bool researchAvailable(int inc, int playerID, QUEUE_MODE mode)
{
// Decide whether to use IsResearchCancelledPending/IsResearchStartedPending or IsResearchCancelled/IsResearchStarted.
bool (*IsResearchCancelledFunc)(PLAYER_RESEARCH const *) = IsResearchCancelledPending;
bool (*IsResearchStartedFunc)(PLAYER_RESEARCH const *) = IsResearchStartedPending;
if (mode == ModeImmediate)
{
IsResearchCancelledFunc = IsResearchCancelled;
IsResearchStartedFunc = IsResearchStarted;
}
UDWORD incPR, incS;
bool bPRFound, bStructFound;
// if its a cancelled topic - add to list
if (IsResearchCancelledFunc(&asPlayerResList[playerID][inc]))
{
return true;
}
// if the topic is possible and has not already been researched - add to list
if ((IsResearchPossible(&asPlayerResList[playerID][inc])))
{
if (!IsResearchCompleted(&asPlayerResList[playerID][inc])
&& !IsResearchStartedFunc(&asPlayerResList[playerID][inc]))
{
return true;
}
}
// if single player mode and key topic, then ignore cos can't do it!
if (!bMultiPlayer && asResearch[inc].keyTopic)
{
return false;
}
bool researchStarted = IsResearchStartedFunc(&asPlayerResList[playerID][inc]);
if (researchStarted)
{
STRUCTURE *psBuilding = findResearchingFacilityByResearchIndex(playerID, inc); // May fail to find the structure here, if the research is merely pending, not actually started.
if (psBuilding != nullptr && psBuilding->status == SS_BEING_BUILT)
{
researchStarted = false; // Although research is started, the facility is currently being upgraded or demolished, so we want to be able to research this elsewhere.
}
}
// make sure that the research is not completed or started by another researchfac
if (!IsResearchCompleted(&asPlayerResList[playerID][inc]) && !researchStarted)
{
// Research is not completed ... also it has not been started by another researchfac
// if there aren't any PR's - go to next topic
if (asResearch[inc].pPRList.empty())
{
return false;
}
// check for pre-requisites
bPRFound = true;
for (incPR = 0; incPR < asResearch[inc].pPRList.size(); incPR++)
{
if (IsResearchCompleted(&(asPlayerResList[playerID][asResearch[inc].pPRList[incPR]])) == 0)
{
// if haven't pre-requisite - quit checking rest
bPRFound = false;
break;
}
}
if (!bPRFound)
{
// if haven't pre-requisites, skip the rest of the checks
return false;
}
// check for structure effects
bStructFound = true;
for (incS = 0; incS < asResearch[inc].pStructList.size(); incS++)
{
if (!checkSpecificStructExists(asResearch[inc].pStructList[incS], playerID))
{
//if not built, quit checking
bStructFound = false;
break;
}
}
if (!bStructFound)
{
// if haven't all structs built, skip to next topic
return false;
}
return true;
}
return false;
}
bool skTopicAvail(UWORD inc, UDWORD player)
{
UDWORD incPR, incS;
bool bPRFound, bStructFound;
//if the topic is possible and has not already been researched - add to list
if ((IsResearchPossible(&asPlayerResList[player][inc])))
{
if (!IsResearchCompleted(&asPlayerResList[player][inc])
&& !IsResearchStartedPending(&asPlayerResList[player][inc]))
{
return true;
}
}
// make sure that the research is not completed or started by another researchfac
if (!IsResearchCompleted(&asPlayerResList[player][inc])
&& !IsResearchStartedPending(&asPlayerResList[player][inc]))
{
// Research is not completed ... also it has not been started by another researchfac
//if there aren't any PR's - go to next topic
if (asResearch[inc].pPRList.empty())
{
return false;
}
//check for pre-requisites
bPRFound = true;
for (incPR = 0; incPR < asResearch[inc].pPRList.size(); incPR++)
{
if (IsResearchCompleted(&asPlayerResList[player][asResearch[inc].pPRList[incPR]]) == 0)
{
//if haven't pre-requisite - quit checking rest
bPRFound = false;
break;
}
}
if (!bPRFound)
{
//if haven't pre-requisites, skip the rest of the checks
return false;
}
//check for structure effects
bStructFound = true;
for (incS = 0; incS < asResearch[inc].pStructList.size(); incS++)
{
//if (!checkStructureStatus(asStructureStats + asResearch[inc].
// pStructList[incS], playerID, SS_BUILT))
if (!checkSpecificStructExists(asResearch[inc].pStructList[incS],
player))
{
//if not built, quit checking
bStructFound = false;
break;
}
}
if (!bStructFound)
{
//if haven't all structs built, skip to next topic
return false;
}
return true;
}
return false;
}
BOOL skTopicAvail(UWORD inc, UDWORD player)
{
UDWORD incPR, incS;
PLAYER_RESEARCH *pPlayerRes = asPlayerResList[player];
BOOL bPRFound, bStructFound;
//if the topic is possible and has not already been researched - add to list
if ((IsResearchPossible(&pPlayerRes[inc])))
{
if ((IsResearchCompleted(&pPlayerRes[inc])==FALSE) && (IsResearchStarted(&pPlayerRes[inc])==FALSE))
{
return TRUE;
}
}
// make sure that the research is not completed or started by another researchfac
if ((IsResearchCompleted(&pPlayerRes[inc])==FALSE) && (IsResearchStarted(&pPlayerRes[inc])==FALSE))
{
// Research is not completed ... also it has not been started by another researchfac
//if there aren't any PR's - go to next topic
if (!asResearch[inc].numPRRequired)
{
return FALSE;
}
//check for pre-requisites
bPRFound = TRUE;
for (incPR = 0; incPR < asResearch[inc].numPRRequired; incPR++)
{
if (IsResearchCompleted(&(pPlayerRes[asResearch[inc].pPRList[incPR]]))==0)
{
//if haven't pre-requisite - quit checking rest
bPRFound = FALSE;
break;
}
}
if (!bPRFound)
{
//if haven't pre-requisites, skip the rest of the checks
return FALSE;
}
//check for structure effects
bStructFound = TRUE;
for (incS = 0; incS < asResearch[inc].numStructures; incS++)
{
//if (!checkStructureStatus(asStructureStats + asResearch[inc].
// pStructList[incS], playerID, SS_BUILT))
if (!checkSpecificStructExists(asResearch[inc].pStructList[incS],
player))
{
//if not built, quit checking
bStructFound = FALSE;
break;
}
}
if (!bStructFound)
{
//if haven't all structs built, skip to next topic
return FALSE;
}
return TRUE;
}
return FALSE;
}