提供: Minecraft Modding Wiki
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ModLoaderを前提としています。
ソース解説
mod_hogeliquidクラスを作成
package net.minecraft.src;
public class mod_hogeliquid extends BaseMod
{
/*
* 動く部分のBlockIDと、水源部分のBlockIDの２つで１つの液体となります。
*/
public static Block hogeLiquidMoving;
public static Block hogeLiquidStill;
public mod_hogeliquid()
{
}
public String getVersion()
{
return "1.1";
}
public void load()
{
/*
* 長々と定義していますがやってることは単純です。
* BlockFlowingHogeクラスでBlockIDを100で設定し、水と同じ動作をさせます。
* 全く新しいものを作るのであれば、Materialを基本に別クラスから取得させる。
* setHardnessで100Fを設定（壊すものじゃないので）
* setLightOpacityは溶岩のように光るかどうかをintで設定します。
*/
hogeLiquidMoving = new BlockFlowingHoge(100, Material.water);
hogeLiquidMoving.setHardness(100F);
hogeLiquidMoving.setLightOpacity(3);
hogeLiquidMoving.setBlockName("Hoge Moving");
hogeLiquidMoving.disableStats();
hogeLiquidMoving.setRequiresSelfNotify();
/*
* 上とおなじ。
*/
hogeLiquidStill = new BlockStationaryHoge(101, Material.water);
hogeLiquidStill.setHardness(100F);
hogeLiquidStill.setLightOpacity(3);
hogeLiquidStill.setBlockName("Hoge Still");
hogeLiquidStill.disableStats();
hogeLiquidStill.setRequiresSelfNotify();
/*
* ブロックとして登録する。
*/
ModLoader.RegisterBlock(hogeLiquidMoving);
ModLoader.RegisterBlock(hogeLiquidStill);
/*
* 表示名を設定する。
*/
ModLoader.AddName(hogeLiquidMoving, "Hoge Moving");
ModLoader.AddName(hogeLiquidStill, "Hoge Still");
}
}
BlockFlowingHogeクラスを作成
長々と書きますがやってることは単純です。 既存の「BlockFlowing」クラスをコピペし、クラス名に依存してる部分修正。
package net.minecraft.src;
import java.util.Random;
public class BlockFlowingHoge extends BlockFluid
{
int numAdjacentSources;
boolean isOptimalFlowDirection[];
int flowCost[];
protected BlockFlowingHoge(int i, Material material)
{
super(i, material);
numAdjacentSources = 0;
isOptimalFlowDirection = new boolean[4];
flowCost = new int[4];
}
private void updateFlow(World world, int i, int j, int k)
{
int l = world.getBlockMetadata(i, j, k);
world.setBlockAndMetadata(i, j, k, blockID + 1, l);
world.markBlocksDirty(i, j, k, i, j, k);
world.markBlockNeedsUpdate(i, j, k);
}
public void updateTick(World world, int i, int j, int k, Random random)
{
int l = getFlowDecay(world, i, j, k);
byte byte0 = 1;
if (blockMaterial == Material.lava && !world.worldProvider.isHellWorld)
{
byte0 = 2;
}
boolean flag = true;
if (l > 0)
{
int i1 = -100;
numAdjacentSources = 0;
i1 = getSmallestFlowDecay(world, i - 1, j, k, i1);
i1 = getSmallestFlowDecay(world, i + 1, j, k, i1);
i1 = getSmallestFlowDecay(world, i, j, k - 1, i1);
i1 = getSmallestFlowDecay(world, i, j, k + 1, i1);
int j1 = i1 + byte0;
if (j1 >= 8 || i1 < 0)
{
j1 = -1;
}
if (getFlowDecay(world, i, j + 1, k) >= 0)
{
int l1 = getFlowDecay(world, i, j + 1, k);
if (l1 >= 8)
{
j1 = l1;
}
else
{
j1 = l1 + 8;
}
}
if (numAdjacentSources >= 2 && blockMaterial == Material.water)
{
if (world.getBlockMaterial(i, j - 1, k).isSolid())
{
j1 = 0;
}
else if (world.getBlockMaterial(i, j - 1, k) == blockMaterial && world.getBlockMetadata(i, j, k) == 0)
{
j1 = 0;
}
}
