Flappy Bird

--# Main
-- Flappy Bird

function setup()
    displayMode(FULLSCREEN) --sets display to full screen
    birdX=WIDTH/3 --the x position of the bird will be a third of the screen's width
    birdY=HEIGHT/2 --the bird will be half way up the screen
    birdSpeed=-(1/4)--the bird starts falling at a rate of 1/4 pixel every time the draw function runs
    score=0 --score starts at 0
    timer=0 --timer starts at 0
    gameState=1 --means the game starts with the first menu where it says "touch anywhere to begin"
    cloud1X=WIDTH --the first cloud starts all the way on the right side of the screen
    cloud1Y=math.random(100,550)--first cloud starts at a random y position
    cloud1Speed=-2 --first cloud will move to the left 2 pixels every time draw function runs
    cloud1img=readImage("Platformer Art:Cloud 2")--gives image for first cloud
    cloud2X=WIDTH --second cloud starts all the way on the right side of the screen
    cloud2Y=math.random(100,550) --second cloud starts at random y position
    cloud2Speed=-3 --second cloud will move to the left 3 pixels every time draw function runs
    cloud2img=readImage("Platformer Art:Cloud 3") --gives image for second cloud
    birdstandingimg=readImage("Platformer Art:Monster Standing") --a picture of the monster standing still, used in                                                                                                        first menu
    birdmovingimg=readImage("Platformer Art:Monster Moving")--a picture of the monster moving, used in playing mode
    deadbirdimg=readImage("Platformer Art:Monster Squished")--a picture of the monster squished, shows when it hits a pipe

    pipe1bottomx=WIDTH --bottom and top of pipe will both start on right side of screen
    pipe1topx=WIDTH
    pipe1bottomy=0 --bottom of bottom part of pipe will be at the bottom of the screen
    pipe1width=100 --width of pipe in pixels
    pipe1bottomheight=math.random(100,550) --the bottom part of the pipe will have a random height
    pipe1topy=pipe1bottomheight+200 --the bottom of the top part of the pipe will be 200 pixels higher than the top of the bottom pipe
    pipe1topheight=HEIGHT-pipe1topy --makes it so the height of the top part of the pipe will go to the top of the screen
    pipe1speed=3 --the pipe will move across the screen 3 pixels every time draw function runs

    pipe2bottomx=WIDTH --these are all the same settings as the first pipe - this makes it so later there will be two sets of pipes that will alternate going across the screen
    pipe2topx=WIDTH
    pipe2bottomy=0
    pipe2width=100
    pipe2bottomheight=math.random(100,550)
    pipe2topy=pipe2bottomheight+200
    pipe2topheight=HEIGHT-pipe2topy
    pipe2speed=3
end

function draw()
    background(71, 151, 217, 255)

    --1st menu
if gameState==1 then
sprite(birdstandingimg,birdX,birdY,80,60) --if it's the first menu, then show the picture of the stationary monster
cloud1X=cloud1X+cloud1Speed --makes it so the cloud will move
sprite(cloud1img,cloud1X,cloud1Y) --draws the first cloud image
cloud2X=cloud2X+cloud2Speed --makes it so the other cloud will move
sprite(cloud2img,cloud2X,cloud2Y) --draws the second cloud image
fontSize(48) --sets the suze of the text
font("Futura-CondensedExtraBold") --sets the font of the text
fill(255,226,0,255) --sets the color of the text
text("Bouncy Monster -",WIDTH/2,700) --writes this text in the middle of the screen at y=700
text("Touch anywhere to begin", WIDTH/2,650)--writes this text just below the last line of text
end

    --playing
if gameState==2 then --if it is in gameplay mode, then the bird starts falling
          birdSpeed=birdSpeed-1 --makes the bird accelerate as it falls because the speed increases every frame
        birdY=birdY+birdSpeed --makes the y position of the bird decrease to make it seem like it's falling
        sprite(birdmovingimg,birdX,birdY,80,60) --draws the picture of the moving monster
    timer=timer+(1/60) --makes it so timer will be 1 after 1 second and so on
    if timer>=1 then --if 1 second has passed, then launch the first pipe
    pipe1bottomx=pipe1bottomx-pipe1speed --makes the bottom part move
    fill(30, 145, 39, 255) --sets the color of the pipe
    rect(pipe1bottomx,pipe1bottomy,pipe1width,pipe1bottomheight) --draws bottom part of first pipe
    pipe1topx=pipe1topx-pipe1speed --makes the top part of the pipe move
    rect(pipe1topx,pipe1topy,pipe1width,pipe1topheight) --draws top part of first pipe
            end
    if pipe1bottomx+pipe1width<=0 then pipe1bottomx=WIDTH pipe1bottomheight=math.random(100,550) --if the bottom part of the pipe is off the left side of the screen, then it restarts back at the right side with a new random height
        end
    if pipe1topx+pipe1width<=0 then pipe1topx=WIDTH pipe1topy=pipe1bottomheight+200 pipe1topheight=HEIGHT-pipe1topy --if the top part of the pipe is off the left side of the screen, then it restarts back at the right side with a new random height
        end

