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1 | +# Rust playground | |
2 | + | |
3 | +Things I have recently done while learning the Rust programming language. | |
4 | + | |
5 | +## Synopsis | |
6 | + | |
7 | +Change in one of the toplevel subdirectories and try `cargo build` or | |
8 | +`cargo run`. Maybe not everything is working oob. Feel free to fix whatever | |
9 | +you want. | |
10 | + | |
11 | +## Description | |
12 | + | |
13 | +Various small examples I have tried while learning rust. The biggest and | |
14 | +currently most active project is **fractional** which started as an | |
15 | +implamentation of a rational number data type and then switched to a 3D | |
16 | +math playground visualizing using **XCB** (in future it might also use | |
17 | +a **HTML5 Canvas** for drawing as WebAssembly application. | |
18 | +Using fractions with 3D math has several drawbacks: | |
19 | + | |
20 | +1. A huge part of 3D math is non rational, like sin, cos, tan and sqrt. | |
21 | +2. The numerator and denominator tend to become very huge while nearing to non | |
22 | + rational numbers and reduction is difficult and time consuming. | |
23 | +3. Because of 2 it is way slower than the floating point calculation (at least | |
24 | + with a decent coprocessor). | |
25 | + | |
26 | +Anyway, implementing the vector math stuff for both fractions and floating | |
27 | +point was a nice playground for generics and traits. In future I might add | |
28 | +another data type which implements the math as done by David Braben for the | |
29 | +elite computer game. | |
30 | + | |
31 | +## Requirements | |
32 | + | |
33 | +### Always | |
34 | + | |
35 | +- A recent version of the Rust programming language as well as tooling. | |
36 | + Currently I use Rust 1.39.0. | |
37 | + | |
38 | +### For fractional | |
39 | + | |
40 | +- A running X Server with **XCB** and **X11-SHM** extentions | |
41 | + | |
42 | +## Dependencies | |
43 | + | |
44 | +... | |
45 | + | |
46 | +## Contributing | |
47 | + | |
48 | +Feel free to make pull requests as you like, no guarantee that the will be | |
49 | +added. | |
50 | + | |
51 | +## License | |
52 | + | |
53 | +Copyright © 2020 Georg Hopp | |
54 | + | |
55 | +This program is free software: you can redistribute it and/or modify | |
56 | +it under the terms of the GNU General Public License as published by | |
57 | +the Free Software Foundation, either version 3 of the License, or | |
58 | +(at your option) any later version. | |
59 | + | |
60 | +This program is distributed in the hope that it will be useful, | |
61 | +but WITHOUT ANY WARRANTY; without even the implied warranty of | |
62 | +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
63 | +GNU General Public License for more details. | |
64 | + | |
65 | +You should have received a copy of the GNU General Public License | |
66 | +along with this program. If not, see <http://www.gnu.org/licenses/>. | |
67 | + | |
68 | +## Author | |
69 | + | |
70 | +Georg Hopp <georg@steffers.org> | ... | ... |
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