if (blockMaterial == Material.lava && l < 8 && j1 < 8 && j1 > l && random.nextInt(4) != 0)
{
j1 = l;
flag = false;
}
if (j1 != l)
{
l = j1;
if (l < 0)
{
world.setBlockWithNotify(i, j, k, 0);
}
else
{
world.setBlockMetadataWithNotify(i, j, k, l);
world.scheduleBlockUpdate(i, j, k, blockID, tickRate());
world.notifyBlocksOfNeighborChange(i, j, k, blockID);
}
}
else if (flag)
{
updateFlow(world, i, j, k);
}
}
else
{
updateFlow(world, i, j, k);
}
if (liquidCanDisplaceBlock(world, i, j - 1, k))
{
if (blockMaterial == Material.lava && world.getBlockMaterial(i, j - 1, k) == Material.water)
{
world.setBlockWithNotify(i, j - 1, k, Block.stone.blockID);
triggerLavaMixEffects(world, i, j - 1, k);
return;
}
if (l >= 8)
{
world.setBlockAndMetadataWithNotify(i, j - 1, k, blockID, l);
}
else
{
world.setBlockAndMetadataWithNotify(i, j - 1, k, blockID, l + 8);
}
}
else if (l >= 0 && (l == 0 || blockBlocksFlow(world, i, j - 1, k)))
{
boolean aflag[] = getOptimalFlowDirections(world, i, j, k);
int k1 = l + byte0;
if (l >= 8)
{
k1 = 1;
}
if (k1 >= 8)
{
return;
}
if (aflag[0])
{
flowIntoBlock(world, i - 1, j, k, k1);
}
if (aflag[1])
{
flowIntoBlock(world, i + 1, j, k, k1);
}
if (aflag[2])
{
flowIntoBlock(world, i, j, k - 1, k1);
}
if (aflag[3])
{
flowIntoBlock(world, i, j, k + 1, k1);
}
}
}
private void flowIntoBlock(World world, int i, int j, int k, int l)
{
if (liquidCanDisplaceBlock(world, i, j, k))
{
int i1 = world.getBlockId(i, j, k);
if (i1 > 0)
{
if (blockMaterial == Material.lava)
{
triggerLavaMixEffects(world, i, j, k);
}
else
{
Block.blocksList[i1].dropBlockAsItem(world, i, j, k, world.getBlockMetadata(i, j, k), 0);
}
}
world.setBlockAndMetadataWithNotify(i, j, k, blockID, l);
}
}
private int calculateFlowCost(World world, int i, int j, int k, int l, int i1)
{
int j1 = 1000;
for (int k1 = 0; k1 < 4; k1++)
{
if (k1 == 0 && i1 == 1 || k1 == 1 && i1 == 0 || k1 == 2 && i1 == 3 || k1 == 3 && i1 == 2)
{
continue;
}
int l1 = i;
int i2 = j;
int j2 = k;
if (k1 == 0)
{
l1--;
}
if (k1 == 1)
{
l1++;
}
if (k1 == 2)
{
j2--;
}
if (k1 == 3)
{
j2++;
}
if (blockBlocksFlow(world, l1, i2, j2) || world.getBlockMaterial(l1, i2, j2) == blockMaterial && world.getBlockMetadata(l1, i2, j2) == 0)
{
continue;
}
if (!blockBlocksFlow(world, l1, i2 - 1, j2))
{
return l;
}
if (l >= 4)
{
continue;
}
int k2 = calculateFlowCost(world, l1, i2, j2, l + 1, k1);
if (k2 < j1)
{
j1 = k2;
}
}
return j1;
}
private boolean[] getOptimalFlowDirections(World world, int i, int j, int k)
{
for (int l = 0; l < 4; l++)
{
flowCost[l] = 1000;
int j1 = i;
int i2 = j;
int j2 = k;
if (l == 0)
{
j1--;
}
if (l == 1)
{
j1++;
}
if (l == 2)
{
j2--;
}
if (l == 3)
{
j2++;
}
if (blockBlocksFlow(world, j1, i2, j2) || world.getBlockMaterial(j1, i2, j2) == blockMaterial && world.getBlockMetadata(j1, i2, j2) == 0)
{
continue;
}
if (!blockBlocksFlow(world, j1, i2 - 1, j2))
{
flowCost[l] = 0;
}
else
{
flowCost[l] = calculateFlowCost(world, j1, i2, j2, 1, l);
}
}
int i1 = flowCost[0];
for (int k1 = 1; k1 < 4; k1++)
{
if (flowCost[k1] < i1)
{
i1 = flowCost[k1];
