260 lines
12 KiB
C++
260 lines
12 KiB
C++
#ifndef STAR_WORLD_HPP
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#define STAR_WORLD_HPP
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#include "StarTileEntity.hpp"
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#include "StarInteractionTypes.hpp"
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#include "StarCollisionBlock.hpp"
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#include "StarForceRegions.hpp"
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#include "StarWorldGeometry.hpp"
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#include "StarTileModification.hpp"
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#include "StarLuaRoot.hpp"
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#include "StarRpcPromise.hpp"
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namespace Star {
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STAR_CLASS(World);
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STAR_CLASS(TileEntity);
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STAR_CLASS(ScriptedEntity);
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typedef function<void(World*)> WorldAction;
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class World {
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public:
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virtual ~World() {}
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// Will remain constant throughout the life of the world.
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virtual ConnectionId connection() const = 0;
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virtual WorldGeometry geometry() const = 0;
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// Update frame counter. Returns the frame that is *currently* being
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// updated, not the *last* frame, so during the first call to update(), this
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// would return 1
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virtual uint64_t currentStep() const = 0;
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// All methods that take int parameters wrap around or clamp so that all int
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// values are valid world indexes.
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virtual MaterialId material(Vec2I const& position, TileLayer layer) const = 0;
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virtual MaterialHue materialHueShift(Vec2I const& position, TileLayer layer) const = 0;
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virtual ModId mod(Vec2I const& position, TileLayer layer) const = 0;
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virtual MaterialHue modHueShift(Vec2I const& position, TileLayer layer) const = 0;
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virtual MaterialColorVariant colorVariant(Vec2I const& position, TileLayer layer) const = 0;
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virtual LiquidLevel liquidLevel(Vec2I const& pos) const = 0;
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virtual LiquidLevel liquidLevel(RectF const& region) const = 0;
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// Tests a tile modification list and returns the ones that are valid.
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virtual TileModificationList validTileModifications(TileModificationList const& modificationList, bool allowEntityOverlap) const = 0;
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// Apply a list of tile modifications in the best order to apply as many
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// possible, and returns the modifications that could not be applied.
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virtual TileModificationList applyTileModifications(TileModificationList const& modificationList, bool allowEntityOverlap) = 0;
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virtual bool isTileProtected(Vec2I const& pos) const = 0;
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virtual EntityPtr entity(EntityId entityId) const = 0;
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// *If* the entity is initialized immediately and locally, then will use the
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// passed in pointer directly and initialize it, and entity will have a valid
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// id in this world and be ready for use. This is always the case on the
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// server, but not *always* the case on the client.
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virtual void addEntity(EntityPtr const& entity) = 0;
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virtual EntityPtr closestEntity(Vec2F const& center, float radius, EntityFilter selector = {}) const = 0;
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virtual void forAllEntities(EntityCallback entityCallback) const = 0;
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// Query here is a fuzzy query based on metaBoundBox
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virtual void forEachEntity(RectF const& boundBox, EntityCallback entityCallback) const = 0;
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// Fuzzy metaBoundBox query for intersecting the given line.
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virtual void forEachEntityLine(Vec2F const& begin, Vec2F const& end, EntityCallback entityCallback) const = 0;
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// Performs action for all entities that occupies the given tile position
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// (only entity types laid out in the tile grid).
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virtual void forEachEntityAtTile(Vec2I const& pos, EntityCallbackOf<TileEntity> entityCallback) const = 0;
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// Like forEachEntity, but stops scanning when entityFilter returns true, and
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// returns the EntityPtr found, otherwise returns a null pointer.
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virtual EntityPtr findEntity(RectF const& boundBox, EntityFilter entityFilter) const = 0;
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virtual EntityPtr findEntityLine(Vec2F const& begin, Vec2F const& end, EntityFilter entityFilter) const = 0;
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virtual EntityPtr findEntityAtTile(Vec2I const& pos, EntityFilterOf<TileEntity> entityFilter) const = 0;
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// Is the given tile layer and position occupied by an entity or block?
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virtual bool tileIsOccupied(Vec2I const& pos, TileLayer layer, bool includeEphemeral = false) const = 0;
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// Iterate over the collision block for each tile in the region. Collision
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// polys for tiles can extend to a maximum of 1 tile outside of the natural
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// tile bounds.
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virtual void forEachCollisionBlock(RectI const& region, function<void(CollisionBlock const&)> const& iterator) const = 0;
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// Is there some connectable tile / tile based entity in this position? If
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// tilesOnly is true, only checks to see whether that tile is a connectable
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// material.
