public static void ProcessActors(this OpenTkRenderer window)
{
foreach (Actor actor in Core.Ticker.Thinkers)
{
if (actor == null || actor.State == null || window.localCamera.Owner == actor)
{
return;
}
if (actor.State.RotationSet == null)
{
return;
}
double angle = MathHelper.RadiansToDegrees(Math.Atan2((double)(window.localCamera.Position.X - actor.Position.X), (double)(window.localCamera.Position.Y - actor.Position.Y)));
Sprite spr = actor.State.RotationSet.GetSprite(angle);
if (spr == null)
{
continue;
}
window.DrawSprite(spr, actor.Position.ToVec3d());
}
}
public static void DrawSprite(this OpenTkRenderer window, Sprite sprite, Vector3d pos)
{
double width, height;
width = sprite.Texture.Width * sprite.Scale.X; height = sprite.Texture.Height * sprite.Scale.Y;
GL.PushMatrix();
Vector3d origin = pos.ToGLVec3d();
origin.Y -= ((Math.Sign(origin.Y) == -1) ? -height : height) / 2;
origin.Z -= ((Math.Sign(origin.Z) == -1) ? -width : width) / 2;
GL.Translate(origin);
GL.Translate(0.0, sprite.Offset.Y * sprite.Scale.Y, sprite.Offset.X * sprite.Scale.X);
if (sprite.Billboard.HasFlag(Billboarding.X) || sprite.Billboard.HasFlag(Billboarding.Y))
{
Matrix4d mat;
GL.GetDouble(GetPName.ModelviewMatrix, out mat);
if (sprite.Billboard.HasFlag(Billboarding.X)) // Do X billboarding
{
mat [0, 0] = Matrix4d.Identity [0, 2];
mat [0, 1] = Matrix4d.Identity [0, 1];
mat [0, 2] = Matrix4d.Identity [0, 0];
mat [2, 0] = Matrix4d.Identity [2, 2];
mat [2, 1] = Matrix4d.Identity [2, 1];
mat [2, 2] = Matrix4d.Identity [2, 0];
}
if (sprite.Billboard.HasFlag(Billboarding.Y)) // Do Y billboarding
{
mat [1, 0] = Matrix4d.Identity [1, 2];
mat [1, 1] = Matrix4d.Identity [1, 1];
mat [1, 2] = Matrix4d.Identity [1, 0];
}
GL.LoadMatrix(ref mat);
}
GL.Rotate(sprite.Rotation, Vector3d.UnitX); // Do rotations
GL.Rotate(sprite.Angle, Vector3d.UnitY);
GL.Rotate(sprite.Pitch, Vector3d.UnitZ);
GLTex tex = GLTexManager.GetOrAddTex(sprite.Texture);
GL.Enable(EnableCap.Texture2D);
GL.BindTexture(TextureTarget.Texture2D, tex.Id);
Vector4 ambient = new Vector4(0.2f, 0.2f, 0.2f, 1.0f);
Vector4 diffuse = new Vector4(1.0f, 1.0f, 1.0f, 1.0f);
Vector4 specular = new Vector4(0.0f, 0.0f, 0.0f, 1.0f);
GL.Material(MaterialFace.Front, MaterialParameter.Ambient, ambient);
GL.Material(MaterialFace.Front, MaterialParameter.Diffuse, diffuse);
GL.Material(MaterialFace.Front, MaterialParameter.Specular, specular);
GL.Material(MaterialFace.Front, MaterialParameter.Shininess, 40.0f);
GL.Begin(PrimitiveType.Quads);
GL.Normal3(0.0f, 0.0f, 1.0f);
GL.TexCoord2(0, 0); GL.Vertex3(0.0, height / 2, -width / 2);
GL.TexCoord2(0, 1); GL.Vertex3(0.0, -height / 2, -width / 2);
GL.TexCoord2(1, 1); GL.Vertex3(0.0, -height / 2, width / 2);
GL.TexCoord2(1, 0); GL.Vertex3(0.0, height / 2, width / 2);
if (!sprite.Billboard.HasFlag(Billboarding.X)) // If X billboarding is off, draw on the other side too
{
GL.TexCoord2(1, 0); GL.Vertex3(0.0, height / 2, -width / 2);
GL.TexCoord2(0, 0); GL.Vertex3(0.0, height / 2, width / 2);
GL.TexCoord2(0, 1); GL.Vertex3(0.0, -height / 2, width / 2);
GL.TexCoord2(1, 1); GL.Vertex3(0.0, -height / 2, -width / 2);
}
GL.End();
GL.PopMatrix();
}