}
}
for (int l1 = 0; l1 < 4; l1++)
{
isOptimalFlowDirection[l1] = flowCost[l1] == i1;
}
return isOptimalFlowDirection;
}
private boolean blockBlocksFlow(World world, int i, int j, int k)
{
int l = world.getBlockId(i, j, k);
if (l == Block.doorWood.blockID || l == Block.doorSteel.blockID || l == Block.signPost.blockID || l == Block.ladder.blockID || l == Block.reed.blockID)
{
return true;
}
if (l == 0)
{
return false;
}
Material material = Block.blocksList[l].blockMaterial;
if (material == Material.portal)
{
return true;
}
return material.blocksMovement();
}
protected int getSmallestFlowDecay(World world, int i, int j, int k, int l)
{
int i1 = getFlowDecay(world, i, j, k);
if (i1 < 0)
{
return l;
}
if (i1 == 0)
{
numAdjacentSources++;
}
if (i1 >= 8)
{
i1 = 0;
}
return l >= 0 && i1 >= l ? l : i1;
}
private boolean liquidCanDisplaceBlock(World world, int i, int j, int k)
{
Material material = world.getBlockMaterial(i, j, k);
if (material == blockMaterial)
{
return false;
}
if (material == Material.lava)
{
return false;
}
else
{
return !blockBlocksFlow(world, i, j, k);
}
}
public void onBlockAdded(World world, int i, int j, int k)
{
super.onBlockAdded(world, i, j, k);
if (world.getBlockId(i, j, k) == blockID)
{
world.scheduleBlockUpdate(i, j, k, blockID, tickRate());
}
}
}
BlockStationaryHogeクラスを作成
長々と書きますがやってることは単純です。 既存の「BlockStationary」クラスをコピペし、クラス名に依存してる部分修正。
package net.minecraft.src;
import java.util.Random;
public class BlockStationaryHoge extends BlockFluid
{
protected BlockStationaryHoge(int i, Material material)
{
super(i, material);
setTickOnLoad(false);
if (material == Material.lava)
{
setTickOnLoad(true);
}
}
public void onNeighborBlockChange(World world, int i, int j, int k, int l)
{
super.onNeighborBlockChange(world, i, j, k, l);
if (world.getBlockId(i, j, k) == blockID)
{
setNotStationary(world, i, j, k);
}
}
private void setNotStationary(World world, int i, int j, int k)
{
int l = world.getBlockMetadata(i, j, k);
world.editingBlocks = true;
world.setBlockAndMetadata(i, j, k, blockID - 1, l);
world.markBlocksDirty(i, j, k, i, j, k);
world.scheduleBlockUpdate(i, j, k, blockID - 1, tickRate());
world.editingBlocks = false;
}
public void updateTick(World world, int i, int j, int k, Random random)
{
if (blockMaterial == Material.lava)
{
int l = random.nextInt(3);
for (int i1 = 0; i1 < l; i1++)
{
i += random.nextInt(3) - 1;
j++;
k += random.nextInt(3) - 1;
int j1 = world.getBlockId(i, j, k);
if (j1 == 0)
{
if (isFlammable(world, i - 1, j, k) || isFlammable(world, i + 1, j, k) || isFlammable(world, i, j, k - 1) || isFlammable(world, i, j, k + 1) || isFlammable(world, i, j - 1, k) || isFlammable(world, i, j + 1, k))
{
world.setBlockWithNotify(i, j, k, Block.fire.blockID);
return;
}
continue;
}
if (Block.blocksList[j1].blockMaterial.blocksMovement())
{
return;
}
}
}
}
private boolean isFlammable(World world, int i, int j, int k)
{
return world.getBlockMaterial(i, j, k).getCanBurn();
}
}
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