<URL: http://bugs.freeciv.org/Ticket/Display.html?id=38372 >
Patch. Untested. - Per
Index: ai/advdiplomacy.c
===================================================================
--- ai/advdiplomacy.c (revision 12880)
+++ ai/advdiplomacy.c (working copy)
@@ -125,7 +125,8 @@
{
int bulbs, tech_want, worth;
- if (get_invention(pplayer, tech) == TECH_KNOWN) {
+ if (get_invention(pplayer, tech) == TECH_KNOWN
+ || !tech_is_available(pplayer, tech)) {
return 0;
}
bulbs = total_bulbs_required_for_goal(pplayer, tech) * 3;
@@ -965,7 +966,9 @@
bool is_dangerous;
tech_type_iterate(tech) {
- if (tech == A_NONE) {
+ if (tech == A_NONE
+ || !tech_is_available(player2, tech)
+ || !tech_is_available(player1, tech)) {
worth[tech] = 0;
continue;
}
@@ -1034,10 +1037,12 @@
if (players_on_same_team(pplayer, aplayer)) {
for (index = A_FIRST; index < game.control.num_tech_types; index++) {
if ((get_invention(pplayer, index) != TECH_KNOWN)
- && (get_invention(aplayer, index) == TECH_KNOWN)) {
+ && (get_invention(aplayer, index) == TECH_KNOWN)
+ && tech_is_available(pplayer, index)) {
ai_diplomacy_suggest(aplayer, pplayer, CLAUSE_ADVANCE, index);
} else if ((get_invention(pplayer, index) == TECH_KNOWN)
- && (get_invention(aplayer, index) != TECH_KNOWN)) {
+ && (get_invention(aplayer, index) != TECH_KNOWN)
+ && tech_is_available(aplayer, index)) {
ai_diplomacy_suggest(pplayer, aplayer, CLAUSE_ADVANCE, index);
}
}
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