Post by megamarc in Use Cases

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Hi!

That's just like @exelotl explained. The library only includes the rendering engine. Assets must be authored in standard external tools, and high level gameplay mechanics must be provided by the application layer. Same for sound effects support. That's why it's called a "graphics engine" and not a "game engine".

"Mode 7" in Tilengine works very similar to how it works on a real SNES or GBA. These classic consoles require providing an affine transformation matrix whose coefficients must be computed by the game developer, in order to scale/rotate/skew the background plane. Altering this transformation matrix on each scanline, progressively varying scaling factor, creates the illusion of 3D projection. In Tilengine I eased a bit the process, as you must provide the translation, rotation and scaling factors, and the engine computes the affine matrix for you. But the working principle is the same. So you won't find a pre-made "3D projected mode-7" function, as the original SNES doesn't have it either. It's just a clever trick.

You can setup Tilengine to render to a 32-bit RGBA texture instead to a window, so you can compose its output with other engines. I know it has already been done with Unity without much effort, I don't know about Godot capabilities in this regard.

Pixelevator1 year ago

Yeah, no clue what I'm doing. Downloaded it, clicked on install, something flashed on the screen for a tenth of a second. I've got my dunce hat on, running on Windows 11. I'm used to programs like Dragonruby or Folia where you write code in any text editor you like then run a single executable to see your results.

exelotl1 year ago (1 edit)

I'm not on Windows but you can try this:

1. Install Python.

2. Create a new folder for your project.
2a. Download the Win64 Tilengine release from itch, and copy Tilengine.dll into your project folder
2b. Download the PyTilengine repo as a zip file from github.com/megamarc/PyTilengine and copy src/tilengine.py to your project folder, as well as the assets folder from the examples.

3. Use a text editor to create mygame.py which contains the following code:

from tilengine import Engine, Window, Tilemap
engine = Engine.create(400, 240, 1, 0, 20)
engine.set_load_path("assets/sonic")
foreground = Tilemap.fromfile("sonic_md_fg1.tmx")
engine.layers[0].setup(foreground) 
window = Window.create()
while window.process():
    window.draw_frame()

Your folder structure should look like this:

MyProject
├── assets
│  └── sonic
│      ├── Base.png
│      ├── Base.tmx
│      ├── Base.tsx
│      ├── Sonic_md_bg1.png
│      ├── Sonic_md_bg1.tmx
│      ├── Sonic_md_bg1.tsx
│      ├── Sonic_md_fg1.png
│      ├── Sonic_md_fg1.tmx
│      ├── Sonic_md_fg1.tsx
│      └── Sonic_md_seq.sqx
├── mygame.py
├── tilengine.py
└── Tilengine.dll

4. Open a cmd.exe or powershell window in your project folder. (here's some ways to do that in Windows, it changes all the time) and type python3 mygame.py and hit enter to run your game.

itch.io

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