void fff::explosive::setPosition(float x, float y){
cpCircleShapeSetOffset(shape, (cpVect){x, y});
sprite.SetPosition(x, y);
explosion.SetPosition(x, y);
signal.SetX(x);
meters.SetX(x);
}
void PhysicsShapeCircle::updateScale()
{
cpFloat factor = std::abs(_newScaleX / _scaleX);
cpShape* shape = _cpShapes.front();
cpVect v = cpCircleShapeGetOffset(shape);
v = cpvmult(v, factor);
cpCircleShapeSetOffset(shape, v);
cpCircleShapeSetRadius(shape, cpCircleShapeGetRadius(shape) * factor);
PhysicsShape::updateScale();
}
// From chipmunk_unsafe.h
void wrCircleShapeSetOffset(cpShape *shape, cpVect *offset) {
cpCircleShapeSetOffset(shape, *offset);
}
static void pullControlPoint(cpShape *shape) {
int i;
float origArea, newArea, newMass;
control_point_t *cp;
cpPolyShape *ps;
cpCircleShape *circle;
cpVect lp;
cpVect verts[4];
cpConstraint *mouseJoint;
mouseJoint = atlMouseJoint();
if (!mouseJoint) {
lp = cpBodyWorld2Local(shape->body, atlMouseClickPos());
} else {
/* update joint position */
lp = cpBodyWorld2Local(shape->body, atlMousePos());
atlRemoveMouseJoint(g_Space);
}
atlCreateMouseJoint(g_Space, shape->body, lp);
cp = (control_point_t *)shape->data;
ps = (cpPolyShape *)cp->dom->shape;
control_point_t *circlePoint;
for (i = 0; i < 4; ++i) {
verts[i] = cpPolyShapeGetVert((cpShape *)ps, i);
if (lp.x > 0) {
if (verts[i].x > 0)
verts[i].x = lp.x;
else
verts[i].x = -lp.x;
} else if (lp.x < 0) {
if (verts[i].x < 0)
verts[i].x = lp.x;
else
verts[i].x = -lp.x;
}
if (lp.y > 0) {
if (verts[i].y > 0)
verts[i].y = lp.y;
else
verts[i].y = -lp.y;
} else if (lp.y < 0) {
if (verts[i].y < 0)
verts[i].y = lp.y;
else
verts[i].y = -lp.y;
}
circlePoint = (control_point_t *)cp->dom->pControlPoints[i];
circle = (cpCircleShape *)circlePoint->shape;
cpCircleShapeSetOffset((cpShape *)circle, verts[i]);
}
origArea = (fabs(dominoVerts[0].x)+dominoVerts[3].x) *
(fabs(dominoVerts[0].y)+dominoVerts[1].y);
newArea = (fabs(verts[0].x)+verts[3].x) *
(fabs(verts[0].y)+verts[1].y);
if (newArea > origArea)
newMass = newArea/origArea * 0.05f;
else
newMass = 1.0f;
cpBodySetMass(cp->dom->body, newMass);
cpPolyShapeSetVerts((cpShape *)ps, ps->numVerts, verts, cpvzero);
}
