package TecknixFileBase;

import net.minecraft.client.*;
import com.google.common.collect.*;
import com.tecknix.client.hud.mod.*;
import com.tecknix.client.hud.*;
import com.tecknix.client.Event.impl.*;
import net.minecraft.client.gui.*;
import java.util.*;
import com.tecknix.client.Event.*;

public class HUDManager
{
    private static HUDManager instance;
    private static Set<IRenderer> registeredRenderers;
    private Set<IRenderer> unregRenderers;
    private Minecraft mc;
    
    static {
        HUDManager.instance = null;
        HUDManager.registeredRenderers = (Set<IRenderer>)Sets.newHashSet();
    }
    
    private HUDManager() {
        this.unregRenderers = (Set<IRenderer>)Sets.newHashSet();
        this.mc = Minecraft.getMinecraft();
    }
    
    public static HUDManager getInstance() {
        if (HUDManager.instance != null) {
            return HUDManager.instance;
        }
        EventManager.register(HUDManager.instance = new HUDManager());
        return HUDManager.instance;
    }
    
    public void register(final IRenderer... renderers) {
        for (final IRenderer render : renderers) {
            HUDManager.registeredRenderers.add(render);
        }
    }
    
    public void unregister(final IRenderer... renderers) {
        for (final IRenderer render : renderers) {
            HUDManager.registeredRenderers.remove(render);
            this.unregRenderers.add(render);
        }
    }
    
    public static void clear() {
        HUDManager.registeredRenderers.clear();
        clear();
        final HUDManager hudManager = getInstance();
        ModuleInstances.register(hudManager);
    }
    
    public Collection<IRenderer> getRegisteredRenderers() {
        return HUDManager.registeredRenderers;
    }
    
    public void openConfigScreen() {
        this.mc.displayGuiScreen(new BaseModScreen(this));
    }
    
    @EventTarget
    public void onRender(final RendererEvent e) {
        if (this.mc.currentScreen == null || this.mc.currentScreen instanceof GuiChat) {
            if (this.mc.gameSettings.showDebugInfo) {
                return;
            }
            for (final IRenderer renderer : HUDManager.registeredRenderers) {
                this.callRenderer(renderer);
            }
        }
    }
    
    private void callRenderer(final IRenderer renderer) {
        if (!renderer.isEnabled()) {
            return;
        }
        if (this.unregRenderers.contains(renderer)) {
            return;
        }
        ScreenPosition pos = renderer.load();
        if (pos == null) {
            pos = ScreenPosition.fromRelativePosition(0.5, 0.5);
        }
        renderer.render(pos);
    }
    
    public Set<IRenderer> getUnregisteredRenderers() {
        return this.unregRenderers;
    }
}