public void ScrollCamera(Viewport viewport, LevelPlayer player, TileEngine tileEngine)
{
#if ZUNE
const float ViewMargin = 0.45f;
#else
const float ViewMargin = 0.35f;
#endif
// Calculate the edges of the screen.
float marginHeight = viewport.Height + 20.0f;
float marginWidth = viewport.Width * ViewMargin;
float marginLeft = CameraPositionXAxis + marginWidth;
float marginRight = CameraPositionXAxis + viewport.Width - marginWidth;
// Calculate how far to scroll when the player is near the edges of the screen.
float cameraMovement = 0.0f;
if (player.Position.X < marginLeft)
cameraMovement = player.Position.X - marginLeft;
else if (player.Position.X > marginRight)
cameraMovement = player.Position.X - marginRight;
const float TopMargin = 0.3f;
const float BottomMargin = 0.1f;
float marginTop = cameraPositionYAxis + viewport.Height * TopMargin;
float marginBottom = cameraPositionYAxis + viewport.Height - viewport.Height * BottomMargin;
float cameraMovementY = 0.0f;
if (player.Position.Y < marginTop) //above the top margin
cameraMovementY = player.Position.Y - marginTop;
else if (player.Position.Y > marginBottom) //below the bottom margin
cameraMovementY = player.Position.Y - marginBottom;
// Update the camera position, but prevent scrolling off the ends of the level.
float maxCameraPositionXOffset = LevelTile.Width * tileEngine.Width - viewport.Width;
CameraPositionXAxis = MathHelper.Clamp(CameraPositionXAxis + cameraMovement, 0.0f, maxCameraPositionXOffset);
float maxCameraPositionYOffset = LevelTile.Height * tileEngine.Height - viewport.Height;
cameraPositionYAxis = MathHelper.Clamp(cameraPositionYAxis + cameraMovementY, 0.0f, maxCameraPositionYOffset);
}
/// <summary>
/// Animates each enemy and allow them to kill the player.
/// </summary>
public void PlayerAndEnemy(LevelPlayer player, Character enemy, GameTime gameTime)
{
if (player.oneFrame.Intersects(enemy.BoundingRectangle))
{
//Enemy will stop walking, if their bounding box intersect with player and they are not doing some speical animation
if (enemy.SpecialAnimationDone || enemy == Statics.Level.Boss)
{
if (enemy.MoveState != Enums.MoveState.Fall && enemy.MoveState != Enums.MoveState.FireFall && enemy.MoveState != Enums.MoveState.FireReaction)
enemy.movement = 0;
}
// Resolve the collision along the X axis between player and enemy, player is not allow to go through the enemy.
Vector2 depth = RectangleExtensions.GetIntersectionDepth(player.BoundingRectangle, enemy.BoundingRectangle);
player.Position = new Vector2(player.Position.X + depth.X, player.Position.Y);
if (player.MoveState == Enums.MoveState.SpecialCombo)
{
if (enemy == Statics.Level.Boss)
enemy.MoveState = Enums.MoveState.Fall;
else
enemy.MoveState = Enums.MoveState.FireFall;
enemy.SpecialAnimationDone = false;
if (!player.AttackOnce)
{
enemy.Health -= player.AttackStrength;
player.Health -= 3;
player.AttackOnce = true;
}
player.movement = 0;
}
if (PerPixel.Collision(player.oneFrame, player.ColorData, enemy.oneFrame, enemy.ColorData))
{
//Placing this test outside of the Intersects test ensures the player will be capable of damage from every enemy punch
//This resolves the problem of only once damage per time the player entered the bounding Rectangle of the enemy.
