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;
}
