首次提交 AutoDig Mod

src/main/java/autodig/client/service/KillAura.java

@@ -0,0 +1,95 @@
+package autodig.client.service;
+
+import autodig.client.config.DigConfig;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.mob.Monster;
+import net.minecraft.util.math.Box;
+import net.minecraft.util.math.Vec3d;
+
+/**
+ * 杀戮光环服务。
+ *
+ * <p>在开关开启时，自动攻击以玩家为中心、指定半径内最近的敌对生物
+ * （{@link Monster}）。攻击前会转向目标方向；"安全模式"开启时，
+ * 玩家生命过低则停止攻击、保命优先。</p>
+ */
+public final class KillAura {
+
+    /** 攻击节流：每 N tick 才允许挥一刀，避免疯狂连点 */
+    private int attackCooldownTicks;
+
+    /**
+     * 每帧调用。执行杀戮光环逻辑（开关关闭时直接返回）。
+     *
+     * @param config 挖矿配置
+     */
+    public void tick(DigConfig config) {
+        MinecraftClient client = MinecraftClient.getInstance();
+        if (client.player == null || client.world == null || client.interactionManager == null) {
+            return;
+        }
+        if (!config.killAura) {
+            return;
+        }
+        net.minecraft.entity.player.PlayerEntity player = client.player;
+        if (player.isDead()) {
+            return;
+        }
+        // 安全模式：血线过低不出击
+        if (config.killAuraSafe) {
+            double health = player.getHealth() / Math.max(player.getMaxHealth(), 1.0) * 100.0;
+            if (health < config.healthFleeThreshold) {
+                return;
+            }
+        }
+        // 挥刀节流
+        if (this.attackCooldownTicks > 0) {
+            this.attackCooldownTicks--;
+            return;
+        }
+        // 攻击冷却未转好则等待
+        if (player.getAttackCooldownProgress(0.5f) < 1.0f) {
+            return;
+        }
+        Entity target = this.findNearestHostile(client, player, config.killRange);
+        if (target == null) {
+            return;
+        }
+        // 转向目标
+        this.faceEntity(player, target);
+        client.interactionManager.attackEntity(player, target);
+        this.attackCooldownTicks = 4; // 约 4 tick 一刀
+    }
+
+    /** 在玩家周围范围内找最近的敌对生物。 */
+    private Entity findNearestHostile(MinecraftClient client, LivingEntity player, double range) {
+        range = Math.max(2.0, range);
+        Box box = player.getBoundingBox().expand(range);
+        Entity best = null;
+        double bestDist = Double.MAX_VALUE;
+        for (Entity e : client.world.getEntitiesByClass(Entity.class, box, e -> e instanceof Monster && e.isAlive())) {
+            double d = e.squaredDistanceTo(player);
+            if (d < bestDist) {
+                bestDist = d;
+                best = e;
+            }
+        }
+        return best;
+    }
+
+    /** 让玩家面朝向实体。 */
+    private void faceEntity(LivingEntity player, Entity target) {
+        Vec3d p = player.getEyePos();
+        Vec3d t = target.getEyePos();
+        double dx = t.x - p.x;
+        double dy = t.y - p.y;
+        double dz = t.z - p.z;
+        double d = Math.sqrt(dx * dx + dz * dz);
+        float yaw = (float) (Math.toDegrees(Math.atan2(dz, dx)) - 90.0);
+        float pitch = (float) (-Math.toDegrees(Math.atan2(dy, Math.max(d, 0.0001))));
+        player.setYaw(yaw);
+        player.setPitch(pitch);
+    }
+}