节奏大灯源码

节奏大灯源码

#include <Adafruit_NeoPixel.h>

// ========== 引脚固定 ==========
#define L_STRIP  7
#define M_STRIP  5
#define R_STRIP  6
#define LED_CNT  6

#define KEY1     0
#define KEY2     1
#define KEY3     10
// =============================

Adafruit_NeoPixel stripL(LED_CNT, L_STRIP, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel stripM(LED_CNT, M_STRIP, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel stripR(LED_CNT, R_STRIP, R_STRIP, NEO_GRB + NEO_KHZ800);

// 游戏变量
int nowLine = 0;
int dotPos = 5;
int speed = 800;
int minSpeed = 280;
unsigned long timer = 0;

// 状态
bool waitStart = true;
bool gameFail = false;

void setup() {
  Serial.begin(115200);
  stripL.begin();
  stripM.begin();
  stripR.begin();

  pinMode(KEY1, INPUT_PULLUP);
  pinMode(KEY2, INPUT_PULLUP);
  pinMode(KEY3, INPUT_PULLUP);

  // 开机 全部全亮
  showAllFull();
  randomSeed(millis());
}

void loop() {
  // 待机界面：全亮，按任意键开始
  if(waitStart){
    if(anyKeyPress()){
      waitStart = false;
      newWave();
    }
    return;
  }

  // 失败界面：灯闪烁，按任意键重置
  if(gameFail){
    failBlink();
    if(anyKeyPress()){
      gameFail = false;
      speed = 800;
      showAllFull();
      waitStart = true;
    }
    return;
  }

  // 游戏运行
  gameMove();
  checkHit();
}

// 随机新轨道 生成音符
void newWave(){
  clearAll();
  // 终点第一颗常亮
  stripL.setPixelColor(0, stripL.Color(0, 50, 100));
  stripM.setPixelColor(0, stripM.Color(0, 50, 100));
  stripR.setPixelColor(0, stripR.Color(0, 50, 100));

  nowLine = random(1,4); //1左 2中 3右
  dotPos = 5;
  timer = millis();
  refreshShow();
}

// 光点前移
void gameMove(){
  if(millis() - timer >= speed){
    timer = millis();
    dotPos --;

    // 走完没按 = 失败
    if(dotPos < 0){
      gameFail = true;
      return;
    }
    refreshShow();
  }
}

// 刷新当前光点
void refreshShow(){
  clearAll();
  stripL.setPixelColor(0, stripL.Color(0, 50, 100));
  stripM.setPixelColor(0, stripM.Color(0, 50, 100));
  stripR.setPixelColor(0, stripR.Color(0, 50, 100));

  if(nowLine == 1) stripL.setPixelColor(dotPos, stripL.Color(200, 0, 200));
  if(nowLine == 2) stripM.setPixelColor(dotPos, stripM.Color(200, 0, 200));
  if(nowLine == 3) stripR.setPixelColor(dotPos, stripR.Color(200, 0, 200));

  stripL.show();
  stripM.show();
  stripR.show();
}

// 按键判定
void checkHit(){
  // 刚好到判定点 pos=0 才算命中
  if(dotPos == 0){
    if(KEY1==0 && digitalRead(KEY1)==LOW && nowLine==1){
      hitSuccess();
    }
    if(digitalRead(KEY2)==LOW && nowLine==2){
      hitSuccess();
    }
    if(digitalRead(KEY3)==LOW && nowLine==3){
      hitSuccess();
    }
  }
}

// 命中成功 加速
void hitSuccess(){
  speed -= 40;
  if(speed < minSpeed) speed = minSpeed;
  // 绿色反馈
  if(nowLine==1){stripL.fill(stripL.Color(0,200,0));stripL.show();}
  if(nowLine==2){stripM.fill(stripM.Color(0,200,0));stripM.show();}
  if(nowLine==3){stripR.fill(stripR.Color(0,200,0));stripR.show();}
  delay(200);
  newWave();
}

// 失败 全灯闪烁
void failBlink(){
  static unsigned long t = 0;
  static bool flg = false;
  if(millis()-t > 150){
    t=millis();
    flg=!flg;
    if(flg){
      stripL.fill(stripL.Color(200,0,0));
      stripM.fill(stripM.Color(200,0,0));
      stripR.fill(stripR.Color(200,0,0));
    }else{
      clearAll();
    }
    stripL.show();stripM.show();stripR.show();
  }
}

// 任意按键按下
bool anyKeyPress(){
  if(digitalRead(KEY1)==LOW || digitalRead(KEY2)==LOW || digitalRead(KEY3)==LOW){
    delay(200);
    return true;
  }
  return false;
}

// 全部清空
void clearAll(){
  stripL.clear();
  stripM.clear();
  stripR.clear();
  stripL.show();
  stripM.show();
  stripR.show();
}

// 开机全亮
void showAllFull(){
  stripL.fill(stripL.Color(60,60,60));
  stripM.fill(stripM.Color(60,60,60));
  stripR.fill(stripR.Color(60,60,60));
  stripL.show();
  stripM.show();
  stripR.show();
}

总结

越玩越快