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.EntityLiving;
016import net.minecraft.entity.player.EntityPlayer;
017import net.minecraft.client.texturepacks.ITexturePack;
018import net.minecraft.item.Item;
019import net.minecraft.item.ItemBlock;
020import net.minecraft.item.ItemStack;
021import net.minecraft.util.MathHelper;
022import net.minecraft.util.MovingObjectPosition;
023import net.minecraft.client.renderer.RenderBlocks;
024import net.minecraft.client.renderer.RenderEngine;
025import net.minecraft.client.renderer.RenderGlobal;
026import net.minecraft.client.renderer.Tessellator;
027import net.minecraft.client.renderer.entity.RenderItem;
028import net.minecraftforge.client.event.DrawBlockHighlightEvent;
029import net.minecraftforge.client.event.RenderWorldLastEvent;
030import net.minecraftforge.client.event.TextureLoadEvent;
031import net.minecraftforge.common.IArmorTextureProvider;
032import net.minecraftforge.common.MinecraftForge;
033import static net.minecraftforge.client.IItemRenderer.ItemRenderType.*;
034import static net.minecraftforge.client.IItemRenderer.ItemRendererHelper.*;
035
036public class ForgeHooksClient
037{
038    static RenderEngine engine()
039    {
040        return FMLClientHandler.instance().getClient().renderEngine;
041    }
042
043    public static String getArmorTexture(ItemStack armor, String _default)
044    {
045        if (armor.getItem() instanceof IArmorTextureProvider)
046        {
047            return ((IArmorTextureProvider)armor.getItem()).getArmorTextureFile(armor);
048        }
049        return _default;
050    }
051
052    public static boolean renderEntityItem(EntityItem entity, ItemStack item, float bobing, float rotation, Random random, RenderEngine engine, RenderBlocks renderBlocks)
053    {
054        IItemRenderer customRenderer = MinecraftForgeClient.getItemRenderer(item, ENTITY);
055        if (customRenderer == null)
056        {
057            return false;
058        }
059
060        if (customRenderer.shouldUseRenderHelper(ENTITY, item, ENTITY_ROTATION))
061        {
062            GL11.glRotatef(rotation, 0.0F, 1.0F, 0.0F);
063        }
064        if (!customRenderer.shouldUseRenderHelper(ENTITY, item, ENTITY_BOBBING))
065        {
066            GL11.glTranslatef(0.0F, -bobing, 0.0F);
067        }
068        boolean is3D = customRenderer.shouldUseRenderHelper(ENTITY, item, BLOCK_3D);
069
070        if (item.getItem() instanceof ItemBlock && (is3D || RenderBlocks.renderItemIn3d(Block.blocksList[item.itemID].getRenderType())))
071        {
072            engine.func_98187_b("/terrain.png");
073            int renderType = Block.blocksList[item.itemID].getRenderType();
074            float scale = (renderType == 1 || renderType == 19 || renderType == 12 || renderType == 2 ? 0.5F : 0.25F);
075
076            if (RenderItem.field_82407_g)
077            {
078                GL11.glScalef(1.25F, 1.25F, 1.25F);
079                GL11.glTranslatef(0.0F, 0.05F, 0.0F);
080                GL11.glRotatef(-90.0F, 0.0F, 1.0F, 0.0F);
081            }
082
083            GL11.glScalef(scale, scale, scale);
084            
085            int size = item.stackSize;
086            int count = (size > 20 ? 4 : (size > 5 ? 3 : (size > 1 ? 2 : 1)));
087
088            for(int j = 0; j < count; j++)
089            {
090                GL11.glPushMatrix();
091                if (j > 0)
092                {
093                    GL11.glTranslatef(
094                        ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / 0.5F,
095                        ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / 0.5F,
096                        ((random.nextFloat() * 2.0F - 1.0F) * 0.2F) / 0.5F);
097                }
098                customRenderer.renderItem(ENTITY, item, renderBlocks, entity);
099                GL11.glPopMatrix();
100            }
101        }
102        else
103        {
104            engine.func_98187_b(item.func_94608_d() == 0 ? "/terrain.png" : "/gui/items.png");
105            GL11.glScalef(0.5F, 0.5F, 0.5F);
106            customRenderer.renderItem(ENTITY, item, renderBlocks, entity);
107        }
108        return true;
109    }
110
111    public static boolean renderInventoryItem(RenderBlocks renderBlocks, RenderEngine engine, ItemStack item, boolean inColor, float zLevel, float x, float y)
112    {
113        IItemRenderer customRenderer = MinecraftForgeClient.getItemRenderer(item, INVENTORY);
114        if (customRenderer == null)
115        {
116                return false;
117        }
118
119        engine.func_98187_b(item.func_94608_d() == 0 ? "/terrain.png" : "/gui/items.png");
120        if (customRenderer.shouldUseRenderHelper(INVENTORY, item, INVENTORY_BLOCK))
121        {
122            GL11.glPushMatrix();
123            GL11.glTranslatef(x - 2, y + 3, -3.0F + zLevel);
124            GL11.glScalef(10F, 10F, 10F);
125            GL11.glTranslatef(1.0F, 0.5F, 1.0F);
126            GL11.glScalef(1.0F, 1.0F, -1F);
127            GL11.glRotatef(210F, 1.0F, 0.0F, 0.0F);
128            GL11.glRotatef(45F, 0.0F, 1.0F, 0.0F);
129
