Gravity

if(key_space)
{
c_move(my, vector(0 ,0,15*time_step), nullvector,GLIDE);
else
c_move(my, vector(0,0,-15*time_step), nullvector,GLIDE;
}

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

#define STATE     skill1
#define ANIMATION skill2
function main()
{
	level_load("Puschel.wmb"); 	
}

function camera_follow(ENTITY* ent)
{
	while(1) 
	{
		vec_set(camera.x,vector(-400,0,300));  // camera position relative to the player      
		vec_rotate(camera.x,ent.pan); // rotate the camera position with the player
		vec_add(camera.x,ent.x);      // add player position
		vec_set(camera.pan,vector(ent.pan,-20,0)); // look in player direction, slighty down      
		wait(1);
	}
}

action puschel()
{
	camera_follow(me);
	
	var speed_down = 0;   // downward speed by gravity
	VECTOR vFeet;
	vec_for_min(vFeet,me); // vFeet.z = distance from player origin to lowest vertex
	my.STATE = 1;
	
	while (1)
	{
	
// state 1: walking ////////////////////////////////////////////
		if (my.STATE == 1)
		{
				if(key_space)
		{
			c_move(my, vector(0 ,0,15*time_step), nullvector,GLIDE); //jump upwards
			
			}
		}
		}
		
// determine the ground distance by a downwards trace
      var dist_down; 
      if (c_trace(my.x,vector(my.x,my.y,my.z-5000),IGNORE_ME | IGNORE_PASSABLE | USE_BOX) > 0)
         dist_down = my.z + vFeet.z - target.z; // get distance between player's feet and the ground
      else
         dist_down = 0;
		// apply gravity when the player is in the air
      if (dist_down > 0)  // above floor, fall down with increasing speed
         dist_down = clamp(dist_down,0,accelerate(speed_down,5,0.1));
      else                // on or below floor, set downward speed to zero
         speed_down = 0;
// rotate the entity with the arrow keys     
			my.pan += (key_cul-key_cur)*8*time_step;   

// move the entity forward/backward with the arrow keys
			var distance = (key_cuu-key_cud)*8*time_step;
			c_move(me, vector(distance,0,0), nullvector,GLIDE);
					
						wait(1);
				}
			}
	}

if (my.STATE == 1)
{
if(key_space)
{
c_move(my, vector(0 ,0,15*time_step), nullvector,GLIDE); //jump upwards

}
}
}

if(key_space)
				{
					c_move(my, vector(0 ,0,15*time_step), nullvector,GLIDE); //jump upwards
				}
			else
				{
					c_move(my, vector(0 ,0,-15*time_step), nullvector,GLIDE; //fall
				}