Cannot access raycast dictionary

Nilhope

P.S i am sorry it send accidentally while i am still writing, here is the full discussion

Greeting mate, I am working on a RTS camera script. I learned that i have to raycast from camera in order to project the mouse position to an collision shape. I made the casting successfully, however, I cannot print out the position element that is returned from dictionary.

Here is my code

if (Input.IsActionJustPressed("Move")) {
	MousePos = GetViewport().GetMousePosition();
	
	Vector3 startPt = viewPlane.ProjectRayOrigin(MousePos);
	Vector3 endPt = startPt + viewPlane.ProjectRayNormal(MousePos) * rayLength;
	
	var state = GetWorld().DirectSpaceState;
	var result = state.IntersectRay(startPt, endPt);
	GD.Print(result);  // I can print this one, the whole dictionary

	if (result.Contains("Position")&&result.Count!=0)
	{
 		GD.Print(result.Get["position"]);  // I can never print this even if result is exist
	}
}

In this code, i can print out the whole "result", which is the whole dictionary with no problem, however, i can't print the "position" element in result, which indeed exist in the result. Unfortunately, it is what godot doc told to extract the element, do you guys have clues, thank you

Here is the output if i print out the whole "result" {collider:[RigidBody:1240], collider_id:1240, normal:(0, 1, -0), position:(1.094041, 1.000003, 0.587834), rid:[RID], shape:0}

which have a positino element indeed, however, i can't print out the element alone with the guidance provided by documents

godot doc on raycasting https://docs.godotengine.org/en/stable/tutorials/physics/ray-casting.html

xyz

In line 11 you should probably test for "position" key, not "Position" (with uppercase P).

Also, isn't the proper method to test key existence ContainsKey() ?

TwistedTwigleg

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TwistedTwigleg

@xyz said: In line 11 you should probably test for "position" key, not "Position" (with uppercase P).

Also, isn't the proper method to test key existence ContainsKey() ?

I think in the C# API it's Contains for checking the existence of a key, as it's a custom data type. I do think it's ContainsKey for normal C# dictionaries though.

xyz

@TwistedTwigleg said: I think in the C# API it's Contains for checking the existence of a key, as it's a custom data type. I do think it's ContainsKey for normal C# dictionaries though.

Right. Haven't used C# with Godot so I wrongly assumed it's a regular dictionary.

TwistedTwigleg

@xyz said:

@TwistedTwigleg said: I think in the C# API it's Contains for checking the existence of a key, as it's a custom data type. I do think it's ContainsKey for normal C# dictionaries though.

Right. Haven't used C# with Godot so I wrongly assumed it's a regular dictionary.

It's confusing even if you are aware of it being a custom data type, as when you start to write Dictionary in code, intellisense gets confused on which to use. I've found that you either have to define it manually as a Godot dictionary (Godot.Collections.Dictionary I think) or remove using Godot and only import what you need so intellisense works correctly.