    001    package net.minecraft.client.renderer;
    002
    003    import cpw.mods.fml.relauncher.Side;
    004    import cpw.mods.fml.relauncher.SideOnly;
    005    import java.util.ArrayList;
    006    import java.util.HashSet;
    007    import java.util.List;
    008    import net.minecraft.block.Block;
    009    import net.minecraft.client.renderer.culling.ICamera;
    010    import net.minecraft.client.renderer.entity.RenderItem;
    011    import net.minecraft.client.renderer.tileentity.TileEntityRenderer;
    012    import net.minecraft.entity.Entity;
    013    import net.minecraft.tileentity.TileEntity;
    014    import net.minecraft.util.AxisAlignedBB;
    015    import net.minecraft.world.ChunkCache;
    016    import net.minecraft.world.World;
    017    import net.minecraft.world.chunk.Chunk;
    018    import org.lwjgl.opengl.GL11;
    019
    020    import net.minecraftforge.client.ForgeHooksClient;
    021
    022    @SideOnly(Side.CLIENT)
    023    public class WorldRenderer
    024    {
    025        /** Reference to the World object. */
    026        public World worldObj;
    027        private int glRenderList = -1;
    028        //private static Tessellator tessellator = Tessellator.instance;
    029        public static int chunksUpdated = 0;
    030        public int posX;
    031        public int posY;
    032        public int posZ;
    033
    034        /** Pos X minus */
    035        public int posXMinus;
    036
    037        /** Pos Y minus */
    038        public int posYMinus;
    039
    040        /** Pos Z minus */
    041        public int posZMinus;
    042
    043        /** Pos X clipped */
    044        public int posXClip;
    045
    046        /** Pos Y clipped */
    047        public int posYClip;
    048
    049        /** Pos Z clipped */
    050        public int posZClip;
    051        public boolean isInFrustum = false;
    052
    053        /** Should this renderer skip this render pass */
    054        public boolean[] skipRenderPass = new boolean[2];
    055
    056        /** Pos X plus */
    057        public int posXPlus;
    058
    059        /** Pos Y plus */
    060        public int posYPlus;
    061
    062        /** Pos Z plus */
    063        public int posZPlus;
    064
    065        /** Boolean for whether this renderer needs to be updated or not */
    066        public boolean needsUpdate;
    067
    068        /** Axis aligned bounding box */
    069        public AxisAlignedBB rendererBoundingBox;
    070
    071        /** Chunk index */
    072        public int chunkIndex;
    073
    074        /** Is this renderer visible according to the occlusion query */
    075        public boolean isVisible = true;
    076
    077        /** Is this renderer waiting on the result of the occlusion query */
    078        public boolean isWaitingOnOcclusionQuery;
    079
    080        /** OpenGL occlusion query */
    081        public int glOcclusionQuery;
    082
    083        /** Is the chunk lit */
    084        public boolean isChunkLit;
    085        private boolean isInitialized = false;
    086
    087        /** All the tile entities that have special rendering code for this chunk */
    088        public List tileEntityRenderers = new ArrayList();
    089        private List tileEntities;
    090
    091        /** Bytes sent to the GPU */
    092        private int bytesDrawn;
    093
    094        public WorldRenderer(World par1World, List par2List, int par3, int par4, int par5, int par6)
    095        {
    096            this.worldObj = par1World;
    097            this.tileEntities = par2List;
    098            this.glRenderList = par6;
    099            this.posX = -999;
    100            this.setPosition(par3, par4, par5);
    101            this.needsUpdate = false;
    102        }
    103
    104        /**
    105         * Sets a new position for the renderer and setting it up so it can be reloaded with the new data for that position
    106         */
    107        public void setPosition(int par1, int par2, int par3)
    108        {
    109            if (par1 != this.posX || par2 != this.posY || par3 != this.posZ)
    110            {
    111                this.setDontDraw();
    112                this.posX = par1;
    113                this.posY = par2;
    114                this.posZ = par3;
    115                this.posXPlus = par1 + 8;
    116                this.posYPlus = par2 + 8;
    117                this.posZPlus = par3 + 8;
    118                this.posXClip = par1 & 1023;
    119                this.posYClip = par2;
    120                this.posZClip = par3 & 1023;
    121                this.posXMinus = par1 - this.posXClip;
    122                this.posYMinus = par2 - this.posYClip;
    123                this.posZMinus = par3 - this.posZClip;
    124                float var4 = 6.0F;
    125                this.rendererBoundingBox = AxisAlignedBB.getBoundingBox((double)((float)par1 - var4), (double)((float)par2 - var4), (double)((float)par3 - var4), (double)((float)(par1 + 16) + var4), (double)((float)(par2 + 16) + var4), (double)((float)(par3 + 16) + var4));
