fork download
copy 
  1. // Count elements in array
  2. #define COUNT_OF(x) ((sizeof(x)/sizeof(0[x])) / ((size_t)(!(sizeof(x) % sizeof(0[x])))))
  3.  
  4. #include <Arduboy2.h>
  5.  
  6. // make an instance of arduboy used for many functions
  7. Arduboy2 arduboy;
  8.  
  9. class ball{
  10.   public:
  11.     int angle = 0;
  12.     float x = 64;
  13.     float y = 32;
  14.     float spd = 0;
  15.     int radius = 5;  
  16. };
  17.  
  18. long prevMillis;
  19. long lastPressedButton;
  20.  
  21. ball *balls;
  22. int ballCount = 3;
  23.  
  24. // This function runs once in your game.
  25. // use it for anything that needs to be set only once in your game.
  26. void setup() {
  27.  
  28.   randomSeed(analogRead(A3));
  29.   balls = new ball[ ballCount ];
  30.  
  31.   for(int i=0; i<ballCount; i++){
  32.     balls[i].angle = random(0,360);
  33.     balls[i].spd = random(1,5);
  34.   }
  35.  
  36.   // initiate arduboy instance
  37.   arduboy.begin();
  38.  
  39.   // here we set the framerate to 15, we do not need to run at
  40.   // default 60 and it saves us battery life
  41.   arduboy.setFrameRate(60);
  42. }
  43.  
  44. // our main game loop, this runs once every cycle/frame.
  45. // this is where our game logic goes.
  46. void loop() {
  47.  
  48.   if (millis() > prevMillis+1000/60){
  49.  
  50.     for(int i=0; i<ballCount; i++){
  51.       balls[i].x = round(balls[i].x + cos(balls[i].angle*PI/180)*balls[i].spd);
  52.       balls[i].y = round(balls[i].y + sin(balls[i].angle*PI/180)*balls[i].spd);
  53.  
  54.       if(balls[i].x - balls[i].radius < 0 || balls[i].x + balls[i].radius > 128){
  55.         balls[i].angle = 180-balls[i].angle;  
  56.       }
  57.  
  58.       if (balls[i].y - balls[i].radius < 0 || balls[i].y + balls[i].radius > 64){
  59.         balls[i].angle *= -1;
  60.       }  
  61.  
  62.       balls[i].angle %= 360;
  63.     }
  64.  
  65.     prevMillis = millis();
  66.   }
  67.  
  68.   // pause render until it's time for the next frame  
  69.   if (!(arduboy.nextFrame()))
  70.     return;
  71.  
  72.   // first we clear our screen to black
  73.   arduboy.clear();
  74.  
  75.   if(millis() > lastPressedButton + 50){
  76.     if(arduboy.pressed(A_BUTTON)){
  77.  
  78.       delete [] balls;
  79.       ballCount += 1;
  80.       balls = new ball[ballCount];  
  81.  
  82.       for(int i=0; i<ballCount; i++){
  83.         balls[i].x = 64;
  84.         balls[i].y = 32;
  85.         balls[i].angle = random(0,360);
  86.         balls[i].spd = random(1,5);
  87.       }      
  88.     }
  89.  
  90.     if(arduboy.pressed(B_BUTTON) ){
  91.       if(ballCount > 0){
  92.         ballCount -= 1;
  93.       }
  94.     }
  95.     lastPressedButton = millis();
  96.   }
  97.  
  98.   for(int i=0; i<ballCount; i++){
  99.     arduboy.drawCircle(balls[i].x,balls[i].y,balls[i].radius,WHITE);
  100.   }
  101.  
  102.   arduboy.setCursor(4, 64-8);
  103.   arduboy.print(F("Ball Count: "));
  104.   arduboy.setCursor(4+64+4, 64-8);
  105.   arduboy.print(ballCount);
  106.   arduboy.setCursor(4+64+4+8+4, 64-8);
  107.   arduboy.print("CPU: ");
  108.   arduboy.setCursor(4+64+4+8+24+4, 64-8);
  109.   arduboy.print(arduboy.cpuLoad());
  110.  
  111.   // then we finaly we tell the arduboy to display what we just wrote to the display
  112.   arduboy.display();
  113. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
compilation info 
prog.cpp:4:22: fatal error: Arduboy2.h: No such file or directory
 #include <Arduboy2.h>
                      ^
compilation terminated.
stdout
copy 
Standard output is empty
https://ideone.com/cQyGGH
language:
C++ 4.3.2 (gcc-4.3.2)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!