main.cpp

00001 #include "MicroBit.h" 
00002 int pLocationX;
00003 int pLocationY;
00004 int xPos = 2;
00005 bool gameOver = false;
00006 int y;
00007 int obstacleX;
00008 int score = 0;
00009 int playX;
00010 int direction = 0;
00011 MicroBit uBit;
00012 
00013 //Gets X value from microbit
00014 void getXPos(){
00015     playX = uBit.accelerometer.getX();
00016     if(playX > 250){
00017         xPos++;
00018         direction = 1;
00019     }else if (playX < -250) {
00020         xPos--;
00021         direction = 0;
00022     }
00023     
00024 }
00025 
00026 //Compares player location with obstacle location to check collision.    
00027 void checkCollision(){
00028     if (xPos == obstacleX || xPos == obstacleX - 1 && y == 4){
00029         gameOver = true;    
00030     }else{
00031             
00032         gameOver = false;
00033         }
00034         
00035 }
00036 
00037 //Draws the player on screen, and ensures it cannot go off the side. Also clears lEDs as it moves.
00038 void displayPlayerLocation(){
00039     getXPos();
00040     if (xPos < 0){
00041         xPos = 0;
00042     } else if(xPos > 4) {
00043         xPos = 4;
00044     } 
00045     if(direction == 1) {
00046         uBit.display.image.setPixelValue(xPos - 1, 4, 0);
00047     } else if(direction == 0) {
00048         uBit.display.image.setPixelValue(xPos + 1, 4, 0);
00049     }
00050     
00051     checkCollision();
00052     uBit.display.image.setPixelValue(xPos, 4, 255);
00053 }
00054 
00055 //Displays the falling leds, and also clears them afterwards
00056 void displayObs(){
00057     uBit.display.image.setPixelValue(obstacleX, y, 0);
00058     obstacleX = uBit.random(5);
00059 
00060     for (y = 0; y  < 5; y++){ // descends the obstacles based on y value
00061         uBit.display.image.setPixelValue(obstacleX, y, 255);
00062         if (obstacleX > 0)
00063         {
00064             uBit.display.image.setPixelValue(obstacleX - 1, y, 255); 
00065         }
00066         if (y > 0)
00067         {
00068             uBit.display.image.setPixelValue(obstacleX, y - 1, 0);
00069         }
00070         if (obstacleX > 0 && y > 0)
00071         {
00072             uBit.display.image.setPixelValue(obstacleX - 1, y - 1, 0);
00073         }
00074         if (score > 0)
00075         {
00076             uBit.sleep(500 - score);
00077         }else if (score >= 500)
00078         {
00079             uBit.sleep(0);
00080         }else{
00081             uBit.sleep(500);
00082         }
00083         checkCollision();
00084         displayPlayerLocation();
00085     }
00086     y = 4;
00087     uBit.display.image.setPixelValue(obstacleX, y, 0);
00088     uBit.display.image.setPixelValue(obstacleX - 1, y, 0);    
00089     score += 5;
00090 }
00091 
00092 
00093 
00094 
00095 int main(){
00096     uBit.init();
00097     while(gameOver == false){
00098         displayObs();
00099     }
00100     uBit.display.scroll("Game Over, Score: ");
00101     uBit.display.scroll(score);
00102 }
00103 
00104 
00105