[i].Active && bears[j].Active)
{
// make collision detection
CollisionResolutionInfo colInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WINDOW_WIDTH, GameConstants.WINDOW_HEIGHT,
bears[i].Velocity, bears[i].DrawRectangle,
bears[j].Velocity, bears[j].DrawRectangle);
if (colInfo != null)
{
// update first teddy bear according to collision info
if (colInfo.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].Velocity = colInfo.FirstVelocity;
bears[i].DrawRectangle = colInfo.FirstDrawRectangle;
}
// update second teddy bear according to collision info
if (colInfo.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].Velocity = colInfo.SecondVelocity;
bears[j].DrawRectangle = colInfo.SecondDrawRectangle;
}
teddyBounce.Play();
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
if (bear.Active && bear.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
// update burger health
burger.Health -= GameConstants.BEAR_DAMAGE;
healthString = GameConstants.HEALTH_PREFIX + burger.Health;
// play sound and check if burger is still alive
burgerDamage.Play();
CheckBurgerKill();
bear.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip,
bear.CollisionRectangle.Center.X,
bear.CollisionRectangle.Center.Y,
explosion));
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
if (projectile.Active && projectile.Type == ProjectileType.TeddyBear &&
projectile.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
// update burger health
burger.Health -= GameConstants.TEDDY_BEAR_PROJECTILE_DAMAGE;
healthString = GameConstants.HEALTH_PREFIX + burger.Health;
// play sound and check if burger is still alive
burgerDamage.Play();
CheckBurgerKill();
projectile.Active = false;
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
// check if projectile type is correct and if both objects are active
if (projectile.Type == ProjectileType.FrenchFries &&
projectile.Active && bear.Active)
{
// check if the objects intersect
if (projectile.CollisionRectangle.Intersects(bear.CollisionRectangle))
{
// update score
score += GameConstants.BEAR_POINTS;
scoreString = GameConstants.SCORE_PREFIX + score;
// set projectile and bear to inactive and create explosion
projectile.Active = false;
bear.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip,
bear.CollisionRectangle.Center.X,
bear.CollisionRectangle.Center.Y,
explosion));
}
}
}
}
// clean out inactive teddy bears and add new ones as necessary
// clean out inactive teddies
for (int i = bears.Count() - 1; i >= 0; --i)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
// spawn new teddies
while (bears.Count() < GameConstants.MAX_BEARS)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count() - 1; i >= 0; --i)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count() - 1; i >= 0; --i)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current keyboard state and update burger
KeyboardState keyboard = Keyboard.GetState();
burger.Update(gameTime, keyboard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
TeddyBear oneTeddy = bears[i];
TeddyBear theOtherTeddy = bears[j];
if (oneTeddy.Active && theOtherTeddy.Active)
{
CollisionResolutionInfo collisionResolutionInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds, GameConstants.WindowWidth, GameConstants.WindowHeight, oneTeddy.Velocity, oneTeddy.DrawRectangle, theOtherTeddy.Velocity, theOtherTeddy.DrawRectangle);
if (null != collisionResolutionInfo)
{
// first teddy collision
if (collisionResolutionInfo.FirstOutOfBounds)
{
oneTeddy.Active = false;
}
else
{
oneTeddy.Velocity = collisionResolutionInfo.FirstVelocity;
oneTeddy.DrawRectangle = collisionResolutionInfo.FirstDrawRectangle;
// adding sound effect
teddyBounce.Play();
}
// second teddy collision
if (collisionResolutionInfo.SecondOutOfBounds)
{
theOtherTeddy.Active = false;
}
else
{
theOtherTeddy.Velocity = collisionResolutionInfo.SecondVelocity;
theOtherTeddy.DrawRectangle = collisionResolutionInfo.SecondDrawRectangle;
// adding sound effect
teddyBounce.Play();
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
int initialBurguerHealth = burger.Health;
foreach (TeddyBear bear in bears)
{
if (bear.Active && bear.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Health -= GameConstants.BearDamage;
bear.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.CollisionRectangle.Center.X, bear.CollisionRectangle.Center.Y, explosion));
// adding sound effect
burgerDamage.Play();
// checking if burger was killed
CheckBurgerKill();
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
if (projectile.Active && ProjectileType.TeddyBear.Equals(projectile.Type) && projectile.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
projectile.Active = false;
burger.Health -= GameConstants.TeddyBearProjectileDamage;
// adding sound effect
burgerDamage.Play();
// checking if burger was killed
CheckBurgerKill();
}
}
// if health has changed, update health string
if (initialBurguerHealth != burger.Health)
{
UpdateHealthString();
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
// if projectile is french frye and projectile collisions with teddy, deactivate both of them
if (ProjectileType.FrenchFries.Equals(projectile.Type) && bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
// inactive teddy and projectile
projectile.Active = false;
bear.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.CollisionRectangle.Center.X, bear.CollisionRectangle.Center.Y, explosion));
// update score
score += GameConstants.BearPoints;
UpdateScoreString();
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
// add bears
while (bears.Count < GameConstants.MaxBears)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.Remove(explosions[i]);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current mouse state and update burger
MouseState mouse = Mouse.GetState();
burger.Update(gameTime, mouse);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
foreach (var bear in bears)
{
foreach (var projectile in projectiles)
{
if (bear.Active && projectile.Active && bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
// check and resolve collisions between teddy bears and projectiles
if (projectile.Type == ProjectileType.FrenchFries)
{
bear.Active = false;
projectile.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.Location.X, bear.Location.Y));
}
}
}
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active && bears[j].Active)
