Input

Bind named actions to any mix of keys, pointer and gamepad, then ask about actions, not devices.

import { Input } from "@debuffjp/input";

const input = new Input(game, {
  bindings: {
    left: ["ArrowLeft", "KeyA", "PadLeft", "PadStickLeft"],
    right: ["ArrowRight", "KeyD", "PadRight", "PadStickRight"],
    jump: ["Space", "PadA", "Pointer"],
  },
});

// in update(dt)
player.vx = input.axis("left", "right") * speed;
if (input.pressed("jump")) jump();

• down(action): held now
• pressed(action) / released(action): changed this step. Taps shorter than a frame are never missed.
• axis(negative, positive): −1, 0 or 1

Binding names

Source	Names
Keyboard	KeyboardEvent.code values: Space, KeyZ, ArrowUp… These are layout-independent
Pointer	Pointer (mouse button, touch or pen)
Gamepad buttons	PadA PadB PadX PadY PadL1 PadR1 PadL2 PadR2 PadSelect PadStart PadL3 PadR3 PadUp PadDown PadLeft PadRight
Left stick	PadStickUp PadStickDown PadStickLeft PadStickRight

input.pointer gives the primary pointer's logical x/y and every active touch in touches.