Entité Block
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[23:21:21] [Client thread/INFO] [STDOUT]: [com.maxyfactory.mod.entity.EntityConvoyingBlock:onUpdate:89]: null
Oui donc c’est bien ça qui cause le npe. -
Avec if (this.fallTile != null), ça fonctionne mieux : il n’y a plus de crash mais le block est invisible, il n’y a que son ombre.
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Donc faut chercher pourquoi il est null car il ne devrait pas l’être.
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Il n’est pas null quand je supprime ça: EntityRegistry.registerModEntity(EntityConvoyingBlock.class, “convoyingBlock”, entityID, ModMaxyFactory.instance, 64, 1, true);
Mais dans ce cas, le doRender() de la class du rendu que j’utilise n’est pas appelé.
Ce n’est pas un problème de mon rendu car c’est une copie de celui du sable donc je ne sais pas d’où ça vient.EDIT : C’est bon, j’ai trouvé pourquoi fallTile était nul : je n’avais pas mis static.
Le rendu fonctionne maintenant mais je voudrais juste savoir a quoi sert static. -
Une variable static n’a qu’une unique instance.
Je ne suis pas sûr que mettre static soit la bonne solution. Envoies ton code complet. -
En effet, static n’ est pas trés bon, si je met deux blocks différents sur des tapis roulants, le premiers devient le même block que le second.
L’Entité :
public class EntityConvoyingBlock extends EntityFallingBlock { private IBlockState fallTile; public int fallTime; public boolean shouldDropItem = true; private boolean field_145808_f; private boolean hurtEntities; private int fallHurtMax = 40; private float fallHurtAmount = 2.0F; public NBTTagCompound tileEntityData; public EntityConvoyingBlock(World worldIn) { super(worldIn); } public EntityConvoyingBlock(World worldIn, double x, double y, double z, IBlockState ConvoyingBlockState) { super(worldIn); this.fallTile = ConvoyingBlockState; this.preventEntitySpawning = true; this.setSize(0.98F, 0.98F); this.setPosition(x, y, z); this.motionX = 0.0D; this.motionY = 0.0D; this.motionZ = 0.0D; this.prevPosX = x; this.prevPosY = y; this.prevPosZ = z; } /** * returns if this entity triggers Block.onEntityWalking on the blocks they walk on. used for spiders and wolves to * prevent them from trampling crops */ protected boolean canTriggerWalking() { return false; } protected void entityInit() {} /** * Returns true if other Entities should be prevented from moving through this Entity. */ public boolean canBeCollidedWith() { return !this.isDead; } /** * Called to update the entity's position/logic. */ public void onUpdate() { System.out.println(fallTile); if (this.fallTile != null) { Block block = this.fallTile.getBlock(); if (block.getMaterial() == Material.air) { this.setDead(); } else { this.prevPosX = this.posX; this.prevPosY = this.posY; this.prevPosZ = this.posZ; BlockPos blockpos; if (this.fallTime++ == 0) { blockpos = new BlockPos(this); if (this.worldObj.getBlockState(blockpos).getBlock() == block) { this.worldObj.setBlockToAir(blockpos); } else if (!this.worldObj.isRemote) { this.setDead(); return; } } this.motionY -= 0.03999999910593033D; this.moveEntity(this.motionX, this.motionY, this.motionZ); this.motionY *= 0.98D; if (this.fallTime > 10 ) { this.motionX *= 0.5D; this.motionZ *= 0.5D; } if (!this.worldObj.isRemote) { blockpos = new BlockPos(this); if (this.fallTime > 10 && this.onGround) { this.motionX *= 0.699999988079071D; this.motionZ *= 0.699999988079071D; this.motionY *= -0.5D; if (this.worldObj.getBlockState(blockpos).getBlock() != Blocks.piston_extension) { this.setDead(); if (!this.field_145808_f && this.worldObj.canBlockBePlaced(block, blockpos, true, EnumFacing.UP, (Entity)null, (ItemStack)null) && this.worldObj.setBlockState(blockpos, this.fallTile, 3)) { if (block instanceof BlockConvoyorBelt) { ((BlockConvoyorBelt)block).onEndFalling(this.worldObj, blockpos); } if (this.tileEntityData != null && block instanceof ITileEntityProvider) { TileEntity tileentity = this.worldObj.getTileEntity(blockpos); if (tileentity != null) { NBTTagCompound nbttagcompound = new NBTTagCompound(); tileentity.writeToNBT(nbttagcompound); Iterator iterator = this.tileEntityData.getKeySet().iterator(); while (iterator.hasNext()) { String s = (String)iterator.next(); NBTBase nbtbase = this.tileEntityData.getTag(s); if (!s.equals("x") && !s.equals("y") && !s.equals("z")) { nbttagcompound.setTag(s, nbtbase.copy()); } } tileentity.readFromNBT(nbttagcompound); tileentity.markDirty(); } } } else if (this.shouldDropItem && !this.field_145808_f && this.worldObj.getGameRules().getGameRuleBooleanValue("doTileDrops")) { this.entityDropItem(new ItemStack(block, 1, block.damageDropped(this.fallTile)), 0.0F); } } } else if (this.fallTime > 100 && !this.worldObj.isRemote && (blockpos.getY() < 1 || blockpos.getY() > 256) || this.fallTime > 600) { if (this.shouldDropItem && this.worldObj.getGameRules().getGameRuleBooleanValue("doTileDrops")) { this.entityDropItem(new ItemStack(block, 1, block.damageDropped(this.fallTile)), 0.0F); } this.setDead(); } } } } } public void fall(float distance, float damageMultiplier) { Block block = this.fallTile.getBlock(); if (this.hurtEntities) { int i = MathHelper.ceiling_float_int(distance - 1.0F); if (i > 0) { ArrayList arraylist = Lists.newArrayList(this.worldObj.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox())); boolean flag = block == Blocks.anvil; DamageSource damagesource = flag ? DamageSource.anvil : DamageSource.fallingBlock; Iterator iterator = arraylist.iterator(); while (iterator.hasNext()) { Entity entity = (Entity)iterator.next(); entity.attackEntityFrom(damagesource, (float)Math.min(MathHelper.floor_float((float)i * this.fallHurtAmount), this.fallHurtMax)); } if (flag && (double)this.rand.nextFloat() < 0.05000000074505806D + (double)i * 0.05D) { int j = ((Integer)this.fallTile.getValue(BlockAnvil.DAMAGE)).intValue(); ++j; if (j > 2) { this.field_145808_f = true; } else { this.fallTile = this.fallTile.withProperty(BlockAnvil.DAMAGE, Integer.valueOf(j)); } } } } } /** * (abstract) Protected helper method to write subclass entity data to NBT. */ protected void writeEntityToNBT(NBTTagCompound tagCompound) { Block block = this.fallTile != null ? this.fallTile.getBlock() : Blocks.air; ResourceLocation resourcelocation = (ResourceLocation)Block.blockRegistry.getNameForObject(block); tagCompound.setString("Block", resourcelocation == null ? "" : resourcelocation.toString()); tagCompound.setByte("Data", (byte)block.getMetaFromState(this.fallTile)); tagCompound.setByte("Time", (byte)this.fallTime); tagCompound.setBoolean("DropItem", this.shouldDropItem); tagCompound.setBoolean("HurtEntities", this.hurtEntities); tagCompound.setFloat("FallHurtAmount", this.fallHurtAmount); tagCompound.setInteger("FallHurtMax", this.fallHurtMax); if (this.tileEntityData != null) { tagCompound.setTag("TileEntityData", this.tileEntityData); } } /** * (abstract) Protected helper method to read subclass entity data from NBT. */ protected void readEntityFromNBT(NBTTagCompound tagCompund) { int i = tagCompund.getByte("Data") & 255; if (tagCompund.hasKey("Block", 8)) { this.fallTile = Block.getBlockFromName(tagCompund.getString("Block")).getStateFromMeta(i); } else if (tagCompund.hasKey("TileID", 99)) { this.fallTile = Block.getBlockById(tagCompund.getInteger("TileID")).getStateFromMeta(i); } else { this.fallTile = Block.getBlockById(tagCompund.getByte("Tile") & 255).getStateFromMeta(i); } this.fallTime = tagCompund.getByte("Time") & 255; Block block = this.fallTile.getBlock(); if (tagCompund.hasKey("HurtEntities", 99)) { this.hurtEntities = tagCompund.getBoolean("HurtEntities"); this.fallHurtAmount = tagCompund.getFloat("FallHurtAmount"); this.fallHurtMax = tagCompund.getInteger("FallHurtMax"); } else if (block == Blocks.anvil) { this.hurtEntities = true; } if (tagCompund.hasKey("DropItem", 99)) { this.shouldDropItem = tagCompund.getBoolean("DropItem"); } if (tagCompund.hasKey("TileEntityData", 10)) { this.tileEntityData = tagCompund.getCompoundTag("TileEntityData"); } if (block == null || block.getMaterial() == Material.air) { this.fallTile = Blocks.sand.getDefaultState(); } } public void setHurtEntities(boolean p_145806_1_) { this.hurtEntities = p_145806_1_; } public void addEntityCrashInfo(CrashReportCategory category) { super.addEntityCrashInfo(category); if (this.fallTile != null) { Block block = this.fallTile.getBlock(); category.addCrashSection("Immitating block ID", Integer.valueOf(Block.getIdFromBlock(block))); category.addCrashSection("Immitating block data", Integer.valueOf(block.getMetaFromState(this.fallTile))); } } @SideOnly(Side.CLIENT) public World getWorldObj() { return this.worldObj; } /** * Return whether this entity should be rendered as on fire. */ @SideOnly(Side.CLIENT) public boolean canRenderOnFire() { return false; } public IBlockState getBlock() { return this.fallTile; } }Le Render :
@SideOnly(Side.CLIENT) public class RenderConvoyingBlock extends Render { public RenderConvoyingBlock(RenderManager p_i46177_1_) { super(p_i46177_1_); this.shadowSize = 0.5F; } public void doRender(EntityConvoyingBlock p_180557_1_, double p_180557_2_, double p_180557_4_, double p_180557_6_, float p_180557_8_, float p_180557_9_) { System.out.println("doRender ConvoyingBlock"); if (p_180557_1_.getBlock() != null) { this.bindTexture(TextureMap.locationBlocksTexture); IBlockState iblockstate = p_180557_1_.getBlock(); Block block = iblockstate.getBlock(); BlockPos blockpos = new BlockPos(p_180557_1_); World world = p_180557_1_.getWorldObj(); if (iblockstate != world.getBlockState(blockpos) && block.getRenderType() != -1) { if (block.getRenderType() == 3) { GlStateManager.pushMatrix(); GlStateManager.translate((float)p_180557_2_, (float)p_180557_4_, (float)p_180557_6_); GlStateManager.disableLighting(); Tessellator tessellator = Tessellator.getInstance(); WorldRenderer worldrenderer = tessellator.getWorldRenderer(); worldrenderer.startDrawingQuads(); worldrenderer.setVertexFormat(DefaultVertexFormats.BLOCK); int i = blockpos.getX(); int j = blockpos.getY(); int k = blockpos.getZ(); worldrenderer.setTranslation((double)((float)(-i) - 0.5F), (double)(-j), (double)((float)(-k) - 0.5F)); BlockRendererDispatcher blockrendererdispatcher = Minecraft.getMinecraft().getBlockRendererDispatcher(); IBakedModel ibakedmodel = blockrendererdispatcher.getModelFromBlockState(iblockstate, world, (BlockPos)null); blockrendererdispatcher.getBlockModelRenderer().renderModel(world, ibakedmodel, iblockstate, blockpos, worldrenderer, false); worldrenderer.setTranslation(0.0D, 0.0D, 0.0D); tessellator.draw(); GlStateManager.enableLighting(); GlStateManager.popMatrix(); super.doRender(p_180557_1_, p_180557_2_, p_180557_4_, p_180557_6_, p_180557_8_, p_180557_9_); } } } } /** * Returns the location of an entity's texture. Doesn't seem to be called unless you call Render.bindEntityTexture. */ protected ResourceLocation getEntityTexture(EntityConvoyingBlock entity) { return TextureMap.locationBlocksTexture; } /** * Returns the location of an entity's texture. Doesn't seem to be called unless you call Render.bindEntityTexture. */ protected ResourceLocation getEntityTexture(Entity entity) { return this.getEntityTexture((EntityConvoyingBlock)entity); } /** * Actually renders the given argument. This is a synthetic bridge method, always casting down its argument and then * handing it off to a worker function which does the actual work. In all probabilty, the class Render is generic * (Render<t extends="" entity="">) and this method has signature public void func_76986_a(T entity, double d, double d1, * double d2, float f, float f1). But JAD is pre 1.5 so doe */ public void doRender(Entity entity, double x, double y, double z, float p_76986_8_, float partialTicks) { System.out.println("doRender ConvoyingBlock-"); this.doRender((EntityConvoyingBlock)entity, x, y, z, p_76986_8_, partialTicks); } } ```</t> -
Tu enregistre comment ton rendu ? Car franchement je ne vois pas pourquoi fallTile est null.
