001package net.minecraftforge.client;
002
003import java.util.HashMap;
004import java.util.Random;
005import java.util.TreeSet;
006
007import org.lwjgl.opengl.GL11;
008import org.lwjgl.opengl.GL12;
009
010import cpw.mods.fml.client.FMLClientHandler;
011
012import net.minecraft.client.Minecraft;
013import net.minecraft.block.Block;
014import net.minecraft.entity.item.EntityItem;
015import net.minecraft.entity.Entity;
016import net.minecraft.entity.EntityLiving;
017import net.minecraft.entity.player.EntityPlayer;
018import net.minecraft.client.texturepacks.ITexturePack;
019import net.minecraft.item.Item;
020import net.minecraft.item.ItemBlock;
021import net.minecraft.item.ItemStack;
022import net.minecraft.util.MathHelper;
023import net.minecraft.util.MovingObjectPosition;
024import net.minecraft.client.model.ModelBiped;
025import net.minecraft.client.renderer.RenderBlocks;
026import net.minecraft.client.renderer.RenderEngine;
027import net.minecraft.client.renderer.RenderGlobal;
028import net.minecraft.client.renderer.Tessellator;
029import net.minecraft.client.renderer.entity.RenderItem;
030import net.minecraft.client.renderer.texture.TextureMap;
031import net.minecraftforge.client.event.DrawBlockHighlightEvent;
032import net.minecraftforge.client.event.RenderWorldLastEvent;
033import net.minecraftforge.client.event.TextureLoadEvent;
034import net.minecraftforge.client.event.TextureStitchEvent;
035import net.minecraftforge.common.IArmorTextureProvider;
036import net.minecraftforge.common.MinecraftForge;
037import static net.minecraftforge.client.IItemRenderer.ItemRenderType.*;
038import static net.minecraftforge.client.IItemRenderer.ItemRendererHelper.*;
039
040public class ForgeHooksClient
041{
042    static RenderEngine engine()
043    {
044        return FMLClientHandler.instance().getClient().renderEngine;
045    }
046
047    @Deprecated //Deprecated in 1.5.1, move to the more detailed one below.
048    @SuppressWarnings("deprecation")
049    public static String getArmorTexture(ItemStack armor, String _default)
050    {
051        String result = null;
052        if (armor.getItem() instanceof IArmorTextureProvider)
053        {
054            result = ((IArmorTextureProvider)armor.getItem()).getArmorTextureFile(armor);
055        }
056        return result != null ? result : _default;
057    }
058
059    public static String getArmorTexture(Entity entity, ItemStack armor, String _default, int slot, int layer)
060    {
061        String result = armor.getItem().getArmorTexture(armor, entity, slot, layer);
062        return result != null ? result : _default;
063    }
064
065    public static boolean renderEntityItem(EntityItem entity, ItemStack item, float bobing, float rotation, Random random, RenderEngine engine, RenderBlocks renderBlocks)
066    {
067        IItemRenderer customRenderer = MinecraftForgeClient.getItemRenderer(item, ENTITY);
068        if (customRenderer == null)
069        {
070            return false;
071        }
072
073        if (customRenderer.shouldUseRenderHelper(ENTITY, item, ENTITY_ROTATION))
074        {
075            GL11.glRotatef(rotation, 0.0F, 1.0F, 0.0F);
076        }
077        if (!customRenderer.shouldUseRenderHelper(ENTITY, item, ENTITY_BOBBING))
078        {
079            GL11.glTranslatef(0.0F, -bobing, 0.0F);
080        }
081        boolean is3D = customRenderer.shouldUseRenderHelper(ENTITY, item, BLOCK_3D);
082
083        if (item.getItem() instanceof ItemBlock && (is3D || RenderBlocks.renderItemIn3d(Block.blocksList[item.itemID].getRenderType())))
084        {
085            engine.bindTexture("/terrain.png");
086            int renderType = Block.blocksList[item.itemID].getRenderType();
087            float scale = (renderType == 1 || renderType == 19 || renderType == 12 || renderType == 2 ? 0.5F : 0.25F);
088
089            if (RenderItem.renderInFrame)
090            {
091                GL11.glScalef(1.25F, 1.25F, 1.25F);
092                GL11.glTranslatef(0.0F, 0.05F, 0.0F);
093                GL11.glRotatef(-90.0F, 0.0F, 1.0F, 0.0F);
094            }
095
096            GL11.glScalef(scale, scale, scale);
097            
098            int size = item.stackSize;
099            int count = (size > 20 ? 4 : (size > 5 ? 3 : (size > 1 ? 2 : 1)));
100
101            for(int j = 0; j < count; j++)
102            {
103                GL11.glPushMatrix();
104                if (j > 0)
105                {
