Делала игру на RPG maker, отрисовывая все вручную, нужны советы

/////////////////////////////////////////////
// clock.c - analog clock panel example
// requires WINDOWS VISTA or above
// (c) jcl / oP group 2009
/////////////////////////////////////////////
#include <default.c>
#include <keys.c>
#include <bmap.c>
 
var hours;
 
////////////////////////////////////////////////////////////
#define COLOR_HAND vector(255,220,220)
#define COLOR_BODY vector(20,0,0) // dark blue
 
function main()
{
   vec_set(screen_size,vector(400,400,0));
   vec_set(screen_color,COLOR_BODY);
   if (sys_winversion >= 6)
      video_alpha = 85; // transparency works under Vista only
   wait(1); // wait until the engine window is opened
 
// place the clock in the upper left corner  
   video_window(vector(6,6,0),vector(200,200,0),2,0);
   PANEL* clock = pan_create(NULL,0);
   set(clock,SHOW);
// make the clock draggable with the mouse
  on_mouse_left = mouse_drag;
 
   BMAP* hours_hand = bmap_fill(bmap_createblack(140,8,32),COLOR_HAND,100);
   bmap_drawborder(hours_hand,COLOR_HAND,60);
   pan_setneedle(clock,0,screen_size.x/2,screen_size.y/2,
     hours_hand, 10,4,90,12,0,hours);
   
   BMAP* minutes_hand = bmap_fill(bmap_createblack(180,6,32),COLOR_HAND,100);
   bmap_drawborder(minutes_hand,COLOR_HAND,60);
   pan_setneedle(clock,0,screen_size.x/2,screen_size.y/2,
     minutes_hand,10,3,90,60,0,sys_minutes);
   
   BMAP* seconds_hand = bmap_fill(bmap_createblack(190,5,32),COLOR_RED,100);
   bmap_drawborder(seconds_hand,COLOR_RED,60);
   pan_setneedle(clock,0,screen_size.x/2,screen_size.y/2,
     seconds_hand,20,2,90,60,0,sys_seconds);
 
// add inbetween value for hour hand
   while(1) { 
      hours = sys_hours + sys_minutes/60;
      wait(1); 
   }
}