protected bool PerPixelCollision(SpriteAdapter i_Sprite)
{
bool isTherePixelCollision = false;
GetCollidedRectangleBounds(
out int positionXStart,
out int positionXEnd,
out int positionYStart,
out int positionYEnd,
i_Sprite);
for (int j = positionYStart; j < positionYEnd; ++j)
{
for (int i = positionXStart; i < positionXEnd; ++i)
{
Color sourceColor =
i_Sprite.TexturePixels[(i - i_Sprite.Bounds.X)
+ ((j - i_Sprite.Bounds.Y) * i_Sprite.Texture.Width)];
Color myColor = TexturePixels[(i - Bounds.X) + ((j - Bounds.Y) * Texture.Width)];
if (checkIfBothPixelsAreNotTransparent(sourceColor, myColor))
{
CollidedPixels.Add((i - Bounds.X) + ((j - Bounds.Y) * Texture.Width));
isTherePixelCollision = true;
}
}
}
return(isTherePixelCollision);
}
protected void GetCollidedRectangleBounds(
out int o_PositionXStart,
out int o_PositionXEnd,
out int o_PositionYStart,
out int o_PositionYEnd,
SpriteAdapter i_Sprite)
{
o_PositionXStart = Math.Max(i_Sprite.Bounds.X, Bounds.X);
o_PositionXEnd = Math.Min(i_Sprite.Bounds.X + i_Sprite.Bounds.Width, Bounds.X + Bounds.Width);
o_PositionYStart = Math.Max(i_Sprite.Bounds.Y, Bounds.Y);
o_PositionYEnd = Math.Min(i_Sprite.Bounds.Y + i_Sprite.Bounds.Height, Bounds.Y + Bounds.Height);
}
public override bool CheckCollision(ICollidable i_Source)
{
bool collided = false;
ICollidable2D source = i_Source as ICollidable2D;
if (IsAlive && source != null)
{
SpriteAdapter sprite = i_Source as SpriteAdapter;
if (sprite != null)
{
if (sprite.TeamColor != TeamColor && sprite.IsAlive)
{
if (sprite.Bounds.Intersects(Bounds))
{
collided = !CheckPerPixel || PerPixelCollision(sprite);
}
}
}
}
return(collided);
}
