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some things needed for supporting original save/load screens in v3 games, doesn't fully work but doesn't break anything either

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svn-id: r9940
This commit is contained in:
Jonathan Gray 2003-08-31 14:58:56 +00:00
parent 3b62d9b4da
commit f77faa2313
2 changed files with 104 additions and 4 deletions
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2
scumm/intern.h
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@ -46,6 +46,8 @@ protected:
virtual void decodeParseString();
int getWordVararg(int *ptr);
void saveVars();
void loadVars();
virtual int getVar();
virtual int getVarOrDirectByte(byte mask);

106
scumm/script_v5.cpp
View File

@ -831,7 +831,73 @@ void Scumm_v5::o5_getStringWidth() {
void Scumm_v5::o5_saveLoadVars() {
// TODO
error("o5_saveLoadVars not yet implemented");
if (fetchScriptByte() == 1)
saveVars();
else
loadVars();
}
void Scumm_v5::saveVars() {
int a, b;
while ((_opcode = fetchScriptByte()) != 0) {
switch (_opcode & 0x1F) {
case 0x01: // write a range of variables
getResultPos();
a = _resultVarNumber;
getResultPos();
b = _resultVarNumber;
warning("stub saveVars: vars %d -> %d", a, b);
break;
case 0x02: // write a range of string variables
a = getVarOrDirectByte(0x80);
b = getVarOrDirectByte(0x40);
warning("stub saveVars: strings %d -> %d", a, b);
break;
case 0x03: // open file
a = resStrLen(_scriptPointer);
warning("stub saveVars to %s", _scriptPointer);
_scriptPointer += a + 1;
break;
case 0x1F: // close file
warning("stub saveVars close file");
break;
}
}
}
void Scumm_v5::loadVars() {
int a, b;
hexdump(_scriptPointer, 64);
while ((_opcode = fetchScriptByte()) != 0) {
switch (_opcode & 0x1F) {
case 0x01: // read a range of variables
getResultPos();
a = _resultVarNumber;
getResultPos();
b = _resultVarNumber;
warning("stub loadVars: vars %d -> %d", a, b);
break;
case 0x02: // read a range of string variables
a = getVarOrDirectByte(0x80);
b = getVarOrDirectByte(0x40);
warning("stub loadVars: strings %d -> %d", a, b);
break;
case 0x03: // open file
a = resStrLen(_scriptPointer);
warning("stub loadVars from %s", _scriptPointer);
_scriptPointer += a + 1;
break;
case 0x1F: // close file
warning("stub loadVars close file");
break;
}
}
}
void Scumm_v5::o5_expression() {
@ -1020,10 +1086,42 @@ void Scumm_v5::o5_getActorY() {
void Scumm_v5::o5_getAnimCounter() {
getResultPos();
// Loom uses this opcode in its load/save screen.
if (_gameId == GID_LOOM) {
//if (_gameId == GID_LOOM) {
if (_version <= 3) {
byte a = getVarOrDirectByte(0x80);
warning("TODO: Loom saveLoad(%d)", a);
setResult(0);
byte slot = a & 0x1F;
byte result = 0;
switch(a & 0xE0) {
case 0x00: // num slots available
result = 100;
break;
case 0x20: // dos drive?
result = 0;
break;
case 0x40: // load
if (loadState(slot, _saveLoadCompatible))
result = 3; // sucess
else
result = 5; // failed to load
break;
case 0x80: // save
if (saveState(slot, _saveLoadCompatible))
result = 0;
else
result = 2;
case 0xC0: // test if save exists
bool avail_saves[100];
SaveFileManager *mgr = _system->get_savefile_manager();
listSavegames(avail_saves, ARRAYSIZE(avail_saves), mgr);
delete mgr;
if (avail_saves[slot])
result = 6; // save file exists
else
result = 7; // save file does not exist
break;
}
setResult(result);
} else {
int act = getVarOrDirectByte(0x80);
Actor *a = derefActor(act, "o5_getAnimCounter");