bool RigTriangulate(const Rig& rig, std::vector<Rig>& finalTriangles)
{
Vector2dVector a;
for(int i = 0; i < rig.size(); i++)
{
a.push_back(Vector2d(rig[i].x,rig[i].y));
}
Vector2dVector result;
bool success = Triangulate::Process(a,result);
// print out the results.
int tcount = result.size()/3;
for (int i=0; i<tcount; i++)
{
const Vector2d &p1 = result[i*3+0];
const Vector2d &p2 = result[i*3+1];
const Vector2d &p3 = result[i*3+2];
Rig triangle;
triangle.push_back(ccp(p1.GetX(),p1.GetY()));
triangle.push_back(ccp(p2.GetX(),p2.GetY()));
triangle.push_back(ccp(p3.GetX(),p3.GetY()));
finalTriangles.push_back(triangle);
}
return success;
}
void CPhysics::drawSquare(b2Vec2* points,b2Vec2 center,float angle,int VertexCount, float Camera_Z)
{
Vector2dVector a;
for (int i = 0; i < VertexCount; i++)
{
a.push_back(Vector2d(points[i].x,points[i].y));
}
Vector2dVector result;
Triangulate::Process(a,result);
int tcount = result.size()/3;
glColor3f(0.7,0.3,0.7);
//glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glTranslatef(center.x *M2P,center.y*M2P,Camera_Z);
glRotatef(angle*180.0/M_PI,0,0,1);
glBegin(GL_TRIANGLES);
for(int i=0;i<tcount;i++){
if (i == 0)
glColor3f(1,0,1);
else if (i == 1)
glColor3f(1,0,0);
else if (i == 2)
glColor3f(0,1,0);
else if (i == 3)
glColor3f(0,0,1);
else if (i == 4)
glColor3f(0,1,1);
else if (i == 5)
glColor3f(1,0,1);
glVertex2f(result[i*3+0].GetX()*M2P,result[i*3+0].GetY()*M2P);
glVertex2f(result[i*3+1].GetX()*M2P,result[i*3+1].GetY()*M2P);
glVertex2f(result[i*3+2].GetX()*M2P,result[i*3+2].GetY()*M2P);
}
glEnd();
glPopMatrix();
glColor3f(1,1,1);
}
void ModuleBuildings::addBuildingRoof(Building* building, float height, float elevation){
//create && fill vector a with polygon corners
Vector2dVector a;
bool first = true;
for(auto corner : building->getCorners()) {
if (first) { first=false; continue; }
a.push_back( Vector2d(corner[0], corner[1]));
}
Vector2dVector result; // allocate an STL vector to hold the answer.
Triangulate::Process(a,result); // Invoke the triangulator to triangulate this polygon.
//create roof
height = (float)height * Config::get()->BUILDING_FLOOR_HEIGHT + elevation;
int tcount = result.size()/3;
for (int i=0; i<tcount; i++) {
const Vector2d &p1 = result[i*3+0];
const Vector2d &p2 = result[i*3+1];
const Vector2d &p3 = result[i*3+2];
//create triangle
for (int j=0; j<3; j++) {
r_geo_d->inds->addValue(r_geo_d->inds->size());
r_geo_d->norms->addValue(Vec3f(0, 1, 0));
}
r_geo_d->pos->addValue(Vec3f(p1.GetX(), height, p1.GetY()));
r_geo_d->pos->addValue(Vec3f(p2.GetX(), height, p2.GetY()));
r_geo_d->pos->addValue(Vec3f(p3.GetX(), height, p3.GetY()));
//r_geo_d->texs->addValue(Vec2f(p1.GetX()/factor, p1.GetY()/factor)); //use only border color of texture
//r_geo_d->texs->addValue(Vec2f(p2.GetX()/factor, p2.GetY()/factor)); //use only border color of texture
//r_geo_d->texs->addValue(Vec2f(p3.GetX()/factor, p3.GetY()/factor)); //use only border color of texture
float mx = (p1.GetX() + p2.GetX() + p3.GetX() )/3.0;
float my = (p1.GetY() + p2.GetY() + p3.GetY() )/3.0;
r_geo_d->texs->addValue(convRTC(p1.GetX(), p1.GetY(), Vec2f(mx,my))); //use only border color of texture
r_geo_d->texs->addValue(convRTC(p2.GetX(), p2.GetY(), Vec2f(mx,my))); //use only border color of texture
