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路径: \\game3dprogramming\materials\DarkPuzzle\GameEngine\Character.cpp
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#pragma once

//#include "DXUT.h"
#include "DarkPuzzle.h"

#include "Character.h"
#include "GameLevel.h"
#include "GameEngine.h"

namespace DarkBattle{
	#define FUNC_FRAMEMOVE "FrameMove"
	//#define FUNC_MOVE_WAYPOINT "MoveWayPoint"
	#define CHARACTER_NAME "Character"

	extern FILE* fdebug;
	//extern GameLevel* theGameLevel;
	const char* Character::characterNames[] = {"Hamster","DarkWizzard"};
	Character* Character::theHero = NULL;
	MyHashTable<Character> Character::pool;
	float Character::FireRange = 60;
	float Character::FireHeight = 8;
	int Character::EvaluateRange = 6;
	int Character::WayPointQueueLength = 10;

	void Character::ThinkStep(){
		ScriptEngine::GetInstance()->ExecuteOneParamFunction("ThinkStep",(void*)this,CHARACTER_NAME);
	}

	void Character::FireToHero(){
		if ((Character::GetHero()->GetPos()-GetPos()).Length() < Character::FireRange){
			if ( GameLevel::RayCast(GetPos()+Vec3(0,0,Character::FireHeight),
				Character::GetHero()->GetPos()+Vec3(0,0,Character::FireHeight),NULL,NULL) ){
			}else{
				GameLevel::DrawDebugLine(GetPos()+Vec3(0,0,Character::FireHeight),
					Character::GetHero()->GetPos()+Vec3(0,0,Character::FireHeight),Vec3(0,0,1));
			}
		}
	}

	Character::Character(Game3DObject* pObjectResource, btRigidBody* pRigidBody, const char* Name):
	Game3DInstance(pObjectResource,pRigidBody),
		closeList(GameLevel::GetInstance()->GetMap()->SizeX(),
			GameLevel::GetInstance()->GetMap()->SizeY()),
		distanceMap(GameLevel::GetInstance()->GetMap()->SizeX(),
			GameLevel::GetInstance()->GetMap()->SizeY()),
		isCovered(GameLevel::GetInstance()->GetMap()->SizeX(),
			GameLevel::GetInstance()->GetMap()->SizeY())
	{
		this->forceStop = false;
		this->isMoving = false;
		this->openList.Clean();

		this->hitPoint = 10;
		this->light = NULL;
		CLONE_STR(this->name,Name);
		type = identifyCharacterType(name);
		assert(type!=CHARACTER_NOTCHARACTER);
		//if (type==CHARACTER_HERO){
		//	GameLevel::GetInstance()->controllableCharacter = this;
		//	Character::theHero = this;
		//}
		this->light = Light::CreateLight(this,Light::LightTypesConst::LightEye);
		pool.Put(name,this);
	}
	Character* Character::Add(char* modelName, const char* name){
		Game3DObject* pObjResorce;
		btRigidBody* pRidBody;
		Game3DInstance::GetReference(modelName,&pObjResorce,&pRidBody);
		GameLevel::GetInstance()->AddRigidBody(pRidBody);
		return new Character(pObjResorce,pRidBody,name);
	}
	Character* Character::Get(char* name){
		return pool.Get(name);
	}
	int Character::identifyCharacterType(const char* name){
		for (int i=0;i<CHARACTER_TYPES;i++){
			if (strcmp(name, characterNames[i])==0)
				return i;
		}
		return CHARACTER_NOTCHARACTER;
	}
	void Character::Move(Direction direction){
		btVector3 impulse = btVector3(0,0,0);
		switch(direction){
				case LEFT:
					impulse.setX(-GameEngine::RunVelocity);
					break;
				case RIGHT:
					impulse.setX(GameEngine::RunVelocity);
					break;
				case UP:
					impulse.setY(-GameEngine::RunVelocity);
					break;
				case DOWN:
					impulse.setY(GameEngine::RunVelocity);
					break;
		}
		//pRigidBody->applyImpulse(impulse,btVector3(0,0,0));
		pRigidBody->activate();
		pRigidBody->setLinearVelocity(impulse);
	}
	void Character::MoveTo(Vec3 pos){
		isMoving = true;
		pRigidBody->activate();
		btVector3 impulse = btVector3(pos.x,pos.y,0);
		impulse = impulse - pRigidBody->getCenterOfMassPosition();
		impulse.setZ(0);
		impulse.normalize();