106                    GL11.glTranslatef(
107                        ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / 0.5F,
108                        ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / 0.5F,
109                        ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / 0.5F);
110                }
111                customRenderer.renderItem(ENTITY, item, renderBlocks, entity);
112                GL11.glPopMatrix();
113            }
114        }
115        else
116        {
117            engine.bindTexture(item.getItemSpriteNumber() == 0 ? "/terrain.png" : "/gui/items.png");
118            GL11.glScalef(0.5F, 0.5F, 0.5F);
119            customRenderer.renderItem(ENTITY, item, renderBlocks, entity);
120        }
121        return true;
122    }
123
124    public static boolean renderInventoryItem(RenderBlocks renderBlocks, RenderEngine engine, ItemStack item, boolean inColor, float zLevel, float x, float y)
125    {
126        IItemRenderer customRenderer = MinecraftForgeClient.getItemRenderer(item, INVENTORY);
127        if (customRenderer == null)
128        {
129            return false;
130        }
131
132        engine.bindTexture(item.getItemSpriteNumber() == 0 ? "/terrain.png" : "/gui/items.png");
133        if (customRenderer.shouldUseRenderHelper(INVENTORY, item, INVENTORY_BLOCK))
134        {
135            GL11.glPushMatrix();
136            GL11.glTranslatef(x - 2, y + 3, -3.0F + zLevel);
137            GL11.glScalef(10F, 10F, 10F);
138            GL11.glTranslatef(1.0F, 0.5F, 1.0F);
139            GL11.glScalef(1.0F, 1.0F, -1F);
140            GL11.glRotatef(210F, 1.0F, 0.0F, 0.0F);
141            GL11.glRotatef(45F, 0.0F, 1.0F, 0.0F);
142
143            if(inColor)
144            {
145                int color = Item.itemsList[item.itemID].getColorFromItemStack(item, 0);
146                float r = (float)(color >> 16 & 0xff) / 255F;
147                float g = (float)(color >> 8 & 0xff) / 255F;
148                float b = (float)(color & 0xff) / 255F;
149                GL11.glColor4f(r, g, b, 1.0F);
150            }
151
152            GL11.glRotatef(-90F, 0.0F, 1.0F, 0.0F);
153            renderBlocks.useInventoryTint = inColor;
154            customRenderer.renderItem(INVENTORY, item, renderBlocks);
155            renderBlocks.useInventoryTint = true;
156            GL11.glPopMatrix();
157        }
158        else
159        {
160            GL11.glDisable(GL11.GL_LIGHTING);
161            GL11.glPushMatrix();
162            GL11.glTranslatef(x, y, -3.0F + zLevel);
163
164            if (inColor)
165            {
166                int color = Item.itemsList[item.itemID].getColorFromItemStack(item, 0);
167                float r = (float)(color >> 16 & 255) / 255.0F;
168                float g = (float)(color >> 8 & 255) / 255.0F;
169                float b = (float)(color & 255) / 255.0F;
170                GL11.glColor4f(r, g, b, 1.0F);
171            }
172
173            customRenderer.renderItem(INVENTORY, item, renderBlocks);
174            GL11.glPopMatrix();
175            GL11.glEnable(GL11.GL_LIGHTING);
176        }
177        return true;
178    }
179
180    public static void renderEquippedItem(IItemRenderer customRenderer, RenderBlocks renderBlocks, EntityLiving entity, ItemStack item)
181    {
182        if (customRenderer.shouldUseRenderHelper(EQUIPPED, item, EQUIPPED_BLOCK))
183        {
184            GL11.glPushMatrix();
185            GL11.glTranslatef(-0.5F, -0.5F, -0.5F);
186            customRenderer.renderItem(EQUIPPED, item, renderBlocks, entity);
187            GL11.glPopMatrix();
188        }
189        else
190        {
191            GL11.glPushMatrix();
192            GL11.glEnable(GL12.GL_RESCALE_NORMAL);
193            GL11.glTranslatef(0.0F, -0.3F, 0.0F);
194            GL11.glScalef(1.5F, 1.5F, 1.5F);
195            GL11.glRotatef(50.0F, 0.0F, 1.0F, 0.0F);
196            GL11.glRotatef(335.0F, 0.0F, 0.0F, 1.0F);
197            GL11.glTranslatef(-0.9375F, -0.0625F, 0.0F);
198            customRenderer.renderItem(EQUIPPED, item, renderBlocks, entity);
199            GL11.glDisable(GL12.GL_RESCALE_NORMAL);
200            GL11.glPopMatrix();
201        }
202    }
203
204    //Optifine Helper Functions u.u, these are here specifically for Optifine
205    //Note: When using Optfine, these methods are invoked using reflection, which
206    //incurs a major performance penalty.
