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GLK: SCOTT: Implement readTI99ExplicitActions

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Avijeet 2022-06-25 22:19:10 +05:30 committed by Eugene Sandulenko
parent 3d9f511881
commit b90a145c29
2 changed files with 48 additions and 0 deletions
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3
engines/glk/scott/globals.h
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@ -215,7 +215,10 @@ public:
int _maxMessages = 0;
int _maxItemDescr = 0;
size_t _ti99ImplicitExtent = 0;
size_t _ti99ExplicitExtent = 0;
uint8_t *_ti99ImplicitActions = nullptr;
uint8_t *_ti99ExplicitActions = nullptr;
uint8_t **_verbActionOffsets = nullptr;
public:
Globals();

45
engines/glk/scott/load_ti99_4a.cpp
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@ -216,7 +216,52 @@ void readTI99ImplicitActions(DataHeader dh) {
}
void readTI99ExplicitActions(DataHeader dh) {
uint8_t *ptr, *start, *end, *blockstart;
uint16_t address;
int loopFlag;
int i;
start = _G(_entireFile) + _G(_fileLength);
end = _G(_entireFile);
size_t explicitOffset = fixAddress(fixWord(dh._pExplicit));
blockstart = _G(_entireFile) + explicitOffset;
_G(_verbActionOffsets) = new uint8_t*[dh._numVerbs + 1];
for (i = 0; i <= dh._numVerbs; i++) {
ptr = blockstart;
address = getWord(ptr + ((i)*2));
_G(_verbActionOffsets)[i] = nullptr;
if (address != 0) {
ptr = _G(_entireFile) + fixAddress(address);
if (ptr < start)
start = ptr;
_G(_verbActionOffsets)[i] = ptr;
loopFlag = 0;
while (loopFlag != 1) {
if (ptr[1] == 0)
loopFlag = 1;
/* go to next block. */
ptr += 1 + ptr[1];
if (ptr > end)
end = ptr;
}
}
}
_G(_ti99ExplicitExtent) = end - start;
_G(_ti99ExplicitActions) = new uint8_t[_G(_ti99ExplicitExtent)];
memcpy(_G(_ti99ExplicitActions), start, _G(_ti99ExplicitExtent));
for (i = 0; i <= dh._numVerbs; i++) {
if (_G(_verbActionOffsets)[i] != nullptr) {
_G(_verbActionOffsets)[i] = _G(_ti99ExplicitActions) + (_G(_verbActionOffsets)[i] - start);
}
}
}
uint8_t *loadTitleScreen() {