{
CollisionResolutionInfo resolutionInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds, GameConstants.WindowWidth,
GameConstants.WindowHeight, bears[i].Velocity, bears[i].DrawRectangle, bears[j].Velocity, bears[j].DrawRectangle);
if (resolutionInfo != null)
{
if (resolutionInfo.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].DrawRectangle = resolutionInfo.FirstDrawRectangle;
bears[i].Velocity = resolutionInfo.FirstVelocity;
}
if (resolutionInfo.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].DrawRectangle = resolutionInfo.SecondDrawRectangle;
bears[j].Velocity = resolutionInfo.SecondVelocity;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (var bear in bears)
{
if (bear.Active && bear.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Health -= GameConstants.BearDamage;
bear.Active = false;
Explosion explosion = new Explosion(explosionSpriteStrip, bear.DrawRectangle.X, bear.DrawRectangle.Y);
explosions.Add(explosion);
}
}
// check and resolve collisions between burger and projectiles
foreach (var projectile in projectiles)
{
if (projectile.Type == ProjectileType.TeddyBear && projectile.Active && projectile.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Health -= GameConstants.TeddyBearProjectileDamage;
projectile.Active = false;
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
while (bears.Count != GameConstants.MaxBears)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// get current mouse\keyboard state and update burger
KeyboardState currentKeyboardState = Keyboard.GetState();
MouseState mouse = Mouse.GetState();
if (burger != null)
{
burger.Update(gameTime, mouse, currentKeyboardState);
}
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || currentKeyboardState.IsKeyDown(Keys.Escape))
{
Exit();
}
//
// update other game objects
if (bears.Any())
{
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
if (bears.Any() && burger != null)
{
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active && bears[j].Active)
{
CollisionResolutionInfo collisitionResInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WindowWidth, GameConstants.WindowHeight,
bears[i].Velocity, bears[i].DrawRectangle, bears[j].Velocity, bears[j].DrawRectangle);
if (collisitionResInfo != null)
{
// 1 bear check and bounce if needed
if (collisitionResInfo.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].Velocity = collisitionResInfo.FirstVelocity;
bears[i].DrawRectangle = collisitionResInfo.FirstDrawRectangle;
teddyBounce.Play();
}
// 2 bear check and bounce if needed
if (collisitionResInfo.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].Velocity = collisitionResInfo.SecondVelocity;
bears[j].DrawRectangle = collisitionResInfo.SecondDrawRectangle;
teddyBounce.Play();
}
}
}
}
}
}
//a collision between the burger and each projectile
if (bears.Any() && burger != null)
{
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.TeddyBear &&
burger.CollisionRectangle.Intersects(projectile.CollisionRectangle) &&
projectile.Active && !burgerDead)
{
projectile.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, burger.CollisionRectangle.Center.X, burger.CollisionRectangle.Center.Y));
explosion.Play();
burger.Health -= GameConstants.TeddyBearProjectileDamage;
messages.Remove(healthMessage);
healthMessage = new Message(GameConstants.HealthPrefix + burger.Health, font, GameConstants.HealthLocation);
messages.Add(healthMessage);
CheckBurgerKill();
}
}
}
// bear collisisons check
if (bears.Any() && burger != null)
{
for (int i = 0; i < bears.Count; i++)
{
if (bears[i].Active)
{
// check and resolve collisions between burger and teddy bears
if (burger.CollisionRectangle.Intersects(bears[i].CollisionRectangle) && !burgerDead)
{
score++;
burger.Health -= GameConstants.BearDamage;
messages.Clear();
healthMessage = new Message(GameConstants.HealthPrefix + burger.Health, font, GameConstants.HealthLocation);
scoreMessage = new Message(GetScoreString(score), font, GameConstants.ScoreLocation);
messages.AddRange(new Message[] { healthMessage, scoreMessage });
bears[i].Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bears[i].Location.X, bears[i].Location.Y));
explosion.Play();
CheckBurgerKill();
}
// check and resolve collisions between teddy bears and projectiles
else
{
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.FrenchFries &&
bears[i].DrawRectangle.Intersects(projectile.CollisionRectangle) &&
bears[i].Active && projectile.Active)
{
score += GameConstants.BearPoints;
messages.Remove(scoreMessage);
GetScoreString(score);
scoreMessage = new Message(GetScoreString(score), font, GameConstants.ScoreLocation);
messages.Add(scoreMessage);
bears[i].Active = false;
projectile.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bears[i].Location.X, bears[i].Location.Y));
explosion.Play();
}
}
}
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
// adding bear to max value
while (bears.Count < GameConstants.MaxBears && burger != null)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.Remove(explosions[i]);
}
}
lastKeyboardState = currentKeyboardState;
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current mouse state and update burger
MouseState mouse = Mouse.GetState();
KeyboardState keyboard = Keyboard.GetState();
//burger.Update(gameTime, mouse);
burger.Update(gameTime, keyboard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
// bear1 and bear2 active, resolve collisions
if (bears[i].Active && bears[j].Active)
{
CollisionResolutionInfo collisionInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WindowWidth, GameConstants.WindowHeight, bears[i].Velocity, bears[i].CollisionRectangle, bears[j].Velocity, bears[j].CollisionRectangle);
if (collisionInfo != null)
{
if (collisionInfo.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].DrawRectangle = collisionInfo.FirstDrawRectangle;
bears[i].Velocity = collisionInfo.FirstVelocity;
}
if (collisionInfo.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].DrawRectangle = collisionInfo.SecondDrawRectangle;
bears[j].Velocity = collisionInfo.SecondVelocity;
}
teddyBounce.Play();
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
if (bear.Active && bear.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
// process burger damaged by teddy bear
burger.Health -= GameConstants.BearDamage;
