initial commit

2026-08-20 22:49:23 +00:00 · 2023-09-10 20:38:49 -05:00
commit 7a1366303f
16 changed files with 3268 additions and 0 deletions
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+const { PSN_PACKET_HEADER_PARSER } = require('../common');
+const Parser = require('binary-parser').Parser;
+
+const PSN_DATA_TRACKER_FIELD_PARSER = new Parser()
+  .uint16le('id')
+  .uint16le('data_len', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return Number.parseInt(binary.substring(1), 2);
+    },
+  })
+  .seek(-2)
+  .uint16le('has_subchunks', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return binary.charAt(0) === '1';
+    },
+  })
+  .choice('data', {
+    tag: 'id',
+    choices: {
+      0x0000: new Parser().floatle('pos_x').floatle('pos_y').floatle('pos_z'),
+      0x0001: new Parser().floatle('speed_x').floatle('speed_y').floatle('speed_z'),
+      0x0002: new Parser().floatle('ori_x').floatle('ori_y').floatle('ori_z'),
+      0x0003: new Parser().floatle('validity'),
+      0x0004: new Parser().floatle('accel_x').floatle('accel_y').floatle('accel_z'),
+      0x0005: new Parser().floatle('trgtpos_x').floatle('trgtpos_y').floatle('trgtpos_z'),
+      0x0006: new Parser().uint64le('tracker_timestamp'),
+    },
+  });
+
+const PSN_DATA_TRACKER_PARSER = new Parser()
+  .uint16le('id')
+  .uint16le('data_len', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return Number.parseInt(binary.substring(1), 2);
+    },
+  })
+  .seek(-2)
+  .uint16le('has_subchunks', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return binary.charAt(0) === '1';
+    },
+  })
+  .buffer('data', {
+    length: 'data_len',
+  });
+
+const PSN_DATA_TRACKER_LIST_PARSER = new Parser()
+  .uint16le('id')
+  .uint16le('data_len', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return Number.parseInt(binary.substring(1), 2);
+    },
+  })
+  .seek(-2)
+  .uint16le('has_subchunks', {
+    formatter: (item) => {
+      const binary = item.toString(2).padStart(16, '0');
+      return binary.charAt(0) === '1';
+    },
+  })
+  .array('trackers', { type: PSN_DATA_TRACKER_PARSER, lengthInBytes: 'data_len' });
+
+const PSN_DATA_CHUNK_DATA_PARSER = new Parser()
+  .nest('packet_header', { type: PSN_PACKET_HEADER_PARSER })
+  .nest('tracker_list', { type: PSN_DATA_TRACKER_LIST_PARSER });
+
+module.exports = {
+  PSN_DATA_CHUNK_DATA_PARSER,
+  PSN_DATA_TRACKER_FIELD_PARSER,
+  PSN_DATA_TRACKER_LIST_PARSER,
+  PSN_DATA_TRACKER_PARSER,
+};