Commit | Line | Data |
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bf7b5671 | 1 | use AppState; |
bf7b5671 TW |
2 | use common::Point2D; |
3 | use core::controller::Controller; | |
4 | use core::controller::ControllerManager; | |
5 | use point; | |
b0566120 | 6 | use sdl2::event::Event; |
bf7b5671 | 7 | use sdl2::rect::Rect; |
b0566120 TW |
8 | use sdl2::render::Canvas; |
9 | use sdl2::video::Window; | |
bf7b5671 TW |
10 | use sprites::SpriteManager; |
11 | use std::cell::RefCell; | |
12 | use std::rc::Rc; | |
902b2b31 | 13 | use time::Duration; |
b0566120 TW |
14 | |
15 | ////////// GAMESTATE /////////////////////////////////////////////////////////// | |
16 | ||
17 | #[derive(Default)] | |
18 | pub struct GameState { | |
19 | world: World, | |
20 | } | |
21 | ||
22 | impl GameState { | |
23 | pub fn new() -> Self { | |
24 | GameState { | |
25 | world: World::new(), | |
26 | } | |
27 | } | |
28 | } | |
29 | ||
30 | impl AppState for GameState { | |
a82a4d23 | 31 | fn enter(&mut self, ctrl_man: &ControllerManager) { |
b0566120 TW |
32 | if let Some(ctrl) = ctrl_man.controllers.get(&0) { |
33 | self.world.add(Box::new(Character::new(ctrl.clone()))); | |
34 | } | |
35 | } | |
36 | ||
37 | fn leave(&mut self) {} | |
38 | ||
902b2b31 | 39 | fn update(&mut self, dt: Duration) { |
b0566120 TW |
40 | self.world.update(dt); |
41 | } | |
42 | ||
a82a4d23 | 43 | fn render(&mut self, canvas: &mut Canvas<Window>, sprites: &SpriteManager) { |
b0566120 TW |
44 | self.world.render(canvas, sprites); |
45 | } | |
46 | ||
47 | fn handle_event(&mut self, _event: Event) {} | |
48 | } | |
49 | ||
50 | ////////// WORLD /////////////////////////////////////////////////////////////// | |
51 | ||
52 | #[derive(Default)] | |
53 | pub struct World { | |
54 | level: Level, | |
3583c453 | 55 | objects: Objects, |
b0566120 TW |
56 | } |
57 | ||
58 | impl World { | |
59 | pub fn new() -> Self { | |
60 | World { | |
61 | level: Level { | |
62 | gravity: point!(0.0, 0.1), | |
63 | ground: 600.0, | |
64 | }, | |
65 | ..Default::default() | |
66 | } | |
67 | } | |
68 | ||
902b2b31 | 69 | pub fn update(&mut self, dt: Duration) { |
3583c453 TW |
70 | let mut breeding_ground = vec!(); |
71 | ||
72 | for i in (0..self.objects.len()).rev() { | |
73 | if self.objects[i].update(&mut breeding_ground, &self.level, dt) == Dead { | |
74 | self.objects.remove(i); // swap_remove is more efficient, but changes the order of the array | |
75 | } | |
76 | } | |
77 | ||
78 | for o in breeding_ground { | |
79 | self.add(o); | |
b0566120 TW |
80 | } |
81 | } | |
82 | ||
a82a4d23 | 83 | pub fn render(&mut self, canvas: &mut Canvas<Window>, sprites: &SpriteManager) { |
b0566120 TW |
84 | self.level.render(canvas, sprites); |
85 | for o in &mut self.objects { | |
86 | o.render(canvas, sprites); | |
87 | } | |
88 | } | |
89 | ||
90 | pub fn add(&mut self, object: Box<dyn Object>) { | |
91 | self.objects.push(object); | |
92 | } | |
93 | } | |
94 | ||