207    public static void orientBedCamera(Minecraft mc, EntityLiving entity)
208    {
209        int x = MathHelper.floor_double(entity.posX);
210        int y = MathHelper.floor_double(entity.posY);
211        int z = MathHelper.floor_double(entity.posZ);
212        Block block = Block.blocksList[mc.theWorld.getBlockId(x, y, z)];
213
214        if (block != null && block.isBed(mc.theWorld, x, y, z, entity))
215        {
216            int var12 = block.getBedDirection(mc.theWorld, x, y, z);
217            GL11.glRotatef((float)(var12 * 90), 0.0F, 1.0F, 0.0F);
218        }
219    }
220
221    public static boolean onDrawBlockHighlight(RenderGlobal context, EntityPlayer player, MovingObjectPosition target, int subID, ItemStack currentItem, float partialTicks)
222    {
223        return MinecraftForge.EVENT_BUS.post(new DrawBlockHighlightEvent(context, player, target, subID, currentItem, partialTicks));
224    }
225
226    public static void dispatchRenderLast(RenderGlobal context, float partialTicks)
227    {
228        MinecraftForge.EVENT_BUS.post(new RenderWorldLastEvent(context, partialTicks));
229    }
230
231    public static void onTextureLoad(String texture, ITexturePack pack)
232    {
233        MinecraftForge.EVENT_BUS.post(new TextureLoadEvent(texture, pack));
234    }
235
236    public static void onTextureStitchedPre(TextureMap map)
237    {
238        MinecraftForge.EVENT_BUS.post(new TextureStitchEvent.Pre(map));
239    }
240
241    public static void onTextureStitchedPost(TextureMap map)
242    {
243        MinecraftForge.EVENT_BUS.post(new TextureStitchEvent.Post(map));
244    }
245
246    /**
247     * This is added for Optifine's convenience. And to explode if a ModMaker is developing.
248     * @param texture
249     */
250    public static void onTextureLoadPre(String texture)
251    {
252        if (Tessellator.renderingWorldRenderer)
253        {
254            String msg = String.format("Warning: Texture %s not preloaded, will cause render glitches!", texture);
255            System.out.println(msg);
256            if (Tessellator.class.getPackage() != null)
257            {
258                if (Tessellator.class.getPackage().getName().startsWith("net.minecraft."))
259                {
260                    Minecraft mc = FMLClientHandler.instance().getClient();
261                    if (mc.ingameGUI != null)
262                    {
263                        mc.ingameGUI.getChatGUI().printChatMessage(msg);
264                    }
265                }
266            }
267        }
268    }
269
270    static int renderPass = -1;
271    public static void setRenderPass(int pass)
272    {
273        renderPass = pass;
274    }
275
276    public static ModelBiped getArmorModel(EntityLiving entityLiving, ItemStack itemStack, int slotID, ModelBiped _default)
277    {
278        ModelBiped modelbiped = itemStack.getItem().getArmorModel(entityLiving, itemStack, slotID);
279        return modelbiped == null ? _default : modelbiped;
280    }
281}