1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66

//! Simulation events

use {cgmath};

use {collision, force, math, object};

/// An input event
#[derive(Debug, PartialEq)]
pub enum Input {
  Step,
  CreateObject  (object::Variant, object::Key),
  ModifyObject  (ObjectModify),
  DestroyObject (object::Identifier),
  SetGravity    (force::Gravity),
  ClearGravity
}

/// An object modification event
#[derive(Debug, PartialEq)]
pub enum ObjectModify {
  Dynamic (object::Key, ObjectModifyDynamic),
  Static  (object::Key, ObjectModifyStatic)
}

#[derive(Debug, PartialEq)]
pub enum ObjectModifyDynamic {
  ApplyImpulse (cgmath::Vector3 <f64>)
}
#[derive(Debug, PartialEq)]
pub enum ObjectModifyStatic {
  Move         (cgmath::Vector3 <f64>)
}

/// An event that results from handling an input
#[derive(FromVariants, Debug, PartialEq)]
pub enum Output {
  CollisionResolve   (CollisionResolve),
  CreateObjectResult (CreateObjectResult)
}

/// A TOI collision
#[cfg_attr(feature = "derive_serdes", derive(Serialize, Deserialize))]
#[derive(Clone, Debug, PartialEq)]
pub struct CollisionResolve {
  pub toi               : math::Normalized <f64>,
  pub object_id_a       : object::Identifier,
  pub object_id_b       : object::Identifier,
  pub contact           : collision::contact::Colliding,
  pub impulse_normal_a  : cgmath::Vector3 <f64>,
  pub impulse_normal_b  : cgmath::Vector3 <f64>,
  pub impulse_tangent_a : cgmath::Vector3 <f64>,
  pub impulse_tangent_b : cgmath::Vector3 <f64>,
  pub pseudo_impulse_a  : cgmath::Vector3 <f64>,
  pub pseudo_impulse_b  : cgmath::Vector3 <f64>
}

/// Events resulting from object creation
#[derive(Debug, PartialEq)]
pub enum CreateObjectResult {
  /// Creating the object failed with an intersection.
  ///
  /// If intersections were found then the object was not successfully created.
  Intersection (
    object::Identifier,
    Vec <(object::Identifier, collision::Intersection)>),
}