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virtual bool isTileConnectable(Vec2I const& pos, TileLayer layer, bool tilesOnly = false) const = 0;
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// Returns whether or not a given point is inside any colliding tile. If
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// collisionSet is Dynamic or Static, then does not intersect with platforms.
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virtual bool pointTileCollision(Vec2F const& point, CollisionSet const& collisionSet = DefaultCollisionSet) const = 0;
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// Returns whether line intersects with any colliding tiles.
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virtual bool lineTileCollision(Vec2F const& begin, Vec2F const& end, CollisionSet const& collisionSet = DefaultCollisionSet) const = 0;
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virtual Maybe<pair<Vec2F, Vec2I>> lineTileCollisionPoint(Vec2F const& begin, Vec2F const& end, CollisionSet const& collisionSet = DefaultCollisionSet) const = 0;
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// Returns a list of all the collidable tiles along the given line.
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virtual List<Vec2I> collidingTilesAlongLine(Vec2F const& begin, Vec2F const& end, CollisionSet const& collisionSet = DefaultCollisionSet, int maxSize = -1, bool includeEdges = true) const = 0;
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// Returns whether the given rect contains any colliding tiles.
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virtual bool rectTileCollision(RectI const& region, CollisionSet const& collisionSet = DefaultCollisionSet) const = 0;
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// Damage multiple tiles, avoiding duplication (objects or plants that occupy
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// more than one tile
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// position are only damaged once)
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virtual TileDamageResult damageTiles(List<Vec2I> const& tilePositions, TileLayer layer, Vec2F const& sourcePosition, TileDamage const& tileDamage, Maybe<EntityId> sourceEntity = {}) = 0;
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virtual InteractiveEntityPtr getInteractiveInRange(Vec2F const& targetPosition, Vec2F const& sourcePosition, float maxRange) const = 0;
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// Can the target entity be reached from the given position within the given radius?
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virtual bool canReachEntity(Vec2F const& position, float radius, EntityId targetEntity, bool preferInteractive = true) const = 0;
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virtual RpcPromise<InteractAction> interact(InteractRequest const& request) = 0;
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virtual float gravity(Vec2F const& pos) const = 0;
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virtual float windLevel(Vec2F const& pos) const = 0;
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virtual float lightLevel(Vec2F const& pos) const = 0;
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virtual bool breathable(Vec2F const& pos) const = 0;
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virtual float threatLevel() const = 0;
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virtual StringList environmentStatusEffects(Vec2F const& pos) const = 0;
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virtual StringList weatherStatusEffects(Vec2F const& pos) const = 0;
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virtual bool exposedToWeather(Vec2F const& pos) const = 0;
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virtual bool isUnderground(Vec2F const& pos) const = 0;
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virtual bool disableDeathDrops() const = 0;
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virtual List<PhysicsForceRegion> forceRegions() const = 0;
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// Gets / sets world-wide properties
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virtual Json getProperty(String const& propertyName, Json const& def = {}) const = 0;
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virtual void setProperty(String const& propertyName, Json const& property) = 0;
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virtual void timer(int stepsDelay, WorldAction worldAction) = 0;
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virtual double epochTime() const = 0;
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virtual uint32_t day() const = 0;
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virtual float dayLength() const = 0;
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virtual float timeOfDay() const = 0;
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virtual LuaRootPtr luaRoot() = 0;
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// Locate a unique entity, if the target is local, the promise will be
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// finished before being returned. If the unique entity is not found, the
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// promise will fail.
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virtual RpcPromise<Vec2F> findUniqueEntity(String const& uniqueEntityId) = 0;
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// Send a message to a local or remote scripted entity. If the target is
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// local, the promise will be finished before being returned. Entity id can
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// either be EntityId or a uniqueId.
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virtual RpcPromise<Json> sendEntityMessage(Variant<EntityId, String> const& entity, String const& message, JsonArray const& args = {}) = 0;
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// Helper non-virtual methods.
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bool isServer() const;
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bool isClient() const;
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List<EntityPtr> entityQuery(RectF const& boundBox, EntityFilter selector = {}) const;
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List<EntityPtr> entityLineQuery(Vec2F const& begin, Vec2F const& end, EntityFilter selector = {}) const;
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List<TileEntityPtr> entitiesAtTile(Vec2I const& pos, EntityFilter filter = EntityFilter()) const;
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// Find tiles near the given point that are not occupied (according to
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// tileIsOccupied)
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List<Vec2I> findEmptyTiles(Vec2I pos, unsigned maxDist = 5, size_t maxAmount = 1, bool excludeEphemeral = false) const;
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// Do tile modification that only uses a single tile.
