CODEWITHSUNDEEP
pythonpython-3.xeventstkintermouseevent
eggcelent
eggcelent

Reputation: 27

How can I update my tkinter game only when there is a click event?

I'm trying to make a game and I want to update the rungame() only after the mouseClickHandler was used.

and this is what I did in runGame():

 def runGame():
    global i,update,scoreDraw,questionA

    setInitialValues()
    drawObjects()

    if update == True:

        questionAsk()
        canvas.update()
        i += 1
        updateObjects()
        checkForCollisions()
        canvas.delete(scoreDraw,questionA)
        canvas.update()

and this is what runGame() does:

def setInitialValues():
    global score, time, update, worldGIF


    score = 0
    time = 0
    update = True
    worldGIF = PhotoImage(file = "WorldMap.gif")

def drawObjects():

    global worldMap,scoreStart,questionAA

    worldMap = canvas.create_image(650, 400, image = worldGIF)
    scoreStart = canvas.create_text(500,600,text=score, font= 'Times 24', anchor = W, fill = "white")
    questionAA = canvas.create_text(400,700, text="Hello!", font= "Times 20", anchor = W,fill = "white")
    canvas.update()

def questionAsk():
    global x_coord, y_coord, country, question, i
    global question
    question = "Where is", country[i],"?"

def updateObjects():
    global scoreDraw, questionA
    roundScore = round(score)
    scoreDraw = canvas.create_text(500,600,text=roundScore, font= 'Times 24', anchor = W, fill = "white")
    questionA = canvas.create_text(400,700, text=question, font= "Times 20", anchor = W,fill = "white")
    canvas.update()

def mouseClickHandler( event ):
    global i, xMouse,yMouse,answerx,answery,score,distance,update
    canvas.delete(scoreStart,questionAA)
    xMouse = event.x
    yMouse = event.y
    answerx = x_coord[i]
    answery = y_coord[i]
    delta_x = abs(xMouse - answerx)
    delta_y = abs(yMouse - answery)
    distance = sqrt((delta_x)**2+(delta_y)**2)
    score = score + distance
    update = True

But it never updates, for some reason, it just doesn't detect the update = True statement in the mouseClickHandler.

Extras:

x_coord, y_coord, country are all numpy arrays which I have made earlier and imported into here. worldGIF is just a picture of a map.

So tldr; I can't find a way to trigger the if update == True part in runGame() only where there is a Click.

These binds at the bottom:

root.after( 0, runGame )

canvas.bind( "<Button-1>", mouseClickHandler )

canvas.bind( "<Key>", keyDownHandler )

canvas.bind( "<KeyRelease>", keyUpHandler )

canvas.pack()

canvas.focus_set()

Upvotes: 0

Views: 148

Answers (1)

Bryan Oakley
Bryan Oakley

Reputation: 386342

If you want runGame to run on every mouse click, you're going to need to call it in mouseClickHandler (assuming that function is bound to a click event)

For example:

canvas.bind("<1>", runGame)

def mouseClickHandler( event ):
    global i, xMouse,yMouse,answerx,answery,score,distance,update
    ...
    update = True
    runGame()

However, ...

My guess is that you don't want runGame to run on every click, but only the code in the if block. If that's true, move that code to a separate block and call it from mouseClickHander, and eliminate the use of the update variable.

For example:

def runGame():
    global i,scoreDraw,questionA
    setInitialValues()
    drawObjects()
    updateGame()

def updateGame():
    global i

    questionAsk()
    canvas.update()
    i += 1
    updateObjects()
    checkForCollisions()
    canvas.delete(scoreDraw,questionA)
    canvas.update()

def mouseClickHandler( event ):
    global i, xMouse,yMouse,answerx,answery,score,distance
    canvas.delete(scoreStart,questionAA)
    ...
    score = score + distance
    updateGame()

Upvotes: 1

Related Questions