Minecraft Forums

package net.minecraft.src;
import java.util.Random;
public class BlockFlowingLiquid extends BlockFluid
{
int numAdjacentSources;
boolean isOptimalFlowDirection[];
int flowCost[];
protected BlockFlowingLiquid(int par1, Material par2Material)
{
super(par1, par2Material);
numAdjacentSources = 0;
isOptimalFlowDirection = new boolean[4];
flowCost = new int[4];
}
/**
* Updates the flow for the BlockFlowing object.
*/
private void updateFlow(World par1World, int par2, int par3, int par4)
{
int i = par1World.getBlockMetadata(par2, par3, par4);
par1World.setBlockAndMetadata(par2, par3, par4, blockID + 1, i);
par1World.markBlocksDirty(par2, par3, par4, par2, par3, par4);
par1World.markBlockNeedsUpdate(par2, par3, par4);
}
public boolean getBlocksMovement(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
{
return blockMaterial != Material.lava;
}
/**
* Ticks the block if it's been scheduled
*/
public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
{
int i = getFlowDecay(par1World, par2, par3, par4);
byte byte0 = 1;
if (blockMaterial == Material.lava && !par1World.worldProvider.isHellWorld)
{
byte0 = 2;
}
boolean flag = true;
if (i > 0)
{
int j = -100;
numAdjacentSources = 0;
j = getSmallestFlowDecay(par1World, par2 - 1, par3, par4, j);
j = getSmallestFlowDecay(par1World, par2 + 1, par3, par4, j);
j = getSmallestFlowDecay(par1World, par2, par3, par4 - 1, j);
j = getSmallestFlowDecay(par1World, par2, par3, par4 + 1, j);
int k = j + byte0;
if (k >= 8 || j < 0)
{
k = -1;
}
if (getFlowDecay(par1World, par2, par3 + 1, par4) >= 0)
{
int i1 = getFlowDecay(par1World, par2, par3 + 1, par4);
if (i1 >= 8)
{
k = i1;
}
else
{
k = i1 + 8;
}
}
if (numAdjacentSources >= 2 && blockMaterial == Material.water)
{
if (par1World.getBlockMaterial(par2, par3 - 1, par4).isSolid())
{
k = 0;
}
else if (par1World.getBlockMaterial(par2, par3 - 1, par4) == blockMaterial && par1World.getBlockMetadata(par2, par3, par4) == 0)
{
k = 0;
}
}
if (blockMaterial == Material.lava && i < 8 && k < 8 && k > i && par5Random.nextInt(4) != 0)
{
k = i;
flag = false;
}
if (k != i)
{
i = k;
if (i < 0)
{
par1World.setBlockWithNotify(par2, par3, par4, 0);
}
else
{
par1World.setBlockMetadataWithNotify(par2, par3, par4, i);
par1World.scheduleBlockUpdate(par2, par3, par4, blockID, tickRate());
par1World.notifyBlocksOfNeighborChange(par2, par3, par4, blockID);
}
}
else if (flag)
{
updateFlow(par1World, par2, par3, par4);
}
}
else
{
updateFlow(par1World, par2, par3, par4);
}
if (liquidCanDisplaceBlock(par1World, par2, par3 - 1, par4))
{
if (blockMaterial == Material.lava && par1World.getBlockMaterial(par2, par3 - 1, par4) == Material.water)
{
par1World.setBlockWithNotify(par2, par3 - 1, par4, Block.stone.blockID);
triggerLavaMixEffects(par1World, par2, par3 - 1, par4);
return;
}
if (i >= 8)
{
par1World.setBlockAndMetadataWithNotify(par2, par3 - 1, par4, blockID, i);
}
else
{
par1World.setBlockAndMetadataWithNotify(par2, par3 - 1, par4, blockID, i + 8);
}
}
else if (i >= 0 && (i == 0 || blockBlocksFlow(par1World, par2, par3 - 1, par4)))
{
boolean aflag[] = getOptimalFlowDirections(par1World, par2, par3, par4);
int l = i + byte0;
if (i >= 8)
{
l = 1;
}
if (l >= 8)
{
return;
}
if (aflag[0])
{
flowIntoBlock(par1World, par2 - 1, par3, par4, l);
}
if (aflag[1])
{
flowIntoBlock(par1World, par2 + 1, par3, par4, l);
}
if (aflag[2])
{
flowIntoBlock(par1World, par2, par3, par4 - 1, l);
}
if (aflag[3])
{
flowIntoBlock(par1World, par2, par3, par4 + 1, l);
}
}
}
/**
* flowIntoBlock(World world, int x, int y, int z, int newFlowDecay) - Flows into the block at the coordinates and
* changes the block type to the liquid.
*/
private void flowIntoBlock(World par1World, int par2, int par3, int par4, int par5)
{
if (liquidCanDisplaceBlock(par1World, par2, par3, par4))
{
int i = par1World.getBlockId(par2, par3, par4);
if (i > 0)
{
if (blockMaterial == Material.lava)
{
triggerLavaMixEffects(par1World, par2, par3, par4);
}
else
{
Block.blocksList[i].dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
}
}
par1World.setBlockAndMetadataWithNotify(par2, par3, par4, blockID, par5);
