Java tutorial
/** * Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team * http://www.mod-buildcraft.com * <p/> * BuildCraft is distributed under the terms of the Minecraft Mod Public * License 1.0, or MMPL. Please check the contents of the license located in * http://www.mod-buildcraft.com/MMPL-1.0.txt */ package buildcraft.robotics.render; import java.util.Date; import java.util.HashMap; import java.util.Map; import com.mojang.authlib.GameProfile; import org.lwjgl.opengl.GL11; import net.minecraft.client.model.ModelBase; import net.minecraft.client.model.ModelBiped; import net.minecraft.client.model.ModelRenderer; import net.minecraft.client.renderer.OpenGlHelper; import net.minecraft.client.renderer.entity.Render; import net.minecraft.client.renderer.entity.RenderBiped; import net.minecraft.client.renderer.entity.RenderItem; import net.minecraft.client.renderer.entity.RenderManager; import net.minecraft.client.renderer.texture.TextureManager; import net.minecraft.client.renderer.tileentity.TileEntitySkullRenderer; import net.minecraft.entity.Entity; import net.minecraft.entity.item.EntityItem; import net.minecraft.item.ItemArmor; import net.minecraft.item.ItemSkull; import net.minecraft.item.ItemStack; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.nbt.NBTUtil; import net.minecraft.util.ResourceLocation; import net.minecraftforge.client.ForgeHooksClient; import net.minecraftforge.client.IItemRenderer; import net.minecraftforge.common.util.Constants.NBT; import buildcraft.BuildCraftRobotics; import buildcraft.api.robots.IRobotOverlayItem; import buildcraft.core.DefaultProps; import buildcraft.core.EntityLaser; import buildcraft.core.lib.render.RenderUtils; import buildcraft.core.render.RenderLaser; import buildcraft.robotics.EntityRobot; import buildcraft.robotics.ItemRobot; public class RenderRobot extends Render implements IItemRenderer { private static final ResourceLocation overlay_red = new ResourceLocation( DefaultProps.TEXTURE_PATH_ROBOTS + "/overlay_side.png"); private static final ResourceLocation overlay_cyan = new ResourceLocation( DefaultProps.TEXTURE_PATH_ROBOTS + "/overlay_bottom.png"); private final EntityItem dummyEntityItem = new EntityItem(null); private final RenderItem customRenderItem; private ModelBase model = new ModelBase() { }; private ModelBase modelHelmet = new ModelBase() { }; private ModelBase modelSkullOverlay = new ModelBase() { }; private ModelRenderer box, helmetBox, skullOverlayBox; private Map<String, GameProfile> gameProfileCache = new HashMap<String, GameProfile>(); public RenderRobot() { customRenderItem = new RenderItem() { @Override public boolean shouldBob() { return false; } @Override public boolean shouldSpreadItems() { return false; } }; customRenderItem.setRenderManager(RenderManager.instance); box = new ModelRenderer(model, 0, 0); box.addBox(-4F, -4F, -4F, 8, 8, 8); box.setRotationPoint(0.0F, 0.0F, 0.0F); helmetBox = new ModelRenderer(modelHelmet, 0, 0); helmetBox.addBox(-4F, -8F, -4F, 8, 8, 8); helmetBox.setRotationPoint(0.0F, 0.0F, 0.0F); skullOverlayBox = new ModelRenderer(modelSkullOverlay, 32, 0); skullOverlayBox.addBox(-4.0F, -8.0F, -4.0F, 8, 8, 8, 0.5F); skullOverlayBox.setRotationPoint(0.0F, 0.0F, 0.0F); } @Override public void doRender(Entity entity, double x, double y, double z, float f, float f1) { doRender((EntityRobot) entity, x, y, z, f1); } private void doRender(EntityRobot robot, double x, double y, double z, float partialTicks) { GL11.glPushMatrix(); GL11.glTranslated(x, y, z); float robotYaw = this.interpolateRotation(robot.prevRenderYawOffset, robot.renderYawOffset, partialTicks); GL11.glRotatef(-robotYaw, 