Playing Simon on Pico

So we had some practice with LEDs and Switches till now, This means we have input and output now ! Game time ! In this post I am going to document a quick write of Simon Says ( like game) on the Pico

Game elements consists of red, blue, yellow & green LEDs and buttons. We are going to consider simple rules

1. The game starts when all 4 LEDs blink at the same time thrice
2. Each level will have a sequence of length corresponding to that level, for example Level 1 will have only one LED lit whereas Level 5 will have a sequence of five LEDs lit
3. Once sequence is flashed on LEDs, player has to enter the same sequence using the corresponding color buttons
4. If the player enters the sequence correctly, the game moves to next level till all levels are complete
5. If the player completes all levels successfully, the Green LED will have a solid glow
6. If the player incorrectly enters any sequence, the Red LED will have a solid glow
7. Press reset for starting over

# import machine, imports the Pico's functions and definitions
import machine
# imports time based functions
import utime

# imports random function gen
import random

#Wait time between button clicks
buttonWaitTime = 0.25
#Blink wait time
blinkWaitTime = 0.5
#BlinkCount for start and end
blinkCount = 3

#Global Level counters
currLevel = 1
currLevelSequence = []
levelSequence = []
ledColour = ['R','B','Y','G']
maxLevel = 5
GameStatus = 'WIN'

# Define LEDs
redLed    = machine.Pin(02, machine.Pin.OUT)
blueLed   = machine.Pin(03, machine.Pin.OUT)
yellowLed = machine.Pin(04, machine.Pin.OUT)
greenLed  = machine.Pin(05, machine.Pin.OUT)

# Define buttons
redButton    = machine.Pin(12, machine.Pin.IN, machine.Pin.PULL_DOWN)
blueButton   = machine.Pin(13, machine.Pin.IN, machine.Pin.PULL_DOWN)
yellowButton = machine.Pin(14, machine.Pin.IN, machine.Pin.PULL_DOWN)
greenButton  = machine.Pin(15, machine.Pin.IN, machine.Pin.PULL_DOWN)

# Variable Definitions
isNewGame = False

# indicator for game starting or ending, Blinks blinkCount times
def gameStart():
    for iCount in range(blinkCount):        
        redLed.value(1)
        blueLed.value(1)
        yellowLed.value(1)
        greenLed.value(1)
        utime.sleep(blinkWaitTime)
        redLed.value(0)
        blueLed.value(0)
        yellowLed.value(0)
        greenLed.value(0)
        utime.sleep(blinkWaitTime)

# Game status indicator
def gameWin():     
    greenLed.value(1)
    utime.sleep(blinkWaitTime)

def gameLost():     
    redLed.value(1)
    utime.sleep(blinkWaitTime)
        
# Create Level for the game
def createLevel (currLevel):    
    for icount in range(currLevel):
        levelSequence.append(random.choice(ledColour))
    return (levelSequence)

# Check Userinputs, Return true if the sequence is same as the random level generated
# Else returns false
def checkButtons (currLevel,currLevelSequence):
    iCount = 0
    print ("Current count : " , iCount)
    print ("currLevel : " , currLevel)
    while (iCount < currLevel):
        
        if redButton.value() == 1:            
            utime.sleep(buttonWaitTime)
            if currLevelSequence[iCount] == 'R' :
                iCount = iCount + 1         
            else:
                return False
            
        if blueButton.value() == 1:            
            utime.sleep(buttonWaitTime)
            if currLevelSequence[iCount] == 'B' :
                iCount = iCount + 1         
            else:
                return False
            
        if yellowButton.value() == 1:            
            utime.sleep(buttonWaitTime)
            if currLevelSequence[iCount] == 'Y' :
                iCount = iCount + 1         
            else:
                return False
            
        if greenButton.value() == 1:            
            utime.sleep(buttonWaitTime)
            if currLevelSequence[iCount] == 'G' :
                iCount = iCount + 1         
            else:
                return False
            
    # if all choices are correct then return True  
    return True

# Display the randomly generated sequence on the LEDs
def ledDisplay(currLevelSequence):
    iLen = len(currLevelSequence)
    for iCount in range(iLen):
        if currLevelSequence[iCount] == 'R' :
            redLed.value(1)
            utime.sleep(blinkWaitTime)
            redLed.value(0)
            utime.sleep(blinkWaitTime)
        if currLevelSequence[iCount] == 'B' :
            blueLed.value(1)
            utime.sleep(blinkWaitTime)
            blueLed.value(0)
            utime.sleep(blinkWaitTime)
        if currLevelSequence[iCount] == 'Y' :
            yellowLed.value(1)
            utime.sleep(blinkWaitTime)
            yellowLed.value(0)
            utime.sleep(blinkWaitTime)
        if currLevelSequence[iCount] == 'G' :
            greenLed.value(1)
            utime.sleep(blinkWaitTime)
            greenLed.value(0)
            utime.sleep(blinkWaitTime)
    
     

# Start the game with blinking lights
gameStart()

#Create levels
for iLevel in range(1,maxLevel+1):
    currLevelSequence.clear()
    currLevelSequence = createLevel(iLevel)    
    print (currLevelSequence)
    
    # Display the level in LEDs
    ledDisplay (currLevelSequence)
    
    if(checkButtons(iLevel,currLevelSequence)):
        pass
    else:
        GameStatus = 'LOST'
        break

#Final Game status
if GameStatus == 'LOST' :
    gameLost()
else:
    gameWin()

PS – the code can be still optimized, this is a quick intro to test and get started with Pico