src/main/java/com/legacy/aether/client/gui/GuiTreasureChest.java

package com.legacy.aether.client.gui;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.ContainerChest;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import com.legacy.aether.common.tile_entities.TileEntityTreasureChest;

@SideOnly(Side.CLIENT)
public class GuiTreasureChest extends GuiContainer
{
    private static final ResourceLocation CHEST_GUI_TEXTURE = new ResourceLocation("textures/gui/container/generic_54.png");

    private final int inventoryRows;

    public GuiTreasureChest(InventoryPlayer playerInventory, TileEntityTreasureChest chestInventory)
    {
        super(new ContainerChest(playerInventory, chestInventory, Minecraft.getMinecraft().thePlayer));

        this.allowUserInput = false;

        this.inventoryRows = chestInventory.getSizeInventory() / 9;

        this.ySize = 114 + this.inventoryRows * 18;
    }

    /**
     * Draw the foreground layer for the GuiContainer (everything in front of the items)
     */
    protected void drawGuiContainerForegroundLayer(int mouseX, int mouseY)
    {
        this.fontRendererObj.drawString("Treasure Chest", 8, 6, 4210752);
    }

    /**
     * Draws the background layer of this container (behind the items).
     */
    protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY)
    {
        GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
        this.mc.getTextureManager().bindTexture(CHEST_GUI_TEXTURE);
        int i = (this.width - this.xSize) / 2;
        int j = (this.height - this.ySize) / 2;
        this.drawTexturedModalRect(i, j, 0, 0, this.xSize, this.inventoryRows * 18 + 17);
        this.drawTexturedModalRect(i, j + this.inventoryRows * 18 + 17, 0, 126, this.xSize, 96);
    }
}