ba-st / winter

Winter is a 2D game engine for Pharo Smalltalk

Winter

Winter is a framework to develop games in 2D using Smalltalk.
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It's built on top of Storm from Esteban, providing a conceptual framework to simplify the creation of games in two dimensions.

License

• The code is licensed under MIT.
• The documentation is licensed under CC BY-SA 4.0.

Quick Start

• Download the latest Pharo 32 or 64 bits VM.
• Download a ready to use image from the release page
• Explore the documentation

Examples

To find some premade examples visit Winter Examples

Installation

To load the project in a Pharo image, or declare it as a dependency of your own project follow this instructions.

Contributing

Check the Contribution Guidelines

winter's Issues

Adapt to use ECS architecture

The idea is to change to Component Based Entity System (ECS) architecture and use composition to give more flexibility

No está funcionando correctamente el manejo de colisiones

A veces funciona el rebote de la pelotita contra la caja, a veces no.

Reify Animations Scheduler as a System module

Not clear how to run the Arkanoid game

I downloaded and compiled Chipmunk. But I later realized that this is not necessary since the libs are provided in the git repo.
I cloned the git repo in the same folder than the one that contains the images.
But apparently, the picture background.png is not found. Actually, it does not seem to be in your repo.

How can I run your game? Here is the error I obtain:

Separete examples in another repo

Increase Test Coverage

Now test coverage is 54% , it would be great for it to be around 75%

Recommendation to user data methods to store example images

Hi, I just installed Winter and wanted to test one of the examples, and got an error that an external file was missing (one of the images to be loaded).

I am playing around with making games in Smalltalk myself and I've managed tog get around the external files problem by importing the resources I need and converting them to base64 strings and store them in methods (that just returns the string), like this;

(In this case I'm loading an image that contains tiles, but I have used the same process (although a bit different in parts) for sound files too);

|img writeStream encoded byteArray newImg method|
img := PNGReadWriter formFromStream: 'dg_misc32.png' asFileReference binaryReadStream.
writeStream := WriteStream on: ByteArray new.
PNGReadWriter putForm: img onStream: writeStream.
encoded := writeStream contents base64Encoded.

"Decode the base64Encoded bytes and display the image"
byteArray := encoded base64Decoded.
newImg := PNGReadWriter formFromStream: byteArray readStream.
newImg asMorph openInHand.

method := (String streamContents: [:s |
s
nextPutAll: 'getEncoded';
nextPut: Character cr;
nextPut: Character tab;
nextPut: $^;
nextPut: $';
nextPutAll: encoded;
nextPut: $']).
"Add the method to the Sprite subclass"
MiscTiles compile: method

Mejorar la demo del juego

• que puedas subir o bajar además de moverte a izquierda o derecha
• agregar jugadores que cuando la pelotita los toque se mueran

Add camera support

Add atlas files support

SpiderInvasion example problem

The ship does not shoot. Bullet is created but not shown and do not collide.

Instantiation order errors in examples

Hello, all of the examples do not work for me in Pharo versions 6-8. When an example game is running through the method to initiate a scene, many of the objects in any example try to grab their image by referencing something like game assetManager but because they instantiate before the addComponent method is able to operate on them it tries to send this message to nil.

I kind of see that maybe at one point it was working because each object would only have its 'instantiatemethod when it hit theon: aGame method, but it seems like each Pharo version I tried has some 'new basicInit trait/behavior that's appended.

I'm currently using Ubuntu bionic beaver, tested pharo versions 6 7 and 8. Am I doing something wrong?

Native Physics

Replace actual physics simulation with native simulation like Chipmunk2D

Got an error following installation+example guides

Hi, I just tried to explore the project the first time. First, I downloaded Pharo 7 64bits, and then evaluated:

Metacello new
  baseline: 'Winter';
  repository: 'github://ba-st/Winter:release-candidate/source';
  load.

and then:

ArkanoidGame new start

which couldn't find an asset. I see that in there are assets for the example games in the file structure of this repository, but as I can wait, I prefer to report the issue here... maybe I just did something wrong.

Thanks.