if (!player.AttackOnce &&
enemy.MoveState != Enums.MoveState.FinalCombo2 &&
(player.ComboCount > 0 ||
player.Health <= 0.2 * player.fullHealth))
{
switch (player.MoveState)
{
case Enums.MoveState.Punch:
enemy.MoveState = Enums.MoveState.Reaction;
enemy.Health -= player.AttackStrength;
enemy.hurtCount++;
player.CountActions += 6;
player.punchHurtCount++;
break;
case Enums.MoveState.PunchUp:
enemy.MoveState = Enums.MoveState.Fall;
enemy.Health -= player.AttackStrength;
enemy.hurtCount += 2;
player.CountActions += 6;
break;
case Enums.MoveState.Kick:
enemy.MoveState = Enums.MoveState.Reaction;
enemy.Health -= player.AttackStrength;
enemy.hurtCount ++;
player.kickHurtCount++;
player.CountActions += 10;
break;
case Enums.MoveState.ComboKick:
enemy.MoveState = Enums.MoveState.Fall;
enemy.Health -= 2 * player.AttackStrength;
enemy.hurtCount += 2;
player.CountActions += 20;
break;
case Enums.MoveState.FirePunch1:
enemy.MoveState = Enums.MoveState.FireReaction;
enemy.Health -= 2 * player.AttackStrength;
player.CountActions += 15;
break;
case Enums.MoveState.FirePunch2:
enemy.MoveState = Enums.MoveState.FireReaction;
enemy.Health -= 2 * player.AttackStrength;
player.CountActions += 15;
break;
case Enums.MoveState.FirePunch3:
enemy.MoveState = Enums.MoveState.FireFall;
enemy.Health -= 2 * player.AttackStrength;
player.CountActions += 15;
break;
case Enums.MoveState.FinalCombo2:
enemy.MoveState = Enums.MoveState.FireFall;
enemy.Health -= 4 * player.AttackStrength;
player.ComboCount--;
break;
}
enemy.hurtSound.Play();
player.AttackOnce = true;
enemy.SpecialAnimationDone = false;
HitTime = gameTime.TotalRealTime;
}
if (!enemy.AttackOnce && player.SpecialAnimationDone)
{
if (enemy == Statics.Level.Boss)
{
switch (enemy.MoveState)
{
case Enums.MoveState.Punch:
player.MoveState = Enums.MoveState.Fall;
player.Health -= enemy.AttackStrength;
enemy.hitCount++;
break;
case Enums.MoveState.FinalCombo2:
player.MoveState = Enums.MoveState.Fall;
player.Health -= 2 * enemy.AttackStrength;
break;
}
}
else
{
switch (enemy.MoveState)
{
case Enums.MoveState.FinalCombo1:
player.MoveState = Enums.MoveState.Reaction;
player.Health -= enemy.AttackStrength;
enemy.hitCount++;
break;
case Enums.MoveState.FinalCombo2:
player.MoveState = Enums.MoveState.Fall;
player.Health -= 2 * enemy.AttackStrength;
break;
}
}
player.SpecialAnimationDone = false;
enemy.hurtSound.Play();
enemy.AttackOnce = true;
}
}
}
//If no intersection between player rectangle and enemy rectangle frame
//Add enemy movement towards player here...
else
{
if (enemy.SpecialAnimationDone)
{
if(enemy == Statics.Level.Boss)
enemy.movement = 200;
else
enemy.movement = 65f;
enemy.MoveState = Enums.MoveState.Walk;
}
}
}
/// <summary>
/// Gets the latest input and uses it to update the input history buffer.
/// </summary>
public void UpdatePlayer(GameTime gameTime, LevelPlayer player)
{
// Get latest input state.
GamePadState lastGamePadState = GamePadState;
KeyboardState lastKeyboardState = KeyboardState;
GamePadState = GamePad.GetState(PlayerIndex);
#if WINDOWS
if (PlayerIndex == PlayerIndex.One)
{
KeyboardState = Keyboard.GetState(PlayerIndex);
}
#endif
if (player.SpecialAnimationDone)
{
// If any digital horizontal movement input is found, override the analog movement.
