Moved app to game

[kaka/rust-sdl-test.git] / src / app.rs

diff --git a/src/app.rs b/src/app.rs
deleted file mode 100644 (file)
index 3efa791..0000000
--- a/src/app.rs
+++ /dev/null
@@ -1,137 +0,0 @@
-use rand::Rng;
-use sdl2::event::Event;
-use sdl2::EventPump;
-use sdl2::keyboard::Keycode;
-use sdl2::pixels::Color;
-use sdl2::render::BlendMode;
-use sdl2::render::Canvas;
-use sdl2::video::Window;
-
-use {SCREEN_HEIGHT, SCREEN_WIDTH};
-use boll::*;
-use common::Point2D;
-use sprites::SpriteManager;
-use NS_PER_FRAME;
-use point; // defined in common, but loaded from main...
-
-pub type Nanoseconds = u64;
-
-pub struct App {
-    pub canvas: Canvas<Window>,
-    pub event_pump: EventPump,
-    pub sprites: SpriteManager,
-    pub state: Box<AppState>,
-}
-
-impl App {
-    pub fn new() -> App {
-        let context = sdl2::init().unwrap();
-        sdl2::image::init(sdl2::image::InitFlag::PNG).unwrap();
-        let window = context.video().unwrap().window("SDL test", SCREEN_WIDTH, SCREEN_HEIGHT)
-            .position_centered()
-            .opengl()
-            .build()
-            .unwrap();
-        context.mouse().show_cursor(false);
-        let mut canvas = window.into_canvas().build().unwrap();
-        canvas.set_blend_mode(BlendMode::Add);
-        canvas.set_draw_color(Color::RGB(0, 0, 0));
-        canvas.clear();
-        canvas.present();
-        let event_pump = context.event_pump().unwrap();
-        let sprites = SpriteManager::new(canvas.texture_creator());
-        App {
-            canvas,
-            event_pump,
-            sprites,
-            state: Box::new(ActiveState::new()),
-        }
-    }
-
-    pub fn load_sprites(&mut self, sprites: &[(&'static str, &str)]) {
-        for (name, file) in sprites {
-            self.sprites.load(name, file);
-        }
-    }
-}
-
-pub trait AppState {
-    fn update(&mut self, dt: Nanoseconds);
-    fn render(&self, canvas: &mut Canvas<Window>);
-    fn leave(&self);
-    fn on_event(&mut self, event: Event);
-}
-
-type Bollar = Vec<Box<dyn Boll>>;
-
-pub struct ActiveState {
-    bolls: Bollar,
-    boll_size: u32,
-}
-
-impl ActiveState {
-    fn new() -> ActiveState {
-        ActiveState {
-            bolls: Bollar::new(),
-            boll_size: 1,
-        }
-    }
-
-    fn change_boll_count(&mut self, delta: i32) {
-        if delta > 0 {
-            for _i in 0..delta {
-                self.add_boll();
-            }
-        } else if delta < 0 {
-            for _i in 0..delta {
-                self.bolls.pop();
-            }
-        }
-    }
-
-    fn add_boll(&mut self) {
-        let mut rng = rand::thread_rng();
-        self.bolls.push(Box::new(SquareBoll {
-            pos: point!(rng.gen_range(0, SCREEN_WIDTH) as f64, rng.gen_range(0, SCREEN_HEIGHT) as f64),
-            vel: point!(rng.gen_range(-2.0, 2.0), rng.gen_range(-2.0, 2.0)),
-        }));
-    }
-}
-
-impl AppState for ActiveState {
-    fn update(&mut self, dt: Nanoseconds) {
-        for b in &mut self.bolls {
-            b.update();
-        }
-
-        match dt {
-            ns if ns < (NS_PER_FRAME - 90_0000) as u64 => { self.change_boll_count(100) }
-            ns if ns > (NS_PER_FRAME + 90_0000) as u64 => { self.change_boll_count(-100) }
-            _ => {}
-        }
-    }
-
-    fn render(&self, canvas: &mut Canvas<Window>) {
-        for b in &self.bolls {
-            b.draw(canvas, self.boll_size);
-        }
-    }
-
-    fn leave(&self) {
-        println!("number of bolls: {}", self.bolls.len());
-    }
-
-    fn on_event(&mut self, event: Event) {
-        match event {
-            Event::KeyDown { keycode: Some(Keycode::KpPlus), .. } => { self.boll_size = std::cmp::min(self.boll_size + 1, 32) }
-            Event::KeyDown { keycode: Some(Keycode::KpMinus), .. } => { self.boll_size = std::cmp::max(self.boll_size - 1, 1) }
-            Event::MouseMotion { x, y, .. } => {
-                self.bolls.push(Box::new(CircleBoll::new(
-                    point!(x as f64, y as f64),
-                    point!(0.0, 0.0),
-                )))
-            }
-            _ => {}
-        }
-    }
-}