-// some constants for predefined layer values
-enum {
- // Image/gradient backgrounds (should cover entire screen)
- LAYER_BACKGROUND0 = -300,
- // Particle backgrounds
- LAYER_BACKGROUND1 = -200,
- // Tilemap backgrounds
- LAYER_BACKGROUNDTILES = -100,
- // Solid tilemaps
- LAYER_TILES = 0,
- // Ordinary objects
- LAYER_OBJECTS = 50,
- // Objects that pass through walls
- LAYER_FLOATINGOBJECTS = 150,
- //
- LAYER_FOREGROUNDTILES = 200,
- //
- LAYER_FOREGROUND0 = 300,
- //
- LAYER_FOREGROUND1 = 400,
- // Hitpoints, time, coins, etc.
- LAYER_HUD = 500,
- // Menus, mouse, console etc.
- LAYER_GUI = 600
-};
-
-class Blend
-{
-public:
- GLenum sfactor;
- GLenum dfactor;
-
- Blend()
- : sfactor(GL_SRC_ALPHA), dfactor(GL_ONE_MINUS_SRC_ALPHA)
- {}
-
- Blend(GLenum s, GLenum d)
- : sfactor(s), dfactor(d)
- {}
-};
-
-enum Target {
- NORMAL, LIGHTMAP
-};
-