		float angle;
		if (impulse.getX()==0){
			if (impulse.getY()>0) angle = 3.14159/2;
			else angle = -3.14159/2;
		}else{
			angle = atanf(impulse.getY()/impulse.getX());
			if (impulse.getX()<0) angle+=3.14159;
		}
		angle+=3.14159/2;//to make this angle identical to character angle
		//if (angle>3.14159/2*3) angle = -(3.14159*2-angle);//make the negative part
		float curAngle = this->GetAngle();
		if (curAngle<0) curAngle+=3.14159*2;//make no negative part
		//impulse*=GameEngine::RunVelocity;
		//pRigidBody->setLinearVelocity(impulse);
		btVector3 vel = impulse*GameEngine::RunVelocity;
		//impulse*=GameEngine::RunAcceleration;
		//if ((pRigidBody->getLinearVelocity()-vel).length()>GameEngine::RunVelocityEpsilon){
		//	pRigidBody->applyImpulse(impulse,btVector3(0,0,0));
		//}else{
			pRigidBody->setLinearVelocity(vel);
		//}
		//DEBUG_OUTPUT("%f -- %f\n",curAngle/3.14159*180,angle/3.14159*180);
		float distPlus,distMinus,dist; 
		if (angle>curAngle){
			distPlus = abs(angle-curAngle);
			distMinus = abs(3.14159*2-angle+curAngle);
			if (distPlus<distMinus) dist = distPlus; else dist = -distMinus;
		}else{
			distMinus = abs(curAngle-angle);
			distPlus = abs(3.14159*2-curAngle+angle);
			if (distPlus<distMinus) dist = distPlus; else dist = -distMinus;
		}
		if (abs(dist)>3.14159/180*2)
			pRigidBody->setAngularVelocity(btVector3(0,0,dist));
		//if (curAngle<0 && angle > 3.14159) dist = curAngle - (-3.14159*2+angle);//must >0
		//else if (curAngle>3.14159 && angle <0) dist = -3.14159*2+curAngle - angle;//must <0
		//else dist = curAngle - angle;
		//if (dist>3.14159/180*2){
		//	pRigidBody->setAngularVelocity(btVector3(0,0,-dist/1.3));
		//}else if (dist<-3.14159/180*2)
		//	pRigidBody->setAngularVelocity(btVector3(0,0,+dist/1.3));
	}
	void Character::Jump(){
		pRigidBody->activate();
		//pRigidBody->setLinearVelocity(btVector3(0,0,20));
		pRigidBody->applyImpulse(btVector3(0,0,40),btVector3(0,0,10));
	}
	void Character::SetPos(Vec3 pos){
		btTransform trans = btTransform();
		trans.setIdentity();
		trans.setOrigin(btVector3(pos.x,pos.y,pos.z));
		pRigidBody->activate();
		pRigidBody->setLinearVelocity(btVector3(0,0,0));
		pRigidBody->setWorldTransform(trans);
	}
	Vec3 Character::GetPos(){
		//float ret[3];
		btVector3 pos = pRigidBody->getWorldTransform().getOrigin();
		return Vec3( pos.getX(),pos.getY(),pos.getZ());
		//return ret;
	}
	bool Character::IsAt(Vec3 pos){
		return GetPos().IsAt(pos);
	}
	void Character::Stop(){
		isMoving = false;
		btVector3 curLinearVel = pRigidBody->getLinearVelocity();
		pRigidBody->setLinearVelocity(btVector3(0,0,curLinearVel.z()));
		pRigidBody->setAngularVelocity(btVector3(0,0,0));
	}
	bool Character::CheckNameBelongToThisClass(const char* name){
		return (identifyCharacterType(name)!=CHARACTER_NOTCHARACTER);
	}
	void Character::FrameMove(float elapsedTime){
		//perform per frame action in Lua
		evaluatedThisFrame = false;
		ScriptEngine::GetInstance()->ExecuteOneParamFunction(FUNC_FRAMEMOVE,(void*)this,CHARACTER_NAME);
	}
	void Character::InitComputeDistanceMap(){
		Vec3 from = GetPos();
		Map::GetInstance()->InitPathFindingParameters(NULL,NULL,&distanceMap,&from,&openList,&closeList
			,NULL,NULL);
	}
	void Character::InitComputeDistanceMapBreath(){
		Vec3 from = GetPos();
		Map::GetInstance()->InitPathFindingParameters(NULL,NULL,&distanceMap,&from,&openList,&closeList
			,&visitedPos,&isCovered);
	}
	bool Character::ComputeDistanceMapStep(Vec3 to){
		return Map::GetInstance()->ComputeDistanceMapStep(to,distanceMap,openList,closeList);
	}
	bool Character::ComputeDistanceMapBreathStep(){
		return Map::GetInstance()->ComputeDistanceMapStep(GetPos(),Character::EvaluateRange,distanceMap,
			openList,closeList,visitedPos,isCovered);
	}
	void Character::InitMakePath(Vec3 to){
		Stop();
		Map::GetInstance()->GetCell(to,curPathPos.x,curPathPos.y);
		Map::GetInstance()->InitPathFindingParameters(&wayPoints,&smoothWP,NULL,NULL,NULL,NULL
			,NULL,NULL);
	}
	bool Character::MakePathStep(){
		return Map::GetInstance()->MakePathStep(GetPos(),curPathPos,distanceMap,wayPoints);
	}

