Function pathCheckObstacle

src/paths.cpp:321–392

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int pathCheckObstacle(int x, int y, Entity* my, Entity* target)
{
	const int u = std::min(std::max(0, x >> 4), (int)map.width - 1);
	const int v = std::min(std::max(0, y >> 4), (int)map.height - 1);
	const int index = v * MAPLAYERS + u * MAPLAYERS * map.height;

	if ( map.tiles[OBSTACLELAYER + index] || !map.tiles[index] || lavatiles[map.tiles[index]] )
	{
		return 1;
	}

	// entities not passable during this stage normally, hell generation makes entry gates passable
	for ( node_t* node = map.entities->first; node != nullptr; node = node->next )
	{
		Entity* entity = (Entity*)node->element;
		if (entity == my || entity == target)
		{
			continue;
		}
		if ( entity->sprite == 179 ) // collider
		{
			if ( (int)floor(entity->x / 16) == u && (int)floor(entity->y / 16) == v )
			{
				if ( entity->colliderHasCollision != 0 || entity->colliderDiggable != 0 )
				{
					return 1;
				}
				auto find = EditorEntityData_t::colliderData.find(entity->colliderDamageTypes);
				if ( find != EditorEntityData_t::colliderData.end() )
				{
					auto& colliderDmgType = EditorEntityData_t::colliderDmgTypes[find->second.damageCalculationType];
					if ( !colliderDmgType.allowNPCPathing )
					{
						return 1;
					}
				}
			}
		}
		else if ( entity->sprite == 14		// fountain
			|| entity->sprite == 15		// sink
			|| (entity->sprite == 19 && !entity->flags[PASSABLE]) // gate
			|| (entity->sprite == 20 && !entity->flags[PASSABLE]) // gate 2
			|| entity->sprite == 39		// head stone
			|| entity->sprite == 44		// boulder?
			|| entity->sprite == 106 	// power crystal
			|| entity->sprite == 108	// stalag column
			|| entity->sprite == 109	// stalagmite
			|| entity->sprite == 110	// stalagmite
			|| entity->sprite == 116	// pedestal
			|| entity->sprite == 124	// column
			|| entity->sprite == 126	// piston
			|| entity->sprite == 169	// statue
			|| entity->sprite == 177	// shrine
			|| entity->sprite == 178	// spell shrine
			|| entity->sprite == 1481	// daedalus shrine
			|| entity->sprite == 217	// iron door
			|| entity->sprite == 218	// iron door
			|| entity->sprite == 300	// cauldron