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In the game, when you draw the colour is white but I need help with making it so when I tap the re button the draw colour is red and if I click the blue button the draw color will be blue.

Thanks in advance!

Here's the code:

from scene import *

class MyScene (Scene):
    def setup(self):
        self.lines = []
        self.button = Button(Rect(self.size.w/2+85, self.size.h/2-245, 75, 50))
        self.button.background = Color(1,1,1)
        self.button.stroke = Color(1,1,1)
        self.button.action = self.add_clicks
        self.add_layer(self.button)
        self.redbutton = Button(Rect(self.size.w/2-35, self.size.h/2-245, 75, 50))
        self.redbutton.background = Color(1,0,0)
        self.redbutton.stroke = Color(1,1,1)
        self.redbutton.action = self.turnred
        self.add_layer(self.redbutton)
        self.bluebutton = Button(Rect(self.size.w/2-155, self.size.h/2-245, 75, 50))
        self.bluebutton.background = Color(0,0,1)
        self.bluebutton.stroke = Color(1,1,1)
        self.bluebutton.action = self.turnblue
        self.add_layer(self.bluebutton)

    def add_clicks(self):
        run(MyScene())

    def turnred(self):
        stroke(1,0,0)

    def turnblue(self):
        stroke(0,0,1)

    def draw(self):
        background(0,0,0)
        self.button.draw()
        self.redbutton.draw()
        self.bluebutton.draw()
        fill(1,1,1)
        rect(0,180,320,15)
        rect(0,290,320,15)
        rect(92,87,15,310)
        rect(208,87,15,310)
        #draw colour
        stroke(1,1,1)
        stroke_weight(4)
        for l in self.lines:
            line(*l)

    def touch_moved(self, touch):
            x = touch.location.x
            y = touch.location.y
            ppos = touch.prev_location
            self.lines.append((ppos.x, ppos.y, x, y))

run(MyScene())

stroke_color.py

You do not need to draw each sublayer individually.

def draw(self):
    scene.background(0,0,0)
    self.root_layer.update(self.dt)
    self.root_layer.draw()

will draw all sublayers that have been added to a scene.Scene.