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mission_impossible [2019/06/09 03:11] shygoo [Level Objects] use vec3f for position and rotation |
mission_impossible [2019/06/17 01:10] shygoo link rom map & sool engine pages |
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| - | ====== Mission Impossible ====== | + | ====== Mission Impossible Hacking ====== |
| - | Scratch page for ROM of the Month | + | **June 2019 [[rom_of_the_month]]** |
| + | |||
| + | This page is under construction! Feel free to add notes and links in whatever way you see fit - we'll polish everything towards the end of the month. | ||
| + | ---- | ||
| + | ===== Tools ===== | ||
| + | * [[https://github.com/hack64-net/rotm/releases/tag/miextract|miextract]] - Basic command-line ROM decompressor | ||
| + | |||
| + | ---- | ||
| + | ===== See Also ===== | ||
| + | * [[mission_impossible:rom_map]] | ||
| + | * [[mission_impossible:sool_engine]] | ||
| + | * [[https://hack64.net/Thread-RotM-June-2019-Mission-Impossible|Mission Impossible discussion thread]] | ||
| + | * [[https://hackmd.io/-WVc2PjoSkS06XMpV55bsw?edit|n64split config]] | ||
| ---- | ---- | ||
| Line 224: | Line 236: | ||
| </code> | </code> | ||
| + | Below is the header struct for level object placement data. When a level is loaded, one of these structs is decompressed from ROM along with ObjectPosRot and ObjectPosArray structs that follow. All pointer members of this struct are initially offsets relative to the beginning of the struct, but the game converts them to virtual addresses in-place. | ||
| + | <code> | ||
| + | struct ObjectPlacements | ||
| + | { | ||
| + | /*0x00*/ s32 numPlacements0; | ||
| + | /*0x04*/ struct ObjectPosRot *placements0; | ||
| + | /*0x08*/ s32 numPlacements1; | ||
| + | /*0x0C*/ struct ObjectPosRot *placements1; | ||
| + | /*0x10*/ s32 numPlacements2; | ||
| + | /*0x14*/ struct ObjectPosRot *placements2; // unconfirmed type | ||
| + | /*0x18*/ s32 numPlacements3; | ||
| + | /*0x1C*/ struct ObjectPosArray *placements3[]; | ||
| + | }; | ||
| + | </code> | ||
| + | |||
| + | <code> | ||
| + | struct ObjectPosRot | ||
| + | { | ||
| + | /*0x00*/ u8 unk00[2]; | ||
| + | /*0x02*/ vec3s position; | ||
| + | /*0x08*/ vec3s rotation; | ||
| + | }; | ||
| + | </code> | ||
| + | |||
| + | <code> | ||
| + | struct ObjectPosArray | ||
| + | { | ||
| + | /*0x00*/ s32 numPositions; | ||
| + | /*0x04*/ vec3s positions[]; | ||
| + | }; | ||
| + | </code> | ||
| + | |||
| + | <code> | ||
| + | /*0x800A98CC*/ struct ObjectPlacements *gObjectPlacements; | ||
| + | </code> | ||
| + | |||
| + | Breakdown of object placement data for the first mission: https://pastebin.com/raw/657rL7jD | ||
mission_impossible.txt · Last modified: 2019/07/01 05:23 by shygoo