Help! I need help thinking of python projects I can do.

[Bumbo Cactoni]

Thank you!
Also, I kinda have a slightly random question. What is your favorite app or website to learn python on? I use SoloLearn right now, since it’s free.

[mikael]

@robStacks, suggest moving the Vector implementation to a file called vector.py in site-packages. Then you can import it and it does not distract you from your own code.

[robStacks]

@mikael Yes thx for pointing that out to me did so and is so much better👍🏻

[Bumbo Cactoni]

Yay! I’ve thought of a good project to do! Hopefully it won’t be too complicated... by the way, does anyone know how to display a picture? I’ve tried googling it, but it’s all a load of mumbo jumbo to me.

[stephen]

@Bumbo-Cactoni

Using Image Module:

import Image

with Image.open('my_img.png') as img:
    img.show()
    

Using ui Module:

import ui

class MyView(ui.View):
    def __init__(self, *args, **kwargs):
        self.img = ui.Image.named('my_img.png')
        self.iv = ui.ImageView(
            image=self.img,
            width=ui.get_screen_size()[0],
            height=ui.get_screen_size()[1])
        self.add_subview(self.iv)
        
MyView().present('fullscreen')

Using scene Module:

import scene

class MyScene(scene.Scene):
    def setup(self):
        self.sn=scene.SpriteNode(
            texture=scene.Texture('my_img.png'),
            parent=self,
            position=self.size/2)
            
scene.run(MyScene())

[Bumbo Cactoni]

@stephen
Thank you!

[stephen]

@Bumbo-Cactoni Your Welcome

[Bumbo Cactoni]

Now I have another question: How do you display a picture that you can move with your finger?

[stephen]

@Bumbo-Cactoni

😁 I like making these examples! Give me just a few.

[Bumbo Cactoni]

@stephen
Have you ever seen, like, those super simple block-programming apps? That they use to semi-teach people to program?

[Bumbo Cactoni]

I am trying to make my own block-programming thingy, but I don’t know how to create the blocks, make them movable, or even make them connect together.

[stephen]

@Bumbo-Cactoni

Like minecraft/terreria?

[Bumbo Cactoni]

@stephen

You mean like moving the items in the inventories?
If so, yes, that is kinda what I mean.

[stephen]

@Bumbo-Cactoni

from scene import *

def Dirt(parent, pos, size=(64, 64)):
    sn=SpriteNode(
        texture=Texture('plf:Ground_GrassCenter'),
        parent=parent,
        anchor_point=(0.0, 0.0),
        size=size,
        position=pos)
    return sn

def Stone(parent, pos, size=(64, 64)):
    sn=SpriteNode(
        texture=Texture('plf:Ground_DirtCenter'),
        parent=parent,
        anchor_point=(0.0, 0.0),
        size=size,
        position=pos)
    return sn

def fixed_position(x, fixed_val=64):
    return x - x%fixed_val
        
class MyScene(Scene):
    def setup(self):
        self.active_block=None
        self.anchor_point=(0.0, 0.0),
        self.dirt_button=Dirt(self, (self.size[0]/2-80, self.size[1]-196))
        self.stone_button=Stone(self, (self.size[0]/2+80, self.size[1]-196))
        
    
    
    def touch_began(self, touch):
        if touch.location in self.dirt_button.frame:
            self.active_block=Dirt(self, touch.location)
        if touch.location in self.stone_button.frame:
            self.active_block=Stone(self, touch.location)
    
    def touch_moved(self, touch):
        if self.active_block:
            self.active_block.position=touch.location
        
        
    def touch_ended(self, touch):
        x, y = self.active_block.position
        self.active_block.position=(fixed_position(x), fixed_position(y))
        self.active_block=None
  
run(MyScene())

[Bumbo Cactoni]

Thank you! I would not have been able to figure that out on my own.

[Bumbo Cactoni]

@stephen
Also, is there any way to set my own sprite/look for the objects? Like, make the dirt one look however I want it to?

[ccc]

texture=Texture('plf:Ground_DirtCenter') is what sets the look. Other textures (images) are available to you as discussed in the Pythonista docs You can access built-in images in Pythonista using the [+] button at the top of the editor.

[stephen]

@Bumbo-Cactoni said:

Thank you! I would not have been able to figure that out on my own.

no problem 😎 and im sure you would of got the hang of it. its only intimidating at first then once you get a couple projects done it goes smoothly.

@Bumbo-Cactoni said:

@stephen
Also, is there any way to set my own sprite/look for the objects? Like, make the dirt one look however I want it to?

just create a png jpg or tiff image, then import it and inside Texture() pass the string path or ui.Image for the one you made. keep in mind the balance of filesize to quality. and resizing if your going to use multiple coppies you want to change scale instead of size.

freindly tip:

Use a dict to cache your Texture for performance.

class MyScene(Scene):
    def setup(self):
        self.cache={"dirt":Texture('path/img1.png', "stone":Texture('path/img2.png'}
    
    def Dirt(self):
        node=SpriteNode(
            texture=self.cache['dirt'],
            parent=parent,
            anchor_point=(0.0, 0.0),
            size=size,
            position=pos)
        return node

instead of creating a new Texture each time

[Drizzel]

@Bumbo-Cactoni I'm a bit late to the party, but you could always check out Cambidge IGCSE Computer Science past papers. Just search for them in your favourite search engine. They provide beginner level excercises and solutions, since the exams are aimed at students with 2 years of coding experience.
Just be aware that for every year, there's one paper with a coding excercise (the one you want) and one paper with theory (boring).

I had to pass this exam in 2018, just as an example
There's more here.

[Bumbo Cactoni]

Thank you