wow_dbc/wrath_tables/
loading_screens.rs

1use crate::{
2    DbcTable, Indexable,
3};
4use crate::header::{
5    DbcHeader, HEADER_SIZE, parse_header,
6};
7use std::io::Write;
8
9#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
10pub struct LoadingScreens {
11    pub rows: Vec<LoadingScreensRow>,
12}
13
14impl DbcTable for LoadingScreens {
15    type Row = LoadingScreensRow;
16
17    const FILENAME: &'static str = "LoadingScreens.dbc";
18
19    fn rows(&self) -> &[Self::Row] { &self.rows }
20    fn rows_mut(&mut self) -> &mut [Self::Row] { &mut self.rows }
21
22    fn read(b: &mut impl std::io::Read) -> Result<Self, crate::DbcError> {
23        let mut header = [0_u8; HEADER_SIZE];
24        b.read_exact(&mut header)?;
25        let header = parse_header(&header)?;
26
27        if header.record_size != 16 {
28            return Err(crate::DbcError::InvalidHeader(
29                crate::InvalidHeaderError::RecordSize {
30                    expected: 16,
31                    actual: header.record_size,
32                },
33            ));
34        }
35
36        if header.field_count != 4 {
37            return Err(crate::DbcError::InvalidHeader(
38                crate::InvalidHeaderError::FieldCount {
39                    expected: 4,
40                    actual: header.field_count,
41                },
42            ));
43        }
44
45        let mut r = vec![0_u8; (header.record_count * header.record_size) as usize];
46        b.read_exact(&mut r)?;
47        let mut string_block = vec![0_u8; header.string_block_size as usize];
48        b.read_exact(&mut string_block)?;
49
50        let mut rows = Vec::with_capacity(header.record_count as usize);
51
52        for mut chunk in r.chunks(header.record_size as usize) {
53            let chunk = &mut chunk;
54
55            // id: primary_key (LoadingScreens) int32
56            let id = LoadingScreensKey::new(crate::util::read_i32_le(chunk)?);
57
58            // name: string_ref
59            let name = {
60                let s = crate::util::get_string_as_vec(chunk, &string_block)?;
61                String::from_utf8(s)?
62            };
63
64            // file_name: string_ref
65            let file_name = {
66                let s = crate::util::get_string_as_vec(chunk, &string_block)?;
67                String::from_utf8(s)?
68            };
69
70            // has_wide_screen: int32
71            let has_wide_screen = crate::util::read_i32_le(chunk)?;
72
73
74            rows.push(LoadingScreensRow {
75                id,
76                name,
77                file_name,
78                has_wide_screen,
79            });
80        }
81
82        Ok(LoadingScreens { rows, })
83    }
84
85    fn write(&self, b: &mut impl Write) -> Result<(), std::io::Error> {
86        let header = DbcHeader {
87            record_count: self.rows.len() as u32,
88            field_count: 4,
89            record_size: 16,
90            string_block_size: self.string_block_size(),
91        };
92
93        b.write_all(&header.write_header())?;
94
95        let mut string_index = 1;
96        for row in &self.rows {
97            // id: primary_key (LoadingScreens) int32
98            b.write_all(&row.id.id.to_le_bytes())?;
99
100            // name: string_ref
101            if !row.name.is_empty() {
102                b.write_all(&(string_index as u32).to_le_bytes())?;
103                string_index += row.name.len() + 1;
104            }
105            else {
106                b.write_all(&(0_u32).to_le_bytes())?;
107            }
108
109            // file_name: string_ref
110            if !row.file_name.is_empty() {
111                b.write_all(&(string_index as u32).to_le_bytes())?;
112                string_index += row.file_name.len() + 1;
113            }
