Ok so im working on a gui to display power, but so far I have ran into a problem my power display shows the bar correctly when full but when its filling it displays top going to the bottom but I need to invert it how can I do this

Ok so im working on a gui to display power, but so far I have ran into a problem my power display shows the bar correctly when full but when its filling it displays top going to the bottom but I need to invert it how can I do this

 

Show the code please as our crystal balls are kinda not working.

Heres the badly laid out gui code I threw together in like 2 minutes at school

 

package com.linumhost.Gui;

import java.awt.Font;
import java.awt.font.FontRenderContext;
import java.awt.geom.AffineTransform;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.lwjgl.opengl.GL11;

import com.linumhost.Blocks.AirGenerator;
import com.linumhost.TileEntity.TileEntityAirGeneratorBlock;
import com.linumhost.lib.RefStrings;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.GuiScreen;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.util.ChatComponentText;
import net.minecraft.util.ResourceLocation;

public class AirGeneratorGui extends GuiScreen {

Minecraft mc = Minecraft.getMinecraft();

GuiButton testButton;

EntityPlayer player = mc.thePlayer;

TileEntityAirGeneratorBlock tile = new TileEntityAirGeneratorBlock();

String title = "Info Block";
AffineTransform affinetransform = new AffineTransform();     
FontRenderContext frc = new FontRenderContext(affinetransform,true,true); 
Font font = new Font("Tahoma", Font.PLAIN, 12);
int titleWidth = (int)(font.getStringBounds(title, frc).getWidth());
int titleheight = (int)(font.getStringBounds(title, frc).getHeight());

int tabWidth = 61 + 10;

int titleXPos = (tabWidth - titleWidth) / 2;

//int powerDisplayHeight = 100 / tile.getEnergyStored();

SimpleDateFormat sdf = new SimpleDateFormat("h:mm a");
String time = sdf.format(new Date());

public final int xPowerDisplay = 19;
public final int yPowerDisplay = 53;

public final int xSizeOfStorage = 13;
public final int ySizeOfStorage = 47;

public final int xSizeOfInside = 252;
public final int ySizeOfInside = 139;

public final int xSizeOfTexture = 256;
public final int ySizeOfTexture = 156;


public final int xSizeOfInterier = 226;
public final int ySizeOfInterier = 113;

public final int xSizeOfSideGap = 11;
public final int ySizeOfSideGap = 115;

public final int xSizeOfTopGap = 228;
public final int ySizeOfTopGap = 11;
public final int xSizeOfBottomGap = xSizeOfTopGap;
public final int ySizeOfBottomGap = ySizeOfTopGap;


@Override
public void drawScreen(int x, int y, float f){

	int xPos = (this.width - xSizeOfTexture) / 2;
	int yPos = (this.height - ySizeOfTexture) / 2;

	int levelPosX = (xSizeOfTexture) / 2;
	int levelPosY = (ySizeOfTexture) / 2;

	int xPowerDisplayPos = (this.width - 19) / 2;
	int yPowerDisplayPos = (this.height - 53) / 2;

	int bottom = (ySizeOfTexture - 20 - 2);

	GL11.glColor4f(1F, 1F, 1F, 1F);
	mc.renderEngine.bindTexture(new ResourceLocation(RefStrings.MODID, "/textures/gui/airGeneratorBg.png"));

	drawDefaultBackground();

	drawTexturedModalRect(xPos, yPos, 0, 0, xSizeOfTexture, ySizeOfTexture);

	GL11.glColor4f(1F, 1F, 1F, 1F);
	mc.renderEngine.bindTexture(new ResourceLocation(RefStrings.MODID, "/textures/gui/energyStorageBar.png"));

	drawTexturedModalRect(xPos + 137 - xSizeOfStorage, yPos + 63 , 0, 0, xSizeOfStorage, (tile.getEnergyStored()*ySizeOfStorage)/ tile.getMaxEnergyStored());

	//drawRect(xPos + 5, bottom + 40, 30, 100, 0x000000);
	//drawRect(xPos + 5, bottom + 40, 30, powerDisplayHeight, 0xd01414);

	fontRendererObj.drawString("Air Gen.", xPos + 10 + titleXPos, yPos + 4, 0x000000);

	fontRendererObj.drawString("Power: " + tile.storage + "/" + tile.getMaxEnergyStored(), xPos + xSizeOfSideGap + 5 , yPos + ySizeOfBottomGap + 100, 0x000000);	

	super.drawScreen(x, y, f);

}

public void initGui(){

	int xSize = 100;
	int ySize = 20;

	int xPos = (xSizeOfTexture) / 2;
	int yPos = (ySizeOfTexture) / 2;

	int bottom = (ySizeOfTexture - ySize - 2);

	buttonList.clear();

	super.initGui();
}

@Override
public boolean doesGuiPauseGame(){
	return false;
}

}

You should use constructor to get your tileentity because at the moment your code generates new tileentity everytime it runs. So yeah, make constructor.

Im sorry how would I achieve this.

TileEntityAirGeneratorBlock tile;

public AirGeneratorGui(TileEntityAirGeneratorBlock tile)
{
    this.tile = tile;
}

ahh I see

Ok but now back to the issue how can I invert the way it displays the texture

You need to do this:

scaleHeight = maxScaleHeight - (currFlux / (float) maxFlux * maxScaleHeight )

 

Here's an example of my generator GUI:

https://github.com/SanAndreasP/EnderStuffPlus/blob/master/java/de/sanandrew/mods/enderstuffp/client/gui/GuiOreGenerator.java#L57

I see your using the cofh api, how exactly could I use it im not sure on how to add apis yet

I see your using the cofh api, how exactly could I use it im not sure on how to add apis yet

 

The answer does not require the use of an API. Anyway if you want to have compatibiliy between your and some other guy's mod you must use API that you clarity in mcmod.info file.

Ok and another gui related issue, if I use a static variable it will update on the gui from the tile but if I use for example getEnergyStored() it just returns once