416 lines
12 KiB
Java
416 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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protected final static Map<Integer, Boolean> defaultDisplacementIds = new HashMap<Integer, Boolean>();
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static {
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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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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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if (quantaPerBlock > 16 || quantaPerBlock < 1) {
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quantaPerBlock = 8;
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}
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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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if (density == 0) {
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density = 1;
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}
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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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if (tickRate <= 0) {
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tickRate = 20;
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}
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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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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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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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int bId = world.getBlockId(x, y, z);
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if (bId == 0) {
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return true;
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}
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if (bId == blockID) {
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return false;
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}
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if (displacementIds.containsKey(bId)) {
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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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return false;
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}
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return true;
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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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int bId = world.getBlockId(x, y, z);
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if (bId == 0) {
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return true;
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}
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if (bId == blockID) {
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return false;
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}
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if (displacementIds.containsKey(bId)) {
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if (displacementIds.get(bId)) {
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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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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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return true;
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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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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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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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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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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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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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return 0;
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}
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@Override
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public int quantityDropped(Random par1Random) {
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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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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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if (densityDir > 0) {
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return;
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}
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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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if (maxScaledLight == 0) {
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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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return FluidRegistry.renderIdFluid;
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}
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@Override
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public boolean isOpaqueCube() {
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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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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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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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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) | (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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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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if (world.getBlockId(x, y, z) != blockID) {
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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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Block block = Block.blocksList[world.getBlockId(x, y, z)];
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if (!(block instanceof BlockFluidBase)) {
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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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Block block = Block.blocksList[world.getBlockId(x, y, z)];
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if (!(Block.blocksList[world.getBlockId(x, y, z)] instanceof BlockFluidBase)) {
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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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int quantaRemaining = getQuantaValue(world, x, y, z);
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if (quantaRemaining >= belowThis) {
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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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int quantaRemaining = getQuantaValue(world, x, y, z);
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if (quantaRemaining <= aboveThis) {
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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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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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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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int x2 = x;
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int z2 = z;
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switch (side) {
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case 0:
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--x2;
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break;
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case 1:
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--z2;
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break;
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case 2:
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++x2;
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break;
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case 3:
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++z2;
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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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if (!world.getBlockMaterial(x2, y, z2).blocksMovement()) {
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otherDecay = quantaPerBlock - getQuantaValue(world, x2, y - 1, z2);
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if (otherDecay >= 0) {
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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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} else if (otherDecay >= 0) {
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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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boolean flag = false;
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if (this.isBlockSolid(world, x, y, z - 1, 2)) {
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flag = true;
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} else if (this.isBlockSolid(world, x, y, z + 1, 3)) {
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flag = true;
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} else if (this.isBlockSolid(world, x - 1, y, z, 4)) {
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flag = true;
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} else if (this.isBlockSolid(world, x + 1, y, z, 5)) {
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flag = true;
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} else if (this.isBlockSolid(world, x, y + 1, z - 1, 2)) {
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flag = true;
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} else if (this.isBlockSolid(world, x, y + 1, z + 1, 3)) {
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flag = true;
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} else if (this.isBlockSolid(world, x - 1, y + 1, z, 4)) {
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flag = true;
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} else if (this.isBlockSolid(world, x + 1, y + 1, z, 5)) {
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flag = true;
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}
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if (flag) {
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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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return FluidRegistry.getFluid(fluidName);
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}
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}
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