From dde4e193847a0dd480e34ee7eb8c071e976a8b4a Mon Sep 17 00:00:00 2001
From: 13766800364 <13766800364@qq.com>
Date: Thu, 9 Oct 2025 16:10:17 +0800
Subject: [PATCH] Add File

---
 .../drinkjava2/frog/organ/frog/FrogEyes.java  | 125 ++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogEyes.java

diff --git a/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogEyes.java b/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogEyes.java
new file mode 100644
index 0000000..78b865a
--- /dev/null
+++ b/history/006_snake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogEyes.java
@@ -0,0 +1,125 @@
+/*
+ * 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.gitee.drinkjava2.frog.organ.frog;
+
+import java.awt.Color;
+
+import com.gitee.drinkjava2.frog.Animal;
+import com.gitee.drinkjava2.frog.Env;
+import com.gitee.drinkjava2.frog.brain.BrainPicture;
+import com.gitee.drinkjava2.frog.brain.Organ;
+import com.gitee.drinkjava2.frog.util.RandomUtils;
+
+/**
+ * Eye can only see 4 direction
+ * 
+ * @author Yong Zhu
+ * @since 1.0
+ */
+public class FrogEyes {
+
+	public static class SeeUp extends Organ {// 只能看到上方食物
+		private static final long serialVersionUID = 1L;
+		public int seeDistance; // 眼睛能看到的距离
+		public transient boolean seeSomeThing = false;
+
+		@Override
+		public void initOrgan(Animal a) { // 仅在生成时这个方法会调用一次
+			if (!initilized) {
+				initilized = true;
+				seeDistance = 8;
+			}
+		}
+
+		@Override
+		public Organ[] vary() {
+			seeDistance = RandomUtils.varyInLimit(seeDistance, 5, 20);
+			if (RandomUtils.percent(5)) { // 可视距离有5%的机率变异
+				seeDistance = seeDistance + 1 - 2 * RandomUtils.nextInt(2);
+				if (seeDistance < 1)
+					seeDistance = 1;
+				if (seeDistance > 50)
+					seeDistance = 50;
+			}
+			return new Organ[] { this };
+		}
+
+		@Override
+		public void drawOnBrainPicture(Animal a, BrainPicture pic) {// 把自已这个器官在脑图上显示出来，子类可以重写这个方法
+			if (!Env.SHOW_FIRST_ANIMAL_BRAIN)
+				return;
+			if (seeSomeThing)
+				pic.setPicColor(Color.RED); // 缺省是黑色
+			else
+				pic.setPicColor(Color.BLACK); // 缺省是黑色
+			pic.drawZone(this);
+			if (this.name != null)
+				pic.drawText(x, y, z, String.valueOf(this.name));
+		}
+
+		@Override
+		public void active(Animal a) {
+			for (int i = 1; i < seeDistance; i++)
+				if (Env.foundAnyThingOrOutEdge(a.x, a.y + i)) {
+					activeInput(a, 30);
+					seeSomeThing = true;
+					return;
+				}
+			seeSomeThing = false;
+		}
+	}
+
+	public static class SeeDown extends SeeUp {// 只能看到下方食物
+		private static final long serialVersionUID = 1L;
+
+		@Override
+		public void active(Animal a) {
+			for (int i = 1; i < seeDistance; i++)
+				if (Env.foundAnyThingOrOutEdge(a.x, a.y - i)) {
+					activeInput(a, 30);
+					seeSomeThing = true;
+					return;
+				}
+			seeSomeThing = false;
+		}
+	}
+
+	public static class SeeLeft extends SeeUp {// 只能看到左方食物
+		private static final long serialVersionUID = 1L;
+
+		@Override
+		public void active(Animal a) {
+			for (int i = 1; i < seeDistance; i++)
+				if (Env.foundAnyThingOrOutEdge(a.x - i, a.y)) {
+					activeInput(a, 30);
+					seeSomeThing = true;
+					return;
+				}
+			seeSomeThing = false;
+		}
+	}
+
+	public static class SeeRight extends SeeUp {// 只能看到右方食物
+		private static final long serialVersionUID = 1L;
+
+		@Override
+		public void active(Animal a) {
+			for (int i = 1; i < seeDistance; i++)
+				if (Env.foundAnyThingOrOutEdge(a.x + i, a.y)) {
+					activeInput(a, 30);
+					seeSomeThing = true;
+					return;
+				}
+			seeSomeThing = false;
+		}
+	}
+
+}