78 lines
2.5 KiB
Java
78 lines
2.5 KiB
Java
package com.thebrokenrail.twine.entity;
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import com.thebrokenrail.twine.Twine;
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import net.minecraft.entity.ai.goal.Goal;
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import net.minecraft.entity.ai.pathing.Path;
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import net.minecraft.entity.mob.MobEntityWithAi;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.util.math.Vec3d;
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import net.minecraft.world.WorldView;
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import net.minecraft.world.chunk.Chunk;
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import net.minecraft.world.chunk.ChunkStatus;
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public class StandOnGlowingObsidianGoal extends Goal {
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private final MobEntityWithAi mob;
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private Vec3d targetPos;
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private Path path;
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public StandOnGlowingObsidianGoal(MobEntityWithAi mob) {
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super();
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this.mob = mob;
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}
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private boolean findTargetPos() {
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BlockPos blockPos = mob.getBlockPos();
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BlockPos.Mutable mutable = new BlockPos.Mutable();
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for (int k = 0; k <= Twine.AI_MAX_Y_DIFFERENCE; k = k > 0 ? -k : 1 - k) {
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for (int l = 0; l < Twine.AI_RANGE; ++l) {
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for (int m = 0; m <= l; m = m > 0 ? -m : 1 - m) {
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for (int n = m < l && m > -l ? l : 0; n <= l; n = n > 0 ? -n : 1 - n) {
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mutable.set(blockPos, m, k - 1, n);
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if (mob.isInWalkTargetRange(mutable) && isTargetPos(mob.world, mutable)) {
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targetPos = new Vec3d(mutable.getX() + 0.5d, mutable.getY(), mutable.getZ() + 0.5d);
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return true;
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}
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}
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}
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}
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}
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return false;
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}
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@Override
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public boolean canStart() {
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if ((mob.getHealth() / mob.getMaxHealth()) <= 0.5f && findTargetPos()) {
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path = mob.getNavigation().findPathTo(targetPos.x, targetPos.y, targetPos.z, 0);
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return path != null;
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} else {
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return false;
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}
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}
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@Override
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public boolean shouldContinue() {
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return !mob.getNavigation().isIdle();
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}
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@Override
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public void start() {
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mob.getNavigation().startMovingAlong(path, 1f);
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}
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@Override
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public void stop() {
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targetPos = null;
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}
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private boolean isTargetPos(WorldView world, BlockPos pos) {
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Chunk chunk = world.getChunk(pos.getX() >> 4, pos.getZ() >> 4, ChunkStatus.FULL, false);
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if (chunk == null) {
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return false;
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} else {
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return chunk.getBlockState(pos).isOf(Twine.GLOWING_OBSIDIAN) && chunk.getBlockState(pos.up()).isAir() && chunk.getBlockState(pos.up(2)).isAir();
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}
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}
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}
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