95 | ////////// LEVEL /////////////////////////////////////////////////////////////// | |
96 | ||
97 | #[derive(Default)] | |
98 | pub struct Level { | |
99 | gravity: Point2D<f64>, | |
100 | ground: f64, // just to have something | |
101 | } | |
102 | ||
103 | impl Level { | |
a82a4d23 | 104 | pub fn render(&mut self, canvas: &mut Canvas<Window>, _sprites: &SpriteManager) { |
b0566120 TW |
105 | let w = canvas.viewport().width() as i32; |
106 | for i in 1..11 { | |
107 | let y = (i * i - 1) as i32 + self.ground as i32; | |
108 | canvas.set_draw_color((255 - i * 20, 255 - i * 20, 0)); | |
109 | canvas.draw_line((0, y), (w, y)).unwrap(); | |
110 | } | |
111 | } | |
112 | } | |
113 | ||
114 | ////////// OBJECT ////////////////////////////////////////////////////////////// | |
115 | ||
3583c453 TW |
116 | type Objects = Vec<Box<dyn Object>>; |
117 | ||
b0566120 | 118 | pub trait Object { |
902b2b31 | 119 | fn update(&mut self, objects: &mut Objects, lvl: &Level, dt: Duration) -> ObjectState; |
a82a4d23 | 120 | fn render(&self, _canvas: &mut Canvas<Window>, _sprites: &SpriteManager) {} |
b0566120 TW |
121 | } |
122 | ||
3583c453 TW |
123 | #[derive(PartialEq)] |
124 | pub enum ObjectState { Alive, Dead } | |
125 | use self::ObjectState::*; | |
126 | ||
127 | ||
b0566120 TW |
128 | pub trait Physical {} |
129 | pub trait Drawable {} | |
130 | ||
131 | ////////// CHARACTER /////////////////////////////////////////////////////////// | |
132 | ||
133 | pub struct Character { | |
134 | ctrl: Rc<RefCell<Controller>>, | |
135 | pos: Point2D<f64>, | |
136 | vel: Point2D<f64>, | |
137 | } | |
138 | ||
139 | impl Character { | |
140 | pub fn new(ctrl: Rc<RefCell<Controller>>) -> Self { | |
141 | Character { | |
142 | ctrl, | |
143 | pos: point!(100.0, 100.0), | |
144 | vel: point!(0.0, 0.0), | |
145 | } | |
146 | } | |
147 | } | |
148 | ||
149 | impl Object for Character { | |
902b2b31 | 150 | fn update(&mut self, objects: &mut Objects, lvl: &Level, dt: Duration) -> ObjectState { |
b0566120 | 151 | self.vel += lvl.gravity; |
2836f506 | 152 | self.pos += self.vel; |
b0566120 | 153 | |
bf7b5671 | 154 | let ctrl = self.ctrl.borrow(); |
b0566120 TW |
155 | |
156 | if self.pos.y >= lvl.ground { | |
157 | self.pos.y = lvl.ground; | |
158 | self.vel.y = 0.0; | |
159 | self.vel.x *= 0.9; | |
160 | ||
bf7b5671 TW |
161 | if ctrl.jump.is_pressed { |
162 | self.vel = ctrl.aim.to_point() * 5.0; | |
3583c453 TW |
163 | } |
164 | } | |
165 | ||
bf7b5671 | 166 | if ctrl.shoot.is_pressed { |
3583c453 TW |
167 | use rand::distributions::{Distribution, Normal}; |
168 | let normal = Normal::new(0.0, 0.1); | |
169 | for _i in 0..100 { | |
170 | objects.push(Box::new(Boll { | |
171 | pos: self.pos, | |
bf7b5671 | 172 | vel: ctrl.aim.to_adjusted_point() * (3.0 + rand::random::<f64>()) + point!(normal.sample(&mut rand::thread_rng()), normal.sample(&mut rand::thread_rng())) + self.vel, |
3583c453 TW |
173 | bounces: 2, |
174 | })); | |
b0566120 | 175 | } |
902b2b31 | 176 | ctrl.rumble(1.0, dt); |
