bonk loading

MarathonData.md

@@ -384,7 +384,7 @@ main menu, and physics files. Here is a listing of all chunks used within them:
 | `PLAT` | No test data (platform static data)                                |
 | `medi` | Media (liquids)                                                    |
 | `ambi` | Array of Ambient Sounds                                            |
-| `bonk` | Not analyzed (random sounds)                                       |
+| `bonk` | Array of Random Sounds                                             |
 | `term` | Array of Terminals                                                 |
 | `iidx` | Not analyzed (map indices)                                         |
 | `ShPa` | Not analyzed (shapes)                                              |
@@ -771,6 +771,27 @@ Ambient Sound is 16 bytes.
 
 - `Volume` is the volume of this sound, in range 0-256.
 
+### Random Sound ###
+
+Random Sound is 32 bytes.
+
+| Name           | Type       | Offset |
+| ----           | ----       | ------ |
+| `Flags`        | `u16`      | `0`    |
+| `Index`        | `u16`      | `2`    |
+| `Volume`       | `u16`      | `4`    |
+| `DeltaVolume`  | `u16`      | `6`    |
+| `Period`       | `u16`      | `8`    |
+| `DeltaPeriod`  | `u16`      | `10`   |
+| `Angle`        | `angle`    | `12`   |
+| `DeltaAngle`   | `angle`    | `14`   |
+| `Pitch`        | `fixed`    | `16`   |
+| `DeltaPitch`   | `fixed`    | `20`   |
+| `Phase`        | `u16`      | `24`   |
+
+- `Flags` is a Random Sound Flags bit field.
+- `Phase` must be `65535`.
+
 ### Static Map Info ###
 
 Static Map Info is 88 bytes.
@@ -1722,4 +1743,10 @@ gravity.
 | `NoMediaObstruct` | `5`  |
 | `Ambient`         | `6`  |
 
+### Random Sound Flags ###
+
+| Name              | Bit  |
+| ----              | ---  |
+| `IgnoreDirection` | `0`  |
+
 <!-- EOF -->

src/main.rs

@@ -56,6 +56,7 @@ fn dump_chunk(opt: &Options, cid: Ident, cnk: &[u8], eid: u16) -> ResultS<()>
          b"LITE" => make_yaml(opt, &rd_array(cnk, map::read_lite)?)?,
          b"OBJS" => make_yaml(opt, &rd_array(cnk, map::read_objs)?)?,
          b"ambi" => make_yaml(opt, &rd_array(cnk, map::read_ambi)?)?,
+         b"bonk" => make_yaml(opt, &rd_array(cnk, map::read_bonk)?)?,
          b"term" => make_yaml(opt, &rd_array(cnk, trm::read_term)?)?,
          _ => (),
       }

src/marathon/map.rs

@@ -229,6 +229,32 @@ pub fn read_ambi(b: &[u8]) -> ResultS<(SoundAmbi, usize)>
    Ok((SoundAmbi{index, volume}, 16))
 }
 
+pub fn read_bonk(b: &[u8]) -> ResultS<(SoundRand, usize)>
+{
+   read_data! {
+      32, BE in b =>
+      flags   = u16[0];
+      index   = u16[2];
+      vol_nrm = u16[4];
+      vol_dta = u16[6];
+      prd_nrm = u16[8];
+      prd_dta = u16[10];
+      yaw_nrm = u16[12];
+      yaw_dta = u16[14];
+      pit_nrm = u32[16];
+      pit_dta = u32[20];
+   }
+
+   let no_dir  = flags != 0;
+   let yaw_nrm = Angle::from_bits(yaw_nrm);
+   let yaw_dta = Angle::from_bits(yaw_dta);
+   let pit_nrm = Fixed::from_bits(pit_nrm);
+   let pit_dta = Fixed::from_bits(pit_dta);
+
+   Ok((SoundRand{no_dir, index, vol_nrm, vol_dta, prd_nrm, prd_dta, yaw_nrm,
+                 yaw_dta, pit_nrm, pit_dta}, 32))
+}
+
 #[derive(Clone, PartialEq, Serialize)]
 pub struct Point
 {
@@ -339,6 +365,21 @@ pub struct SoundAmbi
    pub volume: u16,
 }
 
+#[derive(Debug, Serialize)]
+pub struct SoundRand
+{
+   pub no_dir:  bool,
+   pub index:   u16,
+   pub vol_nrm: u16,
+   pub vol_dta: u16,
+   pub prd_nrm: u16,
+   pub prd_dta: u16,
+   pub yaw_nrm: Angle,
+   pub yaw_dta: Angle,
+   pub pit_nrm: Fixed,
+   pub pit_dta: Fixed,
+}
+
 #[derive(Debug, PartialEq, Serialize)]
 pub struct Minf
 {