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(svn r13088) -Codechange: use SigSegState enum instead of bool variable (michi_cc)

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smatz
2008-05-14 16:38:53 +00:00
parent 2475959196
commit 9b8d16b7ff
3 changed files with 15 additions and 6 deletions
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11
src/signal.cpp
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@@ -468,12 +468,12 @@ static inline void ResetSets()
* @return false iff presignal entry would be green (needed for trains leaving depot)
* @pre IsValidPlayer(owner)
*/
static bool UpdateSignalsInBuffer(Owner owner)
static SigSegState UpdateSignalsInBuffer(Owner owner)
{
assert(IsValidPlayer(owner));
bool first = true; // first block?
bool state = false; // value to return
SigSegState state = SIGSEG_FREE; // value to return
TileIndex tile;
DiagDirection dir;
@@ -532,7 +532,10 @@ static bool UpdateSignalsInBuffer(Owner owner)
if (first) {
first = false;
state = (flags & SF_TRAIN) || (flags & SF_EXIT && !(flags & SF_GREEN)) || (flags & SF_FULL); // true iff train CAN'T leave the depot
if ((flags & SF_TRAIN) || (flags & SF_EXIT && !(flags & SF_GREEN)) || (flags & SF_FULL)) {
/* SIGSEG_FREE is set by default */
state = SIGSEG_FULL;
}
}
/* do not do anything when some buffer was full */
@@ -629,7 +632,7 @@ void AddSideToSignalBuffer(TileIndex tile, DiagDirection side, Owner owner)
* @param owner owner whose signals we will update
* @return false iff train can leave depot
*/
bool UpdateSignalsOnSegment(TileIndex tile, DiagDirection side, Owner owner)
SigSegState UpdateSignalsOnSegment(TileIndex tile, DiagDirection side, Owner owner)
{
assert(_globset.IsEmpty());
_globset.Add(tile, side);