public void ComposeShape()
{
ColliderShapeChanged = false;
if (ColliderShape != null)
{
if (!ColliderShape.IsPartOfAsset)
{
ColliderShape.Dispose();
ColliderShape = null;
}
else
{
ColliderShape = null;
}
}
CanScaleShape = true;
if (ColliderShapes.Count == 1) //single shape case
{
if (ColliderShapes[0] == null)
{
return;
}
if (ColliderShapes[0].GetType() == typeof(ColliderShapeAssetDesc))
{
CanScaleShape = false;
}
ColliderShape = PhysicsColliderShape.CreateShape(ColliderShapes[0]);
ColliderShape?.UpdateLocalTransformations();
}
else if (ColliderShapes.Count > 1) //need a compound shape in this case
{
var compound = new CompoundColliderShape();
foreach (var desc in ColliderShapes)
{
if (desc == null)
{
continue;
}
if (desc.GetType() == typeof(ColliderShapeAssetDesc))
{
CanScaleShape = false;
}
var subShape = PhysicsColliderShape.CreateShape(desc);
if (subShape != null)
{
compound.AddChildShape(subShape);
}
}
ColliderShape = compound;
ColliderShape.UpdateLocalTransformations();
}
}
public ColliderShape CreateShape(IInlineColliderShapeDesc desc)
{
ColliderShape shape = null;
var shapeType = desc.GetType();
if (shapeType == typeof(BoxColliderShapeDesc))
{
var boxDesc = (BoxColliderShapeDesc)desc;
if (boxDesc.Is2D)
{
shape = new Box2DColliderShape(new Vector2(boxDesc.Size.X, boxDesc.Size.Y))
{
LocalOffset = boxDesc.LocalOffset, LocalRotation = boxDesc.LocalRotation
};
}
else
{
shape = new BoxColliderShape(boxDesc.Size)
{
LocalOffset = boxDesc.LocalOffset, LocalRotation = boxDesc.LocalRotation
};
}
}
else if (shapeType == typeof(CapsuleColliderShapeDesc))
{
var capsuleDesc = (CapsuleColliderShapeDesc)desc;
shape = new CapsuleColliderShape(capsuleDesc.Is2D, capsuleDesc.Radius, capsuleDesc.Length, capsuleDesc.Orientation)
{
LocalOffset = capsuleDesc.LocalOffset, LocalRotation = capsuleDesc.LocalRotation
};
}
else if (shapeType == typeof(CylinderColliderShapeDesc))
{
var cylinderDesc = (CylinderColliderShapeDesc)desc;
shape = new CylinderColliderShape(cylinderDesc.Height, cylinderDesc.Radius, cylinderDesc.Orientation)
{
LocalOffset = cylinderDesc.LocalOffset, LocalRotation = cylinderDesc.LocalRotation
};
}
else if (shapeType == typeof(SphereColliderShapeDesc))
{
var sphereDesc = (SphereColliderShapeDesc)desc;
shape = new SphereColliderShape(sphereDesc.Is2D, sphereDesc.Radius)
{
LocalOffset = sphereDesc.LocalOffset
};
}
else if (shapeType == typeof(StaticPlaneColliderShapeDesc))
{
var planeDesc = (StaticPlaneColliderShapeDesc)desc;
shape = new StaticPlaneColliderShape(planeDesc.Normal, planeDesc.Offset);
}
else if (shapeType == typeof(ColliderShapeAssetDesc))
{
var assetDesc = (ColliderShapeAssetDesc)desc;
if (assetDesc.Shape == null)
{
return(null);
}
if (assetDesc.Shape.Shape == null)
{
assetDesc.Shape.Shape = PhysicsColliderShape.Compose(assetDesc.Shape.Descriptions);
}
shape = assetDesc.Shape.Shape;
}
if (shape != null)
{
shape.Parent = null; //from now parent might change
shape.UpdateLocalTransformations();
}
return(shape);
}