Math game

Page last updated 13 Mar 2015, by Reuben Juste. 0 replies

Overview- For our project we decided to make a simple speed math test game. What we do is we wait for the user to press a button at any time and at that moment we set the seed based on the amount of milliseconds the player delayed vs the start of the program. Once there we randomly generate a math equation. The player has 6 push buttons. Each push button corresponds to either +1, +10, +100, -1, -10, -100. The player is given 30 seconds on round one to come up with the correct answer. If the user does so the time of the timer is shaved off by 3. The point of the game is to see how quickly you can solve and press in an answer.

Components-

Circuit-

Lcd pinmbed pin
5vVU
GroundGND
RXP10
TXP9
RESp11

From top to bottom from the picture above the pins are pb6, pb5, pb4, pb3, pb2, and pb1. /media/uploads/rjuste3/20150313_101929.jpg

Pushbutton:

Pb1P13+1
Pb2P14+10
Pb3P15+100
Pb4P16-1
Pb5P17-10
Pb6P18-100

Code for game

#include <math.h>
#include "mbed.h"
#include "uLCD_4DGL.h"
#include <time.h>

uLCD_4DGL uLCD(p9, p10,p11);
int operand1;
int operand2;
int op;
int answer;
int ans = 0;
int score = 0;
int seconds = 30;
float seed;
Timer t;
DigitalIn pb1(p13);
DigitalIn pb2(p14);
DigitalIn pb3(p15);
DigitalIn pb4(p16);
DigitalIn pb5(p17);
DigitalIn pb6(p18);


void generateProblem(){
    //generates random numbers between 1 and 40 as operands
    operand1 = rand() % 40 + 1;
    operand2 = rand() % 40 + 1;
    op = rand() % 3;
    
    //genearte random operator and appropriate answer
    if (op == 0){
        uLCD.locate(0,0);
        uLCD.printf("%d + %d\n",operand1, operand2);
        answer = operand1 + operand2;
        }
    else if (op == 1){
        uLCD.locate(0,0);
        uLCD.printf("%d - %d\n",operand1, operand2);
        answer = operand1 - operand2;
        }
    else if (op == 2){
        uLCD.locate(0,0);
        uLCD.printf("%d * %d\n",operand1, operand2);
        answer = operand1 * operand2;        
        }
  
    
    }
int main()
{
    pb1.mode(PullUp);
    pb2.mode(PullUp);
    pb3.mode(PullUp);
    pb4.mode(PullUp);
    pb5.mode(PullUp);
    pb6.mode(PullUp);
    

    bool randomGen = true;
    t.start();
    while(randomGen){ //push any button to start game
        uLCD.locate(1,0);
        uLCD.printf("Push any button to start the game");
        if(pb1==0 || pb2==0 || pb3==0 || pb4==0 || pb5==0 || pb6 == 0){
            seed = t.read_us();
        randomGen= false;
        t.reset();
        uLCD.cls();
        }
           } 

    
    
    srand((int)seed);
    
    
    
   while(true){
    generateProblem(); //generate problem
    uLCD.locate(1,14);
    uLCD.printf("Score: %d",score);//display score
    t.start();
    
    while(t.read() <= seconds){
           if(seconds - (int)t.read() < 10){ //display time limit
               uLCD.locate(13,1);
               uLCD.printf("%d",(seconds -(int)t.read()));
               } else{
           uLCD.locate(12,1);
           uLCD.printf("%d",(seconds -(int)t.read()));
           }
           //push pushbutton to add up your answer to approach correct answer
       if(pb1 == 0)
        {
        ans = ans + 1;
        uLCD.locate(1,2);
        uLCD.printf("%d",ans);
        wait(0.2);
        }
        else if(pb2 == 0)
        {
        ans = ans + 10;
         uLCD.locate(1,2);
         uLCD.printf("%d",ans);
         wait(0.2);
        }
        else if(pb3 == 0) 
        {
        ans = ans + 100;
         uLCD.locate(1,2);
         uLCD.printf("%d",ans);
         wait(0.2);
        }
        else if(pb4 == 0)
        {
        ans = ans  - 1;
         uLCD.locate(1,2);
         uLCD.printf("%d",ans);
         wait(0.2);
        }
        else if(pb5 == 0) 
        {
        ans = ans - 10;
         uLCD.locate(1,2);
         uLCD.printf("%d",ans);
         wait(0.2);
        }
        else if(pb6 == 0)
        {
        ans = ans - 100;
         uLCD.locate(1,2);
         uLCD.printf("%d",ans);
         wait(0.2);
        }
      }
      
      if( ans == answer){//if correct answer then add score and decrease time limit
        score += 1;
        seconds -=3;
        }else
        {
           uLCD.cls();
           uLCD.printf("You lose!\n Your score is %d",score);
           wait(5);
           score = 0;
           seconds = 30;
        }
        t.reset();
        
      ans = 0;
      
      uLCD.cls();
    
    
    }
    
}

Import programminiproject

This is the code to the math game mini project.

Last commit 13 Mar 2015 by Reuben Juste

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