shapes/
shapes.rs

1//! Demonstrates common shape drawing.
2
3use qilin::game::context::GameContext;
4use qilin::game::game::Game;
5use qilin::render::canvas::Canvas;
6use qilin::render::color::Color;
7use qilin::render::sketch::Sketch;
8use qilin::scene::Scene;
9use qilin::simplified::vec2;
10use qilin::types::{GameConfig, FPS30};
11use qilin::ScaleMode;
12use qilin::WindowOptions;
13
14struct ShapeScene;
15
16impl Scene for ShapeScene {
17    // create new empty scene
18    fn new() -> Self
19    where
20        Self: Sized,
21    {
22        Self
23    }
24
25    // gets called when game enters current scene
26    fn enter(&mut self) { println!("What do you call a fake noodle?") }
27
28    // gets called when window requests draw updates
29    fn update(&mut self, canvas: &mut Canvas, _ctx: &mut GameContext) {
30        // draw a sketch containing a single shape/line
31        canvas.draw(
32            Sketch::new()
33                // draw line from (0, 0) to (300, 600) with color green
34                .line(vec2(0, 0), vec2(300, 600), Color::GREEN),
35        );
36
37        // draw a sketch containing multiple shapes
38        canvas.draw(
39            Sketch::new()
40                // draw circle at (100, 100) with radius of 30 and color red
41                .circle(vec2(100, 100), 30, Color::RED)
42                // draw rectangle at (300, 300) with width of 100 and height of 100 and color blue
43                .rect(vec2(300, 300), 100, 100, Color::BLUE)
44                .oval(vec2(400, 200), 120, 60, Color::CYAN),
45        );
46    }
47
48    fn fixed_update(&mut self, _canvas: &mut Canvas, _ctx: &mut GameContext) {
49        // Will be called X times per second.
50        // This ensures, physics are applied independent of frame-rate.
51        // See https://docs.unity3d.com/ScriptReference/MonoBehaviour.FixedUpdate.html for FixedUpdate() in Unity.
52    }
53
54    // gets called when game exits current scene
55    fn exit(&mut self) { println!("An impasta!") }
56}
57
58fn main() {
59    Game::new::<ShapeScene>() // create game object with ShapeScene as entry scene
60        .with_config(GameConfig {
61            title: "My Shapes".to_string(), // set window title
62            update_rate_limit: FPS30,       // limit update rate to 30 fps, default is 60 fps
63            width: 800,                     // set initial width
64            height: 600,                    // set initial height
65            fixed_time_step: Default::default(), // for better docs, see GameConfig or examples/move.
66            window: WindowOptions {
67                scale_mode: ScaleMode::AspectRatioStretch, // scale pixels to fit in aspect ratio
68                resize: true,                              // make window resizeable
69                ..Default::default()
70            },
71        })
72        .play()
73        .expect("Failed to play game");
74}
shapes/shapes.rs

shapes/
shapes.rs
