void SetupCollisionNodes(SCNNode node)
{
if (node.Geometry != null)
{
Console.WriteLine(node.Name);
node.PhysicsBody = SCNPhysicsBody.CreateStaticBody();
node.PhysicsBody.CategoryBitMask = (nuint)(int)Bitmask.Collision;
var options = new SCNPhysicsShapeOptions {
ShapeType = SCNPhysicsShapeType.ConcavePolyhedron
};
node.PhysicsBody.PhysicsShape = SCNPhysicsShape.Create(node, options);
// Get grass area to play the right sound steps
if (node.Geometry.FirstMaterial.Name == "grass-area")
{
if (grassArea != null)
{
node.Geometry.FirstMaterial = grassArea;
}
else
{
grassArea = node.Geometry.FirstMaterial;
}
}
// Get the water area
if (node.Geometry.FirstMaterial.Name == "water")
{
waterArea = node.Geometry.FirstMaterial;
}
// Temporary workaround because concave shape created from geometry instead of node fails
SCNNode child = SCNNode.Create();
node.AddChildNode(child);
child.Hidden = true;
child.Geometry = node.Geometry;
node.Geometry = null;
node.Hidden = false;
if (node.Name == "water")
{
node.PhysicsBody.CategoryBitMask = (nuint)(int)Bitmask.Water;
}
}
foreach (SCNNode child in node.ChildNodes)
{
if (!child.Hidden)
{
SetupCollisionNodes(child);
}
}
}
public SCNPhysicsBody MakePhysicsBody(SCNGeometry geometry)
{
var option = new SCNPhysicsShapeOptions();
option.KeepAsCompound = true;
option.ShapeType = SCNPhysicsShapeType.ConcavePolyhedron;
var shape = SCNPhysicsShape.Create(geometry, option);
return(SCNPhysicsBody.CreateBody(type: SCNPhysicsBodyType.Static, shape));
}
void SetupPathColliders()
{
// Collect all the nodes that start with path_ under the dummy_front object.
// Set those objects as Physics category ground and create a static concave mesh collider.
// The simulation will use these as the ground to walk on.
SCNNode front = RootNode.FindChildNode("dummy_front", true);
foreach (var fronChild in front.ChildNodes)
{
foreach (var child in fronChild.ChildNodes)
{
if (child.Name.Contains("path_"))
{
//the geometry is attached to the first child node of the node named path
SCNNode path = child.ChildNodes [0];
var options = new SCNPhysicsShapeOptions {
ShapeType = SCNPhysicsShapeType.ConcavePolyhedron
};
path.PhysicsBody = SCNPhysicsBody.CreateBody(SCNPhysicsBodyType.Static, SCNPhysicsShape.Create(path.Geometry, options));
path.PhysicsBody.CategoryBitMask = GameCollisionCategory.Ground;
}
}
}
}
void SetupPathColliders ()
{
// Collect all the nodes that start with path_ under the dummy_front object.
// Set those objects as Physics category ground and create a static concave mesh collider.
// The simulation will use these as the ground to walk on.
SCNNode front = RootNode.FindChildNode ("dummy_front", true);
foreach (var fronChild in front.ChildNodes)
foreach (var child in fronChild.ChildNodes) {
if (child.Name.Contains ("path_")) {
//the geometry is attached to the first child node of the node named path
SCNNode path = child.ChildNodes [0];
var options = new SCNPhysicsShapeOptions { ShapeType = SCNPhysicsShapeType.ConcavePolyhedron };
path.PhysicsBody = SCNPhysicsBody.CreateBody (SCNPhysicsBodyType.Static, SCNPhysicsShape.Create (path.Geometry, options));
path.PhysicsBody.CategoryBitMask = GameCollisionCategory.Ground;
}
}
}
void SetupCollisionNodes (SCNNode node)
{
if (node.Geometry != null) {
Console.WriteLine (node.Name);
node.PhysicsBody = SCNPhysicsBody.CreateStaticBody ();
node.PhysicsBody.CategoryBitMask = (nuint)(int)Bitmask.Collision;
var options = new SCNPhysicsShapeOptions {
ShapeType = SCNPhysicsShapeType.ConcavePolyhedron
};
node.PhysicsBody.PhysicsShape = SCNPhysicsShape.Create (node, options);
// Get grass area to play the right sound steps
if (node.Geometry.FirstMaterial.Name == "grass-area") {
if (grassArea != null)
node.Geometry.FirstMaterial = grassArea;
else
grassArea = node.Geometry.FirstMaterial;
}
// Get the water area
if (node.Geometry.FirstMaterial.Name == "water")
waterArea = node.Geometry.FirstMaterial;
// Temporary workaround because concave shape created from geometry instead of node fails
SCNNode child = SCNNode.Create ();
node.AddChildNode (child);
child.Hidden = true;
child.Geometry = node.Geometry;
node.Geometry = null;
node.Hidden = false;
if (node.Name == "water")
node.PhysicsBody.CategoryBitMask = (nuint)(int)Bitmask.Water;
}
foreach (SCNNode child in node.ChildNodes) {
if (!child.Hidden)
SetupCollisionNodes (child);
}
}
