add GoalNear

src/main/java/baritone/pathing/goals/GoalNear.java

@@ -0,0 +1,50 @@
+/*
+ * This file is part of Baritone.
+ *
+ * Baritone is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Baritone is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Baritone.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package baritone.pathing.goals;
+
+import net.minecraft.util.math.BlockPos;
+
+public class GoalNear implements Goal {
+    final int x;
+    final int y;
+    final int z;
+    final int rangeSq;
+
+    public GoalNear(BlockPos pos, int range) {
+        this.x = pos.getX();
+        this.y = pos.getY();
+        this.z = pos.getZ();
+        this.rangeSq = range * range;
+    }
+
+    @Override
+    public boolean isInGoal(BlockPos pos) {
+        int diffX = x - pos.getX();
+        int diffY = y - pos.getY();
+        int diffZ = z - pos.getZ();
+        return diffX * diffX + diffY * diffY + diffZ * diffZ <= rangeSq;
+    }
+
+    @Override
+    public double heuristic(BlockPos pos) {
+        int diffX = x - pos.getX();
+        int diffY = y - pos.getY();
+        int diffZ = z - pos.getZ();
+        return GoalBlock.calculate(diffX, diffY, diffZ);
+    }
+}