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Modification Help / Mouse position to world coords (in script)

« on: August 29, 2007, 03:32:17 PM »

I know this should be done in C++ but I'm wondering how to get the 3D world coordinates from the 2D mouse position.

here's what i have so far (which doesn't work very well):

Code: [Select]

// commandToServer('GetMouse3DPos', canvas.getCursorPos(), getRes());

function serverCmdGetMouse3DPos(%client, %clientMousePos, %clientRes) {

	%Pos2D = (firstWord(%clientRes) / 2) SPC (getWord(%clientRes, 1) / 2);

	%x = firstWord(%clientMousePos) - firstWord(%Pos2D);
	%y = getWord(%clientMousePos, 1) - getWord(%Pos2D, 1);
	// The cursor position is based off of the top-left corner of the screen
	// This makes x and y relative to the center of the screen

	%delta = "0" SPC (%x / 10) SPC (-%y / 10);
	// If you click above your player, for example, this will be about:
	// 0 0 1
	// The z value is how far above your player you clicked

	error(%delta);
	%Vec3D = VectorAdd(%client.player.getForwardVector(), %delta);
	%Vec3D = VectorAdd(%Vec3D, %client.player.getPosition());
	messageClient(%client, '', '3D position is: %1', %Vec3D);
}