217 lines
11 KiB
C++
217 lines
11 KiB
C++
#pragma once
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#include <deque>
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#include <functional>
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#include <map>
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#include <optional>
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#include <random>
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#include <string>
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#include <utility>
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#include <vector>
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#include <QPoint>
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#include <QPointF>
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#include <QVector2D>
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#include "BeltSystem.h"
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#include "Building.h"
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#include "BuildingType.h"
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#include "BuildingId.h"
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#include "GameConfig.h"
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#include "Rotation.h"
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#include "ModulesConfig.h"
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#include "ShipLayout.h"
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#include "ShipsConfig.h"
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#include "Tick.h"
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class Hasher;
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// Manages building placement, construction queuing, and the per-tick
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// production loop (belt→building pull, production, building→belt push).
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// All types including Belt and Splitter are stored as Building instances;
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// BeltSystem owns the per-tile simulation data (item slots, flow).
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class BuildingSystem
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{
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public:
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BuildingSystem(const GameConfig& config,
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BeltSystem& belts,
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std::function<BuildingId()> allocateBuildingId,
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std::function<void(int)> addBuildingBlocks,
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std::function<void(const std::string&, QVector2D,
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const std::optional<ShipLayoutConfig>&)> spawnShip,
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std::function<bool(const std::string&)> isItemUnlocked,
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std::mt19937& rng);
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// -- Placement / demolish ------------------------------------------------
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// Returns the new entity id, or kInvalidBuildingId if the placement falls
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// outside the world bounds (vertical extent and asteroid left edge). Belt
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// and Splitter register with BeltSystem directly; other types enter the
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// construction queue. Terrain type (A vs S) is NOT checked here so that
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// tests can stage arbitrary layouts; the player-facing entry point
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// (Simulation::tryPlaceBuilding) enforces the full rule via isPlacementValid.
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BuildingId place(BuildingType type, QPoint anchor, Rotation rotation,
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Tick currentTick);
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// Returns true if the placement satisfies REQ-BLD-PLACE-VALID terrain and
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// world-bounds rules: every ship-dock (S) cell sits in space (x >= 0), every
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// other body (A) cell sits on the asteroid (x < 0 and x >= the left edge),
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// and every cell has 0 <= y < world.height_tiles. There is no right-side
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// bound — space extends rightward. Tile occupancy is NOT checked here.
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bool isPlacementValid(BuildingType type, QPoint anchor,
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Rotation rotation) const;
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// Sets the current buildable asteroid width in tiles. Grows the left
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// placement bound as the player unlocks asteroid expansions (REQ-EXP-UNLOCK).
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// Defaults to world.regions.asteroid_width_tiles at construction.
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void setAsteroidWidth_tiles(int widthTiles) { m_asteroidWidth_tiles = widthTiles; }
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// Remove a building or construction site by id. Returns the refund in
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// building blocks (floor(cost * refundPercentage / 100)). Returns 0 for
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// unknown ids.
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int demolish(BuildingId id);
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// Set the recipe (or schematic id for shipyard) on a building or queued
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// construction site. Clears both buffers on an operational building.
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void setRecipe(BuildingId id, const std::string& recipeId);
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// Set the module layout for a shipyard. Cancels in-progress production
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// (materials discarded) and reinitializes input buffers (REQ-BLD-SHIPYARD).
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void setShipLayout(BuildingId id, const ShipLayoutConfig& layout);
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// Splitter filter configuration for a queued/under-construction Splitter
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// site (REQ-BLD-SITE-CONFIG). Operational splitters are configured through
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// BeltSystem by tile; these mirror that for sites, which are not yet
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// registered with BeltSystem. getSiteSplitterInfo returns the site's two
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// output directions (derived from its surface mask) and stored filters, or
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// nullopt if the id is not a Splitter site. The stored filters are applied
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// to BeltSystem when the splitter finishes building (tickConstruction).
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std::optional<BeltSystem::SplitterInfo> getSiteSplitterInfo(BuildingId id) const;
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void setSiteSplitterFilters(BuildingId id,
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const std::vector<ItemType>& filterA,
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const std::vector<ItemType>& filterB);
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// -- Tick hooks (called from Simulation::tick in the documented order) ---
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void tickConstruction(Tick currentTick);
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void tickBeltPull();
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void tickProduction(Tick currentTick);
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void tickShipyardProduction(Tick currentTick);
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// Advances each building's virtual output belts, hands finished items off onto
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// the adjacent real belt, and feeds new buffered items into them
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// (REQ-MAT-OUTPUT-EMERGE).
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void tickOutputBelts();
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// -- Queries -------------------------------------------------------------
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struct BeltTileInfo
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{
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BuildingId buildingId;
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QPoint tile;
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BuildingType type; // Belt or Splitter
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Rotation directionA; // Belt: its direction; Splitter: first output
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Rotation directionB; // Splitter: second output; Belt: same as directionA
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};
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const Building* findBuilding(BuildingId id) const;
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const ConstructionSite* findSite(BuildingId id) const;
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std::vector<Building> allBuildings() const;
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std::vector<ConstructionSite> allSites() const;
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// REQ-UI-DEBUG-OVERLAY "Max Factory Production": count of completed
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// (operational) Miner/Smelter/Assembler/ReprocessingPlant/Shipyard buildings.
