'use strict';

// ─── Canvas ──────────────────────────────────────────────────────────────────
const canvas = document.getElementById('gameCanvas');
const ctx    = canvas.getContext('2d');
const W = canvas.width;
const H = canvas.height;

// ─── Physics ─────────────────────────────────────────────────────────────────
const GRAVITY       = 0.55;
const MAX_FALL      = 16;
const JUMP_POW      = -12.5;
const WALK_SPD      = 4;
const STOMP_BOUNCE  = -11;   // vy after successful stomp

// ─── Gameplay ────────────────────────────────────────────────────────────────
const ATTACK_FRAMES = 22;
const INVINC_FRAMES = 100;
const WORLD_H       = 600;
const COMBO_TIMEOUT = 150;   // frames before combo resets
const MAX_COMBO_MULT = 8;    // maximum score multiplier