GuiPoweredMachineBase.java

package crazypants.enderio.machine.gui;

import java.awt.Rectangle;
import java.util.List;

import net.minecraft.inventory.Container;
import net.minecraft.util.StatCollector;

import org.lwjgl.opengl.GL11;

import com.enderio.core.client.gui.widget.GuiToolTip;

import crazypants.enderio.machine.AbstractPoweredMachineEntity;
import crazypants.enderio.machine.power.PowerDisplayUtil;

public abstract class GuiPoweredMachineBase<T extends AbstractPoweredMachineEntity> extends GuiMachineBase<T> {

  protected static final int POWER_Y = 14;
  protected final int POWER_X = 15;
  protected static final int POWER_WIDTH = 10;
  protected static final int POWER_HEIGHT = 42;
  protected static final int BOTTOM_POWER_Y = POWER_Y + POWER_HEIGHT;

  public GuiPoweredMachineBase(T machine, Container container, String... guiTexture) {
    super(machine, container, guiTexture);
    if(renderPowerBar()) {
      addToolTip(new GuiToolTip(new Rectangle(getPowerX(), getPowerY(), getPowerWidth(), getPowerHeight()), "") {

        @Override
        protected void updateText() {
          text.clear();
          if(renderPowerBar()) {
            updatePowerBarTooltip(text);
          }
        }

      });
    }
  }

  protected String getPowerOutputLabel() {
    return StatCollector.translateToLocal("enderio.gui.max");
  }
  
  protected int getPowerOutputValue() {
    return getTileEntity().getPowerUsePerTick();
  }
  
  protected void updatePowerBarTooltip(List<String> text) {
    text.add(getPowerOutputLabel() + " " + PowerDisplayUtil.formatPower(getPowerOutputValue()) + " " + PowerDisplayUtil.abrevation()
        + PowerDisplayUtil.perTickStr());
    text.add(PowerDisplayUtil.formatStoredPower(getTileEntity().getEnergyStored(), getTileEntity().getMaxEnergyStored()));
  }

  public void renderPowerBar(int k, int l) {
    if(renderPowerBar()) {      
      int i1 = getTileEntity().getEnergyStoredScaled(getPowerHeight());      
      // x, y, u, v, width, height
      drawTexturedModalRect(k + getPowerX(), l + (getPowerY() + getPowerHeight()) - i1, getPowerU(), getPowerV(), getPowerWidth(), i1);
    }
  }

  protected int getPowerX() {
    return POWER_X;
  }

  protected int getPowerY() {
    return POWER_Y;
  }

  protected int getPowerWidth() {
    return POWER_WIDTH;
  }

  protected int getPowerHeight() {
    return POWER_HEIGHT;
  }

  @Override
  protected void drawGuiContainerBackgroundLayer(float par1, int par2, int par3) {
    GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);

    int k = (width - xSize) / 2;
    int l = (height - ySize) / 2;
    renderPowerBar(k, l);

    super.drawGuiContainerBackgroundLayer(par1, par2, par3);
  }

  protected int getPowerV() {
    return 31;
  }

  protected int getPowerU() {
    return 176;
  }

  protected boolean renderPowerBar() {
    return true;
  }

}