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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include <SDL_keycode.h>
#include "GroupHandler.h"
#include "Group.h"
#include "Game/SelectedUnitsHandler.h"
#include "Game/CameraHandler.h"
#include "Sim/Units/UnitHandler.h"
#include "System/creg/STL_Set.h"
#include "System/Log/ILog.h"
#include "System/Input/KeyInput.h"
#include "System/EventHandler.h"
std::vector<CGroupHandler*> grouphandlers;
CR_BIND(CGroupHandler, (0))
CR_REG_METADATA(CGroupHandler, (
CR_MEMBER(groups),
CR_MEMBER(team),
CR_MEMBER(freeGroups),
CR_MEMBER(firstUnusedGroup),
CR_MEMBER(changedGroups)
))
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CGroupHandler::CGroupHandler(int teamId)
: team(teamId)
, firstUnusedGroup(FIRST_SPECIAL_GROUP)
{
for (int g = 0; g < FIRST_SPECIAL_GROUP; ++g) {
groups.push_back(new CGroup(g, this));
}
}
CGroupHandler::~CGroupHandler()
{
for (int g = 0; g < firstUnusedGroup; ++g) {
delete groups[g];
}
}
void CGroupHandler::Update()
{
{
for (CGroup* g: groups) {
if (g != nullptr) {
// Update may invoke RemoveGroup, but this will only NULL the element, so there will be no iterator invalidation here
g->Update();
}
}
}
{
if (changedGroups.empty())
return;
std::vector<int> grpChg;
// swap containers to prevent recursion through lua
changedGroups.swap(grpChg);
for (int i: grpChg) {
eventHandler.GroupChanged(i);
}
}
}
bool CGroupHandler::GroupCommand(int num)
{
std::string cmd = "";
if (KeyInput::GetKeyModState(KMOD_CTRL)) {
if (!KeyInput::GetKeyModState(KMOD_SHIFT)) {
cmd = "set";
} else {
cmd = "add";
}
} else if (KeyInput::GetKeyModState(KMOD_SHIFT)) {
cmd = "selectadd";
} else if (KeyInput::GetKeyModState(KMOD_ALT)) {
cmd = "selecttoggle";
}
return GroupCommand(num, cmd);
}
bool CGroupHandler::GroupCommand(int num, const std::string& cmd)
{
CGroup* group = groups[num];
if ((cmd == "set") || (cmd == "add")) {
if (cmd == "set")
group->ClearUnits();
for (const int unitID: selectedUnitsHandler.selectedUnits) {
CUnit* u = unitHandler->GetUnit(unitID);
if (u == nullptr) {
assert(false);
continue;
}
// change group, but do not call SUH::AddUnit while iterating
u->SetGroup(group, false, false);
}
}
else if (cmd == "selectadd") {
// do not select the group, just add its members to the current selection
for (const int unitID: group->units) {
selectedUnitsHandler.AddUnit(unitHandler->GetUnit(unitID));
}
return true;
}
else if (cmd == "selectclear") {
// do not select the group, just remove its members from the current selection
for (const int unitID: group->units) {
selectedUnitsHandler.RemoveUnit(unitHandler->GetUnit(unitID));
}
return true;
}
else if (cmd == "selecttoggle") {
// do not select the group, just toggle its members with the current selection
const auto& selUnits = selectedUnitsHandler.selectedUnits;
for (const int unitID: group->units) {
CUnit* unit = unitHandler->GetUnit(unitID);
if (selUnits.find(unitID) == selUnits.end()) {
selectedUnitsHandler.AddUnit(unit);
} else {
selectedUnitsHandler.RemoveUnit(unit);
}
}
return true;
}
if (group->units.empty())
return false;
if (selectedUnitsHandler.IsGroupSelected(num)) {
const float3 groupCenter = group->CalculateCenter();
camHandler->CameraTransition(0.5f);
camHandler->GetCurrentController().SetPos(groupCenter);
}
selectedUnitsHandler.SelectGroup(num);
return true;
}
CGroup* CGroupHandler::CreateNewGroup()
{
if (freeGroups.empty()) {
CGroup* group = new CGroup(firstUnusedGroup++, this);
groups.push_back(group);
return group;
} else {
int id = freeGroups.back();
freeGroups.pop_back();
CGroup* group = new CGroup(id, this);
groups[id] = group;
return group;
}
}
void CGroupHandler::RemoveGroup(CGroup* group)
{
if (group->id < FIRST_SPECIAL_GROUP) {
LOG_L(L_WARNING, "Trying to remove hot-key group %i", group->id);
return;
}
if (selectedUnitsHandler.IsGroupSelected(group->id))
selectedUnitsHandler.ClearSelected();
groups[group->id] = NULL;
freeGroups.push_back(group->id);
delete group;
}
void CGroupHandler::PushGroupChange(int id)
{
spring::VectorInsertUnique(changedGroups, id, true);
}
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