public bool PixelCollides(Vector2 center, float ray, bool erase = false)
{
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
Vector2 pixelPos = new Vector2(position.X - width / 2 + x, position.Y - height / 2 + y);
float pixToBulletDist = pixelPos.Sub(center).GetLength();
if (pixToBulletDist <= ray)
{
int pixelAlfaIndex = (y * width + x) * 4 + 3;
if (erase)
{//must erase pixels inside the explosion's circle
spriteobj.GetSprite().bitmap[pixelAlfaIndex] = 0;
}
else
{
if (spriteobj.GetSprite().bitmap[pixelAlfaIndex] != 0)
{
return(true);
}
}
}
}
}
return(false);
}
// METHODS
// UPDATE
private bool IsCollideWithBullet(EnemysBullet[] bullets)
{
for (int i = 0; i < this.bullets.Length; i++)
{
if (!this.bullets[i].IsFired)
{
continue;
}
for (int j = 0; j < bullets.Length; j++)
{
if (!bullets[j].IsFired)
{
continue;
}
Vector2 enemysBulletsPoint = new Vector2(bullets[j].Position.X + bullets[j].Width / 2, bullets[j].Position.Y + bullets[j].Height);
Vector2 bulletsPoint = new Vector2(this.bullets[i].Position.X + this.bullets[i].Width / 2, this.bullets[i].Position.Y);
if (bulletsPoint.Sub(enemysBulletsPoint).GetLength() <= this.bullets[i].Width / 2 + bullets[j].Width / 2)
{
this.bullets[i].IsFired = false;
this.bullets[i].IsExploded = true;
bullets[j].IsFired = false;
return(true);
}
}
}
return(false);
}
static public bool IsCollideWithBullet(PlayerBullet bullet)
{
if (centeredPosition.Sub(bullet.Point).GetLength() < Width / 2 + bullet.Width / 2 && isAlive)
{
isAlive = false;
Player.Score += points;
return(true);
}
return(false);
}
public bool Collides(Vector2 center, float ray)
{
bool collision = false;
Vector2 dist = position.Sub(center);
if (dist.GetLength() <= width / 2 + ray)
{
if (PixelCollides(center, ray))
{
collision = true;
PixelCollides(center, 15, true);
}
}
return(collision);
}
private bool IsCollideWithBullet(EnemyBullet[] bullets)
{
if (invincibleCooldown <= 0)
{
for (int i = 0; i < bullets.Length; i++)
{
if (!bullets[i].IsFired)
{
continue;
}
if (centeredPosition.Sub(bullets[i].Point).GetLength() < sprite.Width / 2 + bullets[i].Width / 2)
{
bullets[i].IsFired = false;
lives--;
invincibleCooldown = invincibleTempo;
flickeringCooldown = flickeringTempo;
return(true);
}
}
}
return(false);
}
private bool IsCollideWithPlayerBullet(PlayersBullet[] bullets)
{
for (int i = 0; i < bullets.Length; i++)
{
if (!bullets[i].IsFired)
{
continue;
}
for (int j = 0; j < this.barriers.Length; j++)
{
if (!this.barriers[j].IsAlive)
{
continue;
}
Vector2 barriersCenter = new Vector2(this.barriers[j].Position.X + this.barriers[j].Side / 2, this.barriers[j].Position.Y + this.barriers[j].Side / 2);
Vector2 bulletsPoint = new Vector2(bullets[i].Position.X + bullets[i].Width / 2, bullets[i].Position.Y);
if (barriersCenter.Sub(bulletsPoint).GetLength() <= this.barriers[j].Side / 2 + bullets[i].Width * 10)
{
for (int z = this.barriers[j].Bricks.Length - 1; z >= 0; z--)
{
if (!this.barriers[j].Bricks[z].IsAlive)
{
continue;
}
Vector2 bricksCenter = new Vector2((float)(this.barriers[j].Bricks[z].Position.X + this.barriers[j].Bricks[z].Side / 2), (float)(this.barriers[j].Bricks[z].Position.Y + this.barriers[j].Bricks[z].Side / 2));
if (bricksCenter.Sub(bulletsPoint).GetLength() <= this.barriers[j].Bricks[z].Side / 2 + bullets[i].Width / 2)
{
this.barriers[j].Bricks[z].IsAlive = false;
bullets[i].IsFired = false;
bullets[i].IsExploded = true;
return(true);
}
}
}
}
}
return(false);
}
// METHODS
// UPDATE
private bool IsCollideWithEnemy(Enemy[] enemies)
{
for (int i = 0; i < enemies.Length; i++)
{
if (!enemies[i].IsAlive)
{
continue;
}
for (int j = 0; j < this.barriers.Length; j++)
{
if (!this.barriers[j].IsAlive)
{
continue;
}
//Vector2 barriersCenter = new Vector2(this.barriers[j].Position.X + this.barriers[j].Side / 2, this.barriers[j].Position.Y + this.barriers[j].Side / 2);
Vector2 enemysCenter = new Vector2(enemies[i].PositionX + enemies[i].Width / 2, enemies[i].PositionY - enemies[i].Height * 2);
//if (enemysCenter.Sub(barriersCenter).GetLength() <= enemies[i].Width / 2 + this.barriers[j].Side / 2)
//{
for (int z = 0; z < this.barriers[j].Bricks.Length; z++)
{
if (!this.barriers[j].Bricks[z].IsAlive)
{
continue;
}
Vector2 bricksCenter = new Vector2(this.barriers[j].Bricks[z].Position.X + this.barriers[j].Bricks[z].Side / 2, this.barriers[j].Bricks[z].Position.Y + this.barriers[j].Bricks[z].Side / 2);
if (bricksCenter.Sub(enemysCenter).GetLength() <= (int)BarriersValues.side / 2 + enemies[i].Width / 2)
{
this.barriers[j].Bricks[z].IsAlive = false;
return(true);
}
}
//}
}
}
return(false);
}
public bool Collides(Vector2 center, float ray)
{
Vector2 dist = Position.Sub(center);
return(dist.GetLength() <= width / 2 + ray);
}