Hello!I got a problem...I try to make my character walking up the stairs but only on the stairs,so if it meets a mountain or something like it just can't climb it...Can anyone help?
Thanks in advance!

i have used move_min_z = 0.4; and now my character walks up to the stairs but now i got another problem...as i want to go down my character starts walking forward in the air...how can i fix that?

and as i set something like gravity,it wont climb the stairs so i need to tell the engine if my character doesen't colides with anything it falls.How can i do that?

Ok after a long thinking i managed to do it...it looks like this:
action walking_guard()
{
c_setminmax(my);
guard = me;
while (1)
{
set(me,FAT);
set(me,NARROW);
player = me;
camera.x = player.x - 100 * cos(player.pan);
camera.y = player.y - 100 * sin(player.pan);
camera.pan = player.pan; // the camera and the player have the same pan angle
camera.z = player.z + 70; // place the camera above the player, play with this value
camera.tilt = -25;
if (key_w)
ent_animate(my,"walk",walk_percentage, ANM_CYCLE); // "walk" animation loop
walk_percentage += 3 * time_step; // 3 = animation speed for "walk"
if (key_w)
c_move (my, vector(3.5 * time_step, 0, 0), nullvector, GLIDE);
if (key_w)
move_min_z = 0.4 * time_step * 60;
if (key_s)
ent_animate(my,"walk",walk_percentage2, ANM_CYCLE); // "walk" animation loop
walk_percentage2 += 3 * time_step; // 3 = animation speed for "walk"
if (key_s)
c_move (my, vector(-2 * time_step, 0, 0), nullvector, GLIDE);
if (key_a) me.pan += 5 * time_step;
if (key_d) me.pan -=5 * time_step;
if (key_w && key_shiftl)
ent_animate(my,"run",run_percentage, ANM_CYCLE); // "walk" animation loop
run_percentage += 7 * time_step; // 3 = animation speed for "walk"
if (key_d && key_w)
ent_animate(my,"walk",walk_percentage, ANM_CYCLE); // "walk" animation loop
walk_percentage += 0 * time_step; // 3 = animation speed for "walk"
if (key_a && key_w)
ent_animate(my,"walk",walk_percentage, ANM_CYCLE); // "walk" animation loop
walk_percentage += 0 * time_step; // 3 = animation speed for "walk"
if (key_shiftl && key_w)
c_move (my, vector(7 * time_step, 0, 0), nullvector, GLIDE);
if (key_shiftl && key_w && key_d)
ent_animate(my,"run",run_percentage, ANM_CYCLE); // "walk" animation loop
run_percentage += 0 * time_step; // 3 = animation speed for "walk"
if (key_shiftl && key_w && key_a)
ent_animate(my,"run",run_percentage, ANM_CYCLE); // "walk" animation loop
run_percentage += 0 * time_step; // 3 = animation speed for "walk"
if (key_any == 0)
ent_animate(my,"stand",stand_percentage, ANM_CYCLE); // "walk" animation loop
stand_percentage += 4 * time_step; // 3 = animation speed for "walk"
if (key_any == 0)
c_move (my, vector(0 , 0, -25 * time_step), nullvector, 0);
if (key_any == 1)
c_move (my, vector(0 , 0, -35 * time_step), nullvector, 0);
wait(1);
}
}