var selected_points = [];
var selected_lines = [];

var helpmsg = //"3D drawing tool\n\n" +
              "Select     Left Click\n" +
		      "Rotate     Right Click\n" +
		      "Move       wasd, qe\n" +
		      "Copy       Space\n" +
		      "Delete     x\n" +
		      "\n" +
		      "Click the red dot to create a point\n" +
			  "Spam a motion key to increase speed\n" +
			  "Drag between points to connect them\n";
              "Rotate     Right Click\n" +
              "Move       wasd, qe\n" +
              "Copy       Space\n" +
              "Delete     x\n" +
              "\n" +
              "Click the red dot to create a point\n" +
              "Spam a motion key to increase speed\n" +
              "Drag between points to connect them\n";
	          
			  
var msg = helpmsg;


var view_transform =
    [[1, 0, 0],
     [0, 1, 0],
     [0, 0, 1]];
            [[1, 0, 0],
             [0, 1, 0],
             [0, 0, 1]];


var key_state = {};
var key_state_augmentation_timeout = 150; // the permissible time in milliseconds since the last key event to still allow the key state to augment instead of clearing.

		if(selected_points.length && !getKeyState(1002)){  // move selection if exists
			for(var i = 0; i < selected_points.length; ++i){
				var pt = points[selected_points[i]];
				vector_add(pt, delta_position, pt); }}
		
		else{
			moveCamera(delta_position, false); }
      
        if(delta_horizontal_angle) rotateHorizontal(delta_horizontal_angle);
        if(delta_vertical_angle) rotateVertical(delta_vertical_angle);
			
			
		if(!selected_points.length){
			if(delta_horizontal_angle) rotateHorizontal(delta_horizontal_angle);
			if(delta_vertical_angle) rotateVertical(delta_vertical_angle); }
			
		else{
            var rotation_transform;
            if(selection_rotation_axis){  // 
                
            }}}
        
       
        //  overwrite point projections
        //  TODO this may not be perfect if points are deleted etc.        
        point_projections.length = 0;
        for(var i = 0; i < points.length; ++i){
            point_projections[i] = project(canvas, points[i], view_transform, origin); }