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.items; import org.lwjgl.opengl.GL11; import net.minecraft.client.renderer.ItemRenderer; import net.minecraft.client.renderer.Tessellator; import net.minecraft.item.ItemStack; import net.minecraft.util.IIcon; import net.minecraftforge.client.IItemRenderer; import appeng.api.util.AEColor; import appeng.client.texture.ExtraItemTextures; import appeng.items.misc.ItemPaintBall; public class PaintBallRender implements IItemRenderer { @Override public boolean handleRenderType(final ItemStack item, final ItemRenderType type) { return true; } @Override public boolean shouldUseRenderHelper(final ItemRenderType type, final ItemStack item, final ItemRendererHelper helper) { return helper == ItemRendererHelper.ENTITY_BOBBING || helper == ItemRendererHelper.ENTITY_ROTATION; } @Override public void renderItem(final ItemRenderType type, final ItemStack item, final Object... data) { IIcon par2Icon = item.getIconIndex(); if (item.getItemDamage() >= 20) { par2Icon = ExtraItemTextures.ItemPaintBallShimmer.getIcon(); } final float f4 = par2Icon.getMinU(); final float f5 = par2Icon.getMaxU(); final float f6 = par2Icon.getMinV(); final float f7 = par2Icon.getMaxV(); final ItemPaintBall ipb = (ItemPaintBall) item.getItem(); final Tessellator tessellator = Tessellator.instance; GL11.glPushMatrix(); GL11.glPushAttrib(GL11.GL_ALL_ATTRIB_BITS); final AEColor col = ipb.getColor(item); final int colorValue = item.getItemDamage() >= 20 ? col.mediumVariant : col.mediumVariant; final int r = (colorValue >> 16) & 0xff; final int g = (colorValue >> 8) & 0xff; final int b = (colorValue) & 0xff; if (item.getItemDamage() >= 20) { final float fail = 0.7f; final int full = (int) (255 * 0.3); GL11.glColor4ub((byte) (full + r * fail), (byte) (full + g * fail), (byte) (full + b * fail), (byte) 255); } else { GL11.glColor4ub((byte) r, (byte) g, (byte) b, (byte) 255); } if (type == ItemRenderType.INVENTORY) { GL11.glScalef(16F, 16F, 10F); GL11.glTranslatef(0.0F, 1.0F, 0.0F); GL11.glRotatef(180F, 1.0F, 0.0F, 0.0F); GL11.glEnable(GL11.GL_ALPHA_TEST); tessellator.startDrawingQuads(); tessellator.setNormal(0.0F, 1.0F, 0.0F); tessellator.addVertexWithUV(0, 0, 0, f4, f7); tessellator.addVertexWithUV(1, 0, 0, f5, f7); tessellator.addVertexWithUV(1, 1, 0, f5, f6); tessellator.addVertexWithUV(0, 1, 0, f4, f6); tessellator.draw(); } else { if (type == ItemRenderType.EQUIPPED_FIRST_PERSON) { GL11.glTranslatef(0.0F, 0.0F, 0.0F); } else { GL11.glTranslatef(-0.5F, -0.3F, 0.01F); } final float f12 = 0.0625F; ItemRenderer.renderItemIn2D(tessellator, f5, f6, f4, f7, par2Icon.getIconWidth(), par2Icon.getIconHeight(), f12); GL11.glDisable(GL11.GL_CULL_FACE); GL11.glColor4f(1, 1, 1, 1.0F); GL11.glScalef(1F, 1.1F, 1F); GL11.glTranslatef(0.0F, 1.07F, f12 / -2.0f); GL11.glRotatef(180F, 1.0F, 0.0F, 0.0F); } GL11.glColor4f(1, 1, 1, 1.0F); GL11.glPopAttrib(); GL11.glPopMatrix(); } }