130            if(inColor)
131            {
132                int color = Item.itemsList[item.itemID].getColorFromItemStack(item, 0);
133                float r = (float)(color >> 16 & 0xff) / 255F;
134                float g = (float)(color >> 8 & 0xff) / 255F;
135                float b = (float)(color & 0xff) / 255F;
136                GL11.glColor4f(r, g, b, 1.0F);
137            }
138
139            GL11.glRotatef(-90F, 0.0F, 1.0F, 0.0F);
140            renderBlocks.useInventoryTint = inColor;
141            customRenderer.renderItem(INVENTORY, item, renderBlocks);
142            renderBlocks.useInventoryTint = true;
143            GL11.glPopMatrix();
144        }
145        else
146        {
147            GL11.glDisable(GL11.GL_LIGHTING);
148            GL11.glPushMatrix();
149            GL11.glTranslatef(x, y, -3.0F + zLevel);
150
151            if (inColor)
152            {
153                int color = Item.itemsList[item.itemID].getColorFromItemStack(item, 0);
154                float r = (float)(color >> 16 & 255) / 255.0F;
155                float g = (float)(color >> 8 & 255) / 255.0F;
156                float b = (float)(color & 255) / 255.0F;
157                GL11.glColor4f(r, g, b, 1.0F);
158            }
159
160            customRenderer.renderItem(INVENTORY, item, renderBlocks);
161            GL11.glPopMatrix();
162            GL11.glEnable(GL11.GL_LIGHTING);
163        }
164        return true;
165    }
166
167    public static void renderEquippedItem(IItemRenderer customRenderer, RenderBlocks renderBlocks, EntityLiving entity, ItemStack item)
168    {
169        if (customRenderer.shouldUseRenderHelper(EQUIPPED, item, EQUIPPED_BLOCK))
170        {
171            GL11.glPushMatrix();
172            GL11.glTranslatef(-0.5F, -0.5F, -0.5F);
173            customRenderer.renderItem(EQUIPPED, item, renderBlocks, entity);
174            GL11.glPopMatrix();
175        }
176        else
177        {
178            GL11.glPushMatrix();
179            GL11.glEnable(GL12.GL_RESCALE_NORMAL);
180            GL11.glTranslatef(0.0F, -0.3F, 0.0F);
181            GL11.glScalef(1.5F, 1.5F, 1.5F);
182            GL11.glRotatef(50.0F, 0.0F, 1.0F, 0.0F);
183            GL11.glRotatef(335.0F, 0.0F, 0.0F, 1.0F);
184            GL11.glTranslatef(-0.9375F, -0.0625F, 0.0F);
185            customRenderer.renderItem(EQUIPPED, item, renderBlocks, entity);
186            GL11.glDisable(GL12.GL_RESCALE_NORMAL);
187            GL11.glPopMatrix();
188        }
189    }
190
191    //Optifine Helper Functions u.u, these are here specifically for Optifine
192    //Note: When using Optfine, these methods are invoked using reflection, which
193    //incurs a major performance penalty.
194    public static void orientBedCamera(Minecraft mc, EntityLiving entity)
195    {
196        int x = MathHelper.floor_double(entity.posX);
197        int y = MathHelper.floor_double(entity.posY);
198        int z = MathHelper.floor_double(entity.posZ);
199        Block block = Block.blocksList[mc.theWorld.getBlockId(x, y, z)];
200
201        if (block != null && block.isBed(mc.theWorld, x, y, z, entity))
202        {
203            int var12 = block.getBedDirection(mc.theWorld, x, y, z);
204            GL11.glRotatef((float)(var12 * 90), 0.0F, 1.0F, 0.0F);
205        }
206    }
207
208    public static boolean onDrawBlockHighlight(RenderGlobal context, EntityPlayer player, MovingObjectPosition target, int subID, ItemStack currentItem, float partialTicks)
209    {
210        return MinecraftForge.EVENT_BUS.post(new DrawBlockHighlightEvent(context, player, target, subID, currentItem, partialTicks));
211    }
212
213    public static void dispatchRenderLast(RenderGlobal context, float partialTicks)
214    {
215        MinecraftForge.EVENT_BUS.post(new RenderWorldLastEvent(context, partialTicks));
216    }
217
218    public static void onTextureLoad(String texture, ITexturePack pack)
219    {
220        MinecraftForge.EVENT_BUS.post(new TextureLoadEvent(texture, pack));
221    }
222
223    /**
224     * This is added for Optifine's convenience. And to explode if a ModMaker is developing.
225     * @param texture
226     */
227    public static void onTextureLoadPre(String texture)
228    {
229        if (Tessellator.renderingWorldRenderer)
230        {
231            String msg = String.format("Warning: Texture %s not preloaded, will cause render glitches!", texture);
232            System.out.println(msg);
233            if (Tessellator.class.getPackage() != null)
234            {
235                if (Tessellator.class.getPackage().getName().startsWith("net.minecraft."))
236                {
237                    Minecraft mc = FMLClientHandler.instance().getClient();
238                    if (mc.ingameGUI != null)
239                    {
240                        mc.ingameGUI.getChatGUI().printChatMessage(msg);
241                    }
242                }
243            }
244        }
245    }
246
247    static int renderPass = -1;
248    public static void setRenderPass(int pass)
249    {
250        renderPass = pass;
251    }
252}