| 1 | use AppState; |
| 2 | use common::Point2D; |
| 3 | use core::controller::Controller; |
| 4 | use core::controller::ControllerManager; |
| 5 | use core::level::Level; |
| 6 | use core::render::Renderer; |
| 7 | use point; |
| 8 | use sdl2::event::Event; |
| 9 | use sdl2::joystick::PowerLevel; |
| 10 | use sdl2::keyboard::Keycode; |
| 11 | use sdl2::rect::Rect; |
| 12 | use sprites::SpriteManager; |
| 13 | use std::cell::RefCell; |
| 14 | use std::rc::Rc; |
| 15 | use time::Duration; |
| 16 | |
| 17 | ////////// GAMESTATE /////////////////////////////////////////////////////////// |
| 18 | |
| 19 | #[derive(Default)] |
| 20 | pub struct GameState { |
| 21 | world: World, |
| 22 | } |
| 23 | |
| 24 | impl GameState { |
| 25 | pub fn new() -> Self { |
| 26 | GameState { |
| 27 | world: World::new(), |
| 28 | } |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | impl AppState for GameState { |
| 33 | fn enter(&mut self, ctrl_man: &ControllerManager) { |
| 34 | if let Some(ctrl) = ctrl_man.controllers.get(&0) { |
| 35 | self.world.add(Box::new(Character::new(ctrl.clone()))); |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | fn leave(&mut self) {} |
| 40 | |
| 41 | fn update(&mut self, dt: Duration) { |
| 42 | self.world.update(dt); |
| 43 | } |
| 44 | |
| 45 | fn render(&mut self, renderer: &mut Renderer, sprites: &SpriteManager) { |
| 46 | self.world.render(renderer, sprites); |
| 47 | } |
| 48 | |
| 49 | fn handle_event(&mut self, event: Event) { |
| 50 | match event { |
| 51 | Event::KeyDown { keycode: Some(Keycode::Space), .. } => { |
| 52 | self.world.level.regenerate(); |
| 53 | } |
| 54 | Event::KeyDown { keycode: Some(Keycode::KpPlus), .. } => { |
| 55 | self.world.level.increase_iteration(); |
| 56 | } |
| 57 | Event::KeyDown { keycode: Some(Keycode::KpMinus), .. } => { |
| 58 | self.world.level.decrease_iteration(); |
| 59 | } |
| 60 | _ => {} |
| 61 | } |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | ////////// WORLD /////////////////////////////////////////////////////////////// |
| 66 | |
| 67 | #[derive(Default)] |
| 68 | pub struct World { |
| 69 | level: Level, |
| 70 | objects: Objects, |
| 71 | } |
| 72 | |
| 73 | impl World { |
| 74 | pub fn new() -> Self { |
| 75 | World { |
| 76 | level: Level::new(point!(0.0, 0.1), 600.0), |
| 77 | ..Default::default() |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | pub fn update(&mut self, dt: Duration) { |
| 82 | let mut breeding_ground = vec!(); |
| 83 | |
| 84 | for i in (0..self.objects.len()).rev() { |
| 85 | if self.objects[i].update(&mut breeding_ground, &self.level, dt) == Dead { |
| 86 | self.objects.remove(i); // swap_remove is more efficient, but changes the order of the array |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | for o in breeding_ground { |
| 91 | self.add(o); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | pub fn render(&mut self, renderer: &mut Renderer, sprites: &SpriteManager) { |
| 96 | self.level.render(renderer, sprites); |
| 97 | for o in &mut self.objects { |
| 98 | o.render(renderer, sprites); |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | pub fn add(&mut self, object: Box<dyn Object>) { |
| 103 | self.objects.push(object); |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | ////////// OBJECT ////////////////////////////////////////////////////////////// |
| 108 | |
| 109 | type Objects = Vec<Box<dyn Object>>; |
| 110 | |
| 111 | pub trait Object { |
| 112 | fn update(&mut self, objects: &mut Objects, lvl: &Level, dt: Duration) -> ObjectState; |
| 113 | fn render(&self, _renderer: &mut Renderer, _sprites: &SpriteManager) {} |
| 114 | } |
| 115 | |
| 116 | #[derive(PartialEq)] |
| 117 | pub enum ObjectState { Alive, Dead } |
| 118 | use self::ObjectState::*; |
| 119 | |
| 120 | |
| 121 | pub trait Physical {} |
| 122 | pub trait Drawable {} |
| 123 | |
| 124 | ////////// CHARACTER /////////////////////////////////////////////////////////// |
| 125 | |
| 126 | pub struct Character { |
| 127 | ctrl: Rc<RefCell<Controller>>, |
| 128 | pos: Point2D<f64>, |
| 129 | vel: Point2D<f64>, |
| 130 | } |
| 131 | |
| 132 | impl Character { |
| 133 | pub fn new(ctrl: Rc<RefCell<Controller>>) -> Self { |
| 134 | Character { |
| 135 | ctrl, |
| 136 | pos: point!(100.0, 100.0), |
| 137 | vel: point!(0.0, 0.0), |
| 138 | } |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | impl Object for Character { |
| 143 | fn update(&mut self, objects: &mut Objects, lvl: &Level, dt: Duration) -> ObjectState { |
| 144 | self.vel += lvl.gravity; |
| 145 | self.pos += self.vel; |