0.0f, 1.0f, 0.0f); if (robot.getStackInSlot(0) != null) { GL11.glPushMatrix(); GL11.glTranslatef(-0.125F, 0, -0.125F); doRenderItem(robot.getStackInSlot(0)); GL11.glColor3f(1, 1, 1); GL11.glPopMatrix(); } if (robot.getStackInSlot(1) != null) { GL11.glPushMatrix(); GL11.glTranslatef(+0.125F, 0, -0.125F); doRenderItem(robot.getStackInSlot(1)); GL11.glColor3f(1, 1, 1); GL11.glPopMatrix(); } if (robot.getStackInSlot(2) != null) { GL11.glPushMatrix(); GL11.glTranslatef(+0.125F, 0, +0.125F); doRenderItem(robot.getStackInSlot(2)); GL11.glColor3f(1, 1, 1); GL11.glPopMatrix(); } if (robot.getStackInSlot(3) != null) { GL11.glPushMatrix(); GL11.glTranslatef(-0.125F, 0, +0.125F); doRenderItem(robot.getStackInSlot(3)); GL11.glColor3f(1, 1, 1); GL11.glPopMatrix(); } if (robot.itemInUse != null) { GL11.glPushMatrix(); GL11.glRotatef(robot.itemAngle2, 0, 0, 1); if (robot.itemActive) { long newDate = new Date().getTime(); robot.itemActiveStage = (robot.itemActiveStage + (newDate - robot.lastUpdateTime) / 10) % 45; GL11.glRotatef(robot.itemActiveStage, 0, 0, 1); robot.lastUpdateTime = newDate; } GL11.glTranslatef(-0.4F, 0, 0); GL11.glRotatef(-45F + 180F, 0, 1, 0); GL11.glScalef(0.8F, 0.8F, 0.8F); ItemStack itemstack1 = robot.itemInUse; if (itemstack1.getItem().requiresMultipleRenderPasses()) { for (int k = 0; k < itemstack1.getItem().getRenderPasses(itemstack1.getItemDamage()); ++k) { RenderUtils.setGLColorFromInt(itemstack1.getItem().getColorFromItemStack(itemstack1, k)); this.renderManager.itemRenderer.renderItem(robot, itemstack1, k); } } else { RenderUtils.setGLColorFromInt(itemstack1.getItem().getColorFromItemStack(itemstack1, 0)); this.renderManager.itemRenderer.renderItem(robot, itemstack1, 0); } GL11.glColor3f(1, 1, 1); GL11.glPopMatrix(); } if (robot.laser.isVisible) { robot.laser.head.x = robot.posX; robot.laser.head.y = robot.posY; robot.laser.head.z = robot.posZ; RenderLaser.doRenderLaser(renderManager.renderEngine, robot.laser, EntityLaser.LASER_TEXTURES[1]); } if (robot.getTexture() != null) { renderManager.renderEngine.bindTexture(robot.getTexture()); float storagePercent = (float) robot.getBattery().getEnergyStored() / (float) robot.getBattery().getMaxEnergyStored(); if (robot.hurtTime > 0) { GL11.glColor3f(1.0f, 0.6f, 0.6f); GL11.glRotatef(robot.hurtTime * 0.01f, 0, 0, 1); } doRenderRobot(1F / 16F, renderManager.renderEngine, storagePercent, robot.isActive()); } for (ItemStack s : robot.getWearables()) { doRenderWearable(robot, renderManager.renderEngine, s); } GL11.glPopMatrix(); } @Override protected ResourceLocation getEntityTexture(Entity entity) { return ((EntityRobot) entity).getTexture(); } @Override public boolean handleRenderType(ItemStack item, ItemRenderType type) { return true; } @Override public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper) { return true; } @Override public void renderItem(ItemRenderType type, ItemStack item, Object... data) { if (RenderManager.instance == null || RenderManager.instance.renderEngine == null) { return; } GL11.glPushMatrix(); if (item.getItem() == BuildCraftRobotics.robotItem) { ItemRobot robot = (ItemRobot) item.getItem(); RenderManager.instance.renderEngine.bindTexture(robot.getTextureRobot(item)); } if (type == ItemRenderType.EQUIPPED_FIRST_PERSON) { GL11.glTranslated(0.0, 1.0, 0.7); } else if (type == ItemRenderType.ENTITY) { GL11.glScaled(0.6, 0.6, 0.6); } else if (type == ItemRenderType.INVENTORY) { GL11.glScaled(1.5, 1.5, 1.5); } doRenderRobot(1F / 16F, RenderManager.instance.renderEngine, 0.9F, false); GL11.glPopMatrix(); } private