Function Map_Update

src/map.c:590–632

* Updates ??. * * @param packed The packed tile. * @param type The type of update. * @param ignoreInvisible Wether to ignore tile visibility check. */

 * @param ignoreInvisible Wether to ignore tile visibility check.
 */
void Map_Update(uint16 packed, uint16 type, bool ignoreInvisible)
{
	static const int16 offsets[9] = {
		-64, /* up */
		-63, /* up right */
		1,   /* right */
		65,  /* down rigth */
		64,  /* down */
		63,  /* down left */
		-1,  /* left */
		-65, /* up left */
		0
	};

	if (!ignoreInvisible && !Map_IsTileVisible(packed)) return;

	switch (type) {
		default:
		case 0: {
			uint8 i;
			uint16 curPacked;

			if (BitArray_Test(g_dirtyMinimap, packed)) return;

			g_dirtyViewportCount++;

			for (i = 0; i < 9; i++) {
				curPacked = (packed + offsets[i]) & 0xFFF;
				BitArray_Set(g_dirtyViewport, curPacked);
				if (BitArray_Test(g_displayedViewport, curPacked)) g_selectionRectangleNeedRepaint = true;
			}

			BitArray_Set(g_dirtyMinimap, curPacked);
			return;
		}

		case 1:
		case 2:
		case 3:
			BitArray_Set(g_dirtyViewport, packed);
			return;
	}
}

/**
 * Make a deviator missile explosion on the given position, of a certain type. All units in the