Refactored level generation + fixed bug with wall finding

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

diff --git a/src/core/game.rs b/src/core/game.rs
index 429a2ee..e8893de 100644 (file)
--- a/src/core/game.rs
+++ b/src/core/game.rs
@@ -1,8 +1,10 @@
+use ActiveState;
 use AppState;
-use common::Point2D;
+use common::{Point2D, Radians};
+use core::app::StateChange;
 use core::controller::Controller;
 use core::controller::ControllerManager;
-use core::level::Level;
+use core::level::{Level, LevelGenerator};
 use core::render::Renderer;
 use point;
 use sdl2::event::Event;
@@ -19,12 +21,15 @@ use time::Duration;
 #[derive(Default)]
 pub struct GameState {
     world: World,
+    lvlgen: LevelGenerator,
 }
 
 impl GameState {
     pub fn new() -> Self {
+       let lvlgen = LevelGenerator::new(0, 5);
        GameState {
-           world: World::new(),
+           world: World::new(lvlgen.generate()),
+           lvlgen,
        }
     }
 }
@@ -38,30 +43,40 @@ impl AppState for GameState {
 
     fn leave(&mut self) {}
 
-    fn update(&mut self, dt: Duration) {
+    fn update(&mut self, dt: Duration) -> Option<StateChange> {
        self.world.update(dt);
+       None
     }
 
     fn render(&mut self, renderer: &mut Renderer, sprites: &SpriteManager) {
        self.world.render(renderer, sprites);
     }
 
-    fn handle_event(&mut self, event: Event) {
+    fn handle_event(&mut self, event: Event) -> Option<StateChange> {
        match event {
+           Event::KeyDown { keycode: Some(Keycode::Escape), .. } => {
+               return Some(StateChange::Pop)
+            }
+           Event::KeyDown { keycode: Some(Keycode::Return), .. } => {
+               return Some(StateChange::Push(Box::new(ActiveState::new((800, 600)))))
+            }
            Event::KeyDown { keycode: Some(Keycode::Space), .. } => {
-               self.world.level.regenerate();
+               self.lvlgen.seed = std::time::UNIX_EPOCH.elapsed().unwrap().as_secs() as u32;
+               self.world.level = self.lvlgen.generate();
            }
            Event::KeyDown { keycode: Some(Keycode::KpPlus), .. } => {
-               self.world.level.increase_iteration();
+               self.lvlgen.iterations += 1;
+               println!("{} iteration(s) of cellular automata", self.lvlgen.iterations);
+               self.world.level = self.lvlgen.generate();
            }
            Event::KeyDown { keycode: Some(Keycode::KpMinus), .. } => {
-               self.world.level.decrease_iteration();
-           }
-           Event::KeyDown { keycode: Some(Keycode::KpEnter), .. } => {
-               self.world.level.filter_regions();
+               self.lvlgen.iterations = 1.max(self.lvlgen.iterations - 1);
+               println!("{} iteration(s) of cellular automata", self.lvlgen.iterations);
+               self.world.level = self.lvlgen.generate();
            }
            _ => {}
        }
+       None
     }
 }
 
@@ -74,9 +89,9 @@ pub struct World {
 }
 
 impl World {
-    pub fn new() -> Self {
+    pub fn new(level: Level) -> Self {
        World {
-           level: Level::new(point!(0.0, 0.1)),
+           level,
            ..Default::default()
        }
     }
@@ -253,12 +268,14 @@ impl Object for Boll {
            if self.bounces == 0 {
                return Dead
            }
-           self.vel *= -0.5;
+           self.vel *= -0.25;
+           self.pos += self.vel;
            self.bounces -= 1;
            use rand::distributions::{Distribution, Normal};
-           let normal = Normal::new(0.5, 0.4);
+           let mut rng = rand::thread_rng();
+           let a = Radians(self.vel.to_radians().0 + Normal::new(0.0, 0.75).sample(&mut rng));
            objects.push(Box::new(Boll {
-               vel: self.vel * normal.sample(&mut rand::thread_rng()),
+               vel: Point2D::from(a) * Normal::new(1.0, 0.25).sample(&mut rng) * self.vel.length(),
                ..*self
            }));
        }