if (GamePadState.IsButtonDown(Buttons.DPadLeft) || KeyboardState.IsKeyDown(Keys.A) || KeyboardState.IsKeyDown(Keys.Left))
{
player.direction = Enums.FaceDirection.Left;
player.movement = 0.8f;
}
if (GamePadState.IsButtonDown(Buttons.DPadRight) || KeyboardState.IsKeyDown(Keys.D) || KeyboardState.IsKeyDown(Keys.Right))
{
player.direction = Enums.FaceDirection.Right;
player.movement = 0.8f;
}
if (Math.Abs(player.movement) > 0)
player.MoveState = Enums.MoveState.Run;
// Check if the player wants to jump.
player.isJumping = GamePadState.IsButtonDown(Buttons.DPadUp) || KeyboardState.IsKeyDown(Keys.W) || KeyboardState.IsKeyDown(Keys.Space) || KeyboardState.IsKeyDown(Keys.Up);
}
// Expire old input.
TimeSpan time = gameTime.TotalRealTime;
TimeSpan timeSinceLast = time - LastInputTime;
if (timeSinceLast > BufferTimeOut)
{
Buffer.Clear();
}
// Get all of the non-direction buttons pressed.
Buttons buttons = 0;
foreach (var buttonAndKey in NonDirectionButtons)
{
Buttons button = buttonAndKey.Key;
Keys key = buttonAndKey.Value;
// Check the game pad and keyboard for presses.
if ((lastGamePadState.IsButtonUp(button) &&
GamePadState.IsButtonDown(button)) ||
(lastKeyboardState.IsKeyUp(key) &&
KeyboardState.IsKeyDown(key)))
{
// Use a bitwise-or to accumulate button presses.
buttons |= button;
}
}
// It is very hard to press two buttons on exactly the same frame.
// If they are close enough, consider them pressed at the same time.
bool mergeInput = (Buffer.Count > 0 && timeSinceLast < MergeInputTime);
// If there is a new direction,
var direction = Direction.FromInput(GamePadState, KeyboardState);
if (Direction.FromInput(lastGamePadState, lastKeyboardState) != direction)
{
// combine the direction with the buttons.
buttons |= direction;
// Don't merge two different directions. This avoids having impossible
// directions such as Left+Up+Right. This also has the side effect that
// the direction needs to be pressed at the same time or slightly before
// the buttons for merging to work.
mergeInput = false;
}
// If there was any new input on this update, add it to the buffer.
if (buttons != 0)
{
if (mergeInput)
{
// Use a bitwise-or to merge with the previous input.
// LastInputTime isn't updated to prevent extending the merge window.
Buffer[Buffer.Count - 1] = Buffer[Buffer.Count - 1] | buttons;
}
else
{
// Append this input to the buffer, expiring old input if necessary.
if (Buffer.Count == Buffer.Capacity)
{
Buffer.RemoveAt(0);
}
Buffer.Add(buttons);
// Record this the time of this input to begin the merge window.
LastInputTime = time;
}
}
}
public void OnCollected(LevelPlayer collectedBy)
{
collectedSound.Play();
}
/// <summary>
/// Called when a HealthPotion is collected.
/// </summary>
/// <param name="healthPotion">The healthPotion that was collected.</param>
/// <param name="collectedBy">The player who collected this healthPotion.</param>
private void OnHealthPotionCollected(HealthPotion healthPotion, LevelPlayer collectedBy)
{
collectedBy.Health += (2 * collectedBy.fullHealth/ 3);
if (collectedBy.Health >= collectedBy.fullHealth)
collectedBy.Health = collectedBy.fullHealth;
healthPotion.OnCollected(collectedBy);
}
/// <summary>
/// Animates each HealthPotion and checks to allows the player to collect them.
/// </summary>
public void UpdateHealthPotions(GameTime gameTime, LevelPlayer player)
{
UpdateKnives(gameTime);
for (int i = 0; i < healthPotions.Count; ++i)
{
HealthPotion healthPotion = healthPotions[i];
healthPotion.Update(gameTime);
if (healthPotion.BoundingCircle.Intersects(player.BoundingRectangle))
{
healthPotions.RemoveAt(i--);
OnHealthPotionCollected(healthPotion, player);
}
}
}