r_geo_d->texs->addValue(convRTC(p3.GetX(), p3.GetY(), Vec2f(mx,my))); //use only border color of texture
//r_geo_d->texs->addValue(Vec2f(0.0, 0.9)); //use only border color of texture
//r_geo_d->texs->addValue(Vec2f(0.1, 0.9)); //use only border color of texture
//r_geo_d->texs->addValue(Vec2f(0.0, 1.0)); //use only border color of texture
}
}
void PRFilledPolygon::setPoints(Vector2dVector &points) {
CC_SAFE_FREE(areaTrianglePoints);
CC_SAFE_FREE(textureCoordinates);
Vector2dVector triangulatedPoints = PRRatcliffTriangulator::triangulateVertices(points);
areaTrianglePointCount = triangulatedPoints.size();
areaTrianglePoints = (CCPoint*) malloc(sizeof(CCPoint) * areaTrianglePointCount);
textureCoordinates = (CCPoint*) malloc(sizeof(CCPoint) * areaTrianglePointCount);
for (int i = 0; i < areaTrianglePointCount; i++) {
Vector2d v = (Vector2d)triangulatedPoints.at(i);
areaTrianglePoints[i] = CCPointMake(v.GetX(), v.GetY());
}
calculateTextureCoordinates();
}
void CCutScene::createBackground()
{
Point points[4] =
{
Point(0, 0), Point(0, 2048), Point(2048, 2048), Point(2048, 0)
};
Vector2dVector vcPoints;
vcPoints.clear();
for (int i = 0; i < 4; i++)
{
vcPoints.push_back(Vector2d(points[i].x, points[i].y));
}
PRFilledPolygon *filledPolygon = PRFilledPolygon::filledPolygonWithPointsAndTexture(vcPoints, "daanban.png");
//filledPolygon->setPhysicsBody(PhysicsBody::createPolygon(points, 4));
filledPolygon->setPosition(Vec2::ZERO + Vec2(0, (1536 - 2048) / 2));
addChild(filledPolygon, 80);
}
LDEfloat Triangulate::Area(const Vector2dVector &contour)
{
int n = contour.size();
LDEfloat A=0.0f;
for(int p=n-1,q=0; q<n; p=q++)
{
A+= contour[p].x*contour[q].y - contour[q].x*contour[p].y;
}
return A*0.5f;
}
bool PRKitDemoScene::init()
{
if(!Layer::init())
{
return false;
}
auto color_bg = LayerColor::create(Color4B(125, 125, 125, 125));
addChild(color_bg);
auto demo_info_label = Label::create(demo_info(), "Helvetica", 25, Size(500, 200), TextHAlignment::LEFT);
this->addChild(demo_info_label);
demo_info_label->setAnchorPoint(Point(0.0f, 1.0f));
demo_info_label->setColor(Color3B(255, 255, 255));
demo_info_label->setPosition(VisibleRect::leftTop() + Point(60, -60));
auto backMenuItem = MenuItemImage::create("backNormal.png", "backSelected.png", CC_CALLBACK_1(PRKitDemoScene::backCallback, this));
auto restartMenuItem = MenuItemImage::create("refreshNormal.png", "refreshSelected.png", CC_CALLBACK_1(PRKitDemoScene::restartCallback, this));
restartMenuItem->setPosition(VisibleRect::rightTop() + Point(-200, -80));
backMenuItem->setPosition(restartMenuItem->getPosition() + Point(90, 0));
auto menu = Menu::create(backMenuItem, restartMenuItem, NULL);
menu->setPosition(Point::ZERO);
this->addChild(menu, 300);
//--------------------- START
Vector2dVector polygonPoints;
polygonPoints.push_back(Vector2d(100, 100));
polygonPoints.push_back(Vector2d(200, 100));
polygonPoints.push_back(Vector2d(300, 200));
polygonPoints.push_back(Vector2d(400, 300));
polygonPoints.push_back(Vector2d(500, 500));
Texture2D *texture = Director::getInstance()->getTextureCache()->addImage("pattern1.png");
PRFilledPolygon *filledPolygon = PRFilledPolygon::filledPolygonWithPointsAndTexture(polygonPoints, texture);
addChild(filledPolygon);
//---------------------- END
return true;
}
