public void DrawShadows(Texture2D[] textures, Point[] locations, RenderTarget2D screenGround, RenderTarget2D screenLights, float density)
{
if (_lightSource == null)
{
return;
}
if (textures == null || density > 1 || density < 0 || textures.Length != locations.Length)
{
throw new Exception("Invalid parameter");
}
// This is called every frame because of the cat animation.
// If your shadow casters map is static, you can generate it once.
shadowMap.StartGeneratingShadowCasteMap(false);
{
for (int i = 0; i < textures.Length; i++)
{
var location = World.CurrentMap.PositionOnVisibleMap(locations[i].X, locations[i].Y);
shadowMap.AddShadowCaster(textures[i], new Vector2(location.X + 4, location.Y + 4), textures[i].Width, textures[i].Height);
}
}
shadowMap.EndGeneratingShadowCasterMap();
Vector2 lightPosition = new Vector2(Engine.AnglerGame.MainPlayer.ScreenX + Const.TILE_SIZE / 2,
Engine.AnglerGame.MainPlayer.ScreenY + Const.TILE_SIZE / 2);
shadowMapResolver.ResolveShadows(this.shadowMap, _lightSource, PostEffect.None, lightPosition, World.MainPlayer.Radius + 5);
// We print the lights in an image
GraphicsDevice.SetRenderTarget(screenLights);
{
GraphicsDevice.Clear(Color.Black);
Engine.SpriteBatch.Begin(SpriteSortMode.Deferred, BlendState.Additive);
_lightSource.Draw(Engine.SpriteBatch);
Engine.SpriteBatch.End();
}
// Clone the ground texture
GraphicsDevice.SetRenderTarget(cloner);
GraphicsDevice.Clear(Color.White);
Engine.SpriteBatch.Begin();
Engine.SpriteBatch.Draw(screenGround, Vector2.Zero, Color.White);
Engine.SpriteBatch.End();
// This command impress a texture on another using 2xMultiplicative blend, which is perfect to paste our lights on the underlying image
World.LightsFX.PrintLightsOverTexture(screenGround, Engine.SpriteBatch, Engine.AnglerGame.GraphicsDeviceManager, screenLights, cloner, density);
}
public void Draw(Vector2 WorldPos)
{
// Game.GraphicsDevice.Clear(Color.CornflowerBlue);
ShadowMapResolver.ResolveShadows(ShadowMap, LightSource, PostEffect.LinearAttenuation_BlurHigh, 1.0f, LightPosition); //CurveAttenuation_BlurHigh
foreach (var lb in Bullets)
{
ShadowMapResolverBullets.ResolveShadows(ShadowMap, lb.Light, PostEffect.CurveAttenuation_BlurHigh, 1.0f, GetMyScreenPos(lb.MyBullet.Position));
}
Game.GraphicsDevice.SetRenderTarget(ScreenLights);
{
Game.GraphicsDevice.Clear(Color.Black);
sb.Begin(SpriteSortMode.Deferred, BlendState.Additive);
{
LightSource.Draw(sb);
foreach (var lb in Bullets)
{
lb.Light.Draw(sb);
}
}
sb.End();
}
Game.GraphicsDevice.SetRenderTarget(ScreenGround);
Game.GraphicsDevice.Clear(Color.Black);
}