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Petite remarque surement intéressante:
j’ai mis System.out.println(fallTile+" : "+this); au lieu de System.out.println(fallTile); et sa me met de manière alternée:
[16:12:37] [Server thread/INFO] [STDOUT]: [com.maxyfactory.mod.entity.EntityConvoyingBlock:onUpdate:88]: minecraft:grass[snowy=false] : EntityConvoyingBlock[‘entity.maxyfactory.convoyingBlock.name’/166432, l=‘New World’, x=-635,50, y=5,00, z=-974,50]
et
[16:12:37] [Client thread/INFO] [STDOUT]: [com.maxyfactory.mod.entity.EntityConvoyingBlock:onUpdate:88]: null : EntityConvoyingBlock[‘entity.maxyfactory.convoyingBlock.name’/166432, l=‘MpServer’, x=-635,50, y=5,00, z=-974,50]
quand fallTile est null, l = MpServeur alors que quand fallTile est correcte, l = New Wold (le nom de mon monde)Le Proxy Client :
public class ClientProxy extends CommonProxy{ @Override public void registerRenders() { ItemMod.registerRenders(); BlockMod.registerRenders(); RenderingRegistry.registerEntityRenderingHandler(EntityConvoyingBlock.class, new RenderConvoyingBlock(Minecraft.getMinecraft().getRenderManager())); } } -
Ah surement car c’est null côté client.
Problème de synchro du-coup.
Utilises l’interface IAdditionnalEntityData pour synchroniser le bloc. -
Comment fait-on pour l’utiliser ?
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Tu ajoutés implements IAdditionalEntityData après la déclaration de ta classe (il me semble que la classe s’appelle comme ça a vérifier) puis tu ajoutés les deux méthodes qu’il te demander d’implémenter. Elles s’utilisent comme celle d’un paquet
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Eclipse ne trouve pas IAdditionalEntityData, tu est sûr que c’est le bon mon ?
(Désolé d’avoir été si long) -
Non je ne suis pas sûr et je l’ai même précisé dans mon message.
C’est IEntityAdditionalSpawnData -
J’ai essayé de faire fonctionner IEntityAdditionalSpawnData mais je n’y arrives pas, je n’ai jamais utilisé de paquet.
J’ai n’arrive pas a écrire un IBlockState dans le ByteBuf, voici un essai que j’ai fait :@Override public void writeSpawnData(ByteBuf buffer) { Object[] arr = this.fallTile.getProperties().values().toArray(); for (int i = 0 ; i <= arr.length; i++) { Object obj = arr*; buffer.writeByte((Integer) obj); } } @Override public void readSpawnData(ByteBuf additionalData) { byte[] b = additionalData.array(); for (int i = 0 ; i <= b.length; i++) { this.fallTile.withProperty(additionalData.getByte(i) /*ici, je ne sais pas quoi mettre*/, additionalData.getByte(i)); } }Puis-je avoir de l’aide, s’il vous plais.
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Il faut envoyer l’id du bloc et le metadata.
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Merci beaucoup, ça fonctionne maintenant voici le code ( plus simple au final ) :
@Override public void writeSpawnData(ByteBuf buffer) { int ID = Block.getIdFromBlock(this.fallTile.getBlock()); int meta = this.fallTile.getBlock().getMetaFromState(this.fallTile); buffer.writeInt(ID); buffer.writeInt(meta); } @Override public void readSpawnData(ByteBuf additionalData) { int ID = additionalData.readInt(); int meta = additionalData.readInt(); this.fallTile = Block.getBlockById(ID).getStateFromMeta(meta); }Petit screen pour montrer la beauté de mon travail
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