Lite-C Workshop Tutoral #22 and 23 (Bones) is Broken.

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

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var walk_speed;
var turn_speed;

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function bones_test()
{
	my.pan -= 180; // face the player
	while(1)
  	{
  		ent_animate(my, NULL, 0, 0); // reset all the animations
  		walk_speed += 1.5 * time_step; // increase walk_speed; 1.5 sets the speed
  		ent_animate(my, "walk", walk_speed, ANM_CYCLE); // animate the model (use "walk")
		if (key_space && (turn_speed < 100)) // space was pressed?
  			turn_speed += 10 * time_step; // then increase turn_speed
		if (!key_space && (turn_speed > 0)) // space isn't pressed?
  			turn_speed -= 10 * time_step; // then decrease turn_speed
  		if (turn_speed > 0) // got to turn?
  			ent_animate(my, "turn", turn_speed, ANM_ADD); // animate the model (use "turn")
   	wait(1);
  	}
}

function main()
{
	level_load ("");	// load an empty level
	wait(2); // wait until the level is loaded
	// and then now create the robot model at x = 400, y = 0, z = -50 quants
	ent_create("robot.mdl", vector(400, 0, -50), bones_test); 
}