    126                GL11.glNewList(this.glRenderList + 2, GL11.GL_COMPILE);
    127                RenderItem.renderAABB(AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)((float)this.posXClip - var4), (double)((float)this.posYClip - var4), (double)((float)this.posZClip - var4), (double)((float)(this.posXClip + 16) + var4), (double)((float)(this.posYClip + 16) + var4), (double)((float)(this.posZClip + 16) + var4)));
    128                GL11.glEndList();
    129                this.markDirty();
    130            }
    131        }
    132
    133        private void setupGLTranslation()
    134        {
    135            GL11.glTranslatef((float)this.posXClip, (float)this.posYClip, (float)this.posZClip);
    136        }
    137
    138        /**
    139         * Will update this chunk renderer
    140         */
    141        public void updateRenderer()
    142        {
    143            if (this.needsUpdate)
    144            {
    145                this.needsUpdate = false;
    146                int var1 = this.posX;
    147                int var2 = this.posY;
    148                int var3 = this.posZ;
    149                int var4 = this.posX + 16;
    150                int var5 = this.posY + 16;
    151                int var6 = this.posZ + 16;
    152
    153                for (int var7 = 0; var7 < 2; ++var7)
    154                {
    155                    this.skipRenderPass[var7] = true;
    156                }
    157
    158                Chunk.isLit = false;
    159                HashSet var21 = new HashSet();
    160                var21.addAll(this.tileEntityRenderers);
    161                this.tileEntityRenderers.clear();
    162                byte var8 = 1;
    163                ChunkCache var9 = new ChunkCache(this.worldObj, var1 - var8, var2 - var8, var3 - var8, var4 + var8, var5 + var8, var6 + var8);
    164
    165                if (!var9.extendedLevelsInChunkCache())
    166                {
    167                    ++chunksUpdated;
    168                    RenderBlocks var10 = new RenderBlocks(var9);
    169                    this.bytesDrawn = 0;
    170
    171                    for (int var11 = 0; var11 < 2; ++var11)
    172                    {
    173                        boolean var12 = false;
    174                        boolean var13 = false;
    175                        boolean var14 = false;
    176
    177                        for (int var15 = var2; var15 < var5; ++var15)
    178                        {
    179                            for (int var16 = var3; var16 < var6; ++var16)
    180                            {
    181                                for (int var17 = var1; var17 < var4; ++var17)
    182                                {
    183                                    int var18 = var9.getBlockId(var17, var15, var16);
    184
    185                                    if (var18 > 0)
    186                                    {
    187                                        if (!var14)
    188                                        {
    189                                            var14 = true;
    190                                            GL11.glNewList(this.glRenderList + var11, GL11.GL_COMPILE);
    191                                            GL11.glPushMatrix();
    192                                            this.setupGLTranslation();
    193                                            float var19 = 1.000001F;
    194                                            GL11.glTranslatef(-8.0F, -8.0F, -8.0F);
    195                                            GL11.glScalef(var19, var19, var19);
    196                                            GL11.glTranslatef(8.0F, 8.0F, 8.0F);
    197                                            ForgeHooksClient.beforeRenderPass(var11);
    198                                            Tessellator.instance.startDrawingQuads();
    199                                            Tessellator.instance.setTranslation((double)(-this.posX), (double)(-this.posY), (double)(-this.posZ));
    200                                        }
    201
    202                                        Block var23 = Block.blocksList[var18];
    203
    204                                        if (var23 != null)
    205                                        {
    206                                            if (var11 == 0 && var23.hasTileEntity(var9.getBlockMetadata(var17, var15, var16)))
    207                                            {
    208                                                TileEntity var20 = var9.getBlockTileEntity(var17, var15, var16);
    209
    210                                                if (TileEntityRenderer.instance.hasSpecialRenderer(var20))
    211                                                {
    212                                                    this.tileEntityRenderers.add(var20);
    213                                                }
    214                                            }
    215
    216                                            int var24 = var23.getRenderBlockPass();
    217
