077e05e0ed
Fluids check for other fluids density before flowing, if their density is higher they can flow into the other fluid, if not they can't.
425 lines
12 KiB
Java
425 lines
12 KiB
Java
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package net.minecraftforge.fluids;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Random;
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import net.minecraft.block.Block;
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import net.minecraft.block.material.Material;
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import net.minecraft.entity.Entity;
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import net.minecraft.util.AxisAlignedBB;
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import net.minecraft.util.Vec3;
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import net.minecraft.world.IBlockAccess;
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import net.minecraft.world.World;
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/**
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* This is a base implementation for Fluid blocks.
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*
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* It is highly recommended that you extend this class or one of the Forge-provided child classes.
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*
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* @author King Lemming, OvermindDL1
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*
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*/
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public abstract class BlockFluidBase extends Block implements IFluidBlock
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{
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protected final static Map<Integer, Boolean> defaultDisplacementIds = new HashMap<Integer, Boolean>();
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static
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{
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defaultDisplacementIds.put(Block.doorWood.blockID, false);
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defaultDisplacementIds.put(Block.doorIron.blockID, false);
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defaultDisplacementIds.put(Block.signPost.blockID, false);
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defaultDisplacementIds.put(Block.signWall.blockID, false);
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defaultDisplacementIds.put(Block.reed.blockID, false);
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}
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protected Map<Integer, Boolean> displacementIds = new HashMap<Integer, Boolean>();
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protected int quantaPerBlock = 8;
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protected float quantaPerBlockFloat = 8F;
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protected int density = 1;
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protected int densityDir = -1;
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protected int tickRate = 20;
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protected int renderPass = 1;
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protected int maxScaledLight = 0;
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protected final String fluidName;
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public BlockFluidBase(int id, Fluid fluid, Material material)
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{
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super(id, material);
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this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
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this.setTickRandomly(true);
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this.disableStats();
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this.fluidName = fluid.getName();
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this.density = fluid.density;
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this.maxScaledLight = fluid.luminosity;
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this.tickRate = fluid.viscosity / 200;
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fluid.setBlockID(id);
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displacementIds.putAll(defaultDisplacementIds);
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}
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public BlockFluidBase setQuantaPerBlock(int quantaPerBlock)
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{
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if (quantaPerBlock > 16 || quantaPerBlock < 1) quantaPerBlock = 8;
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this.quantaPerBlock = quantaPerBlock;
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this.quantaPerBlockFloat = quantaPerBlock;
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return this;
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}
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public BlockFluidBase setDensity(int density)
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{
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if (density == 0) density = 1;
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this.density = density;
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this.densityDir = density > 0 ? -1 : 1;
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return this;
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}
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public BlockFluidBase setTickRate(int tickRate)
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{
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if (tickRate <= 0) tickRate = 20;
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this.tickRate = tickRate;
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return this;
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}
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public BlockFluidBase setRenderPass(int renderPass)
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{
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this.renderPass = renderPass;
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return this;
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}
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public BlockFluidBase setMaxScaledLight(int maxScaledLight)
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{
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this.maxScaledLight = maxScaledLight;
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return this;
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}
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/**
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* Returns true if the block at (x, y, z) is displaceable. Does not displace the block.
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*/
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public boolean canDisplace(IBlockAccess world, int x, int y, int z)
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{
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if (world.isAirBlock(x, y, z)) return true;
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int bId = world.getBlockId(x, y, z);
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if (bId == blockID)
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{
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return false;
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}
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if (displacementIds.containsKey(bId))
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{
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return displacementIds.get(bId);
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}
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Material material = Block.blocksList[bId].blockMaterial;
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if (material.blocksMovement() || material == Material.portal)
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{
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return false;
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}
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if (this.density > getDensity(world, x, y, z))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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/**
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* Attempt to displace the block at (x, y, z), return true if it was displaced.
