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package com.gitee.drinkjava2.frog.objects;
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import java.awt.Color;
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import java.awt.Graphics;
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import com.gitee.drinkjava2.frog.Env;
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import com.gitee.drinkjava2.frog.Frog;
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import com.gitee.drinkjava2.frog.util.RandomUtils;
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/**
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*
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* XinputJudge用来代替以前的oneInputJudge/twoInputJudge/ThreeInputJudge..., 区别只是视觉像素点的多少，逻辑都相似所以可以合并
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*
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*/
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public class FoodJudge implements EnvObject {
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int n = 20; //n是表示食物的小方块边长，食物code由多个位组成时，小方块显示它的二进制条形码
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final int p; //p表示食物由有几个视觉像素点
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final int bits;
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final int tasteDelay; //nerveDelay表示从咬下到感到甜苦味之间的延迟
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int group = 8; //时间上，以group为一组，随机安排一段连续区为食物
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int groupspace = 8; //group之间有一段空白间隔时间, 以免干扰
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int[] food = new int[Env.STEPS_PER_ROUND + group];
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int sweetFoodCode; //p个像素点的所有组合中，只有一个组合表示可食，先不考虑多种食物可食， sweetFoodCode可为零，表示所有食物都是有毒的苦食
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int totalSweetFood = 0;
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public FoodJudge(int p, int tasteDelay) { //p表示食物有几个视觉像素点， tasteDelay表示从咬下到感到甜苦味之间的延迟， 如为0表示没有延迟。有延迟才可以避免青蛙利用味觉绕过模式识别，只好根据视觉预判是否可以咬
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this.p = p;
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bits=(int) Math.pow(2, p);
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this.tasteDelay = tasteDelay;
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}
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public void resetFood() {
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sweetFoodCode = RandomUtils.nextInt(bits); // 甜食code每一轮测试都不一样，强迫青蛙每一轮都要根据苦和甜味快速适应，根据视觉预判是可以咬的食物
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int step = 0;
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while (step < (Env.STEPS_PER_ROUND)) {
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int x = 2 + RandomUtils.nextInt(4); //连续出现x个相同食物
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int firstFood = RandomUtils.nextInt(group - x); //以group为一组，随机安排一半为食物
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int foodCode = 1 + RandomUtils.nextInt(bits - 1); //食物
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for (int i = 0; i < group; i++)
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if (i < firstFood || i >= firstFood + x)
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food[step + i] = 0;
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else
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food[step + i] = foodCode;
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step += group + groupspace;
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}
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for (int f : food)
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if (f == sweetFoodCode)
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totalSweetFood++;
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}
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@Override
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public void build() { //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
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Graphics g = Env.graph;
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if (totalSweetFood == 0) {
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resetFood();
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System.out.println("totalSweetFood=" + totalSweetFood);
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}
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resetFood();
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for (int i = 0; i < Env.STEPS_PER_ROUND; i++) { //画出当前食物分布图
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int x = i % (Env.ENV_WIDTH / n);
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int y = i / (Env.ENV_WIDTH / n);
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g.setColor(Color.LIGHT_GRAY);
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g.drawRect(x * n, y * n, n, n);
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int foodCode = food[i];
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boolean isSweet = (foodCode == sweetFoodCode);
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if (isSweet)
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g.setColor(Color.DARK_GRAY); //食物是甜的时，用深灰表示
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else
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g.setColor(Color.LIGHT_GRAY); //食物是苦时，用浅灰表示
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for (int j = 0; j < p; j++) {
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if ((foodCode & (1 << j)) > 0)
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g.fillRect(x * n, y * n + n / p * j, n, n / p);
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}
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}
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}
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@Override
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public void destory() {
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}
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@Override
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public void active() { //改成甜苦味会延迟咬nerveDelay个时间单位产生, 如果设为0表示没有延迟,
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Graphics g = Env.graph;
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int step = Env.step;
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Frog f;
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int foodCode = food[step];
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boolean seeFood1 = (foodCode & 1) > 0;
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boolean seeFood2 = (foodCode & 0b10) > 0;
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boolean isSweet = sweetFoodCode>0 && foodCode == sweetFoodCode; //甜味只能有一种情况
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boolean isBitter = !isSweet && (foodCode>0); //食物存在但又不是甜的，那就是个苦食物
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for (int i = 0; i < Env.FROG_PER_SCREEN; i++) {
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f = Env.frogs.get(Env.current_screen * Env.FROG_PER_SCREEN + i);
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f.see1 = seeFood1;
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f.see2 = seeFood2;
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if (step < Env.STEPS_PER_ROUND - 2) { // 提前看到食物正在靠近
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f.seeFoodComing = ((food[step + 1] > 0) || (food[step + 2] > 0));
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}
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//下面的ateFood, ateWrong, ateMiss以及各种色条都是统计和调试用的，不参与逻辑
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//主线条中的绿表示作出正确咬动作， 红表示咬错或漏咬
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//主线条上方的副线条绿色表示尝到甜味，红色表示尝到苦味
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if (f.bite) {//如果咬下
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if (isSweet) { //甜食
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f.sweetNerveDelay[step + tasteDelay] = true; // 咬下了不能立刻感到味觉，而要过段时间，所以这里我们代替大自然先把当前味觉暂存到sweet/bitter缓存的后面位置上
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f.bitterNerveDelay[step + tasteDelay] = false;
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f.awardAAAA(); //因为甜食数量少比苦食少，为了鼓励多咬，甜食加分比苦食扣分多
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f.ateFood++;
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g.setColor(Color.GREEN); //咬到食物
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} else if (isBitter) { //苦食
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f.sweetNerveDelay[step + tasteDelay] = false;
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f.bitterNerveDelay[step + tasteDelay] = true; //同理，苦味缓存
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f.penaltyAAA(); //
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f.ateWrong++;
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g.setColor(Color.RED);//咬到毒物
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} else {//不甜也不苦说明咬到空气
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f.sweetNerveDelay[step + tasteDelay] = false;
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f.bitterNerveDelay[step + tasteDelay] = false;
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f.penaltyAAA();//咬空气也要消耗能量，扣点分
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f.ateWrong++;
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g.setColor(Color.RED); //咬到空气
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}
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} else { //如果没有咬，当然味觉也没有，也不用扣分，但是大自然会把躺平的青蛙淘汰，因为躺平的青蛙吃的少
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f.sweetNerveDelay[step + tasteDelay] = false;
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f.bitterNerveDelay[step + tasteDelay] = false;
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if (isSweet) { //如果没有咬但是食物是甜的，说明错过了一个甜食
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f.ateMiss++;
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g.setColor(Color.RED); //漏了食物
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} else
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g.setColor(Color.DARK_GRAY); //漏对了，毒物或空气
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}
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f.sweet = f.sweetNerveDelay[step]; //当前青蛙感到的味觉实际上是前几个时间周期咬下时产生的味觉
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f.bitter = f.bitterNerveDelay[step];
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// 开始画出状态色条
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if (i == 0) {// 虚拟环境只显示第一个青蛙的色条
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int x = step % (Env.ENV_WIDTH / n);
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int y = step / (Env.ENV_WIDTH / n);
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g.fillRect(x * n, y * n + n / 2, n, 3);
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if (f.sweet) { //副线条显示味觉
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g.setColor(Color.GREEN); //绿表示甜
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g.fillRect(x * n, y * n + n / 2 - 4, n, 3);
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} else if (f.bitter) {
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g.setColor(Color.RED); //苦用红表示
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g.fillRect(x * n, y * n + n / 2 - 4, n, 3);
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}
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}
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}
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}
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}
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