input-patterns

Input Patterns

Godot InputMap Action Configuration

# Define input actions programmatically (useful for testing/CI or runtime setup)
# Normally done in Project Settings > InputMap, but here for reference:

func _setup_default_bindings() -> void:
    # Movement actions
    _add_action_with_keys(&"move_forward", KEY_W, JOY_BUTTON_INVALID, -1, JOY_AXIS_LEFT_Y)
    _add_action_with_keys(&"move_back",    KEY_S, JOY_BUTTON_INVALID,  1, JOY_AXIS_LEFT_Y)
    _add_action_with_keys(&"move_left",    KEY_A, JOY_BUTTON_INVALID, -1, JOY_AXIS_LEFT_X)
    _add_action_with_keys(&"move_right",   KEY_D, JOY_BUTTON_INVALID,  1, JOY_AXIS_LEFT_X)
    _add_action_with_keys(&"jump",         KEY_SPACE, JOY_BUTTON_A, 0.0, -1)
    _add_action_with_keys(&"interact",     KEY_E, JOY_BUTTON_X, 0.0, -1)

func _add_action_with_keys(
    action: StringName,
    key: Key,
    joy_button: JoyButton,
    axis_value: float = 0.0,
    joy_axis: JoyAxis = JOY_AXIS_INVALID
) -> void:
    if not InputMap.has_action(action):
        InputMap.add_action(action, 0.15)  # 0.15 = deadzone for this action

    if key != KEY_NONE:
        var key_event := InputEventKey.new()
        key_event.keycode = key
        InputMap.action_add_event(action, key_event)

    if joy_button != JOY_BUTTON_INVALID:
        var button_event := InputEventJoypadButton.new()
        button_event.button_index = joy_button
        InputMap.action_add_event(action, button_event)

Scaled Radial Deadzone

# Correctly apply radial deadzone with remapping
class_name InputDeadzone

static func apply_radial(raw: Vector2, inner: float = 0.15, outer: float = 0.95) -> Vector2:
    var magnitude := raw.length()

    if magnitude < inner:
        return Vector2.ZERO

    if magnitude > outer:
        return raw.normalized()

    # Remap [inner, outer] -> [0, 1] for smooth transition
    var remapped := (magnitude - inner) / (outer - inner)
    return raw.normalized() * remapped

# Usage in character controller:
func _physics_process(_delta: float) -> void:
    var raw := Input.get_vector(&"move_left", &"move_right", &"move_forward", &"move_back")
    var input := InputDeadzone.apply_radial(raw)
    # input is now clean with no dead zone artifact