Mercurial > touhou
annotate src/th06/anm0.rs @ 644:f983a4c98410
Remove unused variables.
author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
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date | Sat, 03 Aug 2019 22:44:01 +0200 |
parents | 01849ffd0180 |
children | 7bde50132735 |
rev | line source |
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638 | 1 //! ANM0 animation format support. |
2 | |
3 use nom::{ | |
4 IResult, | |
5 bytes::complete::{tag, take_while_m_n}, | |
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6 number::complete::{le_u8, le_u16, le_u32, le_i32, le_f32}, |
638 | 7 }; |
8 use std::collections::HashMap; | |
9 | |
10 /// Coordinates of a sprite into the image. | |
11 #[derive(Debug, Clone)] | |
12 pub struct Sprite { | |
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13 /// Index inside the anm0. |
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14 pub index: u32, |
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15 |
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16 /// X coordinate in the sprite sheet. |
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17 pub x: f32, |
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18 |
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19 /// Y coordinate in the sprite sheet. |
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20 pub y: f32, |
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21 |
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22 /// Width of the sprite. |
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23 pub width: f32, |
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24 |
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25 /// Height of the sprite. |
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26 pub height: f32, |
638 | 27 } |
28 | |
29 /// A single instruction, part of a `Script`. | |
30 #[derive(Debug, Clone)] | |
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31 pub struct Call { |
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32 /// Time at which this instruction will be called. |
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33 pub time: u16, |
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34 |
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35 /// The instruction to call. |
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36 pub instr: Instruction, |
638 | 37 } |
38 | |
39 /// Script driving an animation. | |
40 #[derive(Debug, Clone)] | |
41 pub struct Script { | |
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42 /// List of instructions in this script. |
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43 pub instructions: Vec<Call>, |
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44 |
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45 /// List of interrupts in this script. |
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46 pub interrupts: HashMap<i32, u8> |
638 | 47 } |
48 | |
49 /// Main struct of the ANM0 animation format. | |
50 #[derive(Debug, Clone)] | |
51 pub struct Anm0 { | |
52 /// Resolution of the image used by this ANM. | |
53 pub size: (u32, u32), | |
54 | |
55 /// Format of this ANM. | |
56 pub format: u32, | |
57 | |
58 /// File name of the main image. | |
59 pub first_name: String, | |
60 | |
61 /// File name of an alpha channel image. | |
62 pub second_name: String, | |
63 | |
64 /// A list of sprites, coordinates into the attached image. | |
65 pub sprites: Vec<Sprite>, | |
66 | |
67 /// A map of scripts. | |
68 pub scripts: HashMap<u8, Script>, | |
69 } | |
70 | |
71 impl Anm0 { | |
72 /// Parse a slice of bytes into an `Anm0` struct. | |
73 pub fn from_slice(data: &[u8]) -> Result<Anm0, ()> { | |
74 // XXX: report the exact nom error instead! | |
75 let (_, anm0) = parse_anm0(data).or_else(|_| Err(()))?; | |
76 assert_eq!(anm0.len(), 1); | |
77 Ok(anm0[0].clone()) | |
78 } | |
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79 |
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80 /// TODO |
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81 pub fn inv_size(&self) -> (f32, f32) { |
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82 let (x, y) = self.size; |
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83 (1. / x as f32, 1. / y as f32) |
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84 } |
638 | 85 } |
86 | |
87 fn parse_name(i: &[u8], is_present: bool) -> IResult<&[u8], String> { | |
88 if !is_present { | |
89 return Ok((i, String::new())); | |
90 } | |
91 let (_, slice) = take_while_m_n(0, 32, |c| c != 0)(i)?; | |
92 // XXX: no unwrap! | |
93 let string = String::from_utf8(slice.to_vec()).unwrap(); | |
94 Ok((i, string)) | |
95 } | |
96 | |
97 fn parse_sprite(i: &[u8]) -> IResult<&[u8], Sprite> { | |
98 let (i, index) = le_u32(i)?; | |
99 let (i, x) = le_f32(i)?; | |
100 let (i, y) = le_f32(i)?; | |
101 let (i, width) = le_f32(i)?; | |
102 let (i, height) = le_f32(i)?; | |
103 Ok((i, Sprite { | |
104 index, | |
105 x, | |
106 y, | |
107 width, | |
