File content as of revision 0:f17d9dc54c1d:

#include "mbed.h"


DigitalOut led[] = {D2,D3,D4,D5,D6,D7,D8,D9};
DigitalIn In[] = {D10,D11,D12};
double speed=0.1;
int pat = 1,tog=0;
void check(){
    tog=0;
    if(In[0]){pat++;tog=1;}
    if(In[1])speed+=0.02;
    if(In[2])speed-=0.02;
    if(speed<=0.02)speed=0.02;
    else if(speed>=1)speed=1;
    if(pat>3)pat=1;
}
int main(){
    
  while(1){
  if(pat==1){
        for(int x=0;x<=7;x++){
              led[x]=1;
              wait(speed);
              led[x]=0;
                check();if(tog==1)break;
        }
    }
    if(pat==2){
        for(int x=0;x<=7;x++){
              led[x]=1;
              wait(speed);
              check();if(tog==1)break;
        }
        for(int x=0;x<=7;x++){
              led[x]=0;
              wait(speed);
              check();if(tog==1)break;
        }
        
    }
    if(pat==3){
        for(int x=0;x<=3;x++){
              led[x]=1;
              led[7-x]=1;
              wait(speed);
              check();if(tog==1)break;
        }
        for(int x=3;x>=0;x--){
              led[x]=0;
              led[7-x]=0;
              wait(speed);
              check();if(tog==1)break;
        }
  }
  }
  }