+void OpenTimegate(int x, int y)
+{
+ int delay = 6;
+
+ if (!MovDelay[x][y]) /* next animation frame */
+ MovDelay[x][y] = 5 * delay;
+
+ if (MovDelay[x][y]) /* wait some time before next frame */
+ {
+ int phase;
+
+ MovDelay[x][y]--;
+ phase = MovDelay[x][y] / delay;
+ if (!(MovDelay[x][y] % delay) && IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
+ DrawGraphic(SCREENX(x), SCREENY(y), GFX_TIMEGATE_OPEN - phase);
+
+ if (!MovDelay[x][y])
+ {
+ Feld[x][y] = EL_TIMEGATE_OPEN;
+ DrawLevelField(x, y);
+ }
+ }
+}
+
+void CloseTimegate(int x, int y)
+{
+ int delay = 6;
+
+ if (!MovDelay[x][y]) /* next animation frame */
+ MovDelay[x][y] = 5 * delay;
+
+ if (MovDelay[x][y]) /* wait some time before next frame */
+ {
+ int phase;
+
+ MovDelay[x][y]--;
+ phase = MovDelay[x][y] / delay;
+ if (!(MovDelay[x][y] % delay) && IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
+ DrawGraphic(SCREENX(x), SCREENY(y), GFX_TIMEGATE_CLOSED + phase);
+
+ if (!MovDelay[x][y])
+ {
+ Feld[x][y] = EL_TIMEGATE_CLOSED;
+ DrawLevelField(x, y);
+ }
+ }
+}
+
+static void CloseAllOpenTimegates()
+{
+ int x, y;
+
+ for (y=0; y<lev_fieldy; y++)
+ {
+ for (x=0; x<lev_fieldx; x++)
+ {
+ int element = Feld[x][y];
+
+ if (element == EL_TIMEGATE_OPEN || element == EL_TIMEGATE_OPENING)
+ {
+ Feld[x][y] = EL_TIMEGATE_CLOSING;
+ PlaySoundLevel(x, y, SND_OEFFNEN);
+ }
+ }
+ }
+}
+