108 height, | |
109 })) | |
110 } | |
111 | |
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112 macro_rules! declare_anm_instructions { |
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113 ($($opcode:tt => fn $name:ident($($arg:ident: $arg_type:ident),*)),*,) => { |
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114 /// Available instructions in an `Anm0`. |
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115 #[allow(missing_docs)] |
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116 #[derive(Debug, Clone, Copy)] |
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117 pub enum Instruction { |
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118 $( |
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119 $name($($arg_type),*) |
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120 ),* |
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121 } |
638 | 122 |
639
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123 fn parse_instruction_args(input: &[u8], opcode: u8) -> IResult<&[u8], Instruction> { |
638 | 124 let mut i = &input[..]; |
639
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125 let instr = match opcode { |
638 | 126 $( |
127 $opcode => { | |
128 $( | |
639
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129 let (i2, $arg) = concat_idents!(le_, $arg_type)(i)?; |
638 | 130 i = i2; |
131 )* | |
639
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132 Instruction::$name($($arg),*) |
638 | 133 } |
134 )* | |
135 _ => unreachable!() | |
639
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136 }; |
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137 Ok((i, instr)) |
638 | 138 } |
139 }; | |
140 } | |
141 | |
142 declare_anm_instructions!{ | |
639
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143 0 => fn Delete(), |
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144 1 => fn LoadSprite(sprite_number: u32), |
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145 2 => fn SetScale(sx: f32, sy: f32), |
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146 3 => fn SetAlpha(alpha: u32), |
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147 4 => fn SetColor(red: u8, green: u8, blue: u8/*, XXX: x8*/), |
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148 5 => fn Jump(instruction: u32), |
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149 7 => fn ToggleMirrored(), |
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150 9 => fn SetRotations3d(x: f32, y: f32, z: f32), |
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151 10 => fn SetRotationsSpeed3d(x: f32, y: f32, z: f32), |
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152 11 => fn SetScaleSpeed(sx: f32, sy: f32), |
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153 12 => fn Fade(alpha: u32, duration: u32), |
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154 13 => fn SetBlendmodeAdd(), |
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155 14 => fn SetBlendmodeAlphablend(), |
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156 15 => fn KeepStill(), |
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157 16 => fn LoadRandomSprite(min_index: u32, amplitude: u32), |
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158 17 => fn Move(x: f32, y: f32, z: f32), |
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159 18 => fn MoveToLinear(x: f32, y: f32, z: f32, duration: u32), |
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160 19 => fn MoveToDecel(x: f32, y: f32, z: f32, duration: u32), |
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161 20 => fn MoveToAccel(x: f32, y: f32, z: f32, duration: u32), |
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162 21 => fn Wait(), |
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163 22 => fn InterruptLabel(label: i32), |
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164 23 => fn SetCornerRelativePlacement(), |
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165 24 => fn WaitEx(), |
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166 25 => fn SetAllowOffset(allow: u32), // TODO: better name |
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167 26 => fn SetAutomaticOrientation(automatic: u32), |
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168 27 => fn ShiftTextureX(dx: f32), |
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169 28 => fn ShiftTextureY(dy: f32), |
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170 29 => fn SetVisible(visible: u32), |
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171 30 => fn ScaleIn(sx: f32, sy: f32, duration: u32), |
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172 31 => fn Todo(todo: u32), |
638 | 173 } |
174 | |
175 fn parse_anm0(input: &[u8]) -> IResult<&[u8], Vec<Anm0>> { | |
176 let mut list = vec![]; | |
177 let start_offset = 0; | |
178 loop { | |
179 let i = &input[start_offset..]; | |
180 let (i, num_sprites) = le_u32(i)?; | |
181 let (i, num_scripts) = le_u32(i)?; | |
182 let (i, _) = tag(b"\0\0\0\0")(i)?; | |