b0566120 TW |
177 | } |
178 | ||
bf7b5671 | 179 | match ctrl.mov.x { |
b0566120 TW |
180 | v if v < -0.9 => { self.vel.x -= 0.5 } |
181 | v if v > 0.9 => { self.vel.x += 0.5 } | |
182 | _ => {} | |
183 | } | |
3583c453 TW |
184 | |
185 | Alive | |
b0566120 TW |
186 | } |
187 | ||
a82a4d23 | 188 | fn render(&self, canvas: &mut Canvas<Window>, sprites: &SpriteManager) { |
b0566120 TW |
189 | let block = sprites.get("mario"); |
190 | let size = 32; | |
3583c453 | 191 | canvas.copy(block, None, Rect::new(self.pos.x as i32 - size as i32 / 2, self.pos.y as i32 - size as i32, size, size)).unwrap(); |
bf7b5671 TW |
192 | |
193 | let ctrl = &self.ctrl.borrow(); | |
194 | let l = 300.0; | |
195 | let pos = (self.pos.x as i32, self.pos.y as i32); | |
196 | // axis values | |
197 | let p = (self.pos + ctrl.aim.to_point() * l).to_i32().into(); | |
3583c453 | 198 | canvas.set_draw_color((0, 255, 0)); |
bf7b5671 TW |
199 | canvas.draw_line(pos, p).unwrap(); |
200 | draw_cross(canvas, p); | |
201 | // adjusted values | |
202 | let p = (self.pos + ctrl.aim.to_adjusted_point() * l).to_i32().into(); | |
203 | canvas.set_draw_color((255, 0, 0)); | |
204 | canvas.draw_line(pos, p).unwrap(); | |
205 | draw_cross(canvas, p); | |
206 | // circle values | |
207 | let p = (self.pos + Point2D::from(ctrl.aim.a) * l).to_i32().into(); | |
208 | canvas.set_draw_color((0, 0, 255)); | |
209 | canvas.draw_line(pos, p).unwrap(); | |
210 | draw_cross(canvas, p); | |
3583c453 TW |
211 | } |
212 | } | |
213 | ||
bf7b5671 TW |
214 | fn draw_cross(canvas: &mut Canvas<Window>, p: (i32, i32)) { |
215 | canvas.draw_line((p.0 - 5, p.1), (p.0 + 5, p.1)).unwrap(); | |
216 | canvas.draw_line((p.0, p.1 - 5), (p.0, p.1 + 5)).unwrap(); | |
217 | } | |
218 | ||
a82a4d23 TW |
219 | ////////// BOLL //////////////////////////////////////////////////////////////// |
220 | ||
3583c453 TW |
221 | pub struct Boll { |
222 | pos: Point2D<f64>, | |
223 | vel: Point2D<f64>, | |
224 | bounces: u8, | |
225 | } | |
226 | ||
227 | impl Object for Boll { | |
902b2b31 | 228 | fn update(&mut self, _objects: &mut Objects, lvl: &Level, _dt: Duration) -> ObjectState { |
3583c453 TW |
229 | self.vel += lvl.gravity; |
230 | self.pos += self.vel; | |
231 | ||
232 | if self.pos.y >= lvl.ground { | |
233 | if self.bounces == 0 { | |
234 | return Dead | |
235 | } else { | |
236 | self.bounces -= 1; | |
237 | self.pos.y = lvl.ground; | |
238 | self.vel.y = -self.vel.y; | |
239 | } | |
240 | } | |
241 | ||
242 | Alive | |
243 | } | |
244 | ||
a82a4d23 | 245 | fn render(&self, canvas: &mut Canvas<Window>, _sprites: &SpriteManager) { |
3583c453 TW |
246 | let block = _sprites.get("block"); |
247 | let size = 4 + self.bounces * 6; | |
248 | canvas.copy(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)).unwrap(); | |
249 | // canvas.set_draw_color((0, self.bounces * 100, 255)); | |
250 | // canvas.draw_point((self.pos.x as i32, self.pos.y as i32)).unwrap(); | |
b0566120 TW |
251 | } |
252 | } |