| public PickShape ( System.Vector2 worldCoord ) : Duality.Components.Physics.ShapeInfo | ||
| worldCoord | System.Vector2 | |
| 리턴 | Duality.Components.Physics.ShapeInfo | |
private ShapeInfo PickShape(RigidBody body, Vector2 worldCoord)
{
// Special case for LoopShapes, because they are by definition unpickable
foreach (LoopShapeInfo loop in body.Shapes.OfType<LoopShapeInfo>())
{
for (int i = 0; i < loop.Vertices.Length; i++)
{
Vector2 worldV1 = body.GameObj.Transform.GetWorldPoint(loop.Vertices[i]);
Vector2 worldV2 = body.GameObj.Transform.GetWorldPoint(loop.Vertices[(i + 1) % loop.Vertices.Length]);
float dist = MathF.PointLineDistance(worldCoord.X, worldCoord.Y, worldV1.X, worldV1.Y, worldV2.X, worldV2.Y);
if (dist < 5.0f) return loop;
}
}
// Do a physical picking operation
return body.PickShape(worldCoord);
}
private ShapeInfo PickShape(RigidBody body, Vector2 worldCoord)
{
// Special case for Loop- and ChainShapes, because they are by definition unpickable
Rect worldRect = Rect.Align(Alignment.Center, worldCoord.X, worldCoord.Y, 10.0f, 10.0f);
foreach (ShapeInfo shape in body.Shapes)
{
LoopShapeInfo loop = shape as LoopShapeInfo;
ChainShapeInfo chain = shape as ChainShapeInfo;
Vector2[] vertices = null;
if (loop != null) vertices = loop.Vertices;
if (chain != null) vertices = chain.Vertices;
if (vertices != null && IsOutlineBoxIntersection(body.GameObj.Transform, vertices, worldRect))
return shape;
}
// Do a physical picking operation
return body.PickShape(worldCoord);
}
