public abstract void Update(long gameTime, Collision collisionEngine);
public override void Update(long gameTime, Collision collisionEngine)
{
tankDirection = collisionEngine.MakeDirection(dx, dy);
if (moving)
{
bool isSomethingInFrontOfPlayer = collisionEngine.RayCast(x + spriteWidth / 2, y + spriteHeight / 2, tankDirection, 20, 30)
.Where(obj => obj.id != this.id)
.Count() > 0;
if (!isSomethingInFrontOfPlayer)
{
// Move player (speed * direction)
x += velocity * dx;
y += velocity * dy;
}
}
// Keep the player on the screen
if (x + velocity * dx <= 0) { x = 0; }
if (x + velocity * dx >= 745) { x = 745; }
if (y + velocity * dy <= 0) { y = 0; }
if (y + velocity * dy >= 525) { y = 525; }
if (missiles.Count > 0)
{
bool isBulletDestroyed = missiles[0].IsDestroyed();
bool shouldDestroyBullet = missiles[0].ShouldBeDestroyed();
if (isBulletDestroyed || shouldDestroyBullet)
{
missiles.Clear();
}
else
{
missiles[0].Update(Environment.TickCount, collisionEngine);
}
}
// Update collision pos
rectangle.X = x;
rectangle.Y = y;
}
private void InitCollisionEngine()
{
collisionEngine = new Collision();
try
{
allGameObjects.Clear();
UpdateIronWallsCollisions();
UpdateDestroyableWallsCollisions();
UpdateEnemyCollisions();
if (player != null && !player.isDestroyed)
{
allGameObjects.Add(player as GameObject);
}
collisionEngine.Update(allGameObjects);
}
catch (Exception e) { }
}
public override void Update(long gameTime, Collision collisionEngine)
{
if (missiles.Count == 0 && gameTime - lastShot >= SHOOT_PERIOD)
{
lastShot = gameTime;
Shoot();
}
if (missiles.Count > 0)
{
bool isBulletDestroyed = missiles[0].IsDestroyed();
bool shouldDestroyBullet = missiles[0].ShouldBeDestroyed();
if (isBulletDestroyed || shouldDestroyBullet)
{
missiles.Clear();
}
else
{
missiles[0].Update(Environment.TickCount, collisionEngine);
}
}
tankDirection = collisionEngine.MakeDirection(dx, dy);
if (moving)
{
List<GameObject> rayCastHitObjects = collisionEngine.RayCast(x + spriteWidth / 2, y + spriteHeight / 2, tankDirection, 20, 30)
.Where(obj => obj.id != this.id).ToList();
bool isSomethingInFrontOfMe = rayCastHitObjects.Count() > 0;
if (!isSomethingInFrontOfMe)
{
x += velocity * dx;
y += velocity * dy;
}
else
{
if( rayCastHitObjects.Where(obj => !obj.isDestroyable).Count() > 0 )
{
ChangeDirection();
}
else
{
bool timeLimit = stopWatch.Elapsed.Seconds > 1f;
if (timeLimit)
{
stopWatch.Restart();
ChangeDirection();
}
}
}
}
if (x <= 0)
{
x = 0 + velocity;
ChangeDirection();
}
if (x >= 745)
{
x = 745 - velocity;
ChangeDirection();
}
if (y <= 0)
{
y = 0 + velocity;
ChangeDirection();
}
if (y >= 525)
{
y = 525 - velocity;
ChangeDirection();
}
rectangle.X = x;
rectangle.Y = y;
if (moving == true)
{
// Play moving animation
if (gameTime - frameTicker > framePeriod)
{
frameTicker = gameTime;
if (currentFrame % 2 == 0)
{
currentFrame++;
}
else
{
currentFrame--;
}
}
}
}
public void Update(long gameTime, Collision collisionEngine)
{
if (isDestroyed)
{
// Play destroying animation
if (gameTime - frameTicker > framePeriod)
{
frameTicker = gameTime;
this.sourceRect.X += spriteWidth;
}
return;
}
// Move missile
x += velocity * dx;
y += velocity * dy;
// Collision
rectangle.X = x;
rectangle.Y = y;
Directions moveDirection = collisionEngine.MakeDirection(dx, dy); // Get direction
var hitObjects = collisionEngine.RayCast(x + spriteWidth / 2, y + spriteHeight / 2, moveDirection, velocity, 8)
.Where(gameObj => gameObj.id != this.id)
.Cast<GameObject>()
.ToList();
if (hitObjects.Count() > 0)
{
// Destroy hit objects and the bullet
foreach (var item in hitObjects)
{
if (item.isDestroyable && item.GetType() != shooter)
{
item.isDestroyed = true;
if (item.GetType() == typeof(Enemy))
{
GameWindow.game.IncreasePointsBy(100);
}
else if (item.GetType() == typeof(Player))
{
GameWindow.game.DecreaseLives();
}
}
}
Destroy();
}
}