/** Searches for physics shapes that intersects the ray. */
public void RayCast(Func<CCPhysicsWorld, CCPhysicsRayCastInfo, RayCastContext, bool> func, CCPoint point1, CCPoint point2, RayCastContext context)
{
cp.AssertWarn(func != null, "func shouldn't be nullptr");
if (func != null)
{
CCRayCastCallbackInfo info = new CCRayCastCallbackInfo(this, func, point1, point2, context.data);
//Action<cpShape, cpVect, cpVect, float, object> func
CCPhysicsWorldCallback.Continues = true;
this.Space.SegmentQuery(
PhysicsHelper.CCPointToCpVect(point1),
PhysicsHelper.CCPointToCpVect(point2), 1f,
new cpShapeFilter(cp.NO_GROUP, cp.ALL_LAYERS, cp.ALL_LAYERS),
(shape, v1, v2, f, o) => CCPhysicsWorldCallback.RayCastCallbackFunc(shape, f, PhysicsHelper.cpVectToCCPoint(v1), ref info), context.data
);
}
}
public override void Update(float dt)
{
base.Update(dt);
float L = 150.0f;
CCPoint point1 = Window.WindowSizeInPixels.Center;
CCPoint d = new CCPoint(L * (float)Math.Cos(_angle), L * (float)Math.Sin(_angle));
CCPoint point2 = point1 + d;
RemoveChild(_node);
_node = new CCDrawNode();
switch (_mode)
{
case 0:
{
CCPoint point3 = point2;
//var func = Func< (PhysicsDemoRayCast::anyRay, this);
var ctx = new RayCastContext(point3);
Scene.PhysicsWorld.RayCast((world, info, data) =>
{
point3 = info.Contact;
return false;
}, point1, point2, ctx);
_node.DrawSegment(point1, point3, 1, STATIC_COLOR);
if (point2 != point3)
{
_node.DrawDot(point3, 2, new CCColor4F(1.0f, 1.0f, 1.0f, 1.0f));
}
AddChild(_node);
break;
}
case 1:
{
CCPoint point3 = point2;
float friction = 1.0f;
Func<CCPhysicsWorld, CCPhysicsRayCastInfo, RayCastContext, bool> func = new Func<CCPhysicsWorld, CCPhysicsRayCastInfo, RayCastContext, bool>(
(world, info, ctx) =>
{
if (friction > info.Fraction)
{
point3 = info.Contact;
friction = info.Fraction;
}
return true;
});
_node.DrawSegment(point1, point3, 1, STATIC_COLOR);
if (point2 != point3)
{
_node.DrawDot(point3, 2, new CCColor4F(1.0f, 1.0f, 1.0f, 1.0f));
}
AddChild(_node);
break;
}
case 2:
{
int MAX_MULTI_RAYCAST_NUM = 5;
CCPoint[] points = new CCPoint[MAX_MULTI_RAYCAST_NUM];
int num = 0;
Func<CCPhysicsWorld, CCPhysicsRayCastInfo, RayCastContext, bool> func = new Func<CCPhysicsWorld, CCPhysicsRayCastInfo, RayCastContext, bool>(
(world, info, data) =>
{
if (num < MAX_MULTI_RAYCAST_NUM)
{
points[num++] = info.Contact;
}
return true;
});
// Scene.PhysicsWorld.RayCast(func, point1, point2, null);
_node.DrawSegment(point1, point2, 1, STATIC_COLOR);
for (int i = 0; i < num; ++i)
{
_node.DrawDot(points[i], 2, new CCColor4F(1.0f, 1.0f, 1.0f, 1.0f));
}
AddChild(_node);
break;
}
default:
break;
}
_angle += 0.25f * (float)cp.M_PI / 180.0f;
}
/** Searches for physics shapes that intersects the ray. */
public void RayCast(Func <CCPhysicsWorld, CCPhysicsRayCastInfo, RayCastContext, bool> func, CCPoint point1, CCPoint point2, RayCastContext context)
{
cp.AssertWarn(func != null, "func shouldn't be nullptr");
if (func != null)
{
CCRayCastCallbackInfo info = new CCRayCastCallbackInfo(this, func, point1, point2, context.data);
//Action<cpShape, cpVect, cpVect, float, object> func
CCPhysicsWorldCallback.Continues = true;
this.Space.SegmentQuery(
PhysicsHelper.CCPointToCpVect(point1),
PhysicsHelper.CCPointToCpVect(point2), 1f,
new cpShapeFilter(cp.NO_GROUP, cp.ALL_LAYERS, cp.ALL_LAYERS),
(shape, v1, v2, f, o) => CCPhysicsWorldCallback.RayCastCallbackFunc(shape, f, PhysicsHelper.cpVectToCCPoint(v1), ref info), context.data
);
}
}