| 146 | |
| 147 | let ctrl = self.ctrl.borrow(); |
| 148 | |
| 149 | if self.pos.y >= lvl.ground { |
| 150 | self.pos.y = lvl.ground; |
| 151 | self.vel.y = 0.0; |
| 152 | self.vel.x *= 0.9; |
| 153 | |
| 154 | if ctrl.jump.is_pressed { |
| 155 | self.vel = ctrl.aim.to_point() * 5.0; |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | if ctrl.shoot.is_pressed { |
| 160 | use rand::distributions::{Distribution, Normal}; |
| 161 | let normal = Normal::new(0.0, 0.1); |
| 162 | for _i in 0..100 { |
| 163 | objects.push(Box::new(Boll { |
| 164 | pos: self.pos, |
| 165 | vel: ctrl.aim.to_point() * (3.0 + rand::random::<f64>()) + point!(normal.sample(&mut rand::thread_rng()), normal.sample(&mut rand::thread_rng())) + self.vel, |
| 166 | bounces: 2, |
| 167 | })); |
| 168 | } |
| 169 | ctrl.rumble(1.0, dt); |
| 170 | } |
| 171 | |
| 172 | if ctrl.start.is_pressed && !ctrl.start.was_pressed { |
| 173 | match ctrl.device.power_level() { |
| 174 | Ok(PowerLevel::Unknown) => { println!("power level unknown"); } |
| 175 | Ok(PowerLevel::Empty) => { println!("power level empty"); } |
| 176 | Ok(PowerLevel::Low) => { println!("power level low"); } |
| 177 | Ok(PowerLevel::Medium) => { println!("power level medium"); } |
| 178 | Ok(PowerLevel::Full) => { println!("power level full"); } |
| 179 | Ok(PowerLevel::Wired) => { println!("power level wired"); } |
| 180 | Err(_) => {} |
| 181 | }; |
| 182 | } |
| 183 | |
| 184 | match ctrl.mov.x { |
| 185 | v if v < -0.9 => { self.vel.x -= 0.5 } |
| 186 | v if v > 0.9 => { self.vel.x += 0.5 } |
| 187 | _ => {} |
| 188 | } |
| 189 | |
| 190 | Alive |
| 191 | } |
| 192 | |
| 193 | fn render(&self, renderer: &mut Renderer, sprites: &SpriteManager) { |
| 194 | let block = sprites.get("mario"); |
| 195 | let size = 32; |
| 196 | renderer.blit(block, None, Rect::new(self.pos.x as i32 - size as i32 / 2, self.pos.y as i32 - size as i32, size, size)); |
| 197 | |
| 198 | let ctrl = &self.ctrl.borrow(); |
| 199 | let l = 300.0; |
| 200 | let pos = (self.pos.x as i32, self.pos.y as i32); |
| 201 | // axis values |
| 202 | let p = (self.pos + ctrl.aim.to_axis_point() * l).to_i32().into(); |
| 203 | renderer.draw_line(pos, p, (0, 255, 0)); |
| 204 | draw_cross(renderer, p); |
| 205 | // values limited to unit vector |
| 206 | let p = (self.pos + ctrl.aim.to_point() * l).to_i32().into(); |
| 207 | renderer.draw_line(pos, p, (255, 0, 0)); |
| 208 | draw_cross(renderer, p); |
| 209 | // circle values |
| 210 | let p = (self.pos + Point2D::from(ctrl.aim.a) * l).to_i32().into(); |
| 211 | renderer.draw_line(pos, p, (0, 0, 255)); |
| 212 | draw_cross(renderer, p); |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | fn draw_cross(renderer: &mut Renderer, p: (i32, i32)) { |
| 217 | renderer.canvas().draw_line((p.0 - 5, p.1), (p.0 + 5, p.1)).unwrap(); |
| 218 | renderer.canvas().draw_line((p.0, p.1 - 5), (p.0, p.1 + 5)).unwrap(); |
| 219 | } |
| 220 | |
| 221 | ////////// BOLL //////////////////////////////////////////////////////////////// |
| 222 | |
| 223 | pub struct Boll { |
| 224 | pos: Point2D<f64>, |
| 225 | vel: Point2D<f64>, |
| 226 | bounces: u8, |
| 227 | } |
| 228 | |
| 229 | impl Object for Boll { |
| 230 | fn update(&mut self, objects: &mut Objects, lvl: &Level, _dt: Duration) -> ObjectState { |
| 231 | self.vel += lvl.gravity; |
| 232 | self.pos += self.vel; |
| 233 | |
| 234 | let x = (self.pos.x / lvl.grid.cell_size as f64).min(lvl.grid.width as f64 - 1.0).max(0.0) as usize; |
| 235 | let y = (self.pos.y / lvl.grid.cell_size as f64).min(lvl.grid.height as f64 - 1.0).max(0.0) as usize; |
| 236 | if lvl.grid.cells[x][y] { |
| 237 | if self.bounces == 0 { |
| 238 | return Dead |
| 239 | } |
| 240 | self.vel = -self.vel; |
| 241 | self.bounces -= 1; |
| 242 | use rand::distributions::{Distribution, Normal}; |
| 243 | let normal = Normal::new(0.5, 0.4); |
| 244 | objects.push(Box::new(Boll { |
| 245 | vel: self.vel * normal.sample(&mut rand::thread_rng()), |
| 246 | ..*self |
| 247 | })); |
| 248 | } |
| 249 | |
| 250 | Alive |
| 251 | } |
| 252 | |
| 253 | fn render(&self, renderer: &mut Renderer, _sprites: &SpriteManager) { |
| 254 | let block = _sprites.get("block"); |
| 255 | let size = 4 + self.bounces * 6; |
| 256 | renderer.blit(block, None, Rect::new(self.pos.x as i32 - size as i32 / 2, self.pos.y as i32 - size as i32 / 2, size as u32, size as u32)); |
| 257 | // renderer.canvas().set_draw_color((0, self.bounces * 100, 255)); |
| 258 | // renderer.canvas().draw_point((self.pos.x as i32, self.pos.y as i32)).unwrap(); |
| 259 | } |
| 260 | } |