NAME¶

draw_trans_rle_sprite - Draws a translucent RLE sprite. Allegro game programming library.

SYNOPSIS¶

#include <allegro.h>

void draw_trans_rle_sprite(BITMAP *bmp, const RLE_SPRITE *sprite, int x, int y);

DESCRIPTION¶

Translucent version of draw_rle_sprite(). See the description of draw_trans_sprite(). This must only be used after you have set up the color mapping table (for 256-color modes) or blender functions (for truecolor modes). The bitmap and sprite must normally be in the same color depth, but as a special case you can draw 32-bit RGBA format sprites onto any hicolor or truecolor bitmap, as long as you call set_alpha_blender() first. Example:

   /* Some one time initialisation code. */


   COLOR_MAP global_trans_table;


   create_trans_table(&global_trans_table, my_palette,


                      128, 128, 128, NULL);


   ...


   if (get_color_depth() == 8)


      color_map = &global_trans_table;


   else


      set_trans_blender(128, 128, 128, 128);


   


   draw_trans_rle_sprite(buffer, rle_ghost_sprite, x, y);

SEE ALSO¶

draw_rle_sprite(3alleg4), draw_lit_rle_sprite(3alleg4), draw_trans_sprite(3alleg4), color_map(3alleg4), set_trans_blender(3alleg4), set_alpha_blender(3alleg4), bitmap_mask_color(3alleg4)