void PhysicsShapeEdgeSegment::updateScale()
{
cpFloat factorX = _newScaleX / _scaleX;
cpFloat factorY = _newScaleY / _scaleY;
cpShape* shape = _cpShapes.front();
cpVect a = cpSegmentShapeGetA(shape);
a.x *= factorX;
a.y *= factorY;
cpVect b = cpSegmentShapeGetB(shape);
b.x *= factorX;
b.y *= factorY;
cpSegmentShapeSetEndpoints(shape, a, b);
PhysicsShape::updateScale();
}
void PhysicsShapeEdgeChain::updateScale()
{
cpFloat factorX = _newScaleX / _scaleX;
cpFloat factorY = _newScaleY / _scaleY;
for (auto shape : _cpShapes)
{
cpVect a = cpSegmentShapeGetA(shape);
a.x *= factorX;
a.y *= factorY;
cpVect b = cpSegmentShapeGetB(shape);
b.x *= factorX;
b.y *= factorY;
cpSegmentShapeSetEndpoints(shape, a, b);
}
PhysicsShape::updateScale();
}
void PhysicsShapeEdgePolygon::updateScale()
{
cpFloat factorX = PhysicsHelper::float2cpfloat(_newScaleX / _scaleX);
cpFloat factorY = PhysicsHelper::float2cpfloat(_newScaleY / _scaleY);
for (auto shape : _cpShapes)
{
cpVect a = cpSegmentShapeGetA(shape);
a.x *= factorX;
a.y *= factorY;
cpVect b = cpSegmentShapeGetB(shape);
b.x *= factorX;
b.y *= factorY;
cpSegmentShapeSetEndpoints(shape, a, b);
}
PhysicsShape::updateScale();
}
static void
update(int ticks)
{
messageString[0] = '\0';
cpVect start = cpvzero;
cpVect end = /*cpv(0, 85);//*/mousePoint;
cpVect lineEnd = end;
{
char infoString[1024];
sprintf(infoString, "Query: Dist(%f) Point%s, ", cpvdist(start, end), cpvstr(end));
strcat(messageString, infoString);
}
cpSegmentQueryInfo info = {};
if(cpSpaceSegmentQueryFirst(space, start, end, CP_ALL_LAYERS, CP_NO_GROUP, &info)){
cpVect point = cpSegmentQueryHitPoint(start, end, info);
lineEnd = cpvadd(point, cpvzero);//cpvmult(info.n, 4.0f));
char infoString[1024];
sprintf(infoString, "Segment Query: Dist(%f) Normal%s", cpSegmentQueryHitDist(start, end, info), cpvstr(info.n));
strcat(messageString, infoString);
} else {
strcat(messageString, "Segment Query (None)");
}
cpSegmentShapeSetEndpoints(querySeg, start, lineEnd);
cpShapeCacheBB(querySeg); // force it to update it's collision detection data so it will draw
// normal other stuff.
int steps = 1;
cpFloat dt = 1.0f/60.0f/(cpFloat)steps;
for(int i=0; i<steps; i++){
cpSpaceStep(space, dt);
}
}
void wrSegmentShapeSetEndpoints(cpShape *shape, cpVect *a, cpVect *b) {
cpSegmentShapeSetEndpoints(shape, *a, *b);
}
JNIEXPORT void JNICALL Java_com_wiyun_engine_chipmunk_Segment_setEndpoints
(JNIEnv * env, jobject thiz, jfloat aX, jfloat aY, jfloat bX, jfloat bY) {
cpShape* shape = (cpShape*)env->GetIntField(thiz, g_fid_Shape_mPointer);
cpSegmentShapeSetEndpoints(shape, cpv(aX, aY), cpv(bX, bY));
}