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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\DebugLine.cpp

旋转

特效

属性

历史版本

#include "DebugLine.h"
#include "GameFactoryDemo.h"

using namespace GameFactory;


DebugLine::DebugLine(SceneManager* sceneManager)
{
	this->initialized = false;
	initialize(sceneManager);
}

DebugLine::~DebugLine(void)
{
	mSceneMgr->getRootSceneNode()->removeChild(mDebugNode);
}

void DebugLine::DrawDebugLine(Vector3 from, Vector3 to){
	assert(initialized && "Must call Initialize before draw the first DebugLine");
	Line3D* line = new Line3D();
	line->addPoint(from);
	line->addPoint(to);
	line->drawLines();
	line->setMaterial("lineMaterial");
	mDebugNode->attachObject(line);
	pool.push_back(line);
}

void DebugLine::initialize(SceneManager* sceneManager){
	if (initialized) return;
	initialized = true;
	mSceneMgr = sceneManager;
	mDebugNode = mSceneMgr->getRootSceneNode()->createChildSceneNode(Vector3(0,0,0));

	MaterialPtr mat = MaterialManager::getSingleton().create("lineMaterial",
		ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
	mat->setAmbient(ColourValue(1,0,1,1));
	mat->setDiffuse(ColourValue(1,0,0,1));
}

void DebugLine::ClearAll(){
	for (vector<Line3D*>::iterator iter = pool.begin();iter!=pool.end();iter++){
		mDebugNode->detachObject(*iter);
	}
	pool.clear();
}

Vector3 DebugLine::GetMouse3DPos(int mouseX, int mouseY){
	int width, height;
	Viewport* vp = SkeletalApplication::GetSingleton()->GetWindow()->getViewport(0);
	width = vp->getActualWidth();
	height = vp->getActualHeight();

	Real mX = (float)mouseX / width;
	Real mY = (float)mouseY / height;

	Ray ray = vp->getCamera()->getCameraToViewportRay(mX,mY);

	Vector3 hitPos;
	if (SkeletalApplication::GetSingleton()->RayCast(ray.getOrigin(),ray.getOrigin()+ray.getDirection(),&hitPos, NULL)){
		return hitPos;
	}
}

void DebugLine::DrawFromMousePos(int mouseX, int mouseY){
	//convert mouse pos to ratio form
	int width, height;
	Viewport* vp = SkeletalApplication::GetSingleton()->GetWindow()->getViewport(0);
	width = vp->getActualWidth();
	height = vp->getActualHeight();

	Real mX = (float)mouseX / width;
	Real mY = (float)mouseY / height;

	Ray ray = vp->getCamera()->getCameraToViewportRay(mX,mY);
	
	Vector3 hitPos, hitNorm;
	if (SkeletalApplication::GetSingleton()->RayCast(ray.getOrigin(),ray.getOrigin()+ray.getDirection(),&hitPos, &hitNorm)){
		DrawDebugLine(hitPos,hitPos+hitNorm.normalisedCopy()*5);
	}

	//Real mX = (Real)(mouseX - width/2)/width*2;
	//Real mY = (Real)(mouseY - height/2)/height*2;

	//Camera* cam = vp->getCamera();
	//Vector3 to = Vector3(mX/2,-mY/2,cam->getNearClipDistance());

	//to = cam->getViewMatrix().inverse() * to;
	//Vector3 from = cam->getPosition();
	//Vector3 hitPos;
	//if (SkeletalApplication::GetSingleton()->RayCast(from,to,&hitPos, NULL)){
	//	DrawDebugLine(from,hitPos);
	//}
}

DebugLine.cpp

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