input_init(); // Initialize the input system

// Setup axis controls
input_set_buttons("forward", key_for_str("w"), key_for_str("s"));
input_set_axis("forward", key_force.y, 1, 0.01);

input_set_buttons("sideward", key_for_str("a"), key_for_str("d"));
input_set_axis("sideward", key_force.x, -1, 0.01); // Invert X-Axis to get proper left-right movement

// Three simple buttons for movement
input_set_button("jump", key_for_str("space"));
input_set_button("crouch", 29); // ctrl
input_set_button("sprint", key_for_str("shiftl"));

var inputValue = input_get("forward");

//complete nonsense order for demonstration, only
int CInput_Forward = 0;
int CInput_Jump = 1;
...
input_set_buttons(CInput_Forward, key_for_str("w"), key_for_str("s"));
...
var inputValue = input_get(CInput_Forward);