}
}
/**
* calculateFlowCost(World world, int x, int y, int z, int accumulatedCost, int previousDirectionOfFlow) - Used to
* determine the path of least resistance, this method returns the lowest possible flow cost for the direction of
* flow indicated. Each necessary horizontal flow adds to the flow cost.
*/
private int calculateFlowCost(World par1World, int par2, int par3, int par4, int par5, int par6)
{
int i = 1000;
for (int j = 0; j < 4; j++)
{
if (j == 0 && par6 == 1 || j == 1 && par6 == 0 || j == 2 && par6 == 3 || j == 3 && par6 == 2)
{
continue;
}
int k = par2;
int l = par3;
int i1 = par4;
if (j == 0)
{
k--;
}
if (j == 1)
{
k++;
}
if (j == 2)
{
i1--;
}
if (j == 3)
{
i1++;
}
if (blockBlocksFlow(par1World, k, l, i1) || par1World.getBlockMaterial(k, l, i1) == blockMaterial && par1World.getBlockMetadata(k, l, i1) == 0)
{
continue;
}
if (!blockBlocksFlow(par1World, k, l - 1, i1))
{
return par5;
}
if (par5 >= 4)
{
continue;
}
int j1 = calculateFlowCost(par1World, k, l, i1, par5 + 1, j);
if (j1 < i)
{
i = j1;
}
}
return i;
}
/**
* Returns a boolean array indicating which flow directions are optimal based on each direction's calculated flow
* cost. Each array index corresponds to one of the four cardinal directions. A value of true indicates the
* direction is optimal.
*/
private boolean[] getOptimalFlowDirections(World par1World, int par2, int par3, int par4)
{
for (int i = 0; i < 4; i++)
{
flowCost[i] = 1000;
int k = par2;
int j1 = par3;
int k1 = par4;
if (i == 0)
{
k--;
}
if (i == 1)
{
k++;
}
if (i == 2)
{
k1--;
}
if (i == 3)
{
k1++;
}
if (blockBlocksFlow(par1World, k, j1, k1) || par1World.getBlockMaterial(k, j1, k1) == blockMaterial && par1World.getBlockMetadata(k, j1, k1) == 0)
{
continue;
}
if (!blockBlocksFlow(par1World, k, j1 - 1, k1))
{
flowCost[i] = 0;
}
else
{
flowCost[i] = calculateFlowCost(par1World, k, j1, k1, 1, i);
}
}
int j = flowCost[0];
for (int l = 1; l < 4; l++)
{
if (flowCost[l] < j)
{
j = flowCost[l];
}
}
for (int i1 = 0; i1 < 4; i1++)
{
isOptimalFlowDirection[i1] = flowCost[i1] == j;
}
return isOptimalFlowDirection;
}
/**
* Returns true if block at coords blocks fluids
*/
private boolean blockBlocksFlow(World par1World, int par2, int par3, int par4)
{
int i = par1World.getBlockId(par2, par3, par4);
if (i == Block.doorWood.blockID || i == Block.doorSteel.blockID || i == Block.signPost.blockID || i == Block.ladder.blockID || i == Block.reed.blockID)
{
return true;
}
if (i == 0)
{
return false;
}
Material material = Block.blocksList[i].blockMaterial;
if (material == Material.portal)
{
return true;
}
return material.blocksMovement();
}
/**
* getSmallestFlowDecay(World world, intx, int y, int z, int currentSmallestFlowDecay) - Looks up the flow decay at
* the coordinates given and returns the smaller of this value or the provided currentSmallestFlowDecay. If one
* value is valid and the other isn't, the valid value will be returned. Valid values are >= 0. Flow decay is the
* amount that a liquid has dissipated. 0 indicates a source block.
*/
protected int getSmallestFlowDecay(World par1World, int par2, int par3, int par4, int par5)
{
int i = getFlowDecay(par1World, par2, par3, par4);
if (i < 0)
{
return par5;
}
if (i == 0)
{
numAdjacentSources++;
}
if (i >= 8)
{
i = 0;
}
return par5 >= 0 && i >= par5 ? par5 : i;
}
/**
* Returns true if the block at the coordinates can be displaced by the liquid.
*/
private boolean liquidCanDisplaceBlock(World par1World, int par2, int par3, int par4)
{
Material material = par1World.getBlockMaterial(par2, par3, par4);
if (material == blockMaterial)
{
return false;
}
if (material == Material.lava)
{
return false;
}
else
{
return !blockBlocksFlow(par1World, par2, par3, par4);
}
}
/**
* Called whenever the block is added into the world. Args: world, x, y, z
*/
public void onBlockAdded(World par1World, int par2, int par3, int par4)
{
super.onBlockAdded(par1World, par2, par3, par4);
if (par1World.getBlockId(par2, par3, par4) == blockID)
{
par1World.scheduleBlockUpdate(par2, par3, par4, blockID, tickRate());
}
}
}

