Function Tile_GetTileInDirectionOf

src/tile.c:155–184

* Get a tile in the direction of a destination, randomized a bit. * * @param packed_from The origin. * @param packed_to The destination. * @return A packed tile. */

 * @return A packed tile.
 */
uint16 Tile_GetTileInDirectionOf(uint16 packed_from, uint16 packed_to)
{
	int16 distance;
	uint8 direction;

	if (packed_from == 0 || packed_to == 0) return 0;

	distance = Tile_GetDistancePacked(packed_from, packed_to);
	direction = Tile_GetDirectionPacked(packed_to, packed_from);

	if (distance <= 10) return 0;

	while (true) {
		int16 dir;
		tile32 position;
		uint16 packed;

		dir = 31 + (Tools_Random_256() & 0x3F);

		if ((Tools_Random_256() & 1) != 0) dir = -dir;

		position = Tile_UnpackTile(packed_to);
		position = Tile_MoveByDirection(position, direction + dir, min(distance, 20) << 8);
		packed = Tile_PackTile(position);

		if (Map_IsValidPosition(packed)) return packed;
	}

	return 0;
}

/**
 * Get to direction to follow to go from packed_from to packed_to.