/**************************************************************************
Returns state of the tech for current pplayer.
This can be: TECH_KNOWN, TECH_UNKNOWN, or TECH_PREREQS_KNOWN
Should be called with existing techs or A_FUTURE
If pplayer is NULL this checks whether any player knows the tech (used
by the client).
**************************************************************************/
enum tech_state player_invention_state(const struct player *pplayer,
Tech_type_id tech)
{
fc_assert_ret_val(tech == A_FUTURE
|| (tech >= 0 && tech < game.control.num_tech_types),
-1);
if (!pplayer) {
if (tech != A_FUTURE && game.info.global_advances[tech]) {
return TECH_KNOWN;
} else {
return TECH_UNKNOWN;
}
} else {
struct player_research *research = player_research_get(pplayer);
/* Research can be null in client when looking for tech_leakage
* from player not yet received. */
if (research) {
return research->inventions[tech].state;
} else {
return TECH_UNKNOWN;
}
}
}
/**************************************************************************
Marks all techs which are requirements for goal in
pplayer->research->inventions[goal].required_techs. Works recursive.
**************************************************************************/
static void build_required_techs_helper(struct player *pplayer,
Tech_type_id tech,
Tech_type_id goal)
{
/* The is_tech_a_req_for_goal condition is true if the tech is
* already marked */
if (!player_invention_reachable(pplayer, tech, FALSE)
|| player_invention_state(pplayer, tech) == TECH_KNOWN
|| is_tech_a_req_for_goal(pplayer, tech, goal)) {
return;
}
/* Mark the tech as required for the goal */
BV_SET(player_research_get(pplayer)->inventions[goal].required_techs, tech);
if (advance_required(tech, AR_ONE) == goal
|| advance_required(tech, AR_TWO) == goal) {
log_fatal("tech \"%s\": requires itself",
advance_name_by_player(pplayer, goal));
exit(EXIT_FAILURE);
}
build_required_techs_helper(pplayer, advance_required(tech, AR_ONE), goal);
build_required_techs_helper(pplayer, advance_required(tech, AR_TWO), goal);
}
/****************************************************************************
Player has researched a new technology
****************************************************************************/
static void tech_researched(struct player *plr)
{
struct player_research *research = player_research_get(plr);
/* plr will be notified when new tech is chosen */
if (!is_future_tech(research->researching)) {
notify_embassies(plr, NULL, NULL, E_TECH_GAIN, ftc_server,
_("The %s have researched %s."),
nation_plural_for_player(plr),
advance_name_researching(plr));
} else {
notify_embassies(plr, NULL, NULL, E_TECH_GAIN, ftc_server,
_("The %s have researched Future Tech. %d."),
nation_plural_for_player(plr),
research->future_tech);
}
/* Deduct tech cost */
research->bulbs_researched =
MAX(research->bulbs_researched - total_bulbs_required(plr), 0);
/* cache researched technology for event signal, because found_new_tech() changes the research goal */
Tech_type_id researched_tech = research->researching;
/* do all the updates needed after finding new tech */
found_new_tech(plr, research->researching, TRUE, TRUE);
script_server_signal_emit("tech_researched", 3,
API_TYPE_TECH_TYPE,
advance_by_number(researched_tech),
API_TYPE_PLAYER, plr,
API_TYPE_STRING, "researched");
}
/**************************************************************************
Reduce conquer cost bulbs from player.
**************************************************************************/
void do_conquer_cost(struct player *pplayer, Tech_type_id tech)
{
struct player_research * research = player_research_get(pplayer);
research->bulbs_researched
-= (base_total_bulbs_required(pplayer, tech) * game.server.conquercost) / 100;
research->researching_saved = A_UNKNOWN;
}
/**************************************************************************
Returns if the given tech has to be researched to reach the
goal. The goal itself isn't a requirement of itself.
pplayer may be NULL; however the function will always return FALSE in
that case.
**************************************************************************/
bool is_tech_a_req_for_goal(const struct player *pplayer, Tech_type_id tech,
Tech_type_id goal)
{
if (tech == goal) {
return FALSE;
} else if (!pplayer) {
/* FIXME: We need a proper implementation here! */
return FALSE;
} else {
return
BV_ISSET(player_research_get(pplayer)->inventions[goal].required_techs,
tech);
}
}
/**************************************************************************
Mark as TECH_PREREQS_KNOWN each tech which is available, not known and
which has all requirements fullfiled.