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bool canModifyTile(Vec2I const& pos, TileModification const& modification, bool allowEntityOverlap) const;
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bool modifyTile(Vec2I const& pos, TileModification const& modification, bool allowEntityOverlap);
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TileDamageResult damageTile(Vec2I const& tilePosition, TileLayer layer, Vec2F const& sourcePosition, TileDamage const& tileDamage, Maybe<EntityId> sourceEntity = {});
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// Returns closest entity for which lineCollision between the given center
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// position and the entity position returns false.
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EntityPtr closestEntityInSight(Vec2F const& center, float radius, CollisionSet const& collisionSet = DefaultCollisionSet, EntityFilter selector = {}) const;
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// Returns whether point collides with any collision geometry.
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bool pointCollision(Vec2F const& point, CollisionSet const& collisionSet = DefaultCollisionSet) const;
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// Returns first point along line that collides with any collision geometry, along
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// with the normal of the intersected line, if any.
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Maybe<pair<Vec2F, Maybe<Vec2F>>> lineCollision(Line2F const& line, CollisionSet const& collisionSet = DefaultCollisionSet) const;
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// Returns whether poly collides with any collision geometry.
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bool polyCollision(PolyF const& poly, CollisionSet const& collisionSet = DefaultCollisionSet) const;
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// Helper template methods. Only queries entities of the given template
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// type, and casts them to the appropriate pointer type.
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template <typename EntityT>
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shared_ptr<EntityT> get(EntityId entityId) const;
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template <typename EntityT>
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List<shared_ptr<EntityT>> query(RectF const& boundBox, EntityFilterOf<EntityT> selector = {}) const;
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template <typename EntityT>
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shared_ptr<EntityT> closest(Vec2F const& center, float radius, EntityFilterOf<EntityT> selector = {}) const;
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template <typename EntityT>
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shared_ptr<EntityT> closestInSight(Vec2F const& center, float radius, CollisionSet const& collisionSet, EntityFilterOf<EntityT> selector = {}) const;
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template <typename EntityT>
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List<shared_ptr<EntityT>> lineQuery(Vec2F const& begin, Vec2F const& end, EntityFilterOf<EntityT> selector = {}) const;
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template <typename EntityT>
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List<shared_ptr<EntityT>> atTile(Vec2I const& pos) const;
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};
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template <typename EntityT>
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shared_ptr<EntityT> World::get(EntityId entityId) const {
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return as<EntityT>(entity(entityId));
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}
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template <typename EntityT>
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List<shared_ptr<EntityT>> World::query(RectF const& boundBox, EntityFilterOf<EntityT> selector) const {
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List<shared_ptr<EntityT>> list;
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forEachEntity(boundBox, [&](EntityPtr const& entity) {
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if (auto e = as<EntityT>(entity)) {
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if (!selector || selector(e))
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list.append(move(e));
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}
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});
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return list;
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}
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template <typename EntityT>
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shared_ptr<EntityT> World::closest(Vec2F const& center, float radius, EntityFilterOf<EntityT> selector) const {
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return as<EntityT>(closestEntity(center, radius, entityTypeFilter<EntityT>(selector)));
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}
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template <typename EntityT>
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shared_ptr<EntityT> World::closestInSight(
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Vec2F const& center, float radius, CollisionSet const& collisionSet, EntityFilterOf<EntityT> selector) const {
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return as<EntityT>(closestEntityInSight(center, radius, collisionSet, entityTypeFilter<EntityT>(selector)));
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}
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template <typename EntityT>
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List<shared_ptr<EntityT>> World::lineQuery(
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Vec2F const& begin, Vec2F const& end, EntityFilterOf<EntityT> selector) const {
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List<shared_ptr<EntityT>> list;
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forEachEntityLine(begin, end, [&](EntityPtr entity) {
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if (auto e = as<EntityT>(move(entity))) {
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if (!selector || selector(e))
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list.append(move(e));
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}
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});
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return list;
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}
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template <typename EntityT>
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List<shared_ptr<EntityT>> World::atTile(Vec2I const& pos) const {
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List<shared_ptr<EntityT>> list;
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forEachEntityAtTile(pos, [&](TileEntityPtr const& entity) {
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if (auto e = as<EntityT>(entity))
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list.append(move(e));
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});
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return list;
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}
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}
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#endif
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