double Triangulate::Area(const Vector2dVector &contour)
{
int n = contour.size();
double A=0.0;
for(int p=n-1,q=0; q<n; p=q++)
{
A+= contour[p].GetX()*contour[q].GetY() - contour[q].GetX()*contour[p].GetY();
}
return A*0.5;
}
PolygonSprite* PolygonSprite::initWithTexture(Texture2D* texture, b2Body* body, bool original)
{
//gather all the vertices from our Box2D shape
b2Fixture *originalFixture = body->GetFixtureList();
b2PolygonShape *shape = (b2PolygonShape*)originalFixture->GetShape();
int vertexCount = shape->GetVertexCount();
Vector2dVector points;
for(int i = 0; i < vertexCount; i++) {
points.push_back( Vector2d(shape->GetVertex(i).x * PTM_RATIO, shape->GetVertex(i).y * PTM_RATIO) );
}
if(initWithPointsAndTexture(points, texture))
{
_body = body;
_body->SetUserData(this);
_original = original;
// gets the center of the polygon
_centroid = this->_body->GetLocalCenter();
// assign an anchor point based on the center
_anchorPoint = ccp(_centroid.x * PTM_RATIO / texture->getContentSize().width,
_centroid.y * PTM_RATIO / texture->getContentSize().height);
// more init stuff here later when you expand PolygonSprite
// slice
_sliceExited = false;
_sliceEntered = false;
_entryPoint.SetZero();
_exitPoint.SetZero();
_sliceEntryTime = 0;
// fruits
_state = kStateIdle;
}
return this;
}
float Triangulate::Area(const Vector2dVector &contour)
{
int n = (int)contour.size();
float A=0.0f;
for(int p=n-1,q=0; q<n; p=q++)
{
A+= contour[p].GetX()*contour[q].GetY() - contour[q].GetX()*contour[p].GetY();
}
return A*0.5f;
}
NS_CC_BEGIN
Vector2dVector PRRatcliffTriangulator::triangulateVertices ( Vector2dVector aVertices )
{
Vector2dVector* pInputPointsForTriangulation = new Vector2dVector;
for ( KDuint uIndex = 0; uIndex < aVertices.size ( ); uIndex++ )
{
Vector2d tValue = (Vector2d) aVertices.at ( uIndex );
pInputPointsForTriangulation->push_back ( tValue );
}
// Triangulate results
Vector2dVector aTriangulatedPoints;
Triangulate::Process ( *pInputPointsForTriangulation, aTriangulatedPoints );
delete pInputPointsForTriangulation;
return aTriangulatedPoints;
}
void EasyPolygon::setPoints(Vector2dVector &points) {
if (points.size() <= 0) {
areaTrianglePointCount = 0;
return;
}
CC_SAFE_FREE(areaTrianglePoints);
CC_SAFE_FREE(textureCoordinates);
/*Vector2dVector triangulatedPoints = PRRatcliffTriangulator::triangulateVertices(points);
areaTrianglePointCount = (int)triangulatedPoints.size();
areaTrianglePoints = (Point*) malloc(sizeof(Point) * areaTrianglePointCount);
textureCoordinates = (Point*) malloc(sizeof(Point) * areaTrianglePointCount);
for (int i = 0; i < areaTrianglePointCount; i++) {
Vector2d v = (Vector2d)triangulatedPoints.at(i);
areaTrianglePoints[i] = Point(v.GetX(), v.GetY());
// printf("x = %f, y = %f\n", v.GetX, v.GetY);
}*/
areaTrianglePointCount = 6;
areaTrianglePoints = (Point*) malloc(sizeof(Point) * areaTrianglePointCount);
textureCoordinates = (Point*) malloc(sizeof(Point) * areaTrianglePointCount);
Vector2d v = points.at(0);
areaTrianglePoints[0] = Point(v.GetX(), v.GetY());
v = points.at(3);
areaTrianglePoints[1] = Point(v.GetX(), v.GetY());
v = points.at(2);
areaTrianglePoints[2] = Point(v.GetX(), v.GetY());
v = points.at(2);
areaTrianglePoints[3] = Point(v.GetX(), v.GetY());
v = points.at(1);
areaTrianglePoints[4] = Point(v.GetX(), v.GetY());
