[Editor] Paste object on click place

[Владимир Побединский]

May be good idea to realize this: We copy object from scene (as Edit - Copy) and select Edit - Click to paste and where we are clicked - there object will be pasted. May be normal aligned.

[Paweł Mogiła]

Very good idea, I wanted to implement that but unfortunately Urho raycast doesn't return hit normal vector. This could be great way for rapid spawn of environment objects like bushes, or trees.

[Lasse Öörni]

Calculating normal from the mesh triangle that was hit should be doable. I think that is even what is preferable (instead of a smoothed normal.)

[Владимир Побединский]

Paweł Mogiła написал:

Very good idea, I wanted to implement that but unfortunately Urho raycast doesn't return hit normal vector. This could be great way for rapid spawn of environment objects like bushes, or trees.

If node contain CollisionShape, PhysicsWorld::RaycastSingle can return normal in PhysicsRaycastResult.

[Владимир Побединский]

I change some editor behavior. Paste on mouse cursor position in 3D.

Add this to EditorView.as

Vector3 GetMouse3DPosition()
{  
    IntVector2 pos = ui.cursorPosition;
    Ray cameraRay = camera.GetScreenRay(float(pos.x) / graphics.width, float(pos.y) / graphics.height);
    Vector3 res = cameraNode.position + cameraRay.direction * Vector3(0, 0, newNodeDistance);

    if (ui.HasModalElement())
        return res;

    if (IsGizmoSelected())
        return res;

    if (editorScene.physicsWorld != null)
    {
        if (!runUpdate)
            editorScene.physicsWorld.UpdateCollisions();

        PhysicsRaycastResult result = editorScene.physicsWorld.RaycastSingle(cameraRay, camera.farClip);
       
        if (result.body !is null)
            res = result.position;
    }
    else
    {
        if (editorScene.octree is null)
            return res;

        RayQueryResult result = editorScene.octree.RaycastSingle(cameraRay, RAY_TRIANGLE, camera.farClip,
            pickModeDrawableFlags[pickMode], 0x7fffffff);

        if (result.drawable !is null)
             res = cameraNode.position + cameraNode.worldRotation * Vector3(0, 0, result.distance);
    }

    return res;
}

Add this to EditorScene.as at line 492

newNode.position = GetMouse3DPosition();

I my scene with physics it work good. =)

[Chris Friesen]

I will try putting this in my resource browser work.  There is a drag n drop to create models/prefabs and this might essentially be better then what i have.

[Raster Ron]

Yes, this is nice code. Thanks for sharing.