static void DrawShape(cpShape *shape, DrawNode *renderer)
{
cpBody *body = shape->body;
Color4F color = ColorForBody(body);
switch (shape->CP_PRIVATE(klass)->type)
{
case CP_CIRCLE_SHAPE:
{
cpCircleShape *circle = (cpCircleShape *)shape;
cpVect center = circle->tc;
cpFloat radius = circle->r;
renderer->drawDot(cpVert2Point(center), cpfmax(radius, 1.0), color);
renderer->drawSegment(cpVert2Point(center), cpVert2Point(cpvadd(center, cpvmult(body->rot, radius))), 1.0, color);
}
break;
case CP_SEGMENT_SHAPE:
{
cpSegmentShape *seg = (cpSegmentShape *)shape;
renderer->drawSegment(cpVert2Point(seg->ta), cpVert2Point(seg->tb), cpfmax(seg->r, 2.0), color);
}
break;
case CP_POLY_SHAPE:
{
cpPolyShape *poly = (cpPolyShape *)shape;
Color4F line = color;
line.a = cpflerp(color.a, 1.0, 0.5);
Vec2* pPoints = cpVertArray2ccpArrayN(poly->tVerts, poly->numVerts);
renderer->drawPolygon(pPoints, poly->numVerts, color, 1.0, line);
CC_SAFE_DELETE_ARRAY(pPoints);
}
break;
default:
cpAssertHard(false, "Bad assertion in DrawShape()");
}
}
static void DrawShape(cpShape *shape, DrawNode *renderer)
{
cpBody *body = cpShapeGetBody(shape);
Color4F color = ColorForBody(body);
switch (shape->CP_PRIVATE(klass)->type)
{
case CP_CIRCLE_SHAPE:
{
cpCircleShape *circle = (cpCircleShape *)shape;
cpVect center = circle->tc;
cpFloat radius = circle->r;
renderer->drawDot(cpVert2Point(center), cpfmax(radius, 1.0), color);
renderer->drawSegment(cpVert2Point(center), cpVert2Point(cpvadd(center, cpvmult(cpBodyGetRotation(body), radius))), 1.0, color);
}
break;
case CP_SEGMENT_SHAPE:
{
cpSegmentShape *seg = (cpSegmentShape *)shape;
renderer->drawSegment(cpVert2Point(seg->ta), cpVert2Point(seg->tb), cpfmax(seg->r, 2.0), color);
}
break;
case CP_POLY_SHAPE:
{
cpPolyShape* poly = (cpPolyShape*)shape;
Color4F line = color;
line.a = cpflerp(color.a, 1.0, 0.5);
int num = poly->count;
Vec2* pPoints = new (std::nothrow) Vec2[num];
for(int i=0;i<num;++i)
pPoints[i] = cpVert2Point(poly->planes[i].v0);
renderer->drawPolygon(pPoints, num, color, 1.0, line);
CC_SAFE_DELETE_ARRAY(pPoints);
}
break;
default:
cpAssertHard(false, "Bad assertion in DrawShape()");
}
}
static void DrawConstraint(cpConstraint *constraint, DrawNode *renderer)
{
cpBody *body_a = cpConstraintGetBodyA(constraint);
cpBody *body_b = cpConstraintGetBodyB(constraint);
if(cpConstraintIsPinJoint(constraint))
{
cpVect a = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpPinJointGetAnchorA(constraint), cpBodyGetRotation(body_a)));
cpVect b = cpvadd(cpBodyGetPosition(body_b), cpvrotate(cpPinJointGetAnchorB(constraint), cpBodyGetRotation(body_b)));
renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR);
renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR);
renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR);
}
else if(cpConstraintIsSlideJoint(constraint))
{
cpVect a = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpSlideJointGetAnchorA(constraint), cpBodyGetRotation(body_a)));
cpVect b = cpvadd(cpBodyGetPosition(body_b), cpvrotate(cpSlideJointGetAnchorB(constraint), cpBodyGetRotation(body_b)));
renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR);
renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR);
renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR);
}
else if(cpConstraintIsPivotJoint(constraint))
{
cpVect a = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpPivotJointGetAnchorA(constraint), cpBodyGetRotation(body_a)));
cpVect b = cpvadd(cpBodyGetPosition(body_b), cpvrotate(cpPivotJointGetAnchorB(constraint), cpBodyGetRotation(body_b)));
renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR);
renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR);
}
else if(cpConstraintIsGrooveJoint(constraint))
{
cpVect a = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpGrooveJointGetGrooveA(constraint), cpBodyGetRotation(body_a)));
cpVect b = cpvadd(cpBodyGetPosition(body_a), cpvrotate(cpGrooveJointGetGrooveB(constraint), cpBodyGetRotation(body_a)));
cpVect c = cpvadd(cpBodyGetPosition(body_b), cpvrotate(cpGrooveJointGetAnchorB(constraint), cpBodyGetRotation(body_b)));
renderer->drawDot(cpVert2Point(c), 3.0, CONSTRAINT_COLOR);
renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR);
}
else if(cpConstraintIsDampedSpring(constraint))
{
// TODO: uninplemented
}
else
{
// printf("Cannot draw constraint\n");
}
}
static void DrawConstraint(cpConstraint *constraint, DrawNode *renderer)
{
cpBody *body_a = constraint->a;
cpBody *body_b = constraint->b;
const cpConstraintClass *klass = constraint->CP_PRIVATE(klass);
if (klass == cpPinJointGetClass())
{
cpPinJoint *joint = (cpPinJoint *)constraint;
cpVect a = cpBodyLocal2World(body_a, joint->anchr1);
cpVect b = cpBodyLocal2World(body_b, joint->anchr2);
renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR);
renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR);
renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR);
}
else if (klass == cpSlideJointGetClass())
{
cpSlideJoint *joint = (cpSlideJoint *)constraint;
cpVect a = cpBodyLocal2World(body_a, joint->anchr1);
cpVect b = cpBodyLocal2World(body_b, joint->anchr2);
renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR);
renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR);
renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR);
}
else if (klass == cpPivotJointGetClass())
{
cpPivotJoint *joint = (cpPivotJoint *)constraint;
cpVect a = cpBodyLocal2World(body_a, joint->anchr1);
cpVect b = cpBodyLocal2World(body_b, joint->anchr2);
renderer->drawDot(cpVert2Point(a), 3.0, CONSTRAINT_COLOR);
renderer->drawDot(cpVert2Point(b), 3.0, CONSTRAINT_COLOR);
}
else if (klass == cpGrooveJointGetClass())
{
cpGrooveJoint *joint = (cpGrooveJoint *)constraint;
cpVect a = cpBodyLocal2World(body_a, joint->grv_a);
cpVect b = cpBodyLocal2World(body_a, joint->grv_b);
cpVect c = cpBodyLocal2World(body_b, joint->anchr2);
renderer->drawDot(cpVert2Point(c), 3.0, CONSTRAINT_COLOR);
renderer->drawSegment(cpVert2Point(a), cpVert2Point(b), 1.0, CONSTRAINT_COLOR);
}
else if (klass == cpDampedSpringGetClass())
{
// TODO
}
else
{
// printf("Cannot draw constraint\n");
}
}
