void ScummEngine_v0::o_getClosestActor() {
int act, check_act;
int dist;
// This code can't detect any actors farther away than 255 units
// (pixels in newer games, characters in older ones.) But this is
// perfectly OK, as it is exactly how the original behaved.
int closest_act = 0xFF, closest_dist = 0xFF;
getResultPos();
act = getVarOrDirectByte(PARAM_1);
check_act = (_opcode & PARAM_2) ? 25 : 7;
do {
dist = getObjActToObjActDist(actorToObj(act), actorToObj(check_act));
if (dist < closest_dist) {
closest_dist = dist;
closest_act = check_act;
}
} while (--check_act);
setResult(closest_act);
}
void ScummEngine_v0::o_getActorMoving() {
getResultPos();
int act = getVarOrDirectByte(PARAM_1);
Actor *a = derefActor(act, "o_getActorMoving");
setResult(a->_moving);
}
void ScummEngine_v2::o2_getObjPreposition() {
getResultPos();
int obj = getVarOrDirectWord(PARAM_1);
if (whereIsObject(obj) != WIO_NOT_FOUND) {
byte *ptr = getOBCDFromObject(obj) + 12;
setResult(*ptr >> 5);
} else {
void ScummEngine_v0::o_getBitVar() {
getResultPos();
byte flag = getVarOrDirectByte(PARAM_1);
byte mask = getVarOrDirectByte(PARAM_2);
setResult((_bitVars[flag] & (1 << mask)) ? 1 : 0);
debug(0, "o_getBitVar (%d, %d %d)", flag, mask, _bitVars[flag] & (1 << mask));
}
void ScummEngine_v0::o_getActorBitVar() {
getResultPos();
byte act = getVarOrDirectByte(PARAM_1);
byte mask = getVarOrDirectByte(PARAM_2);
Actor_v0 *a = (Actor_v0 *)derefActor(act, "o_getActorBitVar");
setResult((a->_miscflags & mask) ? 1 : 0);
debug(0, "o_getActorBitVar(%d, %d, %d)", act, mask, (a->_miscflags & mask));
}
void ScummEngine_v2::o2_assignVarByte() {
getResultPos();
setResult(fetchScriptByte());
}
void ScummEngine_v0::o_getObjectOwner() {
getResultPos();
int obj = getVarOrDirectWord(PARAM_1);
setResult(getOwner(obj ? obj : _cmdObject));
}