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int productionBuildingCount() const;
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// REQ-UI-DEBUG-OVERLAY "Current Factory Production": subset of the above
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// that currently has an active production cycle.
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int activeProductionBuildingCount() const;
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std::vector<BeltTileInfo> allBeltTiles() const;
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bool isTileOccupied(QPoint tile) const;
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// Visits every item currently emerging from a building output port on its
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// virtual output belt (REQ-MAT-OUTPUT-EMERGE), passing the item type and its
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// world-space centre (in tile units). Least-progressed first (drawn bottom) so
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// callers can paint in visit order (REQ-GW-TILE-SIZE ordering).
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void forEachEmergingItem(
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const std::function<void(const ItemType&, QPointF)>& visit) const;
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// Visits every item currently travelling inward on a building input port's
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// virtual input belt (REQ-MAT-INPUT-INTAKE), passing the item type and its
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// world-space centre (in tile units). Least-progressed first (drawn bottom).
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void forEachIncomingItem(
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const std::function<void(const ItemType&, QPointF)>& visit) const;
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// Returns the entity id of the building or construction site whose footprint
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// exactly coincides with the ghost (type, anchor, rot) and is of the same
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// building type. Returns nullopt otherwise.
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std::optional<BuildingId> findRotateInPlaceTarget(BuildingType type,
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QPoint anchor,
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Rotation rot) const;
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// Rotate an existing building or construction site to newRotation in place.
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// For belt-type operational buildings, re-registers with BeltSystem (items
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// currently on the tile are discarded by BeltSystem::removeTile).
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void rotateInPlace(BuildingId id, Rotation newRotation);
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// Find nearest operational building of the given type; nullptr if none.
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const Building* findNearestBuilding(QVector2D worldPos, BuildingType type) const;
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// Register / unregister tile occupancy for ECS station entities.
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void registerTileOccupancy(const std::vector<QPoint>& cells, BuildingId ownerPlaceholder);
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void unregisterTileOccupancy(const std::vector<QPoint>& cells);
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// Place one "scrap" item into a SalvageBay's output buffer.
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// Returns false if bay not found, wrong type, or output buffer is full.
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bool deliverScrapToSalvageBay(BuildingId bayId);
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// Bypass the construction queue and create a fully-operational Building
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// immediately. Used for pre-placed structures (HQ, defence stations).
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// surfaceMask comes from the relevant config struct.
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BuildingId placeImmediate(BuildingType type,
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const std::vector<std::string>& surfaceMask,
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QPoint anchor, Rotation rotation);
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// Remove an operational building by id without refund (used for deaths).
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// Returns true if found and removed.
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bool removeBuilding(BuildingId id);
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// Mutable iteration over all operational buildings.
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void forEachBuilding(std::function<void(Building&)> fn);
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// -- Determinism ---------------------------------------------------------
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// Folds all building, construction-site, and tile-occupancy state into the
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// hasher in deterministic order (see docs/replay_design.md).
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void appendChecksum(Hasher& hasher) const;
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private:
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const BuildingDef* findBuildingDef(BuildingType type) const;
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const RecipeDef* findRecipe(const std::string& id, BuildingType type) const;
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const ShipDef* findShipDef(const std::string& id) const;
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const ModuleDef* findModuleDef(const std::string& id) const;
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void initBuffers(Building& b, const RecipeDef& recipe) const;
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// Buffers for an auto-recipe building (Smelter, Reprocessing Plant): input
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// caps span the union of every recipe of the building's type; no player
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// recipe is selected (REQ-BLD-SMELTER, REQ-BLD-REPROCESSING).
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void initAutoBuffers(Building& b) const;
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void initShipyardBuffers(Building& b) const;
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void initSalvageBayBuffer(Building& b) const;
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std::vector<Port> computeInputPorts(const Building& b) const;
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std::vector<Item> rollReprocessingOutput(const RecipeDef& recipe);
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bool bodyCellsWithinWorldBounds(
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const std::vector<QPoint>& bodyCells,
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QPoint anchor) const;
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const GameConfig& m_config;
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BeltSystem& m_belts;
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std::function<BuildingId()> m_allocateBuildingId;
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std::function<void(int)> m_addBuildingBlocks;
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std::function<void(const std::string&, QVector2D,
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const std::optional<ShipLayoutConfig>&)> m_spawnShip;
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std::function<bool(const std::string&)> m_isItemUnlocked;
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std::mt19937& m_rng;
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int m_asteroidWidth_tiles;
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std::vector<Building> m_buildings;
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std::deque<ConstructionSite> m_constructionQueue;
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// Maps every occupied body-cell coordinate to the entity that owns it.
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std::map<std::pair<int, int>, BuildingId> m_tileOccupancy;
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};
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