package maelstromphoenix.waih;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiScreen;
import net.minecraft.client.gui.ScaledResolution;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.VertexBuffer;
import net.minecraft.client.renderer.texture.TextureManager;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ResourceLocation;
import org.lwjgl.opengl.GL11;

/**
 * Created by Sven on 5/27/16.
 */
public class Overlay extends GuiScreen{

    public static Minecraft minecraft = Minecraft.getMinecraft();
    public static EntityPlayer player = minecraft.thePlayer;
    public static TextureManager textureManager = minecraft.renderEngine;
    public static Tessellator tessellator = Tessellator.getInstance();
    public static VertexBuffer vertexBuffer = tessellator.getBuffer();

    public void render(){
        ItemStack currentItem = player.inventory.getCurrentItem();
        if(currentItem == null)
            return;

        ScaledResolution scaledResolution = new ScaledResolution(minecraft);
        float width = scaledResolution.getScaledWidth();
        float height = scaledResolution.getScaledHeight();

        drawTexturedRectangle(width/4, height - height/4, 50, 50, 0, "rounded_rectangle.png");



    }

    public void drawTexturedRectangle(double x, double y, double width, double height, double zIndex, String texture){
        textureManager.bindTexture(new ResourceLocation(WAIH.MODID, texture));
        GlStateManager.enableAlpha();
        vertexBuffer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX_COLOR);
        vertexBuffer.pos(x - width/2, y - height/2, zIndex).tex(0, 0).color(1.0f, 1.0f, 1.0f, 0.1f).endVertex();
        vertexBuffer.pos(x - width/2, y + height/2, zIndex).tex(0, 1).color(1.0f, 1.0f, 1.0f, 0.1f).endVertex();
        vertexBuffer.pos(x + width/2, y + height/2, zIndex).tex(1, 1).color(1.0f, 1.0f, 1.0f, 0.1f).endVertex();
        vertexBuffer.pos(x + width/2, y - height/2, zIndex).tex(1, 0).color(1.0f, 1.0f, 1.0f, 0.1f).endVertex();
        tessellator.draw();
        GlStateManager.disableAlpha();
    }

}