v = points.at(0);
areaTrianglePoints[5] = Point(v.GetX(), v.GetY());
calculateTextureCoordinates();
}
bool FruitCutNinjaScene::init()
{
if (!Layer::init())
{
return false;
}
_visibleSize = Director::getInstance()->getVisibleSize();
_deltaRemainder = 0.0f;
_sliceTag = 1;
//createBackground();
//加入封闭的盒子，用作墙壁
auto body = PhysicsBody::createEdgeBox(_visibleSize, PHYSICSBODY_MATERIAL_DEFAULT, 3);
auto wallNode = Node::create();
wallNode->setPosition(_visibleSize.width/2, _visibleSize.height/2);
wallNode->setPhysicsBody(body);
this->addChild(wallNode);
auto touchListener = EventListenerTouchAllAtOnce::create();
touchListener->onTouchesBegan = CC_CALLBACK_2(FruitCutNinjaScene::onTouchesBegan, this);
touchListener->onTouchesMoved = CC_CALLBACK_2(FruitCutNinjaScene::onTouchesMoved, this);
touchListener->onTouchesEnded = CC_CALLBACK_2(FruitCutNinjaScene::onTouchesEnded, this);
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
auto texture = Director::getInstance()->getTextureCache()->addImage("streak.png");
for (int i = 0; i < 3; i++)
{
Blade* blade = Blade::createWithMaximumPoint(50);
blade->setAutoDim(false);
blade->setTexture(texture);
addChild(blade, 100);
_blades.pushBack(blade);
}
//PEShapeCache::getInstance()->addBodysWithFile("pineapple.plist");
//auto body = PEShapeCache::getInstance()->getPhysicsBodyByName("pineapple");
//Point points[4] = {Point(-128 + 128, -128 + 128), Point(-128 + 128, 128 + 128), Point(128 + 128, 128 + 128), Point(128 + 128, -128 + 128)};
/*
Point points[9] =
{
Point(157,50), Point(119, 13), Point(54, 0), Point(7,36), Point(5, 78), Point(23,118), Point(170,252), Point(235, 244), Point(237,158)
};
*/
Point points[4] =
{
Point(0, 0), Point(0, 512), Point(512, 512), Point(512, 0)
};
Vector2dVector vcPoints;
vcPoints.clear();
for (int i = 0; i < 4; i++)
{
vcPoints.push_back(Vector2d(points[i].x, points[i].y));
}
//texture = Director::getInstance()->getTextureCache()->addImage("boluo.png");
PRFilledPolygon *filledPolygon = PRFilledPolygon::filledPolygonWithPointsAndTexture(vcPoints, "boluo.png");
filledPolygon->setPhysicsBody(PhysicsBody::createPolygon(points, 4));
filledPolygon->setPosition(Vec2(400, 700));
filledPolygon->getPhysicsBody()->setTag(_sliceTag);
filledPolygon->getPhysicsBody()->setGravityEnable(false);
addChild(filledPolygon, 80);
filledPolygon = PRFilledPolygon::filledPolygonWithPointsAndTexture(vcPoints, "xigua.png");
filledPolygon->setPhysicsBody(PhysicsBody::createPolygon(points, 4));
filledPolygon->setPosition(Vec2(1200, 700));
filledPolygon->getPhysicsBody()->setTag(_sliceTag);
filledPolygon->getPhysicsBody()->setGravityEnable(false);
addChild(filledPolygon, 80);
for (int i = 0; i < PARTICLE_COUNT; i++)
{
m_pEmitter[i] = ParticleSystemQuad::create("pineapple_splurt.plist");
this->addChild(m_pEmitter[i], 100);
m_pEmitter[i]->setAutoRemoveOnFinish(false);
m_pEmitter[i]->setDuration(0.1f);
m_pEmitter[i]->setScale(1.5f);
}
//本DEMO要做成一个切水果原型，尚未完成:)
scheduleUpdate();
return true;
}
void FruitCutNinjaScene::clipPoly(PhysicsShapePolygon* shape, Point normal, float distance)
{
PhysicsBody* body = shape->getBody();
int count = shape->getPointsCount();
int pointsCount = 0;
Point* points = new Point[count + 1];
Vector2dVector vcPoints;
vcPoints.clear();
Vector2d v2Point(0, 0);
