coretilus 0.7.0

A parody of GNU Coreutils — a playful collection of typo-triggered command-line tools written in Rust
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

use crate::engine_v2::entity::frame::Frame;

#[derive(Debug, Clone, Copy)]
pub enum AnimationType {
    Static,
    TickBased,
    MovementBased,
}

#[derive(Debug, Clone)]
pub struct SpriteAnimation {
    frames: Vec<Frame>,
    current_frame_index: usize,

    default_frame_ticks: usize, // default ticks per frame (TickBased)
    elapsed_ticks: usize,       // since last frame change

    animation_type: AnimationType,
    looping: bool,
    is_done: bool,
    started_tick_id: usize,
    only_when_movement_active: bool,
    stop_after_movement: bool,
}

impl SpriteAnimation {
    /// Constructor for a Static animation (single frame)
    pub fn new_static(frame: Frame) -> Self {
        Self {
            frames: vec![frame],
            current_frame_index: 0,
            default_frame_ticks: 1,
            elapsed_ticks: 0,
            animation_type: AnimationType::Static,
            looping: true,
            is_done: false,
            started_tick_id: 0,
            only_when_movement_active: false,
            stop_after_movement: false,
        }
    }

    /// Constructor for a TickBased animation
    pub fn new_tick_based(
        frames: Vec<Frame>,
        frame_ticks: usize,
        looping: bool,
        start_frame_id: Option<usize>,
        only_when_movement_active: bool,
        stop_after_movement: bool,
    ) -> Self {
        let current_frame_index = start_frame_id.unwrap_or_default();
        Self {
            frames,
            current_frame_index,
            default_frame_ticks: frame_ticks,
            elapsed_ticks: 0,
            animation_type: AnimationType::TickBased,
            looping,
            is_done: false,
            started_tick_id: 0,
            only_when_movement_active,
            stop_after_movement,
        }
    }

    /// Constructor for a MovementBased animation
    pub fn new_movement_based(frames: Vec<Frame>, looping: bool) -> Self {
        Self {
            frames,
            current_frame_index: 0,
            default_frame_ticks: 1, // not used for MovementBased
            elapsed_ticks: 0,
            animation_type: AnimationType::MovementBased,
            looping,
            is_done: false,
            started_tick_id: 0,
            only_when_movement_active: true,
            stop_after_movement: true,
        }
    }

    pub fn current_frame_index(&self) -> usize {
        self.current_frame_index
    }

    pub fn set_frame_id(&mut self, frame_id: usize) {
        self.current_frame_index = frame_id;
    }

    pub fn current_frame(&self) -> &Frame {
        &self.frames[self.current_frame_index]
    }

    pub fn reset(&mut self, start_tick_id: usize) {
        self.current_frame_index = 0;
        self.is_done = false;
        self.started_tick_id = start_tick_id;
    }

    pub fn has_started(&self) -> bool {
        self.started_tick_id > 0
    }

    pub fn started_tick(&self) -> usize {
        self.started_tick_id
    }

    pub fn advance(
        &mut self,
        tick_id: usize,
        moved_x: bool,
        moved_y: bool,
        is_movement_active: bool,
        movement_ended: bool,
    ) {
        match self.animation_type {
            AnimationType::Static => (),

            AnimationType::TickBased => {
                if self.stop_after_movement && movement_ended {
                    return;
                }
                if self.only_when_movement_active && !is_movement_active {
                    return;
                }
                self.elapsed_ticks = tick_id.saturating_sub(self.started_tick_id);
                if self.elapsed_ticks > 0
                    && self.elapsed_ticks.is_multiple_of(self.default_frame_ticks)
                {
                    self.next_frame();
                }
            }
            AnimationType::MovementBased => {
                if moved_x || moved_y {
                    self.next_frame();
                }
            }
        }
    }

    fn next_frame(&mut self) {
        if self.current_frame_index + 1 < self.frames.len() {
            self.current_frame_index += 1;
        } else if self.looping {
            self.current_frame_index = 0;
        } else {
            self.is_done = true;
        }
    }
}