https://github.com/rdb/nim-panda3d

Proof of concept nim binding for Panda3D
https://github.com/rdb/nim-panda3d

nim nim-lang nim-language panda3d panda3d-game-engine

Last synced: about 1 month ago
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Proof of concept nim binding for Panda3D

• Host: GitHub
• URL: https://github.com/rdb/nim-panda3d
• Owner: rdb
• Created: 2022-05-06T14:48:52.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2024-01-13T15:33:17.000Z (about 1 year ago)
• Last Synced: 2024-11-04T03:40:44.688Z (3 months ago)
• Topics: nim, nim-lang, nim-language, panda3d, panda3d-game-engine
• Language: Nim
• Homepage: https://www.panda3d.org/
• Size: 4.87 MB
• Stars: 8
• Watchers: 1
• Forks: 5
• Open Issues: 4
• Metadata Files:
  • Readme: README.md

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README

        
This is a proof of concept nim binding for Panda3D.

There is a subset of the DIRECT API implemented as well.  It is deliberately

incomplete, only the parts that can't be trivially reimplemented using the C++

API are intended to be supported.

Some things to keep in mind:

* Reference-counted types like PandaNode are always by-ref, using Panda's

  reference counting system, just like in Python.  To create an instance, use

  something like `newPandaNode()`.  These types are `nil`lable.

* Other types, like NodePath, are stored by-value.  Create instances using

  `initNodePath()` and the like.

* The typical code convention in nim is camelCase, but snake_case is supported

  as well by virtue of how nim's identifier resolution works.

* Both property interfaces and getter/setter methods are supported.

* Tuples are accepted in place of vectors, but be sure that the types of the

  elements are correct.

* The ShowBase constructor doesn't open a window.  Call `openDefaultWindow()`.

* The `direct` modules are woefully incomplete, see above.

Here is a brief example, see `test.nim` for the complete Hello World tutorial.

```nim

import direct/showbase

import direct/actor

import panda3d/core

var base = ShowBase()

base.openDefaultWindow()

var env = loader.loadModel("models/environment")

env.reparentTo(render)

env.setScale(0.25, 0.25, 0.25)

env.setPos(-8, 42, 0)

var pandaActor = Actor()

pandaActor.loadModel("models/panda-model")

pandaActor.loadAnims({"walk": "models/panda-walk4"})

pandaActor.setScale(0.005, 0.005, 0.005)

pandaActor.reparentTo(render)

pandaActor.loop("walk")

base.run()

```

Building the example:

```

make test

./test

```