for (int i=0, j=count-1; i<count; j=i, ++i)
{
Point a = body->local2World(shape->getPoint(j));
float aDist = a.dot(normal) - distance;
if (aDist < 0.0f)
{
points[pointsCount] = a;
++pointsCount;
}
Point b = body->local2World(shape->getPoint(i));
float bDist = b.dot(normal) - distance;
if (aDist*bDist < 0.0f)
{
float t = std::fabs(aDist)/(std::fabs(aDist) + std::fabs(bDist));
Vec2 v2Tmp = a.lerp(b, t);
points[pointsCount] = v2Tmp;
++pointsCount;
}
}
Point center = PhysicsShape::getPolyonCenter(points, pointsCount);
for (int i = 0; i < pointsCount; i++)
{
points[i] = body->world2Local(points[i]);
vcPoints.push_back(Vector2d(points[i].x, points[i].y));
}
PhysicsBody* polyon = PhysicsBody::createPolygon(points, pointsCount);
PRFilledPolygon* pNode = (PRFilledPolygon*)(body->getNode());
std::string sName = pNode->getTextureName();
//auto texture = Director::getInstance()->getTextureCache()->addImage("pineapple.png");
PRFilledPolygon *filledPolygon = PRFilledPolygon::filledPolygonWithPointsAndTexture(vcPoints, sName.c_str());
filledPolygon->setPhysicsBody(polyon);
filledPolygon->setPosition(body->getPosition() + normal * -40);
filledPolygon->getPhysicsBody()->setTag(_sliceTag);
filledPolygon->getPhysicsBody()->setGravityEnable(false);
polyon->setVelocity(body->getVelocityAtWorldPoint(center));
polyon->setAngularVelocity(body->getAngularVelocity());
polyon->setTag(_sliceTag);
//polyon->applyImpulse(normal * -100);
addChild(filledPolygon, 80);
/*
CPolygonSprite* pSprite = CPolygonSprite::create();
pSprite->initWithFile("pineapple.png", polyon, false);
pSprite->setPosition(body->getPosition());
polyon->setTag(_sliceTag);
addChild(pSprite);
*/
/*
Node* node = Node::create();
PhysicsBody* polyon = PhysicsBody::createPolygon(points, pointsCount, PHYSICSBODY_MATERIAL_DEFAULT, -center);
node->setPosition(center);
node->setPhysicsBody(polyon);
polyon->setVelocity(body->getVelocityAtWorldPoint(center));
polyon->setAngularVelocity(body->getAngularVelocity());
polyon->setTag(_sliceTag);
addChild(node);
*/
delete[] points;
}
void CCutScene::clipPoly(PhysicsShapePolygon* shape, Point normal, float distance)
{
PhysicsBody* body = shape->getBody();
int count = shape->getPointsCount();
int pointsCount = 0;
Point* points = new Point[count + 1];
Vector2dVector vcPoints;
vcPoints.clear();
Vector2d v2Point(0, 0);
for (int i=0, j=count-1; i<count; j=i, ++i)
{
Point a = body->local2World(shape->getPoint(j));
float aDist = a.dot(normal) - distance;
if (aDist < 0.0f)
{
points[pointsCount] = a;
++pointsCount;
}
Point b = body->local2World(shape->getPoint(i));
float bDist = b.dot(normal) - distance;
if (aDist*bDist < 0.0f)
{
float t = std::fabs(aDist)/(std::fabs(aDist) + std::fabs(bDist));
Vec2 v2Tmp = a.lerp(b, t);
points[pointsCount] = v2Tmp;
++pointsCount;
}
}
Point center = PhysicsShape::getPolyonCenter(points, pointsCount);
for (int i = 0; i < pointsCount; i++)
{
points[i] = body->world2Local(points[i]);
vcPoints.push_back(Vector2d(points[i].x, points[i].y));
}
PhysicsBody* polyon = PhysicsBody::createPolygon(points, pointsCount);
CFoodCut* pNode = (CFoodCut*)(body->getNode());
std::vector<int> vMaterials;
vMaterials.clear();
vMaterials = pNode->getMaterials();
MATERIAL_ID eId = MI_MAX;
if (vMaterials.size() != 0)
{
eId = (MATERIAL_ID)vMaterials[0];
