Fix: Godot Input Event Action Name Typo Silently Fails

Quick answer: Godot Input.is_action_pressed("Jump") always returning false despite the action being mapped? Misspelled or differently-cased action name — the API silently returns false for unknown actions.

A typo (‘Jump’ vs ‘jump’) makes the player unable to jump and nothing logs. The engine treats unknown actions as “not pressed” without complaint.

Centralize Action Names

# actions.gd
const JUMP = "jump"
const MOVE_LEFT = "move_left"

One source of truth. Refactors are search-and-replace. Typos at call sites become compile errors.

Startup Assert

for a in [Actions.JUMP, Actions.MOVE_LEFT]:
    assert(InputMap.has_action(a), "Missing action: " + a)

Fails fast if InputMap and your code drift. Catches deleted actions before they hit gameplay.

InputMap.has_action

For dynamic lookups, gate with InputMap.has_action before is_action_pressed. Returns boolean; lets you log or fall back.

Action Strength

For analog inputs, get_action_strength with a wrong name returns 0.0 silently — same trap as is_action_pressed.

Verifying

Typos cause assert failures at startup. Valid action names work everywhere. No silent “jump doesn’t work” bugs.

“Unknown action names return false silently. Centralize constants and assert at startup.”

Treat action names like enum members in your project — bind them once, refer to them everywhere via the constant.