libgm 0.5.1

A tool for modding, unpacking and decompiling GameMaker games
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

use crate::prelude::*;
use crate::util::init::vec_with_capacity;
use crate::wad::deserialize::reader::DataReader;
use crate::wad::elements::GMElement;
use crate::wad::serialize::builder::DataBuilder;

#[derive(Debug, Clone, PartialEq)]
pub struct Data {
    pub fill_style1: i32,
    pub fill_style2: i32,
    pub line_style: i32,
    pub points: Vec<(f32, f32)>,
    pub lines: Vec<(i32, i32)>,
    pub triangles: Vec<i32>,
    pub line_points: Vec<(f32, f32)>,
    pub line_triangles: Vec<i32>,
    pub aa_lines: Vec<(i32, i32)>,
    pub aa_vectors: Vec<(f32, f32)>,
    pub line_aa_lines: Vec<(i32, i32)>,
    pub line_aa_vectors: Vec<(f32, f32)>,
}

impl GMElement for Data {
    fn deserialize(reader: &mut DataReader) -> Result<Self> {
        let fill_style1 = reader.read_i32()?;
        let fill_style2 = reader.read_i32()?;
        let line_style = reader.read_i32()?;

        let point_count = reader.read_u32()?;
        let line_count = reader.read_u32()?;
        let triangle_count = reader.read_u32()? * 3;
        let line_point_count = reader.read_u32()?;
        let line_triangle_count = reader.read_u32()? * 3;
        let aa_line_count = reader.read_u32()?;
        let aa_vector_count = reader.read_u32()?;
        let line_aa_line_count = reader.read_u32()?;
        let line_aa_vector_count = reader.read_u32()?;

        let mut points: Vec<(f32, f32)> = vec_with_capacity(point_count)?;
        let mut lines: Vec<(i32, i32)> = vec_with_capacity(line_count)?;
        let mut triangles: Vec<i32> = vec_with_capacity(triangle_count)?;
        let mut line_points: Vec<(f32, f32)> = vec_with_capacity(line_point_count)?;
        let mut line_triangles: Vec<i32> = vec_with_capacity(line_triangle_count)?;
        let mut aa_lines: Vec<(i32, i32)> = vec_with_capacity(aa_line_count)?;
        let mut aa_vectors: Vec<(f32, f32)> = vec_with_capacity(aa_vector_count)?;
        let mut line_aa_lines: Vec<(i32, i32)> = vec_with_capacity(line_aa_line_count)?;
        let mut line_aa_vectors: Vec<(f32, f32)> = vec_with_capacity(line_aa_vector_count)?;

        for _ in 0..point_count {
            points.push((reader.read_f32()?, reader.read_f32()?));
        }
        for _ in 0..line_count {
            lines.push((reader.read_i32()?, reader.read_i32()?));
        }
        for _ in 0..triangle_count {
            triangles.push(reader.read_i32()?);
        }
        for _ in 0..line_point_count {
            line_points.push((reader.read_f32()?, reader.read_f32()?));
        }
        for _ in 0..line_triangle_count {
            line_triangles.push(reader.read_i32()?);
        }
        for _ in 0..aa_line_count {
            aa_lines.push((reader.read_i32()?, reader.read_i32()?));
        }
        for _ in 0..aa_vector_count {
            aa_vectors.push((reader.read_f32()?, reader.read_f32()?));
        }
        for _ in 0..line_aa_line_count {
            line_aa_lines.push((reader.read_i32()?, reader.read_i32()?));
        }
        for _ in 0..line_aa_vector_count {
            line_aa_vectors.push((reader.read_f32()?, reader.read_f32()?));
        }

        Ok(Self {
            fill_style1,
            fill_style2,
            line_style,
            points,
            lines,
            triangles,
            line_points,
            line_triangles,
            aa_lines,
            aa_vectors,
            line_aa_lines,
            line_aa_vectors,
        })
    }

    fn serialize(&self, builder: &mut DataBuilder) -> Result<()> {
        builder.write_i32(self.fill_style1);
        builder.write_i32(self.fill_style2);
        builder.write_i32(self.line_style);

        builder.write_usize(self.points.len())?;
        builder.write_usize(self.lines.len())?;
        builder.write_usize(self.triangles.len() / 3)?;
        builder.write_usize(self.line_points.len())?;
        builder.write_usize(self.line_triangles.len() / 3)?;
        builder.write_usize(self.aa_lines.len())?;
        builder.write_usize(self.aa_vectors.len())?;
        builder.write_usize(self.line_aa_lines.len())?;
        builder.write_usize(self.line_aa_vectors.len())?;

        for (x, y) in &self.points {
            builder.write_f32(*x);
            builder.write_f32(*y);
        }
        for (x, y) in &self.lines {
            builder.write_i32(*x);
            builder.write_i32(*y);
        }
        for i in &self.triangles {
            builder.write_i32(*i);
        }
        for (x, y) in &self.line_points {
            builder.write_f32(*x);
            builder.write_f32(*y);
        }
        for i in &self.line_triangles {
            builder.write_i32(*i);
        }
        for (x, y) in &self.aa_lines {
            builder.write_i32(*x);
            builder.write_i32(*y);
        }
        for (x, y) in &self.aa_vectors {
            builder.write_f32(*x);
            builder.write_f32(*y);
        }
        for (x, y) in &self.line_aa_lines {
            builder.write_i32(*x);
            builder.write_i32(*y);
        }
        for (x, y) in &self.line_aa_vectors {
            builder.write_f32(*x);
            builder.write_f32(*y);
        }
        Ok(())
    }
}