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| author | Strangerke | 2016-08-30 23:31:04 +0200 |
|---|---|---|
| committer | Strangerke | 2016-08-30 23:31:04 +0200 |
| commit | ff96b8eeb6f5f6e17f630cbf3705b3ae73a5f61b (patch) | |
| tree | 28198b2587e0168a8563e068fcf83409c257764c /engines/dm/group.cpp | |
| parent | 95272838e16bb62f708cc37cf13713580b296b5d (diff) | |
| download | scummvm-rg350-ff96b8eeb6f5f6e17f630cbf3705b3ae73a5f61b.tar.gz scummvm-rg350-ff96b8eeb6f5f6e17f630cbf3705b3ae73a5f61b.tar.bz2 scummvm-rg350-ff96b8eeb6f5f6e17f630cbf3705b3ae73a5f61b.zip | |
DM: Refactor a couple of 'if' nightmares in getDistanceBetweenUnblockedSquares
Diffstat (limited to 'engines/dm/group.cpp')
| -rw-r--r-- | engines/dm/group.cpp | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/engines/dm/group.cpp b/engines/dm/group.cpp index 9d453b8ee4..6fd4692543 100644 --- a/engines/dm/group.cpp +++ b/engines/dm/group.cpp @@ -1204,13 +1204,24 @@ int16 GroupMan::getDistanceBetweenUnblockedSquares(int16 srcMapX, int16 srcMapY, || (CALL_MEMBER_FN(*_vm->_groupMan, isBlocked))(pathMapX = pathMapX + axisStepX, pathMapY = pathMapY + axisStepY)) return 0; } else { - if ((valueA = ((largestAxisDistance = (isDistanceXSmallerThanDistanceY ? ((largestAxisDistance = pathMapY - srcMapY) ? ((pathMapX + axisStepX - srcMapX) << 6) / largestAxisDistance : 128) : ((largestAxisDistance = pathMapX + axisStepX - srcMapX) ? ((pathMapY - srcMapY) << 6) / largestAxisDistance : 128)) - valueC) < 0) ? -largestAxisDistance : largestAxisDistance) < (valueB = ((largestAxisDistance = (isDistanceXSmallerThanDistanceY ? ((largestAxisDistance = pathMapY + axisStepY - srcMapY) ? ((pathMapX - srcMapX) << 6) / largestAxisDistance : 128) : ((largestAxisDistance = pathMapX - srcMapX) ? ((pathMapY + axisStepY - srcMapY) << 6) / largestAxisDistance : 128)) - valueC) < 0) ? -largestAxisDistance : largestAxisDistance)) { - pathMapX += axisStepX; + if (isDistanceXSmallerThanDistanceY) { + valueA = ABS(((pathMapY - srcMapY) ? ((pathMapX + axisStepX - srcMapX) << 6) / largestAxisDistance : 128) - valueC); + valueB = ABS(((pathMapY + axisStepY - srcMapY) ? ((pathMapX - srcMapX) << 6) / largestAxisDistance : 128) - valueC); } else { - pathMapY += axisStepY; + valueA = ABS(((pathMapX + axisStepX - srcMapX) ? ((pathMapY - srcMapY) << 6) / largestAxisDistance : 128) - valueC); + valueB = ABS(((pathMapX - srcMapX) ? ((pathMapY + axisStepY - srcMapY) << 6) / largestAxisDistance : 128) - valueC); } - if ((CALL_MEMBER_FN(*_vm->_groupMan, isBlocked))(pathMapX, pathMapY) && ((valueA != valueB) || (CALL_MEMBER_FN(*_vm->_groupMan, isBlocked))(pathMapX = pathMapX + axisStepX, pathMapY = pathMapY - axisStepY))) { - return 0; + + if (valueA < valueB) + pathMapX += axisStepX; + else + pathMapY += axisStepY; + + if ((CALL_MEMBER_FN(*_vm->_groupMan, isBlocked))(pathMapX, pathMapY)) { + pathMapX += axisStepX; + pathMapY -= axisStepY; + if (((valueA != valueB) || (CALL_MEMBER_FN(*_vm->_groupMan, isBlocked))(pathMapX, pathMapY))) + return 0; } } } while (getDistance(pathMapX, pathMapY, srcMapX, srcMapY) > 1); |