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*/
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public boolean displaceIfPossible(World world, int x, int y, int z)
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{
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if (world.isAirBlock(x, y, z))
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{
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return true;
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}
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int bId = world.getBlockId(x, y, z);
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if (bId == blockID)
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{
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return false;
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}
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if (displacementIds.containsKey(bId))
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{
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if (displacementIds.get(bId))
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{
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Block.blocksList[bId].dropBlockAsItem(world, x, y, z, world.getBlockMetadata(x, y, z), 0);
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return true;
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}
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return false;
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}
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Material material = Block.blocksList[bId].blockMaterial;
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if (material.blocksMovement() || material == Material.portal)
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{
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return false;
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}
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Block.blocksList[bId].dropBlockAsItem(world, x, y, z, world.getBlockMetadata(x, y, z), 0);
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if (this.density > getDensity(world, x, y, z))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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public abstract int getQuantaValue(IBlockAccess world, int x, int y, int z);
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@Override
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public abstract boolean canCollideCheck(int meta, boolean fullHit);
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public abstract int getMaxRenderHeightMeta();
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/* BLOCK FUNCTIONS */
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@Override
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public void onBlockAdded(World world, int x, int y, int z)
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{
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world.scheduleBlockUpdate(x, y, z, blockID, tickRate);
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}
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@Override
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public void onNeighborBlockChange(World world, int x, int y, int z, int blockId)
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{
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world.scheduleBlockUpdate(x, y, z, blockID, tickRate);
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}
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// Used to prevent updates on chunk generation
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@Override
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public boolean func_82506_l()
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{
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return false;
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}
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@Override
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public boolean getBlocksMovement(IBlockAccess world, int x, int y, int z)
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{
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return true;
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}
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@Override
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public AxisAlignedBB getCollisionBoundingBoxFromPool(World world, int x, int y, int z)
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{
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return null;
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}
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@Override
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public int idDropped(int par1, Random par2Random, int par3)
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{
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return 0;
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}
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@Override
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public int quantityDropped(Random par1Random)
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{
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return 0;
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}
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@Override
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public int tickRate(World world)
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{
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return tickRate;
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}
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@Override
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public void velocityToAddToEntity(World world, int x, int y, int z, Entity entity, Vec3 vec)
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{
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if (densityDir > 0) return;
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Vec3 vec_flow = this.getFlowVector(world, x, y, z);
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vec.xCoord += vec_flow.xCoord * (quantaPerBlock * 4);
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vec.yCoord += vec_flow.yCoord * (quantaPerBlock * 4);
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vec.zCoord += vec_flow.zCoord * (quantaPerBlock * 4);
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}
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@Override
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public int getLightValue(IBlockAccess world, int x, int y, int z)
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{
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if (maxScaledLight == 0)
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{
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return super.getLightValue(world, x, y, z);
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}
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int data = world.getBlockMetadata(x, y, z);
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return (int) (data / quantaPerBlockFloat * maxScaledLight);
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}
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@Override
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public int getRenderType()
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{
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return FluidRegistry.renderIdFluid;
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}
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@Override
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public boolean isOpaqueCube()
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{
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return false;
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}
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@Override
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public boolean renderAsNormalBlock()
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{
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return false;
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}
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@Override
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public float getBlockBrightness(IBlockAccess world, int x, int y, int z)
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{
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float lightThis = world.getLightBrightness(x, y, z);
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float lightUp = world.getLightBrightness(x, y + 1, z);
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return lightThis > lightUp ? lightThis : lightUp;
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}
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@Override
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public int getMixedBrightnessForBlock(IBlockAccess world, int x, int y, int z)
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{
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int lightThis = world.getLightBrightnessForSkyBlocks(x, y, z, 0);
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int lightUp = world.getLightBrightnessForSkyBlocks(x, y + 1, z, 0);
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int lightThisBase = lightThis & 255;
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int lightUpBase = lightUp & 255;
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int lightThisExt = lightThis >> 16 & 255;
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int lightUpExt = lightUp >> 16 & 255;
