GuiEngineeringTable.java

package eiteam.esteemedinnovation.engineeringtable;

import eiteam.esteemedinnovation.api.Constants;
import eiteam.esteemedinnovation.api.Engineerable;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import org.apache.commons.lang3.tuple.Pair;
import org.lwjgl.opengl.GL11;

@SideOnly(Side.CLIENT)
public class GuiEngineeringTable extends GuiContainer {
    private TileEntityEngineeringTable tileEntity;

    public GuiEngineeringTable(InventoryPlayer inv, TileEntityEngineeringTable tileEntity) {
        super(new ContainerEngineeringTable(inv, tileEntity));
        this.tileEntity = tileEntity;
    }

    @Override
    protected void drawGuiContainerForegroundLayer(int mouseX, int mouseY) {}

    @Override
    protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY) {
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        mc.getTextureManager().bindTexture(Constants.ENG_GUI_TEXTURES);
        int k = (width - xSize) / 2;
        int l = (height - ySize) / 2;
        GL11.glEnable(3042);
        drawTexturedModalRect(k, l, 0, 0, xSize, ySize);

        if (tileEntity.getStackInSlot(0) != null) {
            if (tileEntity.getStackInSlot(0).getItem() instanceof Engineerable) {
                Engineerable item = (Engineerable) tileEntity.getStackInSlot(0).getItem();
                item.drawBackground(this, 0, k + 52, l + 8);

                int i = 0;
                for (Pair<Integer, Integer> pair : item.engineerCoordinates()) {
                    int x = pair.getLeft();
                    int y = pair.getRight();
                    item.drawSlot(this, i, k + x + 52, l + y + 8);
                    i++;
                }
            }
        }
    }
}