bear.Active = false;
Explosion explosion = new Explosion(explosionSpriteStrip, bear.Location.X, bear.Location.Y, explosionSound);
explosions.Add(explosion);
healthString = GameConstants.HealthPrefix + burger.Health;
burgerDamage.Play();
// check burger health
CheckBurgerKill();
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.TeddyBear && projectile.Active &&
projectile.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
// process burger damaged by projectile
projectile.Active = false;
burger.Health -= GameConstants.TeddyBearProjectileDamage;
healthString = GameConstants.HealthPrefix + burger.Health;
burgerDamage.Play();
// check burger health
CheckBurgerKill();
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
if (bear.Active && projectile.Active && projectile.Type == ProjectileType.FrenchFries &&
bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
// colliding, then disable both bear and projectile
bear.Active = false;
projectile.Active = false;
int explosionX = bear.CollisionRectangle.Center.X;
int explosionY = bear.CollisionRectangle.Center.Y;
// Blow up teddy bear
Explosion explosion = new Explosion(explosionSpriteStrip, explosionX, explosionY, explosionSound);
explosions.Add(explosion);
// score points
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
// spawn enough teddy bears to fill the ranks
while (bears.Count <= GameConstants.MaxBears)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current mouse state and update burger
MouseState mouse = Mouse.GetState();
burger.Update(gameTime, mouse);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active && bears[j].Active)
{
CollisionResolutionInfo collision = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WindowWidth, GameConstants.WindowHeight, bears[i].Velocity, bears[i].DrawRectangle, bears[j].Velocity, bears[j].DrawRectangle);
if (collision != null)
{
// We have a collision to resolve
if (collision.FirstOutOfBounds)
{
// Teddy1 was forced out of bounds so remove from the game
bears[i].Active = false;
}
else
{
bears[i].Velocity = collision.FirstVelocity;
bears[i].DrawRectangle = collision.FirstDrawRectangle;
}
if (collision.SecondOutOfBounds)
{
// Teddy2 was forced out of bounds so remove from the game
bears[j].Active = false;
}
else
{
bears[j].Velocity = collision.SecondVelocity;
bears[j].DrawRectangle = collision.SecondDrawRectangle;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
// check and resolve collisions between burger and projectiles
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear teddy in bears)
{
// Only check for collisions if this teddy is active
if (teddy.Active)
{
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.FrenchFries && projectile.Active)
{
// Check for the collision
if (teddy.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
// Set the teddy and projectile to inactive
teddy.Active = false;
projectile.Active = false;
// Create a new explosion
explosions.Add(new Explosion(explosionSpriteStrip, teddy.Location.X, teddy.Location.Y));
}
}
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current mouse state and update burger
MouseState mouse = Mouse.GetState();
KeyboardState keyboard = Keyboard.GetState();
burger.Update(gameTime, keyboard);
if (burger.Health <= 0)
{
gameState = GameState.END;
}
if (keyboard.IsKeyDown(Keys.P) && gameState != GameState.END)
{
// pause or unpause
if (gameState == GameState.PLAY)
{
gameState = GameState.PAUSED;
}
else
{
gameState = GameState.PLAY;
}
}
if (gameState == GameState.PLAY)
{
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active && bears[j].Active && bears[i].CollisionRectangle.Intersects(bears[j].CollisionRectangle))
{
teddyBounce.Play();
CollisionResolutionInfo bearCollsionInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WindowWidth, GameConstants.WindowHeight, bears[i].Velocity, bears[i].CollisionRectangle,
bears[j].Velocity, bears[j].CollisionRectangle);
if (bearCollsionInfo != null)
{
if (bearCollsionInfo.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].Velocity = bearCollsionInfo.FirstVelocity;
bears[i].DrawRectangle = bearCollsionInfo.FirstDrawRectangle;
}
if (bearCollsionInfo.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].Velocity = bearCollsionInfo.SecondVelocity;
bears[j].DrawRectangle = bearCollsionInfo.SecondDrawRectangle;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
if (bear.Active && bear.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Health -= GameConstants.BearDamage;
// check if burger is dead
CheckBurgerKill();
bear.Active = false;
// play sound
burgerDamage.Play();
explosions.Add(new Explosion(explosionSpriteStrip, bear.Location.X, bear.Location.Y, explosionSound));
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.TeddyBear)
{
if (projectile.Active &&
projectile.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
projectile.Active = false;
burger.Health -= GameConstants.TeddyBearProjectileDamage;
// check if burger is dead
CheckBurgerKill();
// update health of burger
healthString = GameConstants.HealthPrefix + burger.Health;
// play sound
burgerDamage.Play();
}
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
// check to see if projectile is french fries (teddy bears dont kill teddy bears)
if (projectile.Type == ProjectileType.FrenchFries)
{
// check for collision
if (bear.Active && projectile.Active && bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
bear.Active = false;
projectile.Active = false;
// add explosions at the center of the bear
Explosion explosion = new Explosion(explosionSpriteStrip, bear.Location.X, bear.Location.Y, explosionSound);
explosions.Add(explosion);
// update score
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
// play sound
explosionSound.Play();
}
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
// add bears once one or more teddy bears are inactive
while (bears.Count < GameConstants.MaxBears)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
}
else
{
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current mouse state and update burger
KeyboardState currentState = Keyboard.GetState();
if (burger.getHealth() > 0)
{
burger.Update(gameTime, currentState);
}
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