If there is no such a tech mark A_FUTURE as researchable.
Recalculate research->num_known_tech_with_flag
Should always be called after player_invention_set()
**************************************************************************/
void player_research_update(struct player *pplayer)
{
enum tech_flag_id flag;
int researchable = 0;
struct player_research *research = player_research_get(pplayer);
/* This is set when the game starts, but not everybody finds out
* right away. */
player_invention_set(pplayer, A_NONE, TECH_KNOWN);
advance_index_iterate(A_FIRST, i) {
if (!player_invention_reachable(pplayer, i, FALSE)) {
player_invention_set(pplayer, i, TECH_UNKNOWN);
} else {
if (player_invention_state(pplayer, i) == TECH_PREREQS_KNOWN) {
player_invention_set(pplayer, i, TECH_UNKNOWN);
}
if (player_invention_state(pplayer, i) == TECH_UNKNOWN
&& player_invention_state(pplayer, advance_required(i, AR_ONE))
== TECH_KNOWN
&& player_invention_state(pplayer, advance_required(i, AR_TWO))
== TECH_KNOWN) {
player_invention_set(pplayer, i, TECH_PREREQS_KNOWN);
researchable++;
}
}
build_required_techs(pplayer, i);
} advance_index_iterate_end;
#ifdef DEBUG_TECH
advance_index_iterate(A_FIRST, i) {
char buf[advance_count() + 1];
advance_index_iterate(A_NONE, j) {
if (BV_ISSET(research->inventions[i].required_techs, j)) {
buf[j] = '1';
} else {
buf[j] = '0';
}
} advance_index_iterate_end;
buf[advance_count()] = '\0';
log_debug("%s: [%3d] %-25s => %s", player_name(pplayer), i,
advance_rule_name(advance_by_number(i)),
tech_state_name(player_invention_state(pplayer, i)));
log_debug("%s: [%3d] %s", player_name(pplayer), i, buf);
} advance_index_iterate_end;
/**************************************************************************
Set player knowledge about tech to given state.
**************************************************************************/
enum tech_state player_invention_set(struct player *pplayer,
Tech_type_id tech,
enum tech_state value)
{
struct player_research *research = player_research_get(pplayer);
enum tech_state old = research->inventions[tech].state;
if (old == value) {
return old;
}
research->inventions[tech].state = value;
if (value == TECH_KNOWN) {
game.info.global_advances[tech] = TRUE;
}
return old;
}
/**************************************************************************
Updates required_techs, num_required_techs and bulbs_required in
pplayer->research->inventions[goal].
**************************************************************************/
static void build_required_techs(struct player *pplayer, Tech_type_id goal)
{
int counter;
struct player_research *research = player_research_get(pplayer);
BV_CLR_ALL(research->inventions[goal].required_techs);
if (player_invention_state(pplayer, goal) == TECH_KNOWN) {
research->inventions[goal].num_required_techs = 0;
research->inventions[goal].bulbs_required = 0;
return;
}
build_required_techs_helper(pplayer, goal, goal);
/* Include the goal tech */
research->inventions[goal].bulbs_required =
base_total_bulbs_required(pplayer, goal);
research->inventions[goal].num_required_techs = 1;
counter = 0;
advance_index_iterate(A_FIRST, i) {
if (!is_tech_a_req_for_goal(pplayer, i, goal)) {
continue;
}
/*
* This is needed to get a correct result for the
* base_total_bulbs_required call.
