src/core/object/character.rs

   1 use core::controller::Controller;
   2 use core::object::boll::Boll;
   3 use core::level::{Level, Wall, IntersectResult::Intersection};
   4 use core::object::{Object, Objects, ObjectState};
   5 use core::render::Renderer;
   6 use geometry::Point;
   7 use point;
   8 use sdl2::rect::Rect;
   9 use sprites::SpriteManager;
  10 use std::cell::RefCell;
  11 use std::rc::Rc;
  12 use time::Duration;
  13
  14 ////////// CHARACTER ///////////////////////////////////////////////////////////
  15
  16 pub struct Character {
  17     ctrl: Rc<RefCell<Controller>>,
  18     pos: Point<f64>,
  19     vel: Point<f64>,
  20     standing_on: Option<Wall>,
  21 }
  22
  23 impl Character {
  24     pub fn new(ctrl: Rc<RefCell<Controller>>) -> Self {
  25         Character {
  26             ctrl,
  27             pos: point!(300.0, 300.0),
  28             vel: point!(0.0, 0.0),
  29             standing_on: None,
  30         }
  31     }
  32 }
  33
  34 impl Object for Character {
  35     fn update(&mut self, objects: &mut Objects, lvl: &Level, dt: Duration) -> ObjectState {
  36         let ctrl = self.ctrl.borrow();
  37
  38         match &self.standing_on {
  39             Some(wall) => {
  40                 if ctrl.jump.is_pressed && !ctrl.jump.was_pressed {
  41                     if ctrl.mov.to_point().length() < 0.1 {
  42                         self.vel = wall.normal().into();
  43                     } else {
  44                         self.vel = ctrl.mov.to_point();
  45                     }
  46                     self.vel *= 5.0;
  47                     self.pos += self.vel * 0.1;
  48                     self.standing_on = None;
  49                 } else {
  50                     self.vel *= 0.9;
  51                 }
  52             },
  53             None => {
  54                 self.vel += lvl.gravity;
  55                 self.pos += self.vel;
  56
  57                 match ctrl.mov.x {
  58                     v if v < -0.9 && self.vel.x > -5.0 => { self.vel.x -= 0.5 }
  59                     v if v > 0.9 && self.vel.x < 5.0 => { self.vel.x += 0.5 }
  60                     _ => {}
  61                 }
  62
  63                 if let Intersection(wall, pos) = lvl.intersect_walls(self.pos - self.vel, self.pos) {
  64                     self.standing_on = Some(wall);
  65                     self.pos = pos;
  66                     self.vel = point!(0.0, 0.0);
  67                 }
  68             }
  69         }
  70
  71         if ctrl.shoot.is_pressed {
  72             use rand::distributions::{Distribution, Normal};
  73             let normal = Normal::new(0.0, 0.1);
  74             let direction = if ctrl.aim.to_point().length() > 0.1 { ctrl.aim.to_point() } else { ctrl.mov.to_point() };
  75             for _i in 0..100 {
  76                 objects.push(Box::new(Boll::new(
  77                     self.pos + point!(0.0, -16.0), // half the height of mario
  78                     direction * (10.0 + rand::random::<f64>()) + point!(normal.sample(&mut rand::thread_rng()), normal.sample(&mut rand::thread_rng())) + self.vel,
  79                     2,
  80                 )));
  81             }
  82             ctrl.rumble(1.0, dt);
  83             self.vel -= direction * 0.1;
  84         }
  85
  86         ObjectState::Alive
  87     }
  88
  89     fn render(&self, renderer: &mut Renderer, sprites: &SpriteManager) {
  90         let block = sprites.get("mario");
  91         let size = 32;
  92         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));
  93
  94         let ctrl = &self.ctrl.borrow();
  95         let l = 300.0;
  96         let pos = (self.pos.x as i32, self.pos.y as i32);
  97         // // axis values
  98         // let p = (self.pos + ctrl.aim.to_axis_point() * l).to_i32().into();
  99         // renderer.draw_line(pos, p, (0, 255, 0));
 100         // draw_cross(renderer, p);
 101         // values limited to unit vector
 102         let p = (self.pos + ctrl.aim.to_point() * l).to_i32().into();
 103         renderer.draw_line(pos, p, (255, 0, 0));
 104         draw_cross(renderer, p);
 105         let p = (self.pos + ctrl.mov.to_point() * l).to_i32().into();
 106         renderer.draw_line(pos, p, (0, 255, 0));
 107         draw_cross(renderer, p);
 108         // // circle values
 109         // let p = (self.pos + Point::from(ctrl.aim.a) * l).to_i32().into();
 110         // renderer.draw_line(pos, p, (0, 0, 255));
 111         // draw_cross(renderer, p);
 112     }
 113 }
 114
 115 fn draw_cross(renderer: &mut Renderer, p: (i32, i32)) {
 116     renderer.canvas().draw_line((p.0 - 5, p.1), (p.0 + 5, p.1)).unwrap();
 117     renderer.canvas().draw_line((p.0, p.1 - 5), (p.0, p.1 + 5)).unwrap();
 118 }