    if timer>=4.25 then --if 3.25 seconds have passed since the first pipe was launched, then launch the second one
    pipe2bottomx=pipe2bottomx-pipe2speed --makes bottom part move
    rect(pipe2bottomx,pipe2bottomy,pipe2width,pipe2bottomheight) --draws bottom part of 2nd pipe
    pipe2topx=pipe2topx-pipe2speed --makes top part move
    rect(pipe2topx,pipe2topy,pipe2width,pipe2topheight) --draws top part of 2nd pipe
    if pipe2bottomx+pipe2width<=0 then pipe2bottomx=WIDTH pipe2bottomheight=math.random(100,550)
        end --if the bottom part of the pipe is off the left side of the screen, then it restarts back at the right side with a new random height
    if pipe2topx+pipe2width<=0 then pipe2topx=WIDTH pipe2topy=pipe2bottomheight+200 pipe2topheight=HEIGHT-pipe2topy
        end --if the top part of the pipe is off the left side of the screen, then it restarts back at the right side with a new random height
--when pipe 1 restarts, pipe 2 will still be on the screen so it will give the appearance that there are multiple pipes when really it is just two alternating
    end

        if birdX>=pipe1bottomx and birdX<=pipe1bottomx+2 then score=score+1
        end --when the monster passes the first pipe, add a point to the score
        if birdX>=pipe2bottomx and birdX<=pipe2bottomx+2 then score=score+1
        end --when the monster passes the second pipe, add a point to the score
    fill(255,226,0,255) --sets color of text
    font("Optima-ExtraBlack") --sets font of text
    fontSize(48) --sets size of text
    text(score,WIDTH/2,700) --the score will be displayed at the top of the screen in the middle

    --collision detection
    if birdX+40>=pipe1bottomx and birdX+40<=pipe1bottomx+pipe1width and birdY-40<=pipe1bottomheight then
        gameState=3
    end --if the monster plus its radius is within the 1st bottom rectangle (pipe), then go into game over menu
    if birdX+40>=pipe1topx and birdX+40<=pipe1topx+pipe1width and birdY+25>=pipe1topy then
        gameState=3
        end --if the monster plus its radius is within the 1st top rectangle (pipe) then go into game over menu
    if birdX+40>=pipe2bottomx and birdX+40<=pipe2bottomx+pipe2width and birdY-40<=pipe2bottomheight then
        gameState=3
    end --if the monster plus its radius is within the 2nd bottom rectangle (pipe), then go into game over menu
    if birdX+40>=pipe2topx and birdX+40<=pipe2topx+pipe2width and birdY+25>=pipe2topy then
        gameState=3
        end --if the monster plus its radius is within the 2nd top rectangle (pipe), then go into game over menu

    if birdY+30<=0 then gameState=3 --if the bird has gotten to the bottom if the screen then it goes to game over menu
    end
end --end pf gameplay mode

--game over menu
    if gameState==3 then --if its in game over menu, then...
        birdSpeed=birdSpeed-1 --the monster still falls and accelerates while doing so
        birdY=birdY+birdSpeed --makes it appear that the monster is falling
        sprite(deadbirdimg,birdX,birdY,100,70) --shows picture of dead monster when it hits the pipe
            pipe1bottomx=WIDTH+50 --makes all of the pipes go off the screen
            pipe1topx=WIDTH+50
            pipe2bottomx=WIDTH+50
            pipe2topx=WIDTH+50
       if birdY<=0 then --once the dead monster has fallen off the screen, then show the score and the "Try Again" button
            fill(71,151,217,255) --covers up yellow score by drawing rectangle same color as background
            rect((WIDTH/2)-50,675,100,50)
            fill(255, 0, 27, 255) --sets color of button
            rect((WIDTH/2)-150,300,300,100) --draws button in the shape of a rectangle
            fill(255, 226, 0, 255) --sets color of text
            text("Game over! Your score is "..score,(WIDTH/2),600) --displays final score at top of screen
            text("Try again",WIDTH/2,350) --says try again inside button
        end --ends if statement
    end --ends game over menu
end --ends the draw function

function touched(touch)
 if gameState==1 then
          if  touch.state==BEGAN then gameState=2 --if the user touches the screen while it's in the first menu, then it goes into gameplay mode
            end
end
    if gameState==2 then
            if touch.state==BEGAN then birdSpeed=15 --if the user touches the screen while it's in gameplay mode, then the bird speed increases by 15 which makes it "jump"
        end
    end
        if gameState==3 then
            if touch.x>=(WIDTH/2-150) and touch.x<=(WIDTH/2+150) and touch.y>=300 and touch.y<=400
            then gameState=1 --if the user's touch is inside the "Try Again" button then it goes back to the beginning menu
            birdX=WIDTH/3 --restarts bird settings
            birdY=HEIGHT/2
            pipe1bottomx=WIDTH --restarts all pipe settings
            pipe1topx=WIDTH
            pipe2bottomx=WIDTH
            pipe2topx=WIDTH
            timer=0 --restarts timer
            cloud1X=WIDTH --restarts clouds so they appear in the beginning menu again
            cloud2X=WIDTH
            score=0 --sets score back to zero
        end


end
end