if ((bear.CollisionRectangle.X + bear.CollisionRectangle.Size.X > projectile.CollisionRectangle.X) && (bear.CollisionRectangle.X < projectile.CollisionRectangle.X) && (bear.CollisionRectangle.Y <= projectile.CollisionRectangle.Y) && (bear.CollisionRectangle.Y + bear.CollisionRectangle.Size.Y > projectile.CollisionRectangle.Y))
{
if (projectile.Type == ProjectileType.FrenchFries)
{
bear.Active = false;
projectile.Active = false;
Explosion newExplosion = new Explosion(explosionSpriteStrip, bear.CollisionRectangle.X, bear.CollisionRectangle.Y, explosion);
explosions.Add(newExplosion);
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
}
}
}
if (bear.Active && ((bear.CollisionRectangle.X + bear.CollisionRectangle.Size.X > burger.CollisionRectangle.X) && (bear.CollisionRectangle.X < burger.CollisionRectangle.X) && (bear.CollisionRectangle.Y <= burger.CollisionRectangle.Y) && (bear.CollisionRectangle.Y + bear.CollisionRectangle.Size.Y > burger.CollisionRectangle.Y)))
{
burger.setHealth(burger.getHealth() - GameConstants.BearDamage);
bear.Active = false;
Explosion bearExploded = new Explosion(explosionSpriteStrip, bear.CollisionRectangle.X, bear.CollisionRectangle.Y, explosion);
explosions.Add(bearExploded);
healthString = GameConstants.HealthPrefix + burger.getHealth();
burgerDamage.Play();
CheckBurgerKill();
}
}
for (int i = explosions.Count - 1; i > 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
// check and resolve collisions between burger and teddy bears
// check and resolve collisions between burger and projectiles
foreach (Projectile bearShot in projectiles)
{
if ((bearShot.Type == ProjectileType.TeddyBear) && (burger.CollisionRectangle.X + burger.CollisionRectangle.Size.X > bearShot.CollisionRectangle.X) && (burger.CollisionRectangle.X < bearShot.CollisionRectangle.X) && (burger.CollisionRectangle.Y <= bearShot.CollisionRectangle.Y) && (burger.CollisionRectangle.Y + burger.CollisionRectangle.Size.Y > bearShot.CollisionRectangle.Y))
{
burger.setHealth(burger.getHealth() - GameConstants.BearDamage);
bearShot.Active = false;
Explosion bearShotExplosion = new Explosion(explosionSpriteStrip, bearShot.CollisionRectangle.X, bearShot.CollisionRectangle.Y, explosion);
explosions.Add(bearShotExplosion);
healthString = GameConstants.HealthPrefix + burger.getHealth();
burgerDamage.Play();
CheckBurgerKill();
}
}
for (int i = 0; i < bears.Count; i++)
{
TeddyBear thisBear = bears[i];
for (int j = i + 1; j < bears.Count; j++)
{
TeddyBear thatBear = bears[j];
if (thisBear.Active && thatBear.Active)
{
CollisionResolutionInfo collisionResolution = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds, GameConstants.WindowWidth, GameConstants.WindowHeight, thisBear.Velocity, thisBear.DrawRectangle, thatBear.Velocity, thatBear.DrawRectangle);
if (collisionResolution != null)
{
if (collisionResolution.FirstOutOfBounds)
{
thisBear.Active = false;
}
else
{
thisBear.Velocity = collisionResolution.FirstVelocity;
thisBear.DrawRectangle = collisionResolution.FirstDrawRectangle;
thatBear.Velocity = collisionResolution.SecondVelocity;
thatBear.DrawRectangle = collisionResolution.SecondDrawRectangle;
teddyBounce.Play();
}
if (collisionResolution.SecondOutOfBounds)
{
thatBear.Active = false;
}
else
{
thatBear.Velocity = collisionResolution.SecondVelocity;
thatBear.DrawRectangle = collisionResolution.SecondDrawRectangle;
thisBear.Velocity = collisionResolution.FirstVelocity;
thisBear.DrawRectangle = collisionResolution.FirstDrawRectangle;
}
}
}
}
}
// check and resolve collisions between teddy bears and projectiles
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
while (bears.Count < GameConstants.MaxBears)
{
SpawnBear();
}
}
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current keyboard state and update burger
KeyboardState keyboard = Keyboard.GetState();
burger.Update(gameTime, keyboard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
//nested for loop to check each bear collision
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
//if both bears are active
if (bears[i].Active && bears[j].Active)
{
//create resolution info with check collision method
CollisionResolutionInfo bearCollisionInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WindowWidth, GameConstants.WindowHeight, bears[i].Velocity, bears[i].DrawRectangle,
bears[j].Velocity, bears[j].DrawRectangle);
//if the collision info isn't null, resolve collision
if (bearCollisionInfo != null)
{
// check if first bear is out of bounds
if (bearCollisionInfo.FirstOutOfBounds)
{
//make bear inactive
bears[i].Active = false;
}
else
{
//else, set velocity and draw rectangle
bears[i].Velocity = bearCollisionInfo.FirstVelocity;
bears[i].DrawRectangle = bearCollisionInfo.FirstDrawRectangle;
}
//do the same with the other bear
if (bearCollisionInfo.SecondOutOfBounds)
{
//make bear inactive
bears[j].Active = false;
}
else
{
//else, set velocity and draw rectangle
bears[j].Velocity = bearCollisionInfo.SecondVelocity;
bears[j].DrawRectangle = bearCollisionInfo.SecondDrawRectangle;
}
//play bounce sound
teddyBounce.Play();
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
//check if they are colliding and bears are active
if (burger.CollisionRectangle.Intersects(bear.CollisionRectangle) && bear.Active)
{
//make bear inactive
bear.Active = false;
//add to new explosion to explosions list and play sound
explosions.Add(new Explosion(explosionSpriteStrip, bear.Location.X, bear.Location.Y, explosion));
//subtract health from burger and play sound
burger.Health -= GameConstants.BearDamage;
burgerDamage.Play();
//check burger kill
CheckBurgerKill();
//update health string
healthString = GameConstants.HealthPrefix + burger.Health;
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
//check if they are colliding with burger and are active
if (burger.CollisionRectangle.Intersects(projectile.CollisionRectangle) && projectile.Active)
{
//check if projectiles are bear projectiles
if (projectile.Type == ProjectileType.TeddyBear)
{
//make projectile inactive
projectile.Active = false;
//subtract health from burger and play sound
burger.Health -= GameConstants.BearDamage;
burgerDamage.Play();
//check burger kill
CheckBurgerKill();
//update health string
healthString = GameConstants.HealthPrefix + burger.Health;
}
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
//check for collisions with the projectiles
foreach (Projectile projectile in projectiles)
{
