A3x - Optional Extension

Nested loops are loops within loops, and can be used to do some interesting things.

Paste the following code into a blank Python file and see what it does. Try to understand why it works, and experiment with it a bit. I'll also spend a bit of time going through it in class.

import op_arcade as oa
import op_arcade.constants_classes as cc

class Level_1(oa.View):

    def on_create(self):

        x = 100
        while x < 1000:
            y = 100
            while y < 700:
                coin = oa.Sprite(x, y, cc.Images.Items.COIN_GOLD)

                # ALSO SEE WHAT HAPPENS WHEN YOU UNCOMMENT THESE LINES
                # coin.color = (200, x/5, y/5)
                # coin.scale = x/700
                y += 100
            x += 100


    def on_step(self):
        self.clear()
        self.scene.draw()
        self.draw_grid()


oa.run(Level_1)

What sorts of effects or patterns could you get using this approach? Try to get creative. You're not limited to one sprite type!