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package gregtech.common.render;
import cpw.mods.fml.relauncher.SideOnly;
import gregtech.api.enums.ItemList;
import gregtech.common.items.GT_FluidDisplayItem;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.item.ItemStack;
import net.minecraft.util.IIcon;
import net.minecraftforge.client.IItemRenderer;
import net.minecraftforge.client.MinecraftForgeClient;
import org.lwjgl.opengl.GL11;
@SideOnly(cpw.mods.fml.relauncher.Side.CLIENT)
public class GT_FluidDisplayStackRenderer implements IItemRenderer {
public GT_FluidDisplayStackRenderer() {
MinecraftForgeClient.registerItemRenderer(ItemList.Display_Fluid.getItem(), this);
}
@Override
public boolean handleRenderType (ItemStack item, ItemRenderType type)
{
if(!item.hasTagCompound())
return false;
return type == ItemRenderType.INVENTORY;
}
@Override
public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper)
{
//not sure what this does.
return false;
}
@Override
public void renderItem (ItemRenderType type, ItemStack item, Object... data) {
if (item == null || item.getItem() == null || !(item.getItem() instanceof GT_FluidDisplayItem))
return;
OpenGlHelper.glBlendFunc(770, 771, 1, 0);
GL11.glEnable(GL11.GL_BLEND);
GL11.glEnable(GL11.GL_ALPHA_TEST);
IIcon icon = item.getItem().getIconFromDamage(item.getItemDamage());
Tessellator tess = Tessellator.instance;
tess.startDrawingQuads();
// draw a simple rectangle for the inventory icon
final float x_min = icon.getMinU();
final float x_max = icon.getMaxU();
final float y_min = icon.getMinV();
final float y_max = icon.getMaxV();
tess.addVertexWithUV( 0, 16, 0, x_min, y_max);
tess.addVertexWithUV(16, 16, 0, x_max, y_max);
tess.addVertexWithUV(16, 0, 0, x_max, y_min);
tess.addVertexWithUV( 0, 0, 0, x_min, y_min);
tess.draw();
if(item.getTagCompound() == null) {
GL11.glDisable(GL11.GL_BLEND);
GL11.glDisable(GL11.GL_ALPHA_TEST);
return;
}
// Render Fluid amount text
long fluidAmount = item.getTagCompound().getLong("mFluidDisplayAmount");
if (fluidAmount > 0L && !item.getTagCompound().getBoolean("mHideStackSize")) {
String amountString;
if (fluidAmount < 10000) {
amountString = "" + fluidAmount + "L";
} else {
int exp = (int) (Math.log(fluidAmount) / Math.log(1000));
double shortAmount = fluidAmount / Math.pow(1000, exp);
if ( shortAmount >= 100) {
amountString = String.format("%.0f%cL", shortAmount, "kMGTPE".charAt(exp - 1)); //heard it here first, PetaLiters
} else if ( shortAmount >= 10) {
amountString = String.format("%.1f%cL", shortAmount, "kMGTPE".charAt(exp - 1));
} else {
amountString = String.format("%.2f%cL", shortAmount, "kMGTPE".charAt(exp - 1));
}
}
FontRenderer fontRender = Minecraft.getMinecraft().fontRenderer;
float smallTextScale = fontRender.getUnicodeFlag() ? 3F/4F : 1F/2F;
GL11.glDisable(GL11.GL_BLEND);
GL11.glScalef(smallTextScale, smallTextScale, 1.0f);
fontRender.drawString( amountString, 0, (int) (16/smallTextScale) - fontRender.FONT_HEIGHT + 1, 0xFFFFFF, true);
GL11.glScalef(1f, 1f, 1f);
GL11.glDisable(GL11.GL_ALPHA_TEST);
}
}
}
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