C++ SystemPath::HasValidSystem方法代码示例

static float distance_to_system(const SystemPath &dest)
{
	SystemPath here = Pi::game->GetSpace()->GetStarSystem()->GetPath();
	assert(here.HasValidSystem());
	assert(dest.HasValidSystem());

	Sector sec1(here.sectorX, here.sectorY, here.sectorZ);
	Sector sec2(dest.sectorX, dest.sectorY, dest.sectorZ);

	return Sector::DistanceBetween(&sec1, here.systemIndex, &sec2, dest.systemIndex);
}

/*
 * Method: IsSameSystem
 *
 * Determine if two <SystemPath> objects point to objects in the same system.
 *
 * > is_same = path:IsSameSystem(otherpath)
 *
 * Parameters:
 *
 *   otherpath - the <SystemPath> to compare with this path
 *
 * Return:
 *
 *   is_same - true if the path's point to the same system, false otherwise
 *
 * Availability:
 *
 *   alpha 10
 *
 * Status:
 *
 *   stable
 */
static int l_sbodypath_is_same_system(lua_State *l)
{
	SystemPath *a = LuaObject<SystemPath>::CheckFromLua(1);
	SystemPath *b = LuaObject<SystemPath>::CheckFromLua(2);

	if (!a->HasValidSystem())
		return luaL_error(l, "SystemPath:IsSameSystem() self argument does not refer to a system");
	if (!b->HasValidSystem())
		return luaL_error(l, "SystemPath:IsSameSystem() argument #1 does not refer to a system");

	lua_pushboolean(l, a->IsSameSystem(b));
	return 1;
}

/*
 * Attribute: systemIndex
 *
 * The system index component of the path, or nil if the SystemPath does
 * not point to a system.
 *
 * Availability:
 *
 *   alpha 10
 *
 * Status:
 *
 *   stable
 */
static int l_sbodypath_attr_system_index(lua_State *l)
{
	SystemPath *path = LuaObject<SystemPath>::CheckFromLua(1);
	if (path->HasValidSystem())
		lua_pushinteger(l, path->systemIndex);
	else
		lua_pushnil(l);
	return 1;
}

/*
 * Method: SystemOnly
 *
 * Derive a SystemPath that points to the whole system.
 *
 * > system_path = path:SystemOnly()
 *
 * Return:
 *
 *   system_path - the SystemPath that represents just the system
 *
 * Availability:
 *
 *   alpha 17
 *
 * Status:
 *
 *   stable
 */
static int l_sbodypath_system_only(lua_State *l)
{
	SystemPath *path = LuaObject<SystemPath>::CheckFromLua(1);
	if (!path->HasValidSystem())
		return luaL_error(l, "SystemPath:SystemOnly() self argument does not refer to a system");
	if (path->IsSystemPath()) { return 1; }
	const SystemPath sysOnly(path->SystemOnly());
	LuaObject<SystemPath>::PushToLua(sysOnly);
	return 1;
}

Ship::HyperjumpStatus Ship::CheckHyperspaceTo(const SystemPath &dest, int &outFuelRequired, double &outDurationSecs)
{
	assert(dest.HasValidSystem());

	outFuelRequired = 0;
	outDurationSecs = 0.0;

	if (GetFlightState() != FLYING)
		return HYPERJUMP_SAFETY_LOCKOUT;

	return GetHyperspaceDetails(dest, outFuelRequired, outDurationSecs);
}

Ship::HyperjumpStatus Ship::InitiateHyperjumpTo(const SystemPath &dest, int warmup_time, double duration, LuaRef checks) {
	if (!dest.HasValidSystem() || GetFlightState() != FLYING || warmup_time < 1)
		return HYPERJUMP_SAFETY_LOCKOUT;
	StarSystem *s = Pi::game->GetSpace()->GetStarSystem().Get();
	if (s && s->GetPath().IsSameSystem(dest))
		return HYPERJUMP_CURRENT_SYSTEM;

	m_hyperspace.dest = dest;
	m_hyperspace.countdown = warmup_time;
	m_hyperspace.now = false;
	m_hyperspace.duration = duration;
	m_hyperspace.checks = checks;

	return Ship::HYPERJUMP_OK;
}

Ship::HyperjumpStatus Ship::GetHyperspaceDetails(const SystemPath &dest, int &outFuelRequired, double &outDurationSecs)
{
	assert(dest.HasValidSystem());

	outFuelRequired = 0;
	outDurationSecs = 0.0;

	UpdateStats();

	if (GetFlightState() == HYPERSPACE)
		return HYPERJUMP_DRIVE_ACTIVE;

	Equip::Type t = m_equipment.Get(Equip