add steam module

examples/steam_example.js

@@ -0,0 +1,187 @@
+// Steam Integration Example
+// This example shows how to use Steam achievements and stats
+
+var steam = use("steam");
+
+// Achievement names (these should match your Steam app configuration)
+var ACHIEVEMENTS = {
+  FIRST_WIN: "ACH_FIRST_WIN",
+  PLAY_10_GAMES: "ACH_PLAY_10_GAMES",
+  HIGH_SCORE: "ACH_HIGH_SCORE_1000"
+};
+
+// Stat names
+var STATS = {
+  GAMES_PLAYED: "stat_games_played",
+  TOTAL_SCORE: "stat_total_score",
+  PLAY_TIME: "stat_play_time"
+};
+
+var steam_available = false;
+var stats_loaded = false;
+
+// Initialize Steam
+function init_steam() {
+  if (!steam) {
+    console.log("Steam module not available");
+    return false;
+  }
+  
+  console.log("Initializing Steam...");
+  steam_available = steam.steam_init();
+  
+  if (steam_available) {
+    console.log("Steam initialized successfully");
+    
+    // Request current stats/achievements
+    if (steam.stats.stats_request()) {
+      console.log("Stats requested");
+      stats_loaded = true;
+    }
+  } else {
+    console.log("Failed to initialize Steam");
+  }
+  
+  return steam_available;
+}
+
+// Update Steam (call this regularly, e.g., once per frame)
+function update_steam() {
+  if (steam_available) {
+    steam.steam_run_callbacks();
+  }
+}
+
+// Unlock an achievement
+function unlock_achievement(achievement_name) {
+  if (!steam_available || !stats_loaded) return false;
+  
+  // Check if already unlocked
+  var unlocked = steam.achievement.achievement_get(achievement_name);
+  if (unlocked) {
+    console.log("Achievement already unlocked:", achievement_name);
+    return true;
+  }
+  
+  // Unlock it
+  if (steam.achievement.achievement_set(achievement_name)) {
+    console.log("Achievement unlocked:", achievement_name);
+    
+    // Store stats to make it permanent
+    steam.stats.stats_store();
+    return true;
+  }
+  
+  return false;
+}
+
+// Update a stat
+function update_stat(stat_name, value, is_float) {
+  if (!steam_available || !stats_loaded) return false;
+  
+  var success;
+  if (is_float) {
+    success = steam.stats.stats_set_float(stat_name, value);
+  } else {
+    success = steam.stats.stats_set_int(stat_name, value);
+  }
+  
+  if (success) {
+    console.log("Stat updated:", stat_name, "=", value);
+    steam.stats.stats_store();
+  }
+  
+  return success;
+}
+
+// Get a stat value
+function get_stat(stat_name, is_float) {
+  if (!steam_available || !stats_loaded) return 0;
+  
+  if (is_float) {
+    return steam.stats.stats_get_float(stat_name) || 0;
+  } else {
+    return steam.stats.stats_get_int(stat_name) || 0;
+  }
+}
+
+// Example game logic
+var games_played = 0;
+var total_score = 0;
+var current_score = 0;
+
+function start_game() {
+  games_played = get_stat(STATS.GAMES_PLAYED, false);
+  total_score = get_stat(STATS.TOTAL_SCORE, false);
+  current_score = 0;
+  
+  console.log("Starting game #" + (games_played + 1));
+}
+
+function end_game(score) {
+  current_score = score;
+  games_played++;
+  total_score += score;
+  
+  // Update stats
+  update_stat(STATS.GAMES_PLAYED, games_played, false);
+  update_stat(STATS.TOTAL_SCORE, total_score, false);
+  
+  // Check for achievements
+  if (games_played === 1) {
+    unlock_achievement(ACHIEVEMENTS.FIRST_WIN);
+  }
+  
+  if (games_played >= 10) {
+    unlock_achievement(ACHIEVEMENTS.PLAY_10_GAMES);
+  }
+  
+  if (score >= 1000) {
+    unlock_achievement(ACHIEVEMENTS.HIGH_SCORE);
+  }
+}
+
+// Cloud save example
+function save_to_cloud(save_data) {
+  if (!steam_available) return false;
+  
+  var json_data = JSON.stringify(save_data);
+  return steam.cloud.cloud_write("savegame.json", json_data);
+}
+
+function load_from_cloud() {
+  if (!steam_available) return null;
+  
+  var data = steam.cloud.cloud_read("savegame.json");
+  if (data) {
+    // Convert ArrayBuffer to string
+    var decoder = new TextDecoder();
+    var json_str = decoder.decode(data);
+    return JSON.parse(json_str);
+  }
+  
+  return null;
+}
+
+// Cleanup
+function cleanup_steam() {
+  if (steam_available) {
+    steam.steam_shutdown();
+    console.log("Steam shut down");
+  }
+}
+
+// Export the API
+module.exports = {
+  init: init_steam,
+  update: update_steam,
+  cleanup: cleanup_steam,
+  unlock_achievement: unlock_achievement,
+  update_stat: update_stat,
+  get_stat: get_stat,
+  start_game: start_game,
+  end_game: end_game,
+  save_to_cloud: save_to_cloud,
+  load_from_cloud: load_from_cloud,
+  is_available: function() { return steam_available; }
+};