source: GTP/trunk/App/Games/Jungle_Rumble/src/ParticleCube.cpp @ 1378

#include "dxstdafx.h"
#include ".\particlecube.h"

ParticleCube::ParticleCube(void) : Node()
{
        this->width = 0;
        this->height = 0;
        this->depth = 0;
        this->calcLocalPosition = false;
        this->calcLocalVelocity = false;
        this->updatePlanes();
}

ParticleCube::~ParticleCube(void)
{
}

void ParticleCube::setDimensions(float _w, float _h, float _d)
{
        this->width = _w;
        this->height = _h;
        this->depth = _d;
        this->updatePlanes();
}

void ParticleCube::update(float dt)
{
        this->myParticleList.clear();
        this->myParticlePositionList.clear();
        this->myParticleVelocityList.clear();
        this->updatePlanes();
        std::list<SPTR<Node> >* allParticles = this->myScene->getParticleList();
        std::list<SPTR<Node> >::iterator it;
        Node *node;
        bool inside;
        Vector nPos;
        for(it=allParticles->begin();it!=allParticles->end();it++) {
                node = (*it).get();
                inside = true;
                for(unsigned int j=0;j<6;j++) {
                        nPos = node->getAbsolutePosition();
                        if(wall[j].inFront(nPos)) {
                                inside = false;
                                break;
                        }
                }
                if(inside) {
                        D3DXMATRIXA16 invWorldMat;
                        Vector tempPos;
                        Vector tempVel;
                        if(this->calcLocalPosition || this->calcLocalVelocity) {
                                D3DXMatrixInverse(&invWorldMat, NULL, &this->myWorldMatrix);
                        }
                        if(this->calcLocalPosition) {
                                D3DXVec4Transform(&tempPos, &nPos, &invWorldMat);
                                this->myParticlePositionList.push_back(tempPos);
                        }
                        if(this->calcLocalVelocity) {
                                tempVel = Vector(node->getActor()->getLinearVelocity());
                                D3DXVec4Transform(&tempVel, &tempVel, &invWorldMat);
                                tempVel = tempVel - nPos;
                                this->myParticleVelocityList.push_back(tempVel);
                        }
                        this->myParticleList.push_back(node);
                }
        }
}

void ParticleCube::addForceToParticle(Node* particle, Vector force)
{
        NxActor* actor = particle->getActor();
        if(actor!=NULL) {
                //force = this->getAbsoluteVector(force) - this->getAbsolutePosition();
                this->getAbsoluteDirectionVector(force, force);
                actor->addForceAtLocalPos(force.getNxVector(), NxVec3(0,0,0));
        }
}

void ParticleCube::addVelocityToParticle(Node* particle, Vector velocity)
{
        NxActor* actor = particle->getActor();
        if(actor!=NULL) {
                //velocity = this->getAbsoluteVector(velocity) - this->getAbsolutePosition();
                this->getAbsoluteDirectionVector(velocity, velocity);
                Vector tempV(actor->getLinearVelocity());
                velocity = velocity + tempV;
                actor->setLinearVelocity(velocity.getNxVector());
        }
}

void ParticleCube::updatePlanes()
{
        Vector p[6];
        Vector np[6];

        p[FRONT].setXYZ(0, 0, this->depth/2);
        p[BACK].setXYZ(0, 0, -this->depth/2);
        p[TOP].setXYZ(0, this->height/2, 0);
        p[BOTTOM].setXYZ(0, -this->height/2, 0);
        p[LEFT].setXYZ(this->width/2, 0, 0);
        p[RIGHT].setXYZ(-this->width/2, 0, 0);

        np[FRONT].setXYZ(0,0,1);
        np[BACK].setXYZ(0,0,-1);
        np[TOP].setXYZ(0,1,0);
        np[BOTTOM].setXYZ(0,-1,0);
        np[LEFT].setXYZ(1, 0, 0);
        np[RIGHT].setXYZ(-1, 0, 0);

        for(int i=0;i<6;i++) {
                this->getAbsoluteVector(p[i], p[i]);
                this->getAbsoluteVector(np[i], np[i]);
                np[i] = np[i] - p[i];
                wall[i].setPoint(p[i]);
                wall[i].setNormal(np[i]);
        }
}