    218                                            if (var24 > var11)
    219                                            {
    220                                                var12 = true;
    221                                            }
    222                                            if (!var23.canRenderInPass(var11))
    223                                            {
    224                                                continue;
    225                                            }
    226                                            ForgeHooksClient.beforeBlockRender(var23, var10);
    227                                            var13 |= var10.renderBlockByRenderType(var23, var17, var15, var16);
    228                                            ForgeHooksClient.afterBlockRender(var23, var10);
    229                                        }
    230                                    }
    231                                }
    232                            }
    233                        }
    234
    235                        if (var14)
    236                        {
    237                            ForgeHooksClient.afterRenderPass(var11);
    238                            this.bytesDrawn += Tessellator.instance.draw();
    239                            GL11.glPopMatrix();
    240                            GL11.glEndList();
    241                            Tessellator.instance.setTranslation(0.0D, 0.0D, 0.0D);
    242                        }
    243                        else
    244                        {
    245                            var13 = false;
    246                        }
    247
    248                        if (var13)
    249                        {
    250                            this.skipRenderPass[var11] = false;
    251                        }
    252
    253                        if (!var12)
    254                        {
    255                            break;
    256                        }
    257                    }
    258                }
    259
    260                HashSet var22 = new HashSet();
    261                var22.addAll(this.tileEntityRenderers);
    262                var22.removeAll(var21);
    263                this.tileEntities.addAll(var22);
    264                var21.removeAll(this.tileEntityRenderers);
    265                this.tileEntities.removeAll(var21);
    266                this.isChunkLit = Chunk.isLit;
    267                this.isInitialized = true;
    268            }
    269        }
    270
    271        /**
    272         * Returns the distance of this chunk renderer to the entity without performing the final normalizing square root,
    273         * for performance reasons.
    274         */
    275        public float distanceToEntitySquared(Entity par1Entity)
    276        {
    277            float var2 = (float)(par1Entity.posX - (double)this.posXPlus);
    278            float var3 = (float)(par1Entity.posY - (double)this.posYPlus);
    279            float var4 = (float)(par1Entity.posZ - (double)this.posZPlus);
    280            return var2 * var2 + var3 * var3 + var4 * var4;
    281        }
    282
    283        /**
    284         * When called this renderer won't draw anymore until its gets initialized again
    285         */
    286        public void setDontDraw()
    287        {
    288            for (int var1 = 0; var1 < 2; ++var1)
    289            {
    290                this.skipRenderPass[var1] = true;
    291            }
    292
    293            this.isInFrustum = false;
    294            this.isInitialized = false;
    295        }
    296
    297        public void stopRendering()
    298        {
    299            this.setDontDraw();
    300            this.worldObj = null;
    301        }
    302
    303        /**
    304         * Takes in the pass the call list is being requested for. Args: renderPass
    305         */
    306        public int getGLCallListForPass(int par1)
    307        {
    308            return !this.isInFrustum ? -1 : (!this.skipRenderPass[par1] ? this.glRenderList + par1 : -1);
    309        }
    310
    311        public void updateInFrustum(ICamera par1ICamera)
    312        {
    313            this.isInFrustum = par1ICamera.isBoundingBoxInFrustum(this.rendererBoundingBox);
    314        }
    315
    316        /**
    317         * Renders the occlusion query GL List
    318         */
    319        public void callOcclusionQueryList()
    320        {
    321            GL11.glCallList(this.glRenderList + 2);
    322        }
    323
    324        /**
    325         * Checks if all render passes are to be skipped. Returns false if the renderer is not initialized
    326         */
    327        public boolean skipAllRenderPasses()
    328        {
    329            return !this.isInitialized ? false : this.skipRenderPass[0] && this.skipRenderPass[1];
    330        }
    331
    332        /**
    333         * Marks the current renderer data as dirty and needing to be updated.
    334         */
    335        public void markDirty()
    336        {
    337            this.needsUpdate = true;
    338        }
    339    }