BetterEnd/src/main/java/ru/betterend/mixin/common/EndPortalFeatureMixin.java
2021-04-12 16:34:13 +03:00

73 lines
2.8 KiB
Java

package ru.betterend.mixin.common;
import java.util.Random;
import org.spongepowered.asm.mixin.Final;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.ModifyVariable;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
import net.minecraft.nbt.NbtHelper;
import net.minecraft.structure.Structure;
import net.minecraft.structure.StructurePlacementData;
import net.minecraft.core.BlockPos;
import net.minecraft.world.Heightmap.Type;
import net.minecraft.world.level.WorldGenLevel;
import net.minecraft.world.level.chunk.ChunkGenerator;
import net.minecraft.world.level.levelgen.feature.configurations.NoneFeatureConfiguration;
import net.minecraft.world.level.levelgen.feature.EndPortalFeature;
import ru.betterend.BetterEnd;
import ru.betterend.util.StructureHelper;
import ru.betterend.util.WorldDataUtil;
import ru.betterend.world.generator.GeneratorOptions;
@Mixin(EndPortalFeature.class)
public class EndPortalFeatureMixin {
@Final
@Shadow
private boolean open;
@Inject(method = "generate", at = @At("HEAD"), cancellable = true)
private void bePortalGenerate(WorldGenLevel world, ChunkGenerator generator, Random random, BlockPos blockPos,
NoneFeatureConfiguration config, CallbackInfoReturnable<Boolean> info) {
if (!GeneratorOptions.hasPortal()) {
info.setReturnValue(false);
info.cancel();
} else if (GeneratorOptions.replacePortal()) {
blockPos = be_updatePos(blockPos, world);
Structure structure = StructureHelper
.readStructure(BetterEnd.makeID(open ? "portal/end_portal_active" : "portal/end_portal_inactive"));
BlockPos size = structure.getSize();
blockPos = blockPos.add(-(size.getX() >> 1), -3, -(size.getZ() >> 1));
structure.place(world, blockPos, new StructurePlacementData(), random);
info.setReturnValue(true);
info.cancel();
}
}
@ModifyVariable(method = "generate", ordinal = 0, at = @At("HEAD"))
private BlockPos be_setPosOnGround(BlockPos blockPos, WorldGenLevel world) {
return be_updatePos(blockPos, world);
}
private BlockPos be_updatePos(BlockPos blockPos, WorldGenLevel world) {
if (GeneratorOptions.useNewGenerator()) {
BlockPos pos = GeneratorOptions.getPortalPos();
if (pos.equals(BlockPos.ORIGIN)) {
int y = world.getChunk(blockPos).sampleHeightmap(Type.WORLD_SURFACE, blockPos.getX(), blockPos.getZ());
if (y < 1) {
y = 65;
}
pos = new BlockPos(pos.getX(), y, pos.getZ());
GeneratorOptions.setPortalPos(pos);
WorldDataUtil.getRootTag().put("portal", NbtHelper.fromBlockPos(pos));
WorldDataUtil.saveFile();
}
return pos;
}
return blockPos;
}
}