public void End()
{
if (!has_begun)
{
throw new InvalidOperationException("Begin must be called before End can be called.");
}
if (primitivebatch == null || material == null)
{
Warm(device);
}
material.Parameters["TextureEnabled"].SetValue(true);
material.Parameters["World"].SetValue(Matrix.Identity);
material.Parameters["View"].SetValue(camera.view);
material.Parameters["Projection"].SetValue(camera.projection);
foreach (Texture2D texture in particles.Keys)
{
List <ParticleInfo> list = particles[texture];
if (list.Count <= 0)
{
continue;
}
material.Parameters["Texture"].SetValue(texture);
material.CurrentTechnique.Passes[0].Apply();
primitivebatch.Begin(Primitive.Quad);
float texture_pixel_width = 1.0f / texture.Width;
float texture_pixel_height = 1.0f / texture.Height;
for (int i = 0; i < list.Count; i++)
{
ParticleInfo particle = list[i];
TextureRegion region = particle.region;
primitivebatch.SetTransform(ref particle.transform);
primitivebatch.SetColor(particle.color);
primitivebatch.SetTextureCoords(region.u * texture_pixel_width, region.v * texture_pixel_height);
primitivebatch.AddVertex(-0.5f, 0.5f, 0, 0, 0);
primitivebatch.AddVertex(-0.5f, -0.5f, 0, 0, region.height * texture_pixel_height);
primitivebatch.AddVertex(0.5f, -0.5f, 0, region.width * texture_pixel_width, region.height * texture_pixel_height);
primitivebatch.AddVertex(0.5f, 0.5f, 0, region.width * texture_pixel_width, 0);
}
primitivebatch.End();
list.Clear();
}
has_begun = false;
}
public void Add(Particle particle)
{
TextureRegion region = particle.region;
ParticleInfo particleinfo = new ParticleInfo(region, particle.color, ref particle.world);
if (!particles.ContainsKey(region.texture))
{
particles[region.texture] = new List <ParticleInfo>();
}
particles[region.texture].Add(particleinfo);
}
public void Add(Particle particle)
{
TextureRegion region = particle.region;
ParticleInfo particleinfo = new ParticleInfo(region, particle.color, ref particle.world);
if (!particles.ContainsKey(region.texture))
particles[region.texture] = new List<ParticleInfo>();
particles[region.texture].Add(particleinfo);
}
