python-tcod
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python-tcod | entt | |
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17 | 79 | |
394 | 9,447 | |
1.8% | - | |
8.7 | 9.8 | |
9 days ago | 6 days ago | |
Python | C++ | |
BSD 2-clause "Simplified" License | MIT License |
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python-tcod
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FYI - The "SDL failed to get a vertex buffer for this Direct3D 9 rendering batch!" warning has been fixed with tcod version 16.1.1
More information about the update: https://github.com/libtcod/python-tcod/releases/tag/16.1.1
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Sharing Saturday #471
I'm currently writing another Python tutorial. I was hoping to have part-1 finished before this Sharing Saturday but it started while I'm still in the middle of updating the website. You can see the part-1 source I'm going with here and the resources I plan on using are organized here.
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Is really Python3 so slow with libtcod?
See this NumPy/SciPy cave generator for a performant example.
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Python libraries?
scipy.signal.convolve2d again, but used to count neighbors instead of masking them based on their direction. See this script for a cave generation example.
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Sharing Saturday #422
python-tcod | GitHub | Issues | Forum | Changelog | Documentation
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RoguelikeDev Does The Complete Roguelike Tutorial Starting June 28th 2022
The python-tcod repository is here. This is the full source of the Python port including all the C sources of libtcod which are included as a sub-module plus all the setup scripts invoked. Most source repos are linked from their PyPI package page.
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Considering changing from libtcod to pygame for tiles…
I'll be asking you to install tcod from the sdl branch of its Git repository. I'd recommended cloning the repo but that isn't required. You just need to tell pip install where the experimental source is.
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What does this OpenGL error mean?
This is a known issue. Libtcod will fallback to the SDL2 renderer and will then run correctly, so this error only notes that the OpenGL renderers failed to initialize but won't prevent libtcod programs from running.
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Can anyone assist me with an issue installing tcod in Arch Linux?
I found old bugs with similar issues (breaking on some sdl dependencies) on https://github.com/libtcod/python-tcod and filed an issue.
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Sharing Saturday #374
python-tcod | GitHub | Issues | Forum | Changelog | Documentation
entt
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Using Jolt with flecs & Dear ImGui: Game Physics Introspection
EnTT is a popular alternative to flecs for C++, which has different performance/memory characteristics.
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Focus: A simple and fast text editor written in Jai
https://pastebin.com/VPypiitk This is a very small experiment i did to learn the metaprogramming features. its an ECS library using the same model as entt (https://github.com/skypjack/entt). In 200 lines or so it does the equivalent of a few thousand lines of template heavy Cpp while compiling instantly and generating good debug code.
Some walkthrough:
Line 8 declares a SparseSet type as a fairly typical template. its just a struct with arrays of type T inside. Next lines implement getters/setters for this data structure
Line 46 Base_Registry things get interesting. This is a struct that holds a bunch of SparseSet of different types, and providers getters/setters for them by type. It uses code generation to do this. The initial #insert at the start of the class injects codegen that creates structure members from the type list the struct gets on its declaration. Note also how type-lists are a native structure in the lang, no need for variadics.
Line 99 i decide to do variadic style tail templates anyway for fun. I implement a function that takes a typelist and returns the tail, and the struct is created through recursion as one would do in cpp. Getters and setters for the View struct are also implemented through recursion
Line 143 has the for expansion. This is how you overload the for loop functionality to create custom iterators.
The rest of the code is just some basic test code that runs the thing.
- Crash Course: entity component system
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Introducing Ecsact
Since we wanted a common game simulation that would be on both the server and the client we looked into a few libraries that would fit our ECS needs. It was decided we were going to write this common part of our game in C++, but rust was considered. C++ was a familiar language for us so naturally EnTT and flecs came up right away. I had used EnTT before, writing some small demo projects, so our choice was made based on familiarity. In order to integrate with Unity we created a small C interface to communicate between our simulation code and Unity’s C#. Here’s close to what it looked like. I removed some parts for brevity sake.
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Sharing Saturday #472
Are you sure you don't want to use a C++ package manager? Libtcod is on Vcpkg and with that setup you could add the fmt library or EnTT. fmt fixes C++'s string handling and EnTT fixes everything wrong with the entities of the previous tutorials.
- Where can I find the juiciest, most complex and modern c++ code?
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What are the limits of blueprints?
There's also a performance question. While we can now use Blueprint nativization to convert Blueprints to C++ the result will be a fairly naive version, fast enough for most purposes but not if you're trying to push every bit of performance. This is where you're looking at making sure you're hitting things such as using the CPU cache as well as possible for an ECS system (Look at ENTT or Flecs if you want to see what they're about and why you'd want one), or a system needing to process massive amounts of data quickly such as the Voxel Plugin.
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any resources for expanding on ECS?
For a modern engine you’re probably best looking at Unity’s DOTS. You may also want to check out some of the different open source ECS libraries such as flecs and EnTT are two popular ones for C++, but there’s lots of them. Largely you’ll see lots of different approaches taken, all with their own pros and cons. Not all of them will be performant (some focus more on the design benefits) while others will be optimised for certain use cases. What you should prioritise will depend on your specific needs.
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DynaMix 2.0.0 Released
You can think of DynaMix as combining one of these libraries with an ECS like entt(https://github.com/skypjack/entt)
- Flecs – A fast entity component system for C and C++
What are some alternatives?
libtcod - A collection of tools and algorithms for developing traditional roguelikes. Such as field-of-view, pathfinding, and a tile-based terminal emulator.
flecs - A fast entity component system (ECS) for C & C++
roguelike-tutorial - Following http://rogueliketutorials.com/ ...but with Scala and Indigo.
Hazel - Hazel Engine
bracket-lib - The Roguelike Toolkit (RLTK), implemented for Rust.
raylib - A simple and easy-to-use library to enjoy videogames programming
procedural_generation_godot - Commits for basic procedural generation in Godot engine
flecs-lua - Lua script host for flecs
libtcod-vcpkg-template - A template for C++17 libtcod projects. This template uses Vcpkg to fetch dependencies.
Roguelike-Tutorial-2021 - Roguelike tutorial written hard with GDscript
rdl2021-tutorial - /r/roguelikedev Tutorial 2021
UnrealCLR - Unreal Engine .NET 6 integration