+static int getGraphicAnimationPhase(int frames, int delay, int mode)
+{
+ int phase;
+
+ if (mode & ANIM_PINGPONG)
+ {
+ int max_anim_frames = 2 * frames - 2;
+
+ phase = (FrameCounter % (delay * max_anim_frames)) / delay;
+ phase = (phase < frames ? phase : max_anim_frames - phase);
+ }
+ else
+ phase = (FrameCounter % (delay * frames)) / delay;
+
+ if (mode & ANIM_REVERSE)
+ phase = -phase;
+
+ return phase;
+}
+
+inline int getGraphicAnimationFrame(int graphic, int sync_frame)
+{
+ /* animation synchronized with global frame counter, not move position */
+ if (new_graphic_info[graphic].anim_global_sync || sync_frame < 0)
+ sync_frame = FrameCounter;
+
+ return getAnimationFrame(new_graphic_info[graphic].anim_frames,
+ new_graphic_info[graphic].anim_delay,
+ new_graphic_info[graphic].anim_mode,
+ new_graphic_info[graphic].anim_start_frame,
+ sync_frame);