if (bear.CollisionRectangle.Intersects(projectile.CollisionRectangle) && bear.Active)
{
//check if projectiles are french fries
if (projectile.Type == ProjectileType.FrenchFries)
{
//update score and score string
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
//make bear and projectile inactive
bear.Active = false;
projectile.Active = false;
//add to new explosion to explosions list
explosions.Add(new Explosion(explosionSpriteStrip, bear.Location.X, bear.Location.Y, explosion));
}
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
//if bears aren't active, remove them
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
while (bears.Count < GameConstants.MaxBears)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
Exit();
// get current keyboard state and update burger
burger.Update(gameTime, Keyboard.GetState());
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
foreach(TeddyBear bear1 in bears)
{
foreach(TeddyBear bear2 in bears)
{
if(bear1 != bear2 && bear1.Active && bear2.Active)
{
CollisionResolutionInfo collisionResolutionInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds, GameConstants.WindowWidth, GameConstants.WindowHeight, bear1.Velocity, bear1.DrawRectangle, bear2.Velocity, bear2.DrawRectangle);
if(null != collisionResolutionInfo)
{
if (collisionResolutionInfo.FirstOutOfBounds)
{
bear1.Active = false;
} else
{
bear1.Velocity = collisionResolutionInfo.FirstVelocity;
bear1.DrawRectangle = collisionResolutionInfo.FirstDrawRectangle;
teddyBounce.Play();
}
if (collisionResolutionInfo.SecondOutOfBounds)
{
bear2.Active = false;
}
else
{
bear2.Velocity = collisionResolutionInfo.SecondVelocity;
bear2.DrawRectangle = collisionResolutionInfo.SecondDrawRectangle;
teddyBounce.Play();
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach(TeddyBear bear in bears)
{
if (burger.CollisionRectangle.Intersects(bear.CollisionRectangle))
{
burgerDamaged(GameConstants.BearDamage);
explodeTeddy(bear);
}
}
// check and resolve collisions between burger and projectiles
foreach(Projectile projectile in projectiles)
{
if(projectile.Type == ProjectileType.TeddyBear && burger.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
projectile.Active = false;
burgerDamaged(GameConstants.TeddyBearProjectileDamage);
}
}
// check and resolve collisions between teddy bears and projectiles
foreach(TeddyBear bear in bears)
{
if (bear.Active)
{
foreach(Projectile projectile in projectiles)
{
if(projectile.Active && projectile.Type == ProjectileType.FrenchFries && bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
projectile.Active = false;
explodeTeddy(bear);
score += GameConstants.BearPoints;
updateScoreString();
}
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for(int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
while(bears.Count < GameConstants.MaxBears)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
// check game end
CheckBurgerKill();
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current mouse state and update burger
MouseState mouse = Mouse.GetState();
//KeyboardState keyboard = Keyboard.GetState();
burger.Update(gameTime, mouse);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion exploded in explosions)
{
exploded.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active && bears[j].Active)
{
CollisionResolutionInfo resolutionInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds, windowWidth, windowHeight, bears[i].Velocity, bears[i].CollisionRectangle, bears[j].Velocity, bears[j].CollisionRectangle);
if (resolutionInfo != null)
{
if (resolutionInfo.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].Velocity = resolutionInfo.FirstVelocity;
bears[i].DrawRectangle = resolutionInfo.FirstDrawRectangle;
}
if (resolutionInfo.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].Velocity = resolutionInfo.SecondVelocity;
bears[j].DrawRectangle = resolutionInfo.SecondDrawRectangle;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bearC in bears)
{
if (bearC.Active == true && bearC.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
//Scoring
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
burger.Health -= GameConstants.BearDamage;
healthString = GameConstants.HealthPrefix + burger.Health;
bearC.Active = false;
Explosion bomba = new Explosion(explosionSpriteStrip, bearC.CollisionRectangle.X, bearC.CollisionRectangle.Y, explosion);
explosions.Add(bomba);
//burger sound effect.
burgerDamage.Play();
CheckBurgerKill();
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectileC in projectiles)
{
if (projectileC.Active == true && projectileC.Type == ProjectileType.TeddyBear && projectileC.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Health -= GameConstants.TeddyBearProjectileDamage; healthString = GameConstants.HealthPrefix + burger.Health; projectileC.Active = false;
//burger sound effect.
burgerDamage.Play();
CheckBurgerKill();
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bearB in bears)
{
foreach (Projectile projectileB in projectiles)
{
if (projectileB.Type == ProjectileType.FrenchFries && projectileB.Active && bearB.Active && (bearB.CollisionRectangle.Intersects(projectileB.CollisionRectangle)))
{
//Scoring
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
//Explosion occurs.
Explosion explode = new Explosion(explosionSpriteStrip, bearB.CollisionRectangle.X, bearB.CollisionRectangle.Y, explosion);
explosions.Add(explode);
bearB.Active = false;
projectileB.Active = false;
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int x = bears.Count - 1; x >= 0; x--)
{
if (!(bears[x].Active))
{
bears.RemoveAt(x);
while (bears.Count != GameConstants.MaxBears)
{
SpawnBear();
}
}
}
// clean out inactive projectiles
for (int y = projectiles.Count - 1; y >= 0; y--)
{
if (!(projectiles[y].Active))
{
projectiles.RemoveAt(y);
}
}
// clean out finished explosions
for (int z = explosions.Count - 1; z >= 0; z--)
{
if ((explosions[z].Finished))
{
explosions.RemoveAt(z);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed ||
Keyboard.GetState().IsKeyDown(Keys.Escape))
{
this.Exit();
}
// get current mouse state and update burger
MouseState mouse = Mouse.GetState();
KeyboardState keyboard = Keyboard.GetState();
//burger.Update(gameTime, mouse);
burger.Update(gameTime, keyboard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
//two bears are active and they collide
