draw_sprite_vh_flip

Draws the sprite transformed to the destination bitmap.

Description

void draw_sprite_vh_flip(BITMAP *bmp, BITMAP *sprite, int x, int y);
These are like draw_sprite(), but they additionally flip the image vertically, horizontally, or both, respectively. Flipping vertically means that the y-axis is reversed, while flipping horizontally means that the x-axis is reversed, between the source and the destination. This produces exact mirror images, which is not the same as rotating the sprite (and it is a lot faster than the rotation routine). The sprite must be a memory bitmap. Example: 
      if (key[KEY_RIGHT])
	 draw_sprite(screen, hero_right, pos_x, pos_y);
      else if (key[KEY_LEFT])
	 draw_h_sprite(screen, hero_right, pos_x, pos_y);
      else
	 draw_sprite(screen, hero_idle, pos_x, pos_y);
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