*/
research->techs_researched++;
counter++;
research->inventions[goal].num_required_techs++;
research->inventions[goal].bulbs_required +=
base_total_bulbs_required(pplayer, i);
} advance_index_iterate_end;
/* Undo the changes made above */
research->techs_researched -= counter;
}
/**************************************************************************
Slot for selecting player/nation
**************************************************************************/
void plr_widget::nation_selected(const QItemSelection &sl,
const QItemSelection &ds)
{
QModelIndex index;
QVariant qvar;
QModelIndexList indexes = sl.indexes();
struct city *pcity;
const struct player_diplstate *state;
struct player_research *research;
char tbuf[256];
QString res;
QString sp = " ";
QString nl = "<br>";
struct player *pplayer;
int a , b;
bool added;
bool entry_exist = false;
struct player *me;
Tech_type_id tech_id;
other_player = NULL;
intel_str.clear();
tech_str.clear();
ally_str.clear();
if (indexes.isEmpty()) {
plr->update_report();
return;
}
index = indexes.at(0);
qvar = index.data(Qt::UserRole);
pplayer = reinterpret_cast<player *>(qvar.value<void *>());
other_player = pplayer;
if (pplayer->is_alive == false) {
plr->update_report();
return;
}
pcity = player_capital(pplayer);
research = player_research_get(pplayer);
switch (research->researching) {
case A_UNKNOWN:
res = _("(Unknown)");
break;
case A_UNSET:
res = _("(none)");
break;
default:
res = QString(advance_name_researching(pplayer))
+ sp + "(" + QString::number(research->bulbs_researched) + "/"
+ QString::number(total_bulbs_required(pplayer)) + ")";
break;
}
/** Formatting rich text */
intel_str =
QString("<table><tr><td><b>") + _("Nation") + QString("</b></td><td>")
+ QString(nation_adjective_for_player(pplayer))
+ QString("</td><tr><td><b>") + N_("Ruler:") + QString("</b></td><td>")
+ QString(ruler_title_for_player(pplayer, tbuf, sizeof(tbuf)))
+ QString("</td></tr><tr><td><b>") + N_("Government:")
+ QString("</b></td><td>") + QString(government_name_for_player(pplayer))
+ QString("</td></tr><tr><td><b>") + N_("Capital:")
+ QString("</b></td><td>")
+ QString(((!pcity) ? _("(unknown)") : city_name(pcity)))
+ QString("</td></tr><tr><td><b>") + N_("Gold:")
+ QString("</b></td><td>") + QString::number(pplayer->economic.gold)
+ QString("</td></tr><tr><td><b>") + N_("Tax:")
+ QString("</b></td><td>") + QString::number(pplayer->economic.tax)
+ QString("%</td></tr><tr><td><b>") + N_("Science:")
+ QString("</b></td><td>") + QString::number(pplayer->economic.science)
+ QString("%</td></tr><tr><td><b>") + N_("Luxury:")
+ QString("</b></td><td>") + QString::number(pplayer->economic.luxury)
+ QString("%</td></tr><tr><td><b>") + N_("Researching:")
+ QString("</b></td><td>") + res + QString("</td></table>");
for (int i = 0; i < static_cast<int>(DS_LAST); i++) {
added = false;
if (entry_exist) {
ally_str += "<br>";
}
entry_exist = false;
players_iterate_alive(other) {
if (other == pplayer) {
continue;
}
state = player_diplstate_get(pplayer, other);
if (static_cast<int>(state->type) == i) {
if (added == false) {
ally_str = ally_str + QString("<b>")
+ QString(diplstate_type_translated_name(
static_cast<diplstate_type>(i)))
+ ": " + QString("</b>") + nl;
added = true;
}
ally_str = ally_str + nation_plural_for_player(other) + ", ";
entry_exist = true;
}
}
players_iterate_alive_end;
if (entry_exist) {
ally_str.replace(ally_str.lastIndexOf(","), 1, ".");
}
}
me = client_player();
if ((player_has_embassy(me, pplayer) || client_is_global_observer())
&& me != pplayer) {
a = 0;
b = 0;
techs_known = QString("<b>") + _("Techs unknown by") + sp
+ QString(nation_adjective_for_player(pplayer)) + sp
+ QString(_("nation")) + QString("</b> :");
techs_unknown = QString("<b>") + _("Techs unkown by you") + sp
+ QString("</b> :");
advance_iterate(A_FIRST, padvance) {
tech_id = advance_number(padvance);
if (player_invention_state(me, tech_id) == TECH_KNOWN
&& (player_invention_state(pplayer, tech_id) == TECH_UNKNOWN)) {
a++;
techs_known = techs_known + QString("<i>")
+ advance_name_for_player(pplayer, tech_id)
+ "," + QString("</i>") + sp;
}
if (player_invention_state(me, tech_id) == TECH_UNKNOWN
&& (player_invention_state(pplayer, tech_id) == TECH_KNOWN)) {
b++;
techs_unknown = techs_unknown + QString("<i>")
+ advance_name_for_player(pplayer, tech_id)
+ "," + QString("</i>") + sp;
}
} advance_iterate_end;