if (bears[i].CollisionRectangle.Intersects(bears[j].CollisionRectangle) && bears[i].Active && bears[j].Active)
{
//use the collision utils to get the info
CollisionResolutionInfo collisionInfoItem = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds, graphics.PreferredBackBufferWidth, graphics.PreferredBackBufferHeight, bears[i].Velocity, bears[i].DrawRectangle, bears[j].Velocity, bears[j].DrawRectangle);
//there was a collision to resolve
if (collisionInfoItem != null)
{
//collision put a bear outside the window, deactivate it
if (collisionInfoItem.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
//change the draw rectangle and direction of the bear according to the util function
bears[i].Velocity = collisionInfoItem.FirstVelocity;
bears[i].DrawRectangle = collisionInfoItem.FirstDrawRectangle;
teddyBounce.Play();
}
//collision put a bear outside the window, deactivate it
if (collisionInfoItem.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
//change the draw rectangle and direction of the bear according to the util function
bears[j].Velocity = collisionInfoItem.SecondVelocity;
bears[j].DrawRectangle = collisionInfoItem.SecondDrawRectangle;
teddyBounce.Play();
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
if (bear.CollisionRectangle.Intersects(burger.CollisionRectangle) && bear.Active)
{
burger.Health -= GameConstants.BEAR_DAMAGE;
CheckBurgerKill();
bear.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.Location.X, bear.Location.Y, explosion));
healthString = GameConstants.HEALTH_PREFIX + burger.Health.ToString();
burgerDamage.Play();
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.TeddyBear && projectile.Active && projectile.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Health -= GameConstants.TEDDY_BEAR_PROJECTILE_DAMAGE;
CheckBurgerKill();
projectile.Active = false;
healthString = GameConstants.HEALTH_PREFIX + burger.Health.ToString();
burgerDamage.Play();
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
//active french fry projectile hits an active bear actor
if (projectile.Type == ProjectileType.FrenchFries && bear.CollisionRectangle.Intersects(projectile.CollisionRectangle) && projectile.Active && bear.Active)
{
bear.Active = false;
projectile.Active = false;
//play the explosion at the bear's location
explosions.Add(new Explosion(explosionSpriteStrip, bear.Location.X, bear.Location.Y, explosion));
score += GameConstants.BEAR_POINTS;
scoreString = GameConstants.SCORE_PREFIX + score;
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
//later, we'll add bears up to the max again
while (bears.Count < GameConstants.MAX_BEARS)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// For Mobile devices, this logic will close the Game when the Back button is pressed
// Exit() is obsolete on iOS
#if !__IOS__
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed ||
Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
#endif
// get current keyboard state and update burger
burger.Update(gameTime, Keyboard.GetState());
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
if (!bears[i].Active)
{
continue;
}
for (int j = i + 1; j < bears.Count; j++)
{
if (!bears[j].Active)
{
continue;
}
CollisionResolutionInfo collisionResult = CollisionUtils.CheckCollision(
gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WindowWidth,
GameConstants.WindowHeight,
bears[i].Velocity, bears[i].DrawRectangle,
bears[j].Velocity, bears[j].DrawRectangle);
if (collisionResult == null)
{
continue;
}
if (collisionResult.FirstOutOfBounds)
{
bears[i].Active = false;
}
else
{
bears[i].Velocity = collisionResult.FirstVelocity;
bears[i].DrawRectangle = collisionResult.FirstDrawRectangle;
}
if (collisionResult.SecondOutOfBounds)
{
bears[j].Active = false;
}
else
{
bears[j].Velocity = collisionResult.SecondVelocity;
bears[j].DrawRectangle = collisionResult.SecondDrawRectangle;
}
teddyBounce.Play();
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
if (!bear.Active)
{
continue;
}
if (bear.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
burger.Health = burger.Health - GameConstants.BearDamage;
bear.Active = false;
Explosion exp = new Explosion(explosionSpriteStrip, bear.Location.X,
bear.Location.Y, explosion);
explosions.Add(exp);
healthString = GameConstants.HealthPrefix + burger.Health;
burgerDamage.Play();
CheckBurgerKill();
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
if (!projectile.Active || projectile.Type != ProjectileType.TeddyBear)
{
continue;
}
if (projectile.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
projectile.Active = false;
burger.Health = burger.Health - GameConstants.TeddyBearProjectileDamage;
healthString = GameConstants.HealthPrefix + burger.Health;
burgerDamage.Play();
CheckBurgerKill();
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear teddy in bears)
{
if (!teddy.Active)
{
continue;
}
foreach (Projectile projectile in projectiles)
{
if (!projectile.Active || projectile.Type != ProjectileType.FrenchFries)
{
continue;
}
if (teddy.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
teddy.Active = false;
projectile.Active = false;
Explosion exp = new Explosion(explosionSpriteStrip, teddy.Location.X,
teddy.Location.Y, explosion);
explosions.Add(exp);
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
// Spawn new teddy bears
while (bears.Count < GameConstants.MaxBears)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed ||
Keyboard.GetState().IsKeyDown(Keys.Escape))
{
this.Exit();
}
// get current mouse state and update burger
MouseState mouse = Mouse.GetState();
burger.Update(gameTime, mouse);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count - 1; j++)
{
if (bears[i].Active && bears[j].Active)
{
CollisionResolutionInfo teddyCollision = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds, GameConstants.WINDOW_WIDTH, GameConstants.WINDOW_HEIGHT, bears[i].Velocity, bears[i].CollisionRectangle, bears[j].Velocity, bears[j].CollisionRectangle);
if (teddyCollision != null)
{
if (teddyCollision.FirstOutOfBounds)
{
bears[i].Active = false;
}
else if (!teddyCollision.FirstOutOfBounds)
{
bears[i].Velocity = teddyCollision.FirstVelocity;
bears[i].DrawRectangle = teddyCollision.FirstDrawRectangle;
}
if (teddyCollision.SecondOutOfBounds)
{
bears[j].Active = false;
}
else if (!teddyCollision.SecondOutOfBounds)
{
