#include <litec.h>
#include <d3d9.h>

#include <acknex.h>
#include <default.c>

#define PRAGMA_ZERO

BMAP* canvas;

var format; 
var pixel;
var coords_x = 0;
var coords_y = 0;

function snowing()
{
	while(1)
	{
		c_trace(vector(random(30)-15,random(30)-15, 100), vector(random(30)-15,random(30)-15, -100), IGNORE_PASSABLE | IGNORE_ME | SCAN_TEXTURE | ACTIVATE_SHOOT);
		wait(1);				
	}	
}

function snowEvent()
{
	coords_x = hit.u1;
	coords_y = hit.v1;
}


action get_snow()
{

	var coords_area = 4;
	var coords_cur_x = coords_x - coords_area;
	var coords_cur_y = coords_y - coords_area;
	set(my, POLYGON);
 	my.emask |= ENABLE_SHOOT;
  	my.event = snowEvent;
	while(1)
	{
			coords_cur_x = coords_x - coords_area*0.5;
			coords_cur_y = coords_y - coords_area*0.5;
			canvas = bmap_for_entity(my, 0);	//1 is the number of the skin
	
			format = bmap_lock(canvas, 0); // lock the canvas bitmap
			pixel = pixel_for_vec(vector(255,255,255), 100, format);
			pixel_to_bmap(canvas, coords_x, coords_y, pixel); // now write the pixel at the coords_x, coords_y position
			while(coords_cur_x <= (coords_x + coords_area))
			{
				if((coords_cur_x < canvas.width ) && (coords_cur_y < canvas.height))
				{
					if((coords_cur_x > 0) && (coords_cur_y > 0))
					{
						pixel_to_bmap(canvas,coords_cur_x, coords_cur_y,pixel);
					}
				}
				coords_cur_y += 1;
				if(coords_cur_y > (coords_y + coords_area))
				{
					coords_cur_x += 1;
					coords_cur_y = coords_y - coords_area;
				}
			}
			bmap_unlock(canvas); // unlock the bitmap now
			bmap_to_mipmap(canvas);
		wait(1);
	}
}

function main()
{
	level_load(NULL);
	camera.z = 30;
	camera.tilt = -90;
	ent_create("cube_black.mdl", vector(0,0,0), get_snow);
	snowing();
}

if((coords_cur_x < canvas.width ) && (coords_cur_y < canvas.height))
{
	if((coords_cur_x > 0) && (coords_cur_y > 0))
	{
[...]
	}
}