added sys digger

sys_digger/game.js

@@ -79,6 +79,7 @@ function topScore() {
 let score         = 0;
 let docks         = 0;
 let gameOver      = false;
+let gameStarted   = false;
 let incomingAtoms = [];
 let anchorPoints  = [];
 let particles     = [];
@@ -177,19 +178,26 @@ function submitScore() {
 function restartGame() {
     score = docks = 0;
     gameOver      = false;
+    gameStarted   = false;
     incomingAtoms = [];
     particles     = [];
     clickEffects  = [];
     lastSpawn     = 0;
     spawnInterval = SPAWN_INTERVAL_START;
     document.getElementById('score').textContent       = 'Score: 0';
-    document.getElementById('docks-count').textContent = '0 / 8 docks';
+    document.getElementById('docks-count').textContent = `0 / ${MAX_DOCKS} docks`;
     document.getElementById('name-form').style.display = 'flex';
     document.getElementById('overlay').classList.remove('active');
+    document.getElementById('intro').classList.remove('hidden');
     initAnchors();
     updateCystinstein();
 }
 
+function startGame() {
+    gameStarted = true;
+    document.getElementById('intro').classList.add('hidden');
+}
+
 function updateHudBest(best) {
     document.getElementById('highscore').textContent = best !== null ? `Best: ${best}` : 'Best: —';
 }
@@ -203,7 +211,7 @@ document.getElementById('player-name').addEventListener('keydown', e => {
 function gameLoop(ts) {
     drawBackground();
 
-    if (!gameOver && ts - lastSpawn > spawnInterval) {
+    if (gameStarted && !gameOver && ts - lastSpawn > spawnInterval) {
         spawnAtom();
         lastSpawn     = ts;
         spawnInterval = Math.max(SPAWN_INTERVAL_MIN, spawnInterval - SPAWN_DIFFICULTY_STEP);
@@ -221,6 +229,9 @@ function gameLoop(ts) {
 }
 
 // ─── Boot ────────────────────────────────────────────────────────────────────
+// Fill dynamic value in intro text
+document.getElementById('intro').innerHTML =
+    document.getElementById('intro').innerHTML.replace('${MAX_DOCKS}', MAX_DOCKS);
 updateHudBest(topScore());
 initAnchors();
 updateCystinstein();