bears[j].Velocity = teddyCollision.SecondVelocity;
bears[j].DrawRectangle = teddyCollision.SecondDrawRectangle;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
// check and resolve collisions between burger and projectiles
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
if (projectile.Type == ProjectileType.FrenchFries && bear.Active && projectile.Active &&
bear.CollisionRectangle.Intersects(projectile.CollisionRectangle))
{
bear.Active = false;
projectile.Active = false;
explosions.Add(new Explosion(explosionSpriteStrip, bear.CollisionRectangle.Center.X, bear.CollisionRectangle.Center.Y));
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (bears[i].Active == false)
{
bears.RemoveAt(i);
}
if (bears.Count < GameConstants.MAX_BEARS)
{
SpawnBear();
}
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (projectiles[i].Active == false)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
base.Update(gameTime);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed ||
Keyboard.GetState().IsKeyDown(Keys.Escape))
{
this.Exit();
}
// get current mouse state and update burger
burger.Update(gameTime, Keyboard.GetState());
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int bearOne = 0; bearOne < bears.Count; bearOne++)
{
for (int bearTwo = bearOne + 1; bearTwo < bears.Count; bearTwo++)
{
if (bears[bearOne].Active && bears[bearTwo].Active)
{
CollisionResolutionInfo resolution = CollisionUtils.CheckCollision(
gameTime.ElapsedGameTime.Milliseconds,
GameConstants.WINDOW_WIDTH,
GameConstants.WINDOW_HEIGHT,
bears[bearOne].Velocity,
bears[bearOne].DrawRectangle,
bears[bearTwo].Velocity,
bears[bearTwo].DrawRectangle);
if (resolution != null)
{
if (resolution.FirstOutOfBounds)
{
bears[bearOne].Active = false;
}
else
{
bears[bearOne].DrawRectangle = resolution.FirstDrawRectangle;
bears[bearOne].Velocity = resolution.FirstVelocity;
teddyBounce.Play();
}
if (resolution.SecondOutOfBounds)
{
bears[bearTwo].Active = false;
}
else
{
bears[bearTwo].DrawRectangle = resolution.SecondDrawRectangle;
bears[bearTwo].Velocity = resolution.SecondVelocity;
teddyBounce.Play();
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear teddy in bears)
{
if (teddy.Active)
{
if (teddy.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
explosions.Add(new Explosion(explosionSpriteStrip,
teddy.DrawRectangle.Center.X,
teddy.DrawRectangle.Center.Y));
explosion.Play();
burgerDamage.Play();
teddy.Active = false;
burger.Health = burger.Health - GameConstants.BEAR_DAMAGE;
healthString = GameConstants.HEALTH_PREFIX + burger.Health.ToString();
CheckBurgerKill();
}
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile shot in projectiles)
{
if (shot.Active && shot.Type == ProjectileType.TeddyBear)
{
if (shot.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
shot.Active = false;
burger.Health -= GameConstants.TEDDY_BEAR_PROJECTILE_DAMAGE;
healthString = GameConstants.HEALTH_PREFIX + burger.Health.ToString();
burgerDamage.Play();
CheckBurgerKill();
}
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear teddy in bears)
{
if (teddy.Active)
{
foreach (Projectile shot in projectiles)
{
if (shot.Type == ProjectileType.FrenchFries && shot.Active)
{
if (teddy.CollisionRectangle.Intersects(shot.CollisionRectangle))
{
explosions.Add(new Explosion(explosionSpriteStrip,
teddy.DrawRectangle.Center.X,
teddy.DrawRectangle.Center.Y));
score += GameConstants.BEAR_POINTS;
scoreString = GameConstants.SCORE_PREFIX + score.ToString();
explosion.Play();
teddy.Active = false;
shot.Active = false;
}
}
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
//we only care to have all five bears up
//according to what is said in assingment so...
while (bears.Count < GameConstants.MAX_BEARS)
{
SpawnBear();
}
}
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}
/// <summary>
/// Returns the collision resolution info object associated with a detected collision or null if no collision
/// is detected
///
/// Ref: David M. Bourg, Physics for Game Developers, pages 207 and 209
/// </summary>
/// <param name="timeStep">the time step, in milliseconds</param>
/// <param name="windowWidth">the width of the game window</param>
/// <param name="windowHeight">the height of the game window</param>
/// <param name="firstVelocity">the velocity of the first object</param>
/// <param name="firstDrawRectangle">the draw rectangle of the first object</param>
/// <param name="secondVelocity">the velocity of the second object</param>
/// <param name="secondDrawRectangle">the draw rectangle of the second object</param>
/// <returns>the collision resolution info object for a detected collision or null if no collision is detected</returns>
public static CollisionResolutionInfo CheckCollision(int timeStep, int windowWidth, int windowHeight,
Vector2 firstVelocity, Rectangle firstDrawRectangle,
Vector2 secondVelocity, Rectangle secondDrawRectangle)
{
Rectangle initialFirstAabr;
Rectangle initialSecondAabr;
Rectangle currentFirstAabr;
Rectangle currentSecondAabr;
Rectangle collisionRectangle;
// overlap test
bool collisionDetected = firstDrawRectangle.Intersects(secondDrawRectangle);
if (collisionDetected)
{
// initialize non-changing properties
currentFirstAabr.Width = firstDrawRectangle.Width;
currentFirstAabr.Height = firstDrawRectangle.Height;
currentSecondAabr.Width = secondDrawRectangle.Width;
currentSecondAabr.Height = secondDrawRectangle.Height;
// back up both objects to their locations before the time step
float firstDx = (firstVelocity.X * timeStep);
float firstDy = (firstVelocity.Y * timeStep);
initialFirstAabr.X = (int)(firstDrawRectangle.X - firstDx);
initialFirstAabr.Y = (int)(firstDrawRectangle.Y - firstDy);
initialFirstAabr.Width = firstDrawRectangle.Width;
initialFirstAabr.Height = firstDrawRectangle.Height;
float secondDx = (secondVelocity.X * timeStep);
float secondDy = (secondVelocity.Y * timeStep);
initialSecondAabr.X = (int)(secondDrawRectangle.X - secondDx);
initialSecondAabr.Y = (int)(secondDrawRectangle.Y - secondDy);
initialSecondAabr.Width = secondDrawRectangle.Width;
initialSecondAabr.Height = secondDrawRectangle.Height;
// at fixed time step of 60 fps, time increment can only be 8, 4, 2, or 1
int timeIncrement = timeStep / 2;
int collisionDt = timeStep; // we know we have a collision or we wouldn't be here
int dt = timeIncrement;
while (timeIncrement > 0)
{
