EventRenderHud

package claygolem.events;

import java.text.DecimalFormat;

import net.minecraft.client.Minecraft;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.event.RenderGameOverlayEvent;
import net.minecraftforge.client.event.RenderGameOverlayEvent.ElementType;

import org.lwjgl.opengl.GL11;

import claygolem.client.gui.GuiScreenHud;
import claygolem.entities.boss.EntityBossPart;
import claygolem.util.ModConst;
import cpw.mods.fml.common.eventhandler.SubscribeEvent;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

@SideOnly(Side.CLIENT)
public class EventRenderHud extends GuiScreenHud {
    protected int waitTicks;

    private EntityLivingBase prevEntity = null;

    private static final ResourceLocation hudPlayerInfo = new ResourceLocation(ModConst.MODID, "textures/gui/hud_playerinfo.png");
    private static final ResourceLocation hudTargetInfo = new ResourceLocation(ModConst.MODID, "textures/gui/hud_targetinfo.png");

    public EventRenderHud(Minecraft mc) {
        super(mc);
    }

    @SubscribeEvent
    public void doRenderOverlay(RenderGameOverlayEvent event) {
        int centerX = (this.width - this.xSize) / 2;
        int centerY = (this.height - this.ySize) / 2;
        if(!mc.thePlayer.capabilities.isCreativeMode) {
            this.renderPlayerInfo(this.mc.thePlayer.getHealth());

            if(event.type.equals(ElementType.HEALTH) && event.isCancelable())
                event.setCanceled(true);
            if(event.type.equals(ElementType.EXPERIENCE) && event.isCancelable())
                event.setCanceled(true);
            if(event.type.equals(ElementType.FOOD) && event.isCancelable())
                event.setCanceled(true);
            if(waitTicks > 0) {
                Entity entity = this.getEntityMouseOver(mc, event.partialTicks);
                this.renderTargetHud(entity);
            }
            waitTicks--;
        }
    }

    public void renderPlayerInfo(float health) {
        DecimalFormat df = new DecimalFormat("#0.##");
        String currentHealth = df.format(health);
        GL11.glPushMatrix();
            GL11.glScalef(0.7f, 0.7f, 0.7f);
            this.bind(hudPlayerInfo);
            //main
            this.drawTexturedModalRect(0, 0, 0, 0, 207, 46);
            //health
            this.drawTexturedModalRect(38, 8, 0, 58, 162, 9);
            //energy
            this.drawTexturedModalRect(38, 21, 0, 79, 162, 9);
            //experience
            this.drawTexturedModalRect(38, 34, 0, 102, 162, 5);
            //player emblem
            this.drawTexturedModalRect(7, 11, 0, 119, 24, 24);

            this.drawCenteredString(this.mc.fontRenderer, currentHealth, 38 + (162 / 2), 9, 0xffffffff);
        GL11.glPopMatrix();

    }

    public void renderTargetHud(Entity entity) {
        //TODO draw textured rectangle for pointed entity
        this.renderPointedEntity(entity);
    }

    public void renderPointedEntity(Entity entity) {
        if(entity != null) {
            waitTicks = 1500;
            EntityLivingBase pointedEntity = null;
            if(entity instanceof EntityLivingBase)
                pointedEntity = (EntityLivingBase)entity;
            if(entity instanceof EntityBossPart)
                pointedEntity = ((EntityBossPart)entity).entityPartObj.getEntity();
            if(pointedEntity != null) {
                prevEntity = pointedEntity;
                this.renderEntityMouseOver(50, 50, 30 / pointedEntity.height, (float)(50 + 51) - 120, (float)(50 + 75 - 50) - 55, pointedEntity);
                //System.out.println(EntityList.getEntityString(pointedEntity));
            }
        }
        else {
            if(prevEntity != null)
                this.renderEntityMouseOver(50, 50, 30 / prevEntity.height, (float)(50 + 51) - 120, (float)(50 + 75 - 50) - 55, prevEntity);
        }
    }


}