prism/actorhandler.cpp at develop · CaptainDreamcast/prism · GitHub

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#include "prism/actorhandler.h"

#include "prism/datastructures.h"
#include "prism/log.h"
#include "prism/memoryhandler.h"
#include "prism/wrapper.h"

namespace prism {

	typedef struct {
		ActorBlueprint mBP;
		ListIterator mListEntry;

		int mID;
		void* mData;
		int mIsOwned;
		int mIsPausable;
	} Actor;

	static struct {
		IntMap mActors;
		List mSequentialActorList;
		int mIsInitialized;
	} gPrismActorHandlerData;

	ActorBlueprint makeActorBlueprint(LoadActorFunction tLoad, UnloadActorFunction tUnload, UpdateActorFunction tUpdate, DrawActorFunction tDraw, IsActorActiveFunction tIsActive) {
		ActorBlueprint ret;
		ret.mLoad = tLoad;
		ret.mUnload = tUnload;
		ret.mUpdate = tUpdate;
		ret.mDraw = tDraw;
		ret.mIsActive = tIsActive;
		return ret;
	}

	void setupActorHandler()
	{
		setProfilingSectionMarkerCurrentFunction();
		if (gPrismActorHandlerData.mIsInitialized) {
			logWarning("Actor handling already initialized.");
			shutdownActorHandler();
		}

		gPrismActorHandlerData.mActors = new_int_map();
		gPrismActorHandlerData.mSequentialActorList = new_list();
		gPrismActorHandlerData.mIsInitialized = 1;
	}

	static void unloadActor(Actor* e) {
		if (e->mBP.mUnload) e->mBP.mUnload(e->mData);

		if (e->mIsOwned) {
			freeMemory(e->mData);
		}

		int_map_remove(&gPrismActorHandlerData.mActors, e->mID);
	}

	static int removeActorCB(void* tCaller, void* tData) {
		(void)tCaller;
		Actor* e = (Actor*)tData;
		unloadActor(e);
		return 1;
	}

	void shutdownActorHandler()
	{
		setProfilingSectionMarkerCurrentFunction();
		list_remove_predicate_inverted(&gPrismActorHandlerData.mSequentialActorList, removeActorCB, NULL);
		delete_int_map(&gPrismActorHandlerData.mActors);
		delete_list(&gPrismActorHandlerData.mSequentialActorList);
		gPrismActorHandlerData.mIsInitialized = 0;
	}

	static int updateSingleActor(void* tCaller, void* tData) {
		(void)tCaller;
		Actor* e = (Actor*)tData;
		if (isWrapperPaused() && e->mIsPausable) return 0;

		int isActive = e->mBP.mIsActive == NULL || e->mBP.mIsActive(e->mData);
		if (!isActive) {
			unloadActor(e);
			return 1;
		}
		if (e->mBP.mUpdate) e->mBP.mUpdate(e->mData);
		return 0;
	}

	void updateActorHandler()
	{
		setProfilingSectionMarkerCurrentFunction();
		list_remove_predicate(&gPrismActorHandlerData.mSequentialActorList, updateSingleActor, NULL);
	}

	static void drawSingleActor(void* tCaller, void* tData) {
		(void)tCaller;
		Actor* e = (Actor*)tData;

		if (e->mBP.mDraw) e->mBP.mDraw(e->mData);
	}

	void drawActorHandler()
	{
		setProfilingSectionMarkerCurrentFunction();
		list_map(&gPrismActorHandlerData.mSequentialActorList, drawSingleActor, NULL);
	}

	int instantiateActor(const ActorBlueprint& tBP)
	{
		return instantiateActorWithData(tBP, NULL, 0);
	}

	int instantiateActorWithData(const ActorBlueprint& tBP, void* tData, int tIsOwned)
	{
		Actor* e = (Actor*)allocMemory(sizeof(Actor));
		e->mBP = tBP;
		e->mData = tData;
		e->mIsOwned = tIsOwned;
		e->mIsPausable = 1;

		if (e->mBP.mLoad) e->mBP.mLoad(e->mData);

		list_push_back_owned(&gPrismActorHandlerData.mSequentialActorList, e);
		e->mListEntry = list_iterator_end(&gPrismActorHandlerData.mSequentialActorList);

		e->mID = int_map_push_back(&gPrismActorHandlerData.mActors, e);
		return e->mID;
	}

	void performOnActor(int tID, ActorInteractionFunction tFunc, void* tCaller)
	{
		Actor* e = (Actor*)int_map_get(&gPrismActorHandlerData.mActors, tID);
		tFunc(tCaller, e->mData);
	}

	void setActorUnpausable(int tID)
	{
		Actor* e = (Actor*)int_map_get(&gPrismActorHandlerData.mActors, tID);
		e->mIsPausable = 0;
	}

	void removeActor(int tID)
	{
		Actor* e = (Actor*)int_map_get(&gPrismActorHandlerData.mActors, tID);
		unloadActor(e);
		list_iterator_remove(&gPrismActorHandlerData.mSequentialActorList, e->mListEntry);
	}

	void* getActorData(int tID)
	{
		Actor* e = (Actor*)int_map_get(&gPrismActorHandlerData.mActors, tID);
		return e->mData;
	}

}