// move both objects forward by dt from their initial positions
firstDx = firstVelocity.X * dt;
firstDy = firstVelocity.Y * dt;
secondDx = secondVelocity.X * dt;
secondDy = secondVelocity.Y * dt;
// update axis-aligned bounding rectangles
currentFirstAabr.X = (int)(initialFirstAabr.X + firstDx);
currentFirstAabr.Y = (int)(initialFirstAabr.Y + firstDy);
currentSecondAabr.X = (int)(initialSecondAabr.X + secondDx);
currentSecondAabr.Y = (int)(initialSecondAabr.Y + secondDy);
// cut time increment in half as we search for the time of collision
timeIncrement /= 2;
collisionDetected = currentFirstAabr.Intersects(currentSecondAabr);
if (collisionDetected)
{
// collision detected, so save collision dt and reduce dt to make it earlier
collisionDt = dt;
dt -= timeIncrement;
// save the collision rectangle in case we don't find any other collisions
Rectangle.Intersect(ref currentFirstAabr, ref currentSecondAabr, out collisionRectangle);
}
else
{
// no collision detected, so increase dt to make it later
dt += timeIncrement;
}
}
// get rectangle locations at start of collision
int collisionStartTime = collisionDt;
firstDx = firstVelocity.X * collisionStartTime;
firstDy = firstVelocity.Y * collisionStartTime;
secondDx = secondVelocity.X * collisionStartTime;
secondDy = secondVelocity.Y * collisionStartTime;
currentFirstAabr.X = (int)(initialFirstAabr.X + firstDx);
currentFirstAabr.Y = (int)(initialFirstAabr.Y + firstDy);
currentSecondAabr.X = (int)(initialSecondAabr.X + secondDx);
currentSecondAabr.Y = (int)(initialSecondAabr.Y + secondDy);
// use square collision normals
Rectangle intersection = Rectangle.Intersect(currentFirstAabr, currentSecondAabr);
CollisionSide collisionSide = GetCollisionSide(currentSecondAabr,
intersection, firstVelocity, secondVelocity);
// move objects through complete time step
int preCollisionDuration = collisionStartTime - 1;
int postCollisionDuration = timeStep - collisionStartTime + 1;
CollisionResolutionInfo cri = BounceObjects(firstVelocity, initialFirstAabr,
secondVelocity, initialSecondAabr, preCollisionDuration, postCollisionDuration,
collisionSide);
// check out of bounds and return
cri.FirstOutOfBounds = OutOfBounds(firstDrawRectangle, windowWidth, windowHeight);
cri.SecondOutOfBounds = OutOfBounds(secondDrawRectangle, windowWidth, windowHeight);
return(cri);
}
else
{
// no collision
return(null);
}
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed || Keyboard.GetState().IsKeyDown(Keys.Escape))
{
Exit();
}
// get current mouse state and update burger
KeyboardState keyBoard = Keyboard.GetState();
burger.Update(gameTime, keyBoard);
// update other game objects
foreach (TeddyBear bear in bears)
{
bear.Update(gameTime);
}
foreach (Projectile projectile in projectiles)
{
projectile.Update(gameTime);
}
foreach (Explosion explosion in explosions)
{
explosion.Update(gameTime);
}
// check and resolve collisions between teddy bears
for (int i = 0; i < bears.Count; i++)
{
for (int j = i + 1; j < bears.Count; j++)
{
if (bears[i].Active && bears[j].Active) // checking if both bears are active
{
//getting the collision Resolution Information
CollisionResolutionInfo collisionResoutionInfo = CollisionUtils.CheckCollision(gameTime.ElapsedGameTime.Milliseconds, GameConstants.WindowWidth, GameConstants.WindowHeight, bears[i].Velocity, bears[i].CollisionRectangle, bears[j].Velocity, bears[j].CollisionRectangle);
if (collisionResoutionInfo != null) // if not null
{
teddyBounce.Play();
//Solving for First bear
if (collisionResoutionInfo.FirstOutOfBounds)
{
//forced out of the game world
bears[i].Active = false;
}
else
{
//Setting new Velocity and DrawRectangle
bears[i].DrawRectangle = collisionResoutionInfo.FirstDrawRectangle;
bears[i].Velocity = collisionResoutionInfo.FirstVelocity;
}
//Solving for Second bear
if (collisionResoutionInfo.SecondOutOfBounds)
{
//forced out of the game world
bears[j].Active = false;
}
else
{
//Setting new Velocity and DrawRectangle
bears[j].DrawRectangle = collisionResoutionInfo.SecondDrawRectangle;
bears[j].Velocity = collisionResoutionInfo.SecondVelocity;
}
}
}
}
}
// check and resolve collisions between burger and teddy bears
foreach (TeddyBear bear in bears)
{
if (bear.CollisionRectangle.Intersects(burger.CollisionRectangle))
{
bear.Active = false;
burger.Health -= GameConstants.BearDamage;
healthString = GameConstants.HealthPrefix + burger.Health;
Explosion explosion = new Explosion(explosionSpriteStrip, bear.CollisionRectangle.Center.X, bear.CollisionRectangle.Center.Y, this.explosion);
explosions.Add(explosion);
burgerDamage.Play();
CheckBurgerKill();
}
}
// check and resolve collisions between burger and projectiles
foreach (Projectile projectile in projectiles)
{
//Checking whether the Projectile Type
if (projectile.Type == ProjectileType.TeddyBear)
{
if (burger.CollisionRectangle.Intersects(projectile.CollisionRectangle)) // Checking for collision
{
//Collision Activities when detected
burger.Health -= GameConstants.TeddyBearProjectileDamage;
healthString = GameConstants.HealthPrefix + burger.Health;
projectile.Active = false;
burgerDamage.Play();
CheckBurgerKill();
}
}
}
// check and resolve collisions between teddy bears and projectiles
foreach (TeddyBear bear in bears)
{
foreach (Projectile projectile in projectiles)
{
//Checking whether the Projectile Type
if (projectile.Type == ProjectileType.FrenchFries)
{
if (bear.CollisionRectangle.Intersects(projectile.CollisionRectangle)) // Checking for collision
{
//Collision Activities when detected
bear.Active = false;
projectile.Active = false;
score += GameConstants.BearPoints;
scoreString = GameConstants.ScorePrefix + score;
Explosion explosion = new Explosion(explosionSpriteStrip, bear.CollisionRectangle.Center.X, bear.CollisionRectangle.Center.Y, this.explosion);
explosions.Add(explosion);
}
}
}
}
// clean out inactive teddy bears and add new ones as necessary
for (int i = bears.Count - 1; i >= 0; i--)
{
if (!bears[i].Active)
{
bears.RemoveAt(i);
}
}
while (bears.Count < GameConstants.MaxBears)
{
SpawnBear();
}
// clean out inactive projectiles
for (int i = projectiles.Count - 1; i >= 0; i--)
{
if (!projectiles[i].Active)
{
projectiles.RemoveAt(i);
}
}
// clean out finished explosions
for (int i = explosions.Count - 1; i >= 0; i--)
{
if (explosions[i].Finished)
{
explosions.RemoveAt(i);
}
}
base.Update(gameTime);
}