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history/003a_legs/src/main/java/com/github/drinkjava2/frog/brain/organ/NewEye.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.Application;
+import com.github.drinkjava2.frog.Env;
+import com.github.drinkjava2.frog.Frog;
+import com.github.drinkjava2.frog.brain.BrainPicture;
+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.brain.Zone;
+import com.github.drinkjava2.frog.util.RandomUtils;
+
+/**
+ * Eye is an organ can see environment, and active brain cells which inputs are
+ * located in eye range
+ * 
+ * @author Yong Zhu
+ * @since 1.0
+ */
+public class NewEye extends Organ {// 这个新版的眼睛有nxn个感光细胞，可以看到青蛙周围nxn网络内有没有食物
+	private static final long serialVersionUID = 1L;
+	public int n = 3; // 眼睛有n x n个感光细胞， 用随机试错算法自动变异(加1或减1，最小是3x3)
+
+	@Override
+	public void initFrog(Frog f) { // 仅在Frog生成时这个方法会调用一次，缺省啥也不干，通常用于Organ类的初始化
+		if (!initilized) {
+			initilized = true;
+			organOutputEnergy = 30;
+		}
+	}
+
+	@Override
+	public void drawOnBrainPicture(Frog f, BrainPicture pic) {// 把自已这个器官在脑图上显示出来
+		if (!Application.SHOW_FIRST_FROG_BRAIN)
+			return;
+		super.drawOnBrainPicture(f, pic);
+		float r2 = r / n; // r2是每个感光细胞的半径
+		float x0 = x - r;
+		float y0 = y - r; // x0,y0是眼睛的左上角
+		for (int i = 0; i < n; i++) {
+			for (int j = 0; j < n; j++) {
+				Zone cell = new Zone(x0 + i * 2 * r2 + r2, y0 + j * 2 * r2 + r2, r2);
+				if (Env.foundAnyThing(f.x - n / 2 + i, f.y - n / 2 + j))
+					pic.fillZone(cell);
+				else
+					pic.drawZone(cell);
+			}
+		}
+	}
+
+	@Override
+	public Organ[] vary() {
+		if (RandomUtils.percent(50)) {
+			n = n + 1 - 2 * RandomUtils.nextInt(2);
+			if (n < 3)
+				n = 3;
+			if (n > 10)
+				n = 10;
+		}
+		return new Organ[] { this };
+	}
+
+	@Override
+	public void active(Frog f) {// 如果看到食物就激活对应脑区的所有输入触突
+		float r2 = r / n; // r2是每个感光细胞的半径
+		float x0 = x - r;
+		float y0 = y - r; // x0,y0是眼睛的左上角
+		for (int i = 0; i < n; i++) {
+			for (int j = 0; j < n; j++) {
+				if (Env.foundAnyThing(f.x - n / 2 + i, f.y - n / 2 + j)) {
+					Zone eyeCell = new Zone(x0 + i * 2 * r2 + r2, y0 + j * 2 * r2 + r2, r2);
+					for (Cell cell : f.cells)
+						for (Input input : cell.inputs)
+							if (input.nearby(eyeCell))
+								input.cell.energy += organOutputEnergy;
+				}
+			}
+		}
+	}
+
+}