/** * Add edges of the neighbouring path tiles. * @param xpos X coordinate of the central voxel with a path tile. * @param ypos Y coordinate of the central voxel with a path tile. * @param zpos Z coordinate of the central voxel with a path tile. * @param slope Imploded path slope of the central voxel. * @param dirs Edge directions to change (bitset of #TileEdge), usually #EDGE_ALL. * @param use_additions Use #_additions rather than #_world. * @param add_edges If set, add edges (else, remove them). * @return Updated (imploded) slope at the central voxel. */ uint8 AddRemovePathEdges(uint16 xpos, uint16 ypos, uint8 zpos, uint8 slope, uint8 dirs, bool use_additions, bool add_edges) { for (TileEdge edge = EDGE_BEGIN; edge < EDGE_COUNT; edge++) { if ((dirs & (1 << edge)) == 0) continue; // Skip directions that should not be updated. int delta_z = 0; if (slope >= PATH_FLAT_COUNT) { if (_path_down_from_edge[edge] == slope) { delta_z = 1; } else if (_path_up_from_edge[edge] != slope) { continue; } } Point16 dxy = _tile_dxy[edge]; if ((dxy.x < 0 && xpos == 0) || (dxy.x > 0 && xpos == _world.GetXSize() - 1)) continue; if ((dxy.y < 0 && ypos == 0) || (dxy.y > 0 && ypos == _world.GetYSize() - 1)) continue; TileEdge edge2 = (TileEdge)((edge + 2) % 4); bool modified = false; if (delta_z <= 0 || zpos < WORLD_Z_SIZE - 1) { Voxel *v; if (use_additions) { v = _additions.GetCreateVoxel(xpos + dxy.x, ypos + dxy.y, zpos + delta_z, false); } else { v = _world.GetCreateVoxel(xpos + dxy.x, ypos + dxy.y, zpos + delta_z, false); } if (v != nullptr) { uint16 number = v->GetInstance(); if (number == SRI_PATH) { // Valid path. v->SetInstanceData(SetPathEdge(v->GetInstanceData(), edge2, add_edges)); MarkVoxelDirty(xpos + dxy.x, ypos + dxy.y, zpos + delta_z); modified = true; } else if (number >= SRI_FULL_RIDES) { // A ride instance. Does it have an entrance here? if ((v->GetInstanceData() & (1 << edge2)) != 0) modified = true; } } } delta_z--; if (delta_z >= 0 || zpos > 0) { Voxel *v; if (use_additions) { v = _additions.GetCreateVoxel(xpos + dxy.x, ypos + dxy.y, zpos + delta_z, false); } else { v = _world.GetCreateVoxel(xpos + dxy.x, ypos + dxy.y, zpos + delta_z, false); } if (v != nullptr) { uint16 number = v->GetInstance(); if (number == SRI_PATH) { // Valid path. v->SetInstanceData(SetPathEdge(v->GetInstanceData(), edge2, add_edges)); MarkVoxelDirty(xpos + dxy.x, ypos + dxy.y, zpos + delta_z); modified = true; } else if (number >= SRI_FULL_RIDES) { // A ride instance. Does it have an entrance here? if ((v->GetInstanceData() & (1 << edge2)) != 0) modified = true; } } } if (modified && slope < PATH_FLAT_COUNT) slope = SetPathEdge(slope, edge, add_edges); } return slope; }
/** * Remove a path from a tile, and free the voxels above it as well. * @param voxel_pos Coordinate of the voxel. * @param path_spr Imploded sprite number. * @see BuildPathAtTile */ static void RemovePathAtTile(const XYZPoint16 &voxel_pos, uint8 path_spr) { VoxelStack *avs = _additions.GetModifyStack(voxel_pos.x, voxel_pos.y); Voxel *av = avs->GetCreate(voxel_pos.z, false); av->SetInstance(SRI_FREE); av->SetInstanceData(0); AddRemovePathEdges(voxel_pos, path_spr, EDGE_ALL, true, PAS_UNUSED); MarkVoxelDirty(voxel_pos); av = avs->GetCreate(voxel_pos.z + 1, false); av->SetInstance(SRI_FREE); av->SetInstanceData(0); if (path_spr >= PATH_FLAT_COUNT) { av = avs->GetCreate(voxel_pos.z + 2, false); av->SetInstance(SRI_FREE); av->SetInstanceData(0); } }
/** * Build a path at a tile, and claim the voxels above it as well. * @param voxel_pos Coordinate of the voxel. * @param path_type The type of path to build. * @param path_spr Imploded sprite number. * @see RemovePathAtTile */ static void BuildPathAtTile(const XYZPoint16 &voxel_pos, PathType path_type, uint8 path_spr) { VoxelStack *avs = _additions.GetModifyStack(voxel_pos.x, voxel_pos.y); Voxel *av = avs->GetCreate(voxel_pos.z, true); av->SetInstance(SRI_PATH); uint8 slope = AddRemovePathEdges(voxel_pos, path_spr, EDGE_ALL, true, _sprite_manager.GetPathStatus(path_type)); av->SetInstanceData(MakePathInstanceData(slope, path_type)); av = avs->GetCreate(voxel_pos.z + 1, true); av->ClearVoxel(); av->SetInstance(SRI_PATH); av->SetInstanceData(PATH_INVALID); if (path_spr >= PATH_FLAT_COUNT) { // For non-flat sprites, add another voxel. av = avs->GetCreate(voxel_pos.z + 2, true); av->ClearVoxel(); av->SetInstance(SRI_PATH); av->SetInstanceData(PATH_INVALID); } MarkVoxelDirty(voxel_pos); }
/** * Change the path type of a currently existing path. * @param voxel_pos Coordinate of the voxel. * @param path_type The type of path to change to. * @param path_spr Imploded sprite number. */ static void ChangePathAtTile(const XYZPoint16 &voxel_pos, PathType path_type, uint8 path_spr) { VoxelStack *avs = _additions.GetModifyStack(voxel_pos.x, voxel_pos.y); Voxel *av = avs->GetCreate(voxel_pos.z, false); AddRemovePathEdges(voxel_pos, path_spr, EDGE_ALL, true, PAS_UNUSED); /* Reset flat path to one without edges or corners. */ if (path_spr < PATH_FLAT_COUNT) path_spr = PATH_EMPTY; uint8 slope = AddRemovePathEdges(voxel_pos, path_spr, EDGE_ALL, true, _sprite_manager.GetPathStatus(path_type)); av->SetInstanceData(MakePathInstanceData(slope, path_type)); MarkVoxelDirty(voxel_pos); }
void RideBuildWindow::SelectorMouseButtonEvent(uint8 state) { if (!IsLeftClick(state)) return; if (this->selector.area.width != 1 || this->selector.area.height != 1) return; ShopInstance *si = static_cast<ShopInstance *>(this->instance); SmallRideInstance inst_number = static_cast<SmallRideInstance>(this->instance->GetIndex()); uint8 entrances = si->GetEntranceDirections(si->vox_pos); Voxel *v = _world.GetCreateVoxel(si->vox_pos, true); assert(v != nullptr && v->GetInstance() == SRI_FREE); v->SetInstance(inst_number); v->SetInstanceData(entrances); _rides_manager.NewInstanceAdded(inst_number); AddRemovePathEdges(si->vox_pos, PATH_EMPTY, entrances, false, PAS_QUEUE_PATH); this->instance = nullptr; // Delete this window, and si = nullptr; // (Also clean the copy of the pointer.) delete this; ShowShopManagementGui(inst_number); // Open gui for the new shop. }