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