osb/source/game/interfaces/StarWorld.hpp

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