	void Character::InitMakeSmoothPath(Vec3 to){
		Map::GetInstance()->InitMakeSmoothPath(GetPos(),smoothRefPos,smoothPrePos);
	}
	bool Character::MakeSmoothPathStep(Vec3 to){
		return Map::GetInstance()->MakeSmoothPathStep(smoothRefPos,smoothPrePos,to,wayPoints,smoothWP);
	}
	
	bool Character::IsCovered(const Vec3 &from, const Vec3 &to){
		return ((from-to).Length()>Character::FireRange) 
			|| GameLevel::RayCast(from + Vec3(0,0,Character::FireHeight),
			to + Vec3(0,0,Character::FireHeight),NULL,NULL);
	}
	bool Character::InitEvaluateEvadeStep(){
		if (evaluatedThisFrame) return false;
		if (isMoving) return 
			false;
		if (IsCovered(Character::GetHero()->GetPos(),GetPos())) return false;
		Map::GetInstance()->GetCell(GetPos(),bestSoFar.x,bestSoFar.y);
		bestCovered = false;
		bestDistance = 0;
		found = false;		return true;
	}
#define EVADE_STEPS 10
	bool Character::EvaluateEvadeStep(){
		evaluatedThisFrame = true;
		//ComputeDistanceMap();
		Vec2 pos;

		int processedStep = 0;
		while (!visitedPos.IsEmpty()){
			pos = visitedPos.Pop();
			if (!bestCovered){
				if (isCovered.get(pos.x,pos.y)){
					bestCovered = true;
					bestSoFar = pos;
					bestDistance = distanceMap.get(pos.x,pos.y);
					found =true;
				}
			}else{
				if (isCovered.get(pos.x,pos.y)){
					if (distanceMap.get(pos.x,pos.y)<bestDistance){
						bestSoFar = pos;
						bestDistance = distanceMap.get(pos.x,pos.y);
						found = true;
					}
				}
			}
			processedStep++;
			if (processedStep>EVADE_STEPS) return false;
		}
		if (found){
			//smoothWP.Clean();
			//smoothWP.PushBack(Map::GetInstance()->GetPosition(bestSoFar.x,bestSoFar.y));
			evaluatedPos = Map::GetInstance()->GetPosition(bestSoFar.x,bestSoFar.y);
		}
		return true;
		//if (found)
		//	MoveWayPointTo(Map::GetInstance()->GetPosition(bestSoFar.x,bestSoFar.y));
	}
	void Character::MakePath(Vec3 to){
		ScriptEngine::GetInstance()->ExecuteTwoParamFunction("MakePath",
			(void*)this,CHARACTER_NAME,(void*)&to,"Vec3");
	}
	void Character::MakeSmoothPath(Vec3 to){
		//MakePathStep(to);
		ScriptEngine::GetInstance()->ExecuteTwoParamFunction("MakeSmoothPath",
			(void*)this,CHARACTER_NAME,(void*)&to,"Vec3");
	}
	Character* Character::GetHero(){
		assert(Character::theHero!=NULL);
		return Character::theHero;
	}
	void Character::SetHero(Character* hero){
		assert(hero!=NULL);
		theHero = hero;
		GameLevel::GetInstance()->controllableCharacter = theHero;
	};
	btVector3 Character::GetCenter(){
		D3DXMATRIX ret = this->GetTransformMatrix();
		return btVector3(ret._41,ret._42,ret._43);
	}


}
Character.cpp
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