package net.minecraft.src;
import java.util.Random;
public class BlockLiquidStationary extends BlockFluid
{
protected BlockLiquidStationary(int par1, Material par2Material)
{
super(par1, par2Material);
setTickRandomly(false);
if (par2Material == Material.lava)
{
setTickRandomly(true);
}
}
public boolean getBlocksMovement(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
{
return blockMaterial != Material.lava;
}
public int getBlockColor()
{
return 0xb70000;
}
/**
* Returns a integer with hex for 0xrrggbb with this color multiplied against the blocks color. Note only called
* when first determining what to render.
*/

/**
* Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
* their own) Args: x, y, z, neighbor blockID
*/
public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
{
super.onNeighborBlockChange(par1World, par2, par3, par4, par5);
if (par1World.getBlockId(par2, par3, par4) == blockID)
{
setNotStationary(par1World, par2, par3, par4);
}
}
/**
* Changes the block ID to that of an updating fluid.
*/
private void setNotStationary(World par1World, int par2, int par3, int par4)
{
int i = par1World.getBlockMetadata(par2, par3, par4);
par1World.editingBlocks = true;
par1World.setBlockAndMetadata(par2, par3, par4, blockID - 1, i);
par1World.markBlocksDirty(par2, par3, par4, par2, par3, par4);
par1World.scheduleBlockUpdate(par2, par3, par4, blockID - 1, tickRate());
par1World.editingBlocks = false;
}
/**
* Ticks the block if it's been scheduled
*/
public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
{
if (blockMaterial == Material.lava)
{
int i = par5Random.nextInt(3);
for (int j = 0; j < i; j++)
{
par2 += par5Random.nextInt(3) - 1;
par3++;
par4 += par5Random.nextInt(3) - 1;
int l = par1World.getBlockId(par2, par3, par4);
if (l == 0)
{
if (isFlammable(par1World, par2 - 1, par3, par4) || isFlammable(par1World, par2 + 1, par3, par4) || isFlammable(par1World, par2, par3, par4 - 1) || isFlammable(par1World, par2, par3, par4 + 1) || isFlammable(par1World, par2, par3 - 1, par4) || isFlammable(par1World, par2, par3 + 1, par4))
{
par1World.setBlockWithNotify(par2, par3, par4, Block.fire.blockID);
return;
}
continue;
}
if (Block.blocksList[l].blockMaterial.blocksMovement())
{
return;
}
}
if (i == 0)
{
int k = par2;
int i1 = par4;
for (int j1 = 0; j1 < 3; j1++)
{
par2 = (k + par5Random.nextInt(3)) - 1;
par4 = (i1 + par5Random.nextInt(3)) - 1;
if (par1World.isAirBlock(par2, par3 + 1, par4) && isFlammable(par1World, par2, par3, par4))
{
par1World.setBlockWithNotify(par2, par3 + 1, par4, Block.fire.blockID);
}
}
}
}
}
/**
* Checks to see if the block is flammable.
*/
private boolean isFlammable(World par1World, int par2, int par3, int par4)
{
return par1World.getBlockMaterial(par2, par3, par4).getCanBurn();
}
}

package net.minecraft.src;
import java.util.Random;

public class mod_water extends BaseMod
{

//This declares a new block called siminiteOre, which is a block of type "siminiteOre", has a data value of 98,
//a hardness of 0.1, a resistance to TNT of 0, and will give off light
public static final Block LiquidStationary=
new BlockFlowing(136, Material.water).setHardness(100F).setLightOpacity(3).setBlockName("LiquidStationary").disableStats().setRequiresSelfNotify();
public static final Block FlowingLiquid=
new BlockFlowing(137, Material.water).setHardness(100F).setLightOpacity(3).setBlockName("FlowingLiquid").disableStats().setRequiresSelfNotify();

public mod_water()
{

//This registers our new block
ModLoader.registerBlock(LiquidStationary);
ModLoader.registerBlock(LiquidStationary);

//This overrides the texture pack and sets the block's texture to siminiteOre.png
LiquidStationary.blockIndexInTexture = ModLoader.addOverride("/terrain.png", "/LiquidStationary.png");
FlowingLiquid.blockIndexInTexture = ModLoader.addOverride("/terrain.png", "/FlowingLiquid.png");

//This adds the in game name to our block
ModLoader.addName(LiquidStationary, "Red Water");
ModLoader.addName(FlowingLiquid, "F Red Water");

//This adds the smelting recipe to the block, so that you can smelt it in a furnace
ModLoader.addRecipe(new ItemStack(LiquidStationary, 15), new Object[]{
"***", Character.valueOf('*'), Block.dirt
});
}

public String getVersion()
{
return "3.14159265";
}
public void load()
{
}
}