NaturesAura/src/main/java/de/ellpeck/naturesaura/chunk/effect/SpreadEffect.java

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package de.ellpeck.naturesaura.chunk.effect;
import de.ellpeck.naturesaura.NaturesAura;
import de.ellpeck.naturesaura.api.aura.chunk.IAuraChunk;
import de.ellpeck.naturesaura.api.aura.chunk.IDrainSpotEffect;
import de.ellpeck.naturesaura.api.aura.type.IAuraType;
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import net.minecraft.util.Direction;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.World;
import net.minecraft.world.chunk.Chunk;
public class SpreadEffect implements IDrainSpotEffect {
public static final ResourceLocation NAME = new ResourceLocation(NaturesAura.MOD_ID, "spread");
@Override
public void update(World world, Chunk chunk, IAuraChunk auraChunk, BlockPos pos, Integer spot) {
if (Math.abs(spot) < 500000 || Math.abs(IAuraChunk.getAuraInArea(world, pos, 25)) < 2000000)
return;
boolean drain = spot > 0;
int toMove = MathHelper.ceil(Math.abs(spot) * 0.72F);
int perSide = toMove / 6;
while (toMove > 0) {
BlockPos bestOffset = null;
int bestAmount = drain ? Integer.MAX_VALUE : Integer.MIN_VALUE;
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for (Direction facing : Direction.values()) {
BlockPos offset = pos.offset(facing, 15);
if (world.isBlockLoaded(offset) && offset.getY() >= 0 && offset.getY() <= world.getHeight()) {
int amount = IAuraChunk.getAuraInArea(world, offset, 14);
if (drain ? amount < bestAmount : amount > bestAmount) {
bestAmount = amount;
bestOffset = offset;
}
}
}
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if (bestOffset == null)
break;
BlockPos bestPos = drain ? IAuraChunk.getLowestSpot(world, bestOffset, 14, bestOffset)
: IAuraChunk.getHighestSpot(world, bestOffset, 14, bestOffset);
IAuraChunk bestChunk = IAuraChunk.getAuraChunk(world, bestPos);
int moved;
if (drain) {
moved = bestChunk.storeAura(bestPos, perSide);
auraChunk.drainAura(pos, moved);
} else {
moved = bestChunk.drainAura(bestPos, perSide);
auraChunk.storeAura(pos, moved);
}
toMove -= moved;
}
}
@Override
public boolean appliesHere(Chunk chunk, IAuraChunk auraChunk, IAuraType type) {
return true;
}
@Override
public ResourceLocation getName() {
return NAME;
}
}