Java tutorial
/* * This file is part of Applied Energistics 2. * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved. * * Applied Energistics 2 is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Applied Energistics 2 is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>. */ package appeng.client.render; import javax.annotation.Nonnull; import org.lwjgl.opengl.GL11; import net.minecraft.client.gui.FontRenderer; import net.minecraft.client.renderer.Tessellator; import net.minecraft.client.renderer.entity.RenderItem; import net.minecraft.client.renderer.texture.TextureManager; import net.minecraft.item.ItemStack; import appeng.api.storage.data.IAEItemStack; import appeng.core.AEConfig; import appeng.core.localization.GuiText; import appeng.util.ISlimReadableNumberConverter; import appeng.util.IWideReadableNumberConverter; import appeng.util.ReadableNumberConverter; /** * @author AlgorithmX2 * @author thatsIch * @version rv2 * @since rv0 */ public class AppEngRenderItem extends RenderItem { private static final ISlimReadableNumberConverter SLIM_CONVERTER = ReadableNumberConverter.INSTANCE; private static final IWideReadableNumberConverter WIDE_CONVERTER = ReadableNumberConverter.INSTANCE; private IAEItemStack aeStack = null; @Override public void renderItemOverlayIntoGUI(final FontRenderer fontRenderer, final TextureManager textureManager, final ItemStack is, final int par4, final int par5, final String par6Str) { if (is != null) { final float scaleFactor = AEConfig.instance.useTerminalUseLargeFont() ? 0.85f : 0.5f; final float inverseScaleFactor = 1.0f / scaleFactor; final int offset = AEConfig.instance.useTerminalUseLargeFont() ? 0 : -1; final boolean unicodeFlag = fontRenderer.getUnicodeFlag(); fontRenderer.setUnicodeFlag(false); if (is.getItem().showDurabilityBar(is)) { final double health = is.getItem().getDurabilityForDisplay(is); final int j1 = (int) Math.round(13.0D - health * 13.0D); final int k = (int) Math.round(255.0D - health * 255.0D); GL11.glDisable(GL11.GL_LIGHTING); GL11.glDisable(GL11.GL_DEPTH_TEST); GL11.glDisable(GL11.GL_TEXTURE_2D); GL11.glDisable(GL11.GL_ALPHA_TEST); GL11.glDisable(GL11.GL_BLEND); final Tessellator tessellator = Tessellator.instance; final int l = 255 - k << 16 | k << 8; final int i1 = (255 - k) / 4 << 16 | 16128; this.renderQuad(tessellator, par4 + 2, par5 + 13, 13, 2, 0); this.renderQuad(tessellator, par4 + 2, par5 + 13, 12, 1, i1); this.renderQuad(tessellator, par4 + 2, par5 + 13, j1, 1, l); GL11.glEnable(GL11.GL_ALPHA_TEST); GL11.glEnable(GL11.GL_TEXTURE_2D); GL11.glEnable(GL11.GL_LIGHTING); GL11.glEnable(GL11.GL_DEPTH_TEST); GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F); } if (is.stackSize == 0) { final String craftLabelText = AEConfig.instance.useTerminalUseLargeFont() ? GuiText.LargeFontCraft.getLocal() : GuiText.SmallFontCraft.getLocal(); GL11.glDisable(GL11.GL_LIGHTING); GL11.glDisable(GL11.GL_DEPTH_TEST); GL11.glPushMatrix(); GL11.glScaled(scaleFactor, scaleFactor, scaleFactor); final int X = (int) (((float) par4 + offset + 16.0f - fontRenderer.getStringWidth(craftLabelText) * scaleFactor) * inverseScaleFactor); final int Y = (int) (((float) par5 + offset + 16.0f - 7.0f * scaleFactor) * inverseScaleFactor); fontRenderer.drawStringWithShadow(craftLabelText, X, Y, 16777215); GL11.glPopMatrix(); GL11.glEnable(GL11.GL_LIGHTING); GL11.glEnable(GL11.GL_DEPTH_TEST); } final long amount = this.aeStack != null ? this.aeStack.getStackSize() : is.stackSize; if (amount != 0) { final String stackSize = this.getToBeRenderedStackSize(amount); GL11.glDisable(GL11.GL_LIGHTING); GL11.glDisable(GL11.GL_DEPTH_TEST); GL11.glPushMatrix(); GL11.glScaled(scaleFactor, scaleFactor, scaleFactor); final int X = (int) (((float) par4 + offset + 16.0f - fontRenderer.getStringWidth(stackSize) * scaleFactor) * inverseScaleFactor); final int Y = (int) (((float) par5 + offset + 16.0f - 7.0f * scaleFactor) * inverseScaleFactor); fontRenderer.drawStringWithShadow(stackSize, X, Y, 16777215); GL11.glPopMatrix(); GL11.glEnable(GL11.GL_LIGHTING); GL11.glEnable(GL11.GL_DEPTH_TEST); } fontRenderer.setUnicodeFlag(unicodeFlag); } } private void renderQuad(final Tessellator par1Tessellator, final int par2, final int par3, final int par4, final int par5, final int par6) { par1Tessellator.startDrawingQuads(); par1Tessellator.setColorOpaque_I(par6); par1Tessellator.addVertex(par2, par3, 0.0D); par1Tessellator.addVertex(par2, par3 + par5, 0.0D); par1Tessellator.addVertex(par2 + par4, par3 + par5, 0.0D); par1Tessellator.addVertex(par2 + par4, par3, 0.0D); par1Tessellator.draw(); } private String getToBeRenderedStackSize(final long originalSize) { if (AEConfig.instance.useTerminalUseLargeFont()) { return SLIM_CONVERTER.toSlimReadableForm(originalSize); } else { return WIDE_CONVERTER.toWideReadableForm(originalSize); } } public IAEItemStack getAeStack() { return this.aeStack; } public void setAeStack(@Nonnull final IAEItemStack aeStack) { this.aeStack = aeStack; } }