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history/016b_twoinput_unfinish/src/main/java/com/gitee/drinkjava2/frog/objects/OneInputJudge.java

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+package com.gitee.drinkjava2.frog.objects;
+
+import java.awt.Color;
+import java.awt.Graphics;
+
+import com.gitee.drinkjava2.frog.Env;
+import com.gitee.drinkjava2.frog.Frog;
+import com.gitee.drinkjava2.frog.brain.Genes;
+import com.gitee.drinkjava2.frog.util.RandomUtils;
+
+/**
+ * 
+ * OneInputJudge 用来模拟只有一个信号输入时的情况下，青蛙是否随信号点亮咬下去, 随信号消失不咬
+ * 这是最简单的模式识别，即1时输出1， 0时输出0
+ *  
+ */
+public class OneInputJudge implements EnvObject {
+    private int n = 16; //n是小方块边长
+    private static int[] food = new int[Env.STEPS_PER_ROUND + 10];
+    private static int totalFood;
+
+    private static void resetFood() {
+        int step = 0;
+        int x = 2;
+        while (step < (Env.STEPS_PER_ROUND)) {
+            int firstFood = RandomUtils.nextInt(5); //以10为一组，随机安排5个食物
+            for (int i = 0; i < 10; i++)
+                if (i < firstFood || i > firstFood + x)
+                    food[step + i] = 0;
+                else
+                    food[step + i] = 1;
+            step += 10;
+            if (x == 2)
+                x = 6;
+            else
+                x = 2;
+        }
+        for (int i : food)
+            if (i == 1)
+                totalFood++;
+    }
+
+    @Override
+    public void build(Graphics g) { //build在每屏测试前调用一次，这里用随机数准备好食物出现和消失的顺序为测试作准备
+        if (totalFood == 0) {
+            resetFood();
+            System.out.println("totalFood=" + totalFood);
+        }
+        resetFood();
+
+        for (int i = 0; i < Env.STEPS_PER_ROUND; i++) { //画出当前食物分布图
+            int x = i % (Env.ENV_WIDTH / n);
+            int y = i / (Env.ENV_WIDTH / n);
+            if (food[i] == 1)
+                g.fillRect(x * n, y * n, n, n);
+            else
+                g.drawRect(x * n, y * n, n, n);
+            x++;
+        }
+    }
+
+    @Override
+    public void destory(Graphics g) {
+    }
+
+    /*
+     * active方法中做以下事情：
+     * 1.如果有食物就点亮视细胞
+     * 2.如果视细胞点亮且咬下就奖，如果视细胞没点亮且咬下就罚
+     * 3.在左边Env显示区画出当前food的进度条
+     */
+    @Override
+    public void active(int screen, int step, Graphics g) {
+        Frog f;
+        int x, y;
+        boolean hasFood = food[step] == 1;
+        for (int i = 0; i < Env.FROG_PER_SCREEN; i++) {
+            f = Env.frogs.get(Env.current_screen * Env.FROG_PER_SCREEN + i);
+            if (hasFood)
+                f.setEng(Genes.EYE1_POS, 1f);
+            else
+                f.setEng(Genes.EYE1_POS, 0f);
+
+            if (f.getEng(Genes.BITE_POS) > 0.8) {
+                if (f.getEng(Genes.EYE1_POS) > 0.8) {
+                    f.awardA(); //咬到了有奖
+                    f.ateFood++;
+                    f.setEng(Genes.SWEET_POS, 1); //咬到能感觉到甜，这是大自然进化出来的功能，给青蛙一个知道自己咬对的信号
+                    f.setEng(Genes.BITTER_POS, 0);
+                    g.setColor(Color.GREEN);
+                } else {
+                    f.ateWrong++;
+                    f.penaltyA(); //咬空了扣分
+                    f.setEng(Genes.SWEET_POS, 0);
+                    f.setEng(Genes.BITTER_POS, 1); //咬错了，能感觉到苦味，这是大自然进化出来的功能，给青蛙一个知道自己咬错的信号
+                    g.setColor(Color.RED);
+                }
+            } else { //如果都没有咬，关闭甜和苦味感觉
+                f.setEng(Genes.SWEET_POS, 0);
+                f.setEng(Genes.BITTER_POS, 0);
+                if (hasFood) {
+                    g.setColor(Color.RED);
+                    f.ateMiss++;
+                }
+                else
+                    g.setColor(Color.GREEN);
+            }
+            if (i == 0) {
+                x = step % (Env.ENV_WIDTH / n);//用红色标记当前走到哪一步食物位置
+                y = step / (Env.ENV_WIDTH / n);
+                g.fillRect(x * n, y * n + n / 2, n, 2);
+            }
+        }
+
+    }
+
+}