183 let (i, width) = le_u32(i)?; | |
184 let (i, height) = le_u32(i)?; | |
185 let (i, format) = le_u32(i)?; | |
186 let (i, _unknown1) = le_u32(i)?; | |
187 let (i, first_name_offset) = le_u32(i)?; | |
188 let (i, _unused) = le_u32(i)?; | |
189 let (i, second_name_offset) = le_u32(i)?; | |
190 let (i, version) = le_u32(i)?; | |
191 let (i, _unknown2) = le_u32(i)?; | |
192 let (i, _texture_offset) = le_u32(i)?; | |
193 let (i, has_data) = le_u32(i)?; | |
194 let (i, _next_offset) = le_u32(i)?; | |
195 let (mut i, unknown3) = le_u32(i)?; | |
196 | |
197 assert_eq!(version, 0); | |
198 assert_eq!(unknown3, 0); | |
199 assert_eq!(has_data, 0); | |
200 | |
201 let mut sprite_offsets = vec![]; | |
202 for _ in 0..num_sprites { | |
203 let (i2, offset) = le_u32(i)?; | |
204 sprite_offsets.push(offset as usize); | |
205 i = i2; | |
206 } | |
207 | |
208 let mut script_offsets = vec![]; | |
209 for _ in 0..num_scripts { | |
210 let (i2, index) = le_u32(i)?; | |
211 let (i2, offset) = le_u32(i2)?; | |
212 script_offsets.push((index as u8, offset as usize)); | |
213 i = i2; | |
214 } | |
215 | |
216 let i = &input[start_offset + first_name_offset as usize..]; | |
217 let (_, first_name) = parse_name(i, first_name_offset > 0)?; | |
218 | |
219 let i = &input[start_offset + second_name_offset as usize..]; | |
220 let (_, second_name) = parse_name(i, second_name_offset > 0)?; | |
221 | |
222 let mut sprites = vec![]; | |
223 let mut i; | |
224 for offset in sprite_offsets { | |
225 i = &input[start_offset + offset..]; | |
226 let (_, sprite) = parse_sprite(i)?; | |
227 sprites.push(sprite); | |
228 } | |
229 | |
230 let mut scripts = HashMap::new(); | |
231 for (index, offset) in script_offsets { | |
232 i = &input[start_offset + offset..]; | |
233 let mut instruction_offsets = vec![]; | |
234 | |
235 let mut instructions = vec![]; | |
236 loop { | |
237 let tell = input.len() - i.len(); | |
238 instruction_offsets.push(tell - (start_offset + offset)); | |
239 let (i2, time) = le_u16(i)?; | |
240 let (i2, opcode) = le_u8(i2)?; | |
241 // TODO: maybe check against the size of parsed data? | |
242 let (i2, _size) = le_u8(i2)?; | |
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243 let (i2, instr) = parse_instruction_args(i2, opcode)?; |
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244 instructions.push(Call { time, instr }); |
638 | 245 i = i2; |
246 if opcode == 0 { | |
247 break; | |
248 } | |
249 } | |
250 let mut interrupts = HashMap::new(); | |
251 let mut j = 0; | |
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252 for Call { time: _, instr } in &mut instructions { |
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253 match instr { |
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254 Instruction::Jump(ref mut offset) => { |
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
638
diff
changeset
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255 let result = instruction_offsets.binary_search(&(*offset as usize)); |
a8e0219162b6
Implement AnmRunner.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
638
diff
changeset
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256 match result { |
a8e0219162b6
Implement AnmRunner.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
638
diff
changeset
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257 Ok(ptr) => *offset = ptr as u32, |
638 | 258 // TODO: make that a recoverable error instead. |
259 Err(ptr) => panic!("Instruction offset not found for pointer: {}", ptr), | |
639
a8e0219162b6
Implement AnmRunner.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
638
diff
changeset
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260 } |
638 | 261 } |
639
a8e0219162b6
Implement AnmRunner.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
638
diff
changeset
|
262 Instruction::InterruptLabel(interrupt) => { |
a8e0219162b6
Implement AnmRunner.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
638
diff
changeset
|
263 interrupts.insert(*interrupt, j + 1); |
638 | 264 } |
265 _ => () | |
266 } | |
267 j += 1; | |
268 } | |
269 scripts.insert(index, Script { | |
270 instructions, | |
271 interrupts, | |
272 }); | |
273 } | |
274 | |
275 assert!(has_data == 0); | |
276 | |
277 let anm0 = Anm0 { | |
278 size: (width, height), | |
279 format, | |
280 first_name, | |
281 second_name, | |
282 sprites, | |
283 scripts, | |
284 }; | |
285 list.push(anm0); | |
286 break; | |
287 } | |
288 Ok((b"", list)) | |
289 } | |
290 | |
291 #[cfg(test)] | |
292 mod tests { | |
293 use super::*; | |
294 use std::io::{self, Read}; | |
295 use std::fs::File; | |
296 | |
297 #[test] | |
298 fn anm0() { | |
299 let file = File::open("/home/linkmauve/games/pc/東方/TH06 ~ The Embodiment of Scarlet Devil/CM/player01.anm").unwrap(); | |
300 let mut file = io::BufReader::new(file); | |
301 let mut buf = vec![]; | |
302 file.read_to_end(&mut buf).unwrap(); | |
303 let anm0 = Anm0::from_slice(&buf).unwrap(); | |
304 assert_eq!(anm0.size, (256, 256)); | |
305 assert_eq!(anm0.format, 5); | |
306 } | |
307 } |