/** thread's run() method that does all the work in the right order */
public void run() {
try {
if (log != null)
log.println(
"-------------------\ncartridge "
+ gwcfile.name
+ " started (openWIG r"
+ VERSION
+ ")\n-------------------");
prepareState();
if (doRestore) restoreGame();
else newGame();
loglevel = LOG_PROP;
ui.debugMsg("Starting game...\n");
ui.start();
player.refreshLocation();
cartridge.callEvent(doRestore ? "OnRestore" : "OnStart", null);
ui.refresh();
eventRunner.unpause();
mainloop();
} catch (IOException e) {
ui.showError("Could not load cartridge: " + e.getMessage());
} catch (Throwable t) {
stacktrace(t);
} finally {
ui.end();
}
}
/** creates a new global Engine instance */
public static Engine newInstance(
CartridgeFile cf, OutputStream log, UI ui, LocationService service) throws IOException {
ui.debugMsg("Creating engine...\n");
Engine.ui = ui;
Engine.gps = service;
instance = new Engine(cf, log);
return instance;
}
/** invokes creation of clean new game environment */
private void newGame() throws IOException {
// starting game normally
ui.debugMsg("Loading gwc...");
if (gwcfile == null) throw new IOException("invalid cartridge file");
ui.debugMsg("pre-setting properties...");
player.rawset("CompletionCode", gwcfile.code);
player.rawset("Name", gwcfile.member);
ui.debugMsg("loading code...");
byte[] lbc = gwcfile.getBytecode();
ui.debugMsg("parsing...");
LuaClosure closure =
LuaPrototype.loadByteCode(new ByteArrayInputStream(lbc), state.getEnvironment());
ui.debugMsg("calling...\n");
state.call(closure, null, null, null);
lbc = null;
closure = null;
}
/** prepares Lua state and some bookkeeping */
protected void prepareState() throws IOException {
ui.debugMsg("Creating state...\n");
state = new LuaState(System.out);
/*write("Registering base libs...\n");
BaseLib.register(state);
MathLib.register(state);
StringLib.register(state);
CoroutineLib.register(state);
OsLib.register(state);*/
ui.debugMsg("Building javafunc map...\n");
savegame.buildJavafuncMap(state.getEnvironment());
ui.debugMsg("Loading stdlib...");
InputStream stdlib = getClass().getResourceAsStream("/cz/matejcik/openwig/stdlib.lbc");
LuaClosure closure = LuaPrototype.loadByteCode(stdlib, state.getEnvironment());
ui.debugMsg("calling...\n");
state.call(closure, null, null, null);
stdlib.close();
stdlib = null;
ui.debugMsg("Registering WIG libs...\n");
WherigoLib.register(state);
ui.debugMsg("Building event queue...\n");
eventRunner = new BackgroundRunner(true);
eventRunner.setQueueListener(
new Runnable() {
public void run() {
ui.refresh();
}
});
}
/** invokes game restore */
private void restoreGame() throws IOException {
ui.debugMsg("Restoring saved state...");
cartridge = new Cartridge();
savegame.restore(state.getEnvironment());
}