}
CFoodCut *filledPolygon = CFoodCut::create(eId, vcPoints, pNode->getPanziIndex(), pNode->getTouchedIndex());
filledPolygon->setPhysicsBody(polyon);
int nTmp = rand() % 50 + 50;
int nTmpRotate = rand() % 30 - 60;
filledPolygon->setPosition(body->getPosition());
//filledPolygon->setRotation(filledPolygon->getRotation() + nTmpRotate);
filledPolygon->getPhysicsBody()->setTag(_sliceTag);
filledPolygon->getPhysicsBody()->setGravityEnable(false);
polyon->setVelocity(body->getVelocityAtWorldPoint(center));
//polyon->setAngularVelocity(body->getAngularVelocity());
polyon->setTag(_sliceTag);
float fMass = polyon->getMass();
float fV = 80;
float fImpulse = fMass * fV;
float fTmpX = (float)(Random() % 30) / 100.0f - 0.15f;
float fTmpY = (float)(rand() % 30) / 100.0f - 0.15f;
polyon->applyImpulse((normal + Vec2(fTmpX, fTmpY)) * -fImpulse);
polyon->setLinearDamping(0.8f);
addChild(filledPolygon, 80);
filledPolygon->setBirthTime(getCurTime());
m_vCutFoods.push_back(filledPolygon);
m_nSliceCount ++;
delete[] points;
}
bool Triangulate::Process(const Vector2dVector &contour,Vector2dVector &result)
{
/* allocate and initialize list of Vertices in polygon */
int n = contour.size();
if ( n < 3 ) return false;
int *V = new int[n];
/* we want a counter-clockwise polygon in V */
if ( 0.0 < Area(contour) )
for (int v=0; v<n; v++) V[v] = v;
else
for(int v=0; v<n; v++) V[v] = (n-1)-v;
int nv = n;
/* remove nv-2 Vertices, creating 1 triangle every time */
int count = 2*nv; /* error detection */
for(int m=0, v=nv-1; nv>2; )
{
/* if we loop, it is probably a non-simple polygon */
if (0 >= (count--))
{
//** Triangulate: ERROR - probable bad polygon!
return false;
}
/* three consecutive vertices in current polygon, <u,v,w> */
int u = v ; if (nv <= u) u = 0; /* previous */
v = u+1; if (nv <= v) v = 0; /* new v */
int w = v+1; if (nv <= w) w = 0; /* next */
if ( Snip(contour,u,v,w,nv,V) )
{
int a,b,c,s,t;
/* true names of the vertices */
a = V[u]; b = V[v]; c = V[w];
/* output Triangle */
result.push_back( contour[a] );
result.push_back( contour[b] );
result.push_back( contour[c] );
m++;
/* remove v from remaining polygon */
for(s=v,t=v+1;t<nv;s++,t++) V[s] = V[t]; nv--;
/* resest error detection counter */
count = 2*nv;
}
}
delete V;
return true;
}
Trampolim::Trampolim(float x, float y)
{
moveangle=0.0f;
realangle=0.0f;
type = O_TRAMPOLIN;
pX=x;
pY=y;
sm = ScreenManager::getInstance();
/**********codigo Box2D***************/
//define o tipo e a posição
bodydef.position.Set(x,y);
bodydef.type = b2_kinematicBody;
//cria o corpo usando as definições
body=NULL;
b2World * world = ((Level*)sm->getCurrentScreen())->getWorld();
body = world->CreateBody(&bodydef);
b2FixtureDef fd;
fd.density = 1.0f;
fd.friction = 0.3f;
fd.restitution = 0.9f;
//uso do triangulate.cpp -> pega num poligono e divide em triangulos
Vector2dVector a;
a.push_back(b2Vec2(-2.0f, 0.0f));
a.push_back(b2Vec2(0.0f, 0.0f));
a.push_back(b2Vec2(2.0f, 0.0f));
a.push_back(b2Vec2(2.0f, 2.0f));
a.push_back(b2Vec2(1.442f, 1.636f));
a.push_back(b2Vec2(1.676f, 1.36f ));
a.push_back(b2Vec2(0.0f, 1.251f ));
a.push_back(b2Vec2(-0.67f, 1.36f ));
a.push_back(b2Vec2(-1.442f, 1.636f));
a.push_back(b2Vec2(-2.0f, 2.0f));
Vector2dVector result;
// Invoke the triangulator to triangulate this polygon.
