lordmauve/pgzero

Make it possible to inject additional image into image loader cache

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#254 opened on May 15, 2021

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 (3 comments) (0 reactions) (0 assignees)Python (472 stars) (185 forks)batch import
enhancementgood first issue

Description

Originally created by @jhutar in #232

I have images dirt.png and bush.png and with this I can create temporary image on the fly when starting the game (so my actor do not need to draw two overlapping images when running the game):

import pygame.image
img_dirt = pygame.image.load('images/dirt.png').convert_alpha()
img_bush = pygame.image.load('images/bush_small.png').convert_alpha()
img_dirt.blit(img_bush, (0,0))
images.add('tmp_dirt_with_bush', img_dirt)
my_actor.image = 'tmp_dirt_with_bush'

Please let me know if it makes sense.

Contributor guide

Tech stack
python
Domain
api
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Pythonpgzero basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Examine the image loading module in pgzero, likely in pgzero/loader.py, to understand how images are cached. The feature should allow adding a pre loaded Pygame surface to the cache via a method like `images.add(name, surface)`. Review the existing `images` object to see if it's a simple dictionary or has a class, and ensure the new method fits the API.