public static LValue draw_sprite(Game _assets, Domain _environment, LValue[] _arguments, Int32 _count, Stack <LValue> _stack)
{
LSprite _sprite = _assets.SpriteMapping[(int)_arguments[0].Number];
int _subimg = (int)_arguments[1].Number;
double _x = _arguments[2].Number;
double _y = _arguments[3].Number;
int _texid = _sprite.TextureEntries[_subimg].GLTexture;
GL.Enable(EnableCap.Texture2D);
GL.BindTexture(TextureTarget.Texture2D, _texid);
GL.Begin(PrimitiveType.TriangleStrip);
GL.Color4((OpenTK.Graphics.Color4)_assets.CurrentColor);
//the best way to do this right now is to just draw the triangles in a strip
GL.TexCoord2(0.0, 0.0);
GL.Vertex2(_x - _sprite.XOrigin, _y - _sprite.YOrigin);
GL.TexCoord2(1.0, 0.0);
GL.Vertex2(_x - _sprite.XOrigin + _sprite.Width, _y - _sprite.YOrigin);
GL.TexCoord2(0.0, 1.0);
GL.Vertex2(_x - _sprite.XOrigin, _y - _sprite.YOrigin + _sprite.Height);
GL.TexCoord2(1.0, 1.0);
GL.Vertex2(_x - _sprite.XOrigin + _sprite.Width, _y - _sprite.YOrigin + _sprite.Height);
GL.End();
GL.Disable(EnableCap.Texture2D);
return(LValue.Real(0));
}
public static void DrawDefaultObject(Game _assets, LInstance _inst)
{
LValue _index = _inst.Variables["sprite_index"];
LValue _image = _inst.Variables["image_index"];
if (_index.I32 >= 0 && _index < _assets.SpriteMapping.Count)
{
LSprite _sprite = _assets.SpriteMapping[_index];
double _x = _inst.Variables["x"];
double _y = _inst.Variables["y"];
GL.PushMatrix();
GL.Translate(_x, _y, 0);
GL.Rotate(_inst.Variables["image_angle"].Number, 0, 0, 1);
GL.Enable(EnableCap.Texture2D);
GL.BindTexture(TextureTarget.Texture2D, _assets.TextureEntries[_image].GLTexture);
GL.Begin(PrimitiveType.TriangleStrip);
byte[] _color = BitConverter.GetBytes((int)_inst.Variables["image_blend"].Number);
GL.Color4(_color[2] / 255d, _color[1] / 255d, _color[0] / 255d, _inst.Variables["image_alpha"]);
GL.TexCoord2(0.0, 0.0);
GL.Vertex2(-_sprite.XOrigin, -_sprite.YOrigin);
GL.TexCoord2(1.0, 0.0);
GL.Vertex2(-_sprite.XOrigin + _sprite.Width, -_sprite.YOrigin);
GL.TexCoord2(0.0, 1.0);
GL.Vertex2(-_sprite.XOrigin, -_sprite.YOrigin + _sprite.Height);
GL.TexCoord2(1.0, 1.0);
GL.Vertex2(-_sprite.XOrigin + _sprite.Width, -_sprite.YOrigin + _sprite.Height);
GL.End();
GL.Disable(EnableCap.Texture2D);
GL.PopMatrix();
}
}
public static void SPRT(Game _assets, BinaryReader _reader, Chunk _chunk)
{
HandleKVP(_assets, _reader, delegate(Int32 _offset) {
LSprite _spriteGet = new LSprite(_assets, _reader);
_assets.Sprites.Add(_spriteGet.Name, _spriteGet);
_spriteGet.Index = _assets.SpriteMapping.Count;
_assets.SpriteMapping.Add(_spriteGet);
});
}
