- (void)project(0, 3, y, x, 0, GF_DISINTEGRATE, PROJECT_GRID | PROJECT_HIDE, -1);
- (void)project(0, 3, y, x - 4, 0, GF_DISINTEGRATE, PROJECT_GRID | PROJECT_HIDE, -1);
- (void)project(0, 3, y, x + 4, 0, GF_DISINTEGRATE, PROJECT_GRID | PROJECT_HIDE, -1);
- aggravate_monsters(0);
+ (void)project(trapped_ptr, 0, 3, y, x, 0, GF_DISINTEGRATE, PROJECT_GRID | PROJECT_HIDE, -1);
+ (void)project(trapped_ptr, 0, 3, y, x - 4, 0, GF_DISINTEGRATE, PROJECT_GRID | PROJECT_HIDE, -1);
+ (void)project(trapped_ptr, 0, 3, y, x + 4, 0, GF_DISINTEGRATE, PROJECT_GRID | PROJECT_HIDE, -1);
+ aggravate_monsters(trapped_ptr, 0);