114            else {
115                b.write_all(&(0_u32).to_le_bytes())?;
116            }
117
118            // has_wide_screen: int32
119            b.write_all(&row.has_wide_screen.to_le_bytes())?;
120
121        }
122
123        self.write_string_block(b)?;
124
125        Ok(())
126    }
127
128}
129
130impl Indexable for LoadingScreens {
131    type PrimaryKey = LoadingScreensKey;
132    fn get(&self, key: impl TryInto<Self::PrimaryKey>) -> Option<&Self::Row> {
133        let key = key.try_into().ok()?;
134        self.rows.iter().find(|a| a.id.id == key.id)
135    }
136
137    fn get_mut(&mut self, key: impl TryInto<Self::PrimaryKey>) -> Option<&mut Self::Row> {
138        let key = key.try_into().ok()?;
139        self.rows.iter_mut().find(|a| a.id.id == key.id)
140    }
141}
142
143impl LoadingScreens {
144    fn write_string_block(&self, b: &mut impl Write) -> Result<(), std::io::Error> {
145        b.write_all(&[0])?;
146
147        for row in &self.rows {
148            if !row.name.is_empty() { b.write_all(row.name.as_bytes())?; b.write_all(&[0])?; };
149            if !row.file_name.is_empty() { b.write_all(row.file_name.as_bytes())?; b.write_all(&[0])?; };
150        }
151
152        Ok(())
153    }
154
155    fn string_block_size(&self) -> u32 {
156        let mut sum = 1;
157        for row in &self.rows {
158            if !row.name.is_empty() { sum += row.name.len() + 1; };
159            if !row.file_name.is_empty() { sum += row.file_name.len() + 1; };
160        }
161
162        sum as u32
163    }
164
165}
166
167#[derive(Debug, Clone, Copy, PartialEq, Eq, Ord, PartialOrd, Hash, Default)]
168pub struct LoadingScreensKey {
169    pub id: i32
170}
171
172impl LoadingScreensKey {
173    pub const fn new(id: i32) -> Self {
174        Self { id }
175    }
176
177}
178
179impl From<u8> for LoadingScreensKey {
180    fn from(v: u8) -> Self {
181        Self::new(v.into())
182    }
183}
184
185impl From<u16> for LoadingScreensKey {
186    fn from(v: u16) -> Self {
187        Self::new(v.into())
188    }
189}
190
191impl From<i8> for LoadingScreensKey {
192    fn from(v: i8) -> Self {
193        Self::new(v.into())
194    }
195}
196
197impl From<i16> for LoadingScreensKey {
198    fn from(v: i16) -> Self {
199        Self::new(v.into())
200    }
201}
202
203impl From<i32> for LoadingScreensKey {
204    fn from(v: i32) -> Self {
205        Self::new(v)
206    }
207}
208
209impl TryFrom<u32> for LoadingScreensKey {
210    type Error = u32;
211    fn try_from(v: u32) -> Result<Self, Self::Error> {
212        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
213    }
214}
215
216impl TryFrom<usize> for LoadingScreensKey {
217    type Error = usize;
218    fn try_from(v: usize) -> Result<Self, Self::Error> {
219        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
220    }
221}
222
223impl TryFrom<u64> for LoadingScreensKey {
224    type Error = u64;
225    fn try_from(v: u64) -> Result<Self, Self::Error> {
226        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
227    }
228}
229
230impl TryFrom<i64> for LoadingScreensKey {
231    type Error = i64;
232    fn try_from(v: i64) -> Result<Self, Self::Error> {
233        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
234    }
235}
236
237impl TryFrom<isize> for LoadingScreensKey {
238    type Error = isize;
239    fn try_from(v: isize) -> Result<Self, Self::Error> {
240        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
241    }
242}
243
244#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
245pub struct LoadingScreensRow {
246    pub id: LoadingScreensKey,
247    pub name: String,
248    pub file_name: String,
249    pub has_wide_screen: i32,
250}
251
wow_dbc/wrath_tables/loading_screens.rs

wow_dbc/wrath_tables/
loading_screens.rs