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return (lightThisBase > lightUpBase ? lightThisBase : lightUpBase) |
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((lightThisExt > lightUpExt ? lightThisExt : lightUpExt) << 16);
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}
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@Override
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public int getRenderBlockPass()
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{
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return renderPass;
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}
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@Override
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public boolean shouldSideBeRendered(IBlockAccess world, int x, int y, int z, int side)
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{
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if (world.getBlockId(x, y, z) != blockID)
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{
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return !world.isBlockOpaqueCube(x, y, z);
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}
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Material mat = world.getBlockMaterial(x, y, z);
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return mat == this.blockMaterial ? false : super.shouldSideBeRendered(world, x, y, z, side);
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}
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/* FLUID FUNCTIONS */
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public static final int getDensity(IBlockAccess world, int x, int y, int z)
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{
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Block block = Block.blocksList[world.getBlockId(x, y, z)];
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if (!(block instanceof BlockFluidBase))
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{
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return Integer.MAX_VALUE;
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}
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return ((BlockFluidBase)block).density;
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}
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public static double getFlowDirection(IBlockAccess world, int x, int y, int z)
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{
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Block block = Block.blocksList[world.getBlockId(x, y, z)];
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if (!(block instanceof BlockFluidBase))
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{
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return -1000.0;
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}
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Vec3 vec = ((BlockFluidBase) block).getFlowVector(world, x, y, z);
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return vec.xCoord == 0.0D && vec.zCoord == 0.0D ? -1000.0D : Math.atan2(vec.zCoord, vec.xCoord) - Math.PI / 2D;
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}
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public final int getQuantaValueBelow(IBlockAccess world, int x, int y, int z, int belowThis)
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{
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int quantaRemaining = getQuantaValue(world, x, y, z);
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if (quantaRemaining >= belowThis)
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{
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return -1;
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}
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return quantaRemaining;
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}
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public final int getQuantaValueAbove(IBlockAccess world, int x, int y, int z, int aboveThis)
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{
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int quantaRemaining = getQuantaValue(world, x, y, z);
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if (quantaRemaining <= aboveThis)
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{
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return -1;
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}
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return quantaRemaining;
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}
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public final float getQuantaPercentage(IBlockAccess world, int x, int y, int z)
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{
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int quantaRemaining = getQuantaValue(world, x, y, z);
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return quantaRemaining / quantaPerBlockFloat;
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}
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public Vec3 getFlowVector(IBlockAccess world, int x, int y, int z)
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{
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Vec3 vec = world.getWorldVec3Pool().getVecFromPool(0.0D, 0.0D, 0.0D);
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int decay = quantaPerBlock - getQuantaValue(world, x, y, z);
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for (int side = 0; side < 4; ++side)
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{
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int x2 = x;
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int z2 = z;
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switch (side)
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{
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case 0: --x2; break;
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case 1: --z2; break;
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case 2: ++x2; break;
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case 3: ++z2; break;
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}
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int otherDecay = quantaPerBlock - getQuantaValue(world, x2, y, z2);
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if (otherDecay >= quantaPerBlock)
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{
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if (!world.getBlockMaterial(x2, y, z2).blocksMovement())
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{
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otherDecay = quantaPerBlock - getQuantaValue(world, x2, y - 1, z2);
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if (otherDecay >= 0)
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{
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int power = otherDecay - (decay - quantaPerBlock);
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vec = vec.addVector((x2 - x) * power, (y - y) * power, (z2 - z) * power);
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}
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}
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}
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else if (otherDecay >= 0)
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{
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int power = otherDecay - decay;
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vec = vec.addVector((x2 - x) * power, (y - y) * power, (z2 - z) * power);
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}
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}
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if (world.getBlockId(x, y + 1, z) == blockID)
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{
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boolean flag =
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isBlockSolid(world, x, y, z - 1, 2) ||
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isBlockSolid(world, x, y, z + 1, 3) ||
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isBlockSolid(world, x - 1, y, z, 4) ||
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isBlockSolid(world, x + 1, y, z, 5) ||
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isBlockSolid(world, x, y + 1, z - 1, 2) ||
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isBlockSolid(world, x, y + 1, z + 1, 3) ||
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isBlockSolid(world, x - 1, y + 1, z, 4) ||
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isBlockSolid(world, x + 1, y + 1, z, 5);
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if (flag)
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{
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vec = vec.normalize().addVector(0.0D, -6.0D, 0.0D);
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}
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}
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vec = vec.normalize();
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return vec;
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}
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/* IFluidBlock */
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@Override
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public Fluid getFluid()
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{
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return FluidRegistry.getFluid(fluidName);
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}
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}
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