use med to animate the modle, then make a script for your game either at the end of the function main, or, inside of the player script...
code:
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while(mouse_left == 1){wait(1);
ent_cycle("frame", my.skill50);
my.skill50 += 5 * time;
my.skill50 %= 100;
}
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frame is the name fo the frame your animating.
have fun, and good luck.
Link.