#include <default.c>

STRING* testLevel = "level0.wmb"; 
BMAP* crosshair = "crosshairsmall.pcx";
VECTOR* mouse_target; // mouse target position in 3D world

// Get the target vector 

function get_target()
{
	my.push = 2;
	set(me,INVISIBLE);
	VECTOR* vecFrom;
	VECTOR* vecTo;
	vec_zero(vecFrom);
	vec_zero(vecTo);

	while(1)
	{
		//store the mouse position to vecFrom
		vecFrom.x = mouse_pos.x + mouse_spot.x;
		vecFrom.y = mouse_pos.y + mouse_spot.y;
		vecFrom.z = 1;//close point
		vec_set(vecTo,vecFrom); //set the vecTo same as vecFrom
		vec_for_screen(vecFrom,camera); //world position of mouse position
		vecTo.z = 5000;//vecTo 10000 away from camera
		vec_for_screen(vecTo,camera);//far point
		c_trace(vecFrom, vecTo, IGNORE_PASSABLE|IGNORE_PUSH);//trace a line between the two points
		vec_set(mouse_target,target); //put the c_trace target vector to mouse_target
		wait(1);
	}
}


function main()
{
	level_load(testLevel);
	wait(2); // wait until the level is loaded

	vec_zero(mouse_target);
	mouse_range = 3000; //mouse range from camera
	mouse_mode = 1; //make cursor visible and moving
	mouse_pointer = 0;
	mouse_map = crosshair; //mouse bmap
	mouse_spot.x = bmap_width(crosshair)/2; // hot spot in the bmap center
	mouse_spot.y = bmap_height(crosshair)/2;
	wait(1);
	video_switch(6,0,2);

	ent_create("crosshairsmall.pcx", nullvector, get_target);
}