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history/003_trap/src/main/java/com/github/drinkjava2/frog/brain/organ/Chance.java

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+/*
+ * Copyright 2018 the original author or authors. 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by
+ * applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
+ * OF ANY KIND, either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ */
+package com.github.drinkjava2.frog.brain.organ;
+
+import com.github.drinkjava2.frog.Frog;
+import com.github.drinkjava2.frog.brain.Cell;
+import com.github.drinkjava2.frog.brain.Input;
+import com.github.drinkjava2.frog.brain.Organ;
+import com.github.drinkjava2.frog.util.RandomUtils;
+
+/**
+ * Chance is a random number generator
+ * 
+ * 这个器官是一个随机数发生器，用来打乱青蛙的思维，防止它围着一个食物打转出不来
+ */
+public class Chance extends Organ { // 至于这个器官能不能被选中，是另外一回事，听天由命了
+	private static final long serialVersionUID = 1L;
+	public int percent; // 初始化的机率为5%
+
+	@Override
+	public void initFrog(Frog f) {
+		if (!initilized) {
+			initilized = true;
+			percent = 5;
+		}
+	}
+
+	@Override
+	public Organ[] vary() {
+		if (RandomUtils.percent(5)) {
+			percent = percent + 1 - 2 * RandomUtils.nextInt(2);
+			if (percent < 1)
+				percent = 1;
+			if (percent > 98)
+				percent = 98;
+		}
+		return new Organ[] { this };
+	}
+
+	@Override
+	public void active(Frog f) {
+		if (RandomUtils.percent(percent)) {// 如果靠近边界，痛苦信号生成
+			for (Cell cell : f.cells) {
+				if (cell.energy > 0)
+					cell.energy--;
+				if (cell.energy < Cell.MAX_ENERGY_LIMIT)
+					for (Input input : cell.inputs)
+						if (input.nearby(this)) // if input zone nearby this zone
+							cell.energy += 30;
+			}
+		}
+	}
+
+}