Triangulate::Process(a,result);
// print out the results.
int tcount = result.size()/3;
for (int i=0; i<tcount; i++)
{
b2Vec2 vect[3];
vect[0] = result[i*3+0];
vect[1] = result[i*3+1];
vect[2] = result[i*3+2];
b2PolygonShape shape;
shape.Set(vect,3);
fd.shape = (b2Shape*)&shape;
body->CreateFixture(&fd);
printf("Triangle %d => (%f,%f) (%f,%f) (%f,%f)\n",i+1,vect[0].x,vect[0].y,vect[1].x,vect[1].y,vect[2].x,vect[2].y);
}
//usa o userdata para guardar um ponteiro no objecto body do Box2D (usado nas colisões)
body->SetUserData(this);
/**************************************/
/***********codigo CLanlib***************/
//criar a sprite
sprite = sm->getSprite("trampolim");
sprite->set_linear_filter(true);
}
bool Triangulate::Process(const Vector2dVector &contour,Vector2dVector &result)
{
#if defined(PRECISE_TRIANGULATION)
std::vector<p2t::Point*> _polyline;
for (auto _p : contour){
_polyline.push_back(new p2t::Point(_p.GetX(), _p.GetY()));
}
p2t::CDT* _cdt = new p2t::CDT(_polyline);
_cdt->Triangulate();
std::vector<p2t::Triangle*> _triangles = _cdt->GetTriangles();
for (auto _t : _triangles){
auto _pt1 = _t->GetPoint(0);
auto _pt2 = _t->GetPoint(1);
auto _pt3 = _t->GetPoint(2);
result.push_back(Vector2d(_pt1->x, _pt1->y));
result.push_back(Vector2d(_pt2->x, _pt2->y));
result.push_back(Vector2d(_pt3->x, _pt3->y));
}
delete _cdt;
for (auto _p : _polyline)
delete _p;
return true;
#else
/* allocate and initialize list of Vertices in polygon */
int n = (int)contour.size();
if ( n < 3 ) return false;
int *V = new int[n];
/* we want a counter-clockwise polygon in V */
if ( 0.0f < Area(contour) )
for (int v=0; v<n; v++) V[v] = v;
else
for(int v=0; v<n; v++) V[v] = (n-1)-v;
int nv = n;
/* remove nv-2 Vertices, creating 1 triangle every time */
int count = 2*nv; /* error detection */
for(int m=0, v=nv-1; nv>2; )
{
/* if we loop, it is probably a non-simple polygon */
if (0 >= (count--))
{
//** Triangulate: ERROR - probable bad polygon!
return false;
}
/* three consecutive vertices in current polygon, <u,v,w> */
int u = v ; if (nv <= u) u = 0; /* previous */
v = u+1; if (nv <= v) v = 0; /* new v */
int w = v+1; if (nv <= w) w = 0; /* next */
if ( Snip(contour,u,v,w,nv,V) )
{
int a,b,c,s,t;
/* true names of the vertices */
a = V[u]; b = V[v]; c = V[w];
/* output Triangle */
result.push_back( contour[a] );
result.push_back( contour[b] );
result.push_back( contour[c] );
m++;
/* remove v from remaining polygon */
for(s=v,t=v+1;t<nv;s++,t++) V[s] = V[t]; nv--;
/* resest error detection counter */
count = 2*nv;
}
}
//Danilo S Carvalho Alteration from delete to delete[]
delete[] V;
return true;
#endif
}
