spine2d 0.3.0

Pure Rust runtime for Spine 4.3 (unofficial)
Documentation 
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

use crate::runtime::{AnimationState, AnimationStateData};
use crate::{MixBlend, SequenceMode, Skeleton, SkeletonData, apply_animation, build_draw_list};

const CROSS_SLOT_LINKED_MESH_SEQUENCE: &str = r#"
{
  "skeleton": { "spine": "4.3.00" },
  "bones": [ { "name": "root" } ],
  "slots": [
    { "name": "slot0", "bone": "root", "attachment": "source" },
    { "name": "slot1", "bone": "root", "attachment": "linked" }
  ],
  "skins": {
    "default": {
      "slot0": {
        "source": {
          "type": "mesh",
          "path": "source",
          "uvs": [0,0, 1,0, 1,1, 0,1],
          "vertices": [-1,-1, 1,-1, 1,1, -1,1],
          "triangles": [0,1,2, 2,3,0],
          "sequence": { "count": 3, "start": 1, "digits": 2, "setup": 0 }
        }
      },
      "slot1": {
        "linked": {
          "type": "linkedmesh",
          "source": "source",
          "slot": "slot0"
        }
      }
    }
  },
  "animations": {
    "sequence": {
      "attachments": {
        "default": {
          "slot0": {
            "source": {
              "sequence": [
                { "time": 0.25, "mode": "hold", "index": 2, "delay": 0.1 }
              ]
            }
          }
        }
      }
    }
  }
}
"#;

#[test]
fn sequence_timeline_drives_slot_sequence_index_and_render_path() {
    let data = SkeletonData::from_json_str(
        r#"
{
  "skeleton": { "spine": "4.3.00" },
  "bones": [ { "name": "root" } ],
  "slots": [ { "name": "slot0", "bone": "root", "attachment": "wing" } ],
  "skins": {
    "default": {
      "slot0": {
        "wing": {
          "type": "region",
          "path": "wing",
          "sequence": { "count": 3, "start": 1, "digits": 2, "setup": 1 },
          "width": 2,
          "height": 2
        }
      }
    }
  },
  "animations": {
    "fly": {
      "attachments": {
        "default": {
          "slot0": {
            "wing": {
              "sequence": [
                { "time": 0, "mode": "loop", "index": 0, "delay": 0.1 },
                { "time": 1, "mode": "loop", "index": 0, "delay": 0.1 }
              ]
            }
          }
        }
      }
    }
  }
}
"#,
    )
    .unwrap();

    let mut skeleton = Skeleton::new(data.clone());
    skeleton.set_to_setup_pose();

    assert_eq!(skeleton.slots[0].sequence_index, -1);
    let draw_list = build_draw_list(&skeleton);
    assert_eq!(draw_list.draws.len(), 1);
    assert_eq!(draw_list.draws[0].texture_path, "wing02");

    let state_data = AnimationStateData::new(data);
    let mut state = AnimationState::new(state_data);
    state.set_animation(0, "fly", true).unwrap();

    state.update(0.0);
    state.apply(&mut skeleton);
    assert_eq!(skeleton.slots[0].sequence_index, 0);
    let draw_list = build_draw_list(&skeleton);
    assert_eq!(draw_list.draws[0].texture_path, "wing01");

    state.update(0.15);
    state.apply(&mut skeleton);
    assert_eq!(skeleton.slots[0].sequence_index, 1);
    let draw_list = build_draw_list(&skeleton);
    assert_eq!(draw_list.draws[0].texture_path, "wing02");
}

#[test]
fn sequence_timeline_applies_to_cross_slot_linked_mesh_timeline_slots() {
    let data = SkeletonData::from_json_str(CROSS_SLOT_LINKED_MESH_SEQUENCE).unwrap();
    let (_, animation) = data.animation("sequence").unwrap();
    assert_eq!(animation.sequence_timelines.len(), 1);
    let timeline = &animation.sequence_timelines[0];
    assert_eq!(timeline.skin, "default");
    assert_eq!(timeline.slot_index, 0);
    assert_eq!(timeline.attachment, "source");
    assert_eq!(timeline.frames.len(), 1);
    assert_eq!(timeline.frames[0].mode, SequenceMode::Hold);
    assert_eq!(timeline.frames[0].index, 2);

    let source = data
        .skin("default")
        .and_then(|skin| skin.attachment(0, "source"))
        .and_then(|attachment| match attachment {
            crate::AttachmentData::Mesh(mesh) => Some(mesh),
            _ => None,
        })
        .expect("source mesh");
    assert_eq!(source.timeline_slots, vec![1]);

    let mut skeleton = Skeleton::new(data.clone());
    skeleton.set_to_setup_pose();
    assert_eq!(skeleton.slots[0].sequence_index, -1);
    assert_eq!(skeleton.slots[1].sequence_index, -1);

    apply_animation(
        animation,
        &mut skeleton,
        0.25,
        false,
        1.0,
        MixBlend::Replace,
    );
    assert_eq!(skeleton.slots[0].sequence_index, 2);
    assert_eq!(skeleton.slots[1].sequence_index, 2);

    apply_animation(animation, &mut skeleton, 0.0, false, 1.0, MixBlend::Setup);
    assert_eq!(skeleton.slots[0].sequence_index, -1);
    assert_eq!(skeleton.slots[1].sequence_index, -1);
}