cpPolyShape *
cpPolyShapeInit(cpPolyShape *poly, cpBody *body, int count, const cpVect *verts, cpTransform transform, cpFloat radius)
{
cpVect *hullVerts = (cpVect *)alloca(count*sizeof(cpVect));
// Transform the verts before building the hull in case of a negative scale.
for(int i=0; i<count; i++) hullVerts[i] = cpTransformPoint(transform, verts[i]);
unsigned int hullCount = cpConvexHull(count, hullVerts, hullVerts, NULL, 0.0);
return cpPolyShapeInitRaw(poly, body, hullCount, hullVerts, radius);
}
cpPolyShape *
cpBoxShapeInit2(cpPolyShape *poly, cpBody *body, cpBB box, cpFloat radius)
{
cpVect verts[] = {
cpv(box.r, box.b),
cpv(box.r, box.t),
cpv(box.l, box.t),
cpv(box.l, box.b),
};
return cpPolyShapeInitRaw(poly, body, 4, verts, radius);
}
DynamicObject::DynamicObject(float x, float y, float scale, float mass, float elast, float fric, int type, std::string gpuPath, std::string vPath, std::string fPath)
{
gpuDataList.push_back(gpuStore.add(gpuPath, 3.1415f));
shaderList.push_back(shaderStore.add(vPath, fPath));
transformOverrides = false;
height = scale;
modelScale = glm::vec3(scale);
width = height*gpuDataList[0]->whRatio;
/*** Set physics data ***/
body = cpBodyNew(mass, 0);
cpSpaceAddBody(space, body);
cpBodySetPosition(body, cpv(x, y));
ObjGPUData* gpuData = gpuDataList[0];
int vertCount = gpuData->vList.size();
cpVect vertices[vertCount];
glm::vec3 pos(x, y, 0);
for(int i = 0; i < vertCount; i++)
{
glm::vec4 currentVert = glm::translate(glm::mat4(1.0f), pos) * glm::scale(glm::mat4(1.0f), modelScale) * gpuData->rotation * gpuData->unitScale * glm::vec4(gpuData->vList[i],0);
vertices[i] = cpv(currentVert.x, currentVert.y);
}
shape = cpSpaceAddShape(space, (cpShape*) cpPolyShapeInitRaw(cpPolyShapeAlloc(), body, vertCount, vertices, 1.0f));
cpBodySetMoment(body, abs(cpMomentForPoly(mass, vertCount, vertices, cpvzero, 1.0f)));
cpShapeSetElasticity(shape, elast);
cpShapeSetFriction(shape, fric);
cpShapeSetUserData(shape, this);
cpShapeSetCollisionType(shape, type);
draw = true;
}
cpShape *
cpPolyShapeNewRaw(cpBody *body, int count, const cpVect *verts, cpFloat radius)
{
return (cpShape *)cpPolyShapeInitRaw(cpPolyShapeAlloc(), body, count, verts, radius);
}