are you useing the templets ? if so i believe this feature is built in already
but i dont use them so cant say for sure, if your not useing templets , it is also easy to code it yourself
bmap sight1_bmp = <somebmp.bmp>;
bmap sight2_bmp = <somebmp2.bmp>; //use for when over enemy
mouse_mode=1;
//put a while loop in your function main to store mouse pos
give your enemys a skill in this case skill17 and a value of 2 "my.skill17=2;"
then the if statment in the while loop checks to see if the mouse pointer is
touching an enemy , if so it changes the image
while(1)
{
MOUSE_POS.x = screen_size.x/2;
MOUSE_POS.y = screen_size.y/2;
mouse_spot.x=bmap_width(sight1_bmp)/2;
mouse_spot.y=bmap_height(sight1_bmp)/2;
mouse_map=sight1_bmp;
if(mouse_ent!=null)
{
if(mouse_ent.skill17==2){mouse_map=sight2_bmp;wait(20);}
else{mouse_map=sight1_bmp;}
}
wait(1);
}
hope this helps