wow_dbc/vanilla_tables/
item_class.rs

1use crate::{
2    DbcTable, Indexable, LocalizedString,
3};
4use crate::header::{
5    DbcHeader, HEADER_SIZE, parse_header,
6};
7use std::io::Write;
8use wow_world_base::vanilla::ItemWeaponClass;
9
10#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
11pub struct ItemClass {
12    pub rows: Vec<ItemClassRow>,
13}
14
15impl DbcTable for ItemClass {
16    type Row = ItemClassRow;
17
18    const FILENAME: &'static str = "ItemClass.dbc";
19
20    fn rows(&self) -> &[Self::Row] { &self.rows }
21    fn rows_mut(&mut self) -> &mut [Self::Row] { &mut self.rows }
22
23    fn read(b: &mut impl std::io::Read) -> Result<Self, crate::DbcError> {
24        let mut header = [0_u8; HEADER_SIZE];
25        b.read_exact(&mut header)?;
26        let header = parse_header(&header)?;
27
28        if header.record_size != 48 {
29            return Err(crate::DbcError::InvalidHeader(
30                crate::InvalidHeaderError::RecordSize {
31                    expected: 48,
32                    actual: header.record_size,
33                },
34            ));
35        }
36
37        if header.field_count != 12 {
38            return Err(crate::DbcError::InvalidHeader(
39                crate::InvalidHeaderError::FieldCount {
40                    expected: 12,
41                    actual: header.field_count,
42                },
43            ));
44        }
45
46        let mut r = vec![0_u8; (header.record_count * header.record_size) as usize];
47        b.read_exact(&mut r)?;
48        let mut string_block = vec![0_u8; header.string_block_size as usize];
49        b.read_exact(&mut string_block)?;
50
51        let mut rows = Vec::with_capacity(header.record_count as usize);
52
53        for mut chunk in r.chunks(header.record_size as usize) {
54            let chunk = &mut chunk;
55
56            // id: primary_key (ItemClass) uint32
57            let id = ItemClassKey::new(crate::util::read_u32_le(chunk)?);
58
59            // subclass_map: uint32
60            let subclass_map = crate::util::read_u32_le(chunk)?;
61
62            // item_class: ItemWeaponClass
63            let item_class = crate::util::read_i32_le(chunk)?.try_into()?;
64
65            // class_name: string_ref_loc
66            let class_name = crate::util::read_localized_string(chunk, &string_block)?;
67
68
69            rows.push(ItemClassRow {
70                id,
71                subclass_map,
72                item_class,
73                class_name,
74            });
75        }
76
77        Ok(ItemClass { rows, })
78    }
79
80    fn write(&self, b: &mut impl Write) -> Result<(), std::io::Error> {
81        let header = DbcHeader {
82            record_count: self.rows.len() as u32,
83            field_count: 12,
84            record_size: 48,
85            string_block_size: self.string_block_size(),
86        };
87
88        b.write_all(&header.write_header())?;
89
90        let mut string_index = 1;
91        for row in &self.rows {
92            // id: primary_key (ItemClass) uint32
93            b.write_all(&row.id.id.to_le_bytes())?;
94
95            // subclass_map: uint32
96            b.write_all(&row.subclass_map.to_le_bytes())?;
97
98            // item_class: ItemWeaponClass
99            b.write_all(&(row.item_class.as_int() as i32).to_le_bytes())?;
100
101            // class_name: string_ref_loc
102            b.write_all(&row.class_name.string_indices_as_array(&mut string_index))?;
103
104        }
105
106        self.write_string_block(b)?;
107
108        Ok(())
109    }
110
111}
112
113impl Indexable for ItemClass {
114    type PrimaryKey = ItemClassKey;
115    fn get(&self, key: impl TryInto<Self::PrimaryKey>) -> Option<&Self::Row> {
116        let key = key.try_into().ok()?;
117        self.rows.iter().find(|a| a.id.id == key.id)
118    }
119
120    fn get_mut(&mut self, key: impl TryInto<Self::PrimaryKey>) -> Option<&mut Self::Row> {
121        let key = key.try_into().ok()?;
122        self.rows.iter_mut().find(|a| a.id.id == key.id)
123    }
124}
125
126impl ItemClass {
127    fn write_string_block(&self, b: &mut impl Write) -> Result<(), std::io::Error> {
128        b.write_all(&[0])?;
129
130        for row in &self.rows {
131            row.class_name.string_block_as_array(b)?;
132        }
133
134        Ok(())
135    }
136
137    fn string_block_size(&self) -> u32 {
138        let mut sum = 1;
139        for row in &self.rows {
140            sum += row.class_name.string_block_size();
141        }
142
143        sum as u32
144    }
145
146}
147
148#[derive(Debug, Clone, Copy, PartialEq, Eq, Ord, PartialOrd, Hash, Default)]
149pub struct ItemClassKey {
150    pub id: u32
151}
152
153impl ItemClassKey {
154    pub const fn new(id: u32) -> Self {
155        Self { id }
156    }
157
158}
159
160impl From<u8> for ItemClassKey {
161    fn from(v: u8) -> Self {
162        Self::new(v.into())
163    }
164}
165
166impl From<u16> for ItemClassKey {
167    fn from(v: u16) -> Self {
168        Self::new(v.into())
169    }
170}
171
172impl From<u32> for ItemClassKey {
173    fn from(v: u32) -> Self {
174        Self::new(v)
175    }
176}
177
178impl TryFrom<u64> for ItemClassKey {
179    type Error = u64;
180    fn try_from(v: u64) -> Result<Self, Self::Error> {
181        Ok(TryInto::<u32>::try_into(v).ok().ok_or(v)?.into())
182    }
183}
184
185impl TryFrom<usize> for ItemClassKey {
186    type Error = usize;
187    fn try_from(v: usize) -> Result<Self, Self::Error> {
188        Ok(TryInto::<u32>::try_into(v).ok().ok_or(v)?.into())
189    }
190}
191
192impl TryFrom<i8> for ItemClassKey {
193    type Error = i8;
194    fn try_from(v: i8) -> Result<Self, Self::Error> {
195        Ok(TryInto::<u32>::try_into(v).ok().ok_or(v)?.into())
196    }
197}
198
199impl TryFrom<i16> for ItemClassKey {
200    type Error = i16;
201    fn try_from(v: i16) -> Result<Self, Self::Error> {
202        Ok(TryInto::<u32>::try_into(v).ok().ok_or(v)?.into())
203    }
204}
205
206impl TryFrom<i32> for ItemClassKey {
207    type Error = i32;
208    fn try_from(v: i32) -> Result<Self, Self::Error> {
209        Ok(TryInto::<u32>::try_into(v).ok().ok_or(v)?.into())
210    }
211}
212
213impl TryFrom<i64> for ItemClassKey {
214    type Error = i64;
215    fn try_from(v: i64) -> Result<Self, Self::Error> {
216        Ok(TryInto::<u32>::try_into(v).ok().ok_or(v)?.into())
217    }
218}
219
220impl TryFrom<isize> for ItemClassKey {
221    type Error = isize;
222    fn try_from(v: isize) -> Result<Self, Self::Error> {
223        Ok(TryInto::<u32>::try_into(v).ok().ok_or(v)?.into())
224    }
225}
226
227#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
228pub struct ItemClassRow {
229    pub id: ItemClassKey,
230    pub subclass_map: u32,
231    pub item_class: ItemWeaponClass,
232    pub class_name: LocalizedString,
233}
234
wow_dbc/vanilla_tables/item_class.rs

wow_dbc/vanilla_tables/
item_class.rs
