nancygold's Journal

Stronghold Decompilation Progress
Almost done recovering the data files.
That was really tedious...
Remains saving sprite sheets as *.LBM, instead of PNG.
Then the grab process should be working again.
That will allow easily decompiling the stash functions.

Recovering unit sprite sheets was involved.
The game has a set of hardcoded agent archetype structures.
Each references a hardcoded animation table.
Each agent variation can have up to 6 sprite sheets:
three races, two genders.
Ghidra structure support is top notch.
Compared to IDA Pro, you can just define the areas you care about.

typedef struct {
  uint8_t ai; //0=player controlled, 1=computer controlled
  uint8_t type;
  int8_t nanims;
  uint32_t sprs[6]; //stash handle for sprfls
  undefined field5_0x1b;
  undefined field6_0x1c;
  undefined field7_0x1d;
  undefined field8_0x1e;
  undefined field9_0x1f;
  undefined field10_0x20;
  undefined field11_0x21;
  undefined field12_0x22;
  undefined field13_0x23;
  uint32_t name;
  uint32_t anms;
  int16_t sprfls[6]; /* sprite file ids; 0,1,2=male; 3,4,5=female */
  undefined field20_0x38;
  undefined field21_0x39;
  undefined field22_0x3a;
  undefined field23_0x3b;
  undefined field24_0x3c;
  undefined field25_0x3d;
  undefined field26_0x3e;
  undefined field27_0x3f;
  undefined field28_0x40;
  undefined field29_0x41;
  undefined field30_0x42;
  undefined field31_0x43;
  undefined field32_0x44;
  undefined field33_0x45;
  undefined field34_0x46;
  undefined field35_0x47;
  undefined field36_0x48;
  undefined field37_0x49;
  undefined field38_0x4a;
  undefined field39_0x4b;
  undefined field40_0x4c;
  undefined field41_0x4d;
  undefined field42_0x4e;
  undefined field43_0x4f;
  undefined field44_0x50;
  undefined field45_0x51;
  undefined field46_0x52;
  undefined field47_0x53;
  int16_t prtfls[6]; /* portrait file ids; 0,1,2=male; 3,4,5=female */
  uint32_t prts[6]; /* portrait stash handles */
  uint32_t prtpals[6]; /* portrait palettes */
  uint32_t wpn_name;
  undefined field52_0x94;
} PACKED agntG_t;

Current Mood: accomplished