public void run()
    {
        running = true;
        try
        {
            startGame();
        }
        catch(Exception exception)
        {
            exception.printStackTrace();
            displayUnexpectedThrowable(new UnexpectedThrowable("Failed to start game", exception));
            return;
        }
        try
        {
            long l = System.currentTimeMillis();
            int i = 0;
            while(running && (mcApplet == null || mcApplet.isActive()))
            {
                AxisAlignedBB.clearBoundingBoxPool();
                Vec3D.initialize();
                if(mcCanvas == null && Display.isCloseRequested())
                {
                    shutdown();
                }
                if(isWorldLoaded && theWorld != null)
                {
                    float f = timer.renderPartialTicks;
                    timer.updateTimer();
                    timer.renderPartialTicks = f;
                } else
                {
                    timer.updateTimer();
                }
                long l1 = System.nanoTime();
                for(int j = 0; j < timer.elapsedTicks; j++)
                {
                    ticksRan++;
                    try
                    {
                        runTick();
                        continue;
                    }
                    catch(MinecraftException minecraftexception)
                    {
                        theWorld = null;
                    }
                    changeWorld1(null);
                    displayGuiScreen(new GuiConflictWarning());
                }

                long l2 = System.nanoTime() - l1;
                checkGLError("Pre render");
                sndManager.func_338_a(thePlayer, timer.renderPartialTicks);
                GL11.glEnable(3553 /*GL_TEXTURE_2D*/);
                if(theWorld != null && !theWorld.multiplayerWorld)
                {
                    theWorld.func_6465_g();
                }
                if(theWorld != null && theWorld.multiplayerWorld)
                {
                    theWorld.func_6465_g();
                }
                if(gameSettings.limitFramerate)
                {
                    Thread.sleep(5L);
                }
                if(!Keyboard.isKeyDown(65))
                {
                    Display.update();
                }
                if(!field_6307_v)
                {
                    if(playerController != null)
                    {
                        playerController.setPartialTime(timer.renderPartialTicks);
                    }
                    entityRenderer.func_4136_b(timer.renderPartialTicks);
                }
                if(!Display.isActive())
                {
                    if(fullscreen)
                    {
                        toggleFullscreen();
                    }
                    Thread.sleep(10L);
                }
                if(Keyboard.isKeyDown(61))
                {
                    displayDebugInfo(l2);
                } else
                {
                    prevFrameTime = System.nanoTime();
                }
                Thread.yield();
                if(Keyboard.isKeyDown(65))
                {
                    Display.update();
                }
                screenshotListener();
                if(mcCanvas != null && !fullscreen && (mcCanvas.getWidth() != displayWidth || mcCanvas.getHeight() != displayHeight))
                {
                    displayWidth = mcCanvas.getWidth();
                    displayHeight = mcCanvas.getHeight();
                    if(displayWidth <= 0)
                    {
                        displayWidth = 1;
                    }
                    if(displayHeight <= 0)
                    {
                        displayHeight = 1;
                    }
                    resize(displayWidth, displayHeight);
                }
                checkGLError("Post render");
                i++;
                isWorldLoaded = !isMultiplayerWorld() && currentScreen != null && currentScreen.doesGuiPauseGame();
                while(System.currentTimeMillis() >= l + 1000L)
                {
                    debug = (new StringBuilder()).append(i).append(" fps, ").append(WorldRenderer.chunksUpdated).append(" chunk updates").toString();
                    WorldRenderer.chunksUpdated = 0;
                    l += 1000L;
                    i = 0;
                }
            }
        }
        catch(MinecraftError minecrafterror) { }
        catch(Throwable throwable)
        {
            theWorld = null;
            throwable.printStackTrace();
            displayUnexpectedThrowable(new UnexpectedThrowable("Unexpected error", throwable));
        }
        finally { }
    }