void doRenderItem(ItemStack stack) { float renderScale = 0.5f; GL11.glPushMatrix(); GL11.glTranslatef(0, 0.28F, 0); GL11.glScalef(renderScale, renderScale, renderScale); dummyEntityItem.setEntityItemStack(stack); customRenderItem.doRender(dummyEntityItem, 0, 0, 0, 0, 0); GL11.glPopMatrix(); } private void doRenderWearable(EntityRobot entity, TextureManager textureManager, ItemStack wearable) { if (wearable.getItem() instanceof IRobotOverlayItem) { ((IRobotOverlayItem) wearable.getItem()).renderRobotOverlay(wearable, textureManager); } else if (wearable.getItem() instanceof ItemArmor) { GL11.glPushMatrix(); GL11.glScalef(1.0125F, 1.0125F, 1.0125F); GL11.glTranslatef(0.0f, -0.25f, 0.0f); GL11.glRotatef(180F, 0, 0, 1); int color = wearable.getItem().getColorFromItemStack(wearable, 0); if (color != 16777215) { GL11.glPushAttrib(GL11.GL_COLOR_BUFFER_BIT); GL11.glColor3ub((byte) (color >> 16), (byte) ((color >> 8) & 255), (byte) (color & 255)); } textureManager.bindTexture(RenderBiped.getArmorResource(entity, wearable, 0, null)); ModelBiped armorModel = ForgeHooksClient.getArmorModel(entity, wearable, 0, null); if (armorModel != null) { armorModel.render(entity, 0, 0, 0, -90f, 0, 1 / 16F); if (color != 16777215) { GL11.glPopAttrib(); } } else { GL11.glRotatef(-90.0f, 0.0f, 1.0f, 0.0f); helmetBox.render(1 / 16F); if (color != 16777215) { this.bindTexture(RenderBiped.getArmorResource(entity, wearable, 0, "overlay")); helmetBox.render(1 / 16F); GL11.glPopAttrib(); } } GL11.glPopMatrix(); } else if (wearable.getItem() instanceof ItemSkull) { doRenderSkull(wearable); } } private void doRenderSkull(ItemStack wearable) { GL11.glPushMatrix(); GL11.glScalef(1.0125F, 1.0125F, 1.0125F); GameProfile gameProfile = null; if (wearable.hasTagCompound()) { NBTTagCompound nbt = wearable.getTagCompound(); if (nbt.hasKey("Name")) { gameProfile = gameProfileCache.get(nbt.getString("Name")); } else if (nbt.hasKey("SkullOwner", NBT.TAG_COMPOUND)) { gameProfile = NBTUtil.func_152459_a(nbt.getCompoundTag("SkullOwner")); nbt.setString("Name", gameProfile.getName()); gameProfileCache.put(gameProfile.getName(), gameProfile); } } TileEntitySkullRenderer.field_147536_b.func_152674_a(-0.5F, -0.25F, -0.5F, 1, -90.0F, wearable.getItemDamage(), gameProfile); if (gameProfile != null) { GL11.glTranslatef(0.0f, -0.25f, 0.0f); GL11.glRotatef(180F, 0, 0, 1); GL11.glRotatef(-90.0f, 0.0f, 1.0f, 0.0f); skullOverlayBox.render(1 / 16f); } GL11.glPopMatrix(); } private void doRenderRobot(float factor, TextureManager texManager, float storagePercent, boolean isAsleep) { box.render(factor); if (!isAsleep) { float lastBrightnessX = OpenGlHelper.lastBrightnessX; float lastBrightnessY = OpenGlHelper.lastBrightnessY; GL11.glPushMatrix(); GL11.glEnable(GL11.GL_BLEND); GL11.glEnable(GL11.GL_ALPHA_TEST); GL11.glDisable(GL11.GL_LIGHTING); GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA); OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, 240, 240); GL11.glColor4f(1.0F, 1.0F, 1.0F, storagePercent); texManager.bindTexture(overlay_red); box.render(factor); GL11.glDisable(GL11.GL_BLEND); GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F); texManager.bindTexture(overlay_cyan); box.render(factor); GL11.glEnable(GL11.GL_LIGHTING); GL11.glPopMatrix(); OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit, lastBrightnessX, lastBrightnessY); } } private float interpolateRotation(float prevRot, float rot, float partialTicks) { float angle; for (angle = rot - prevRot; angle < -180.0F; angle += 360.0F) { } while (angle >= 180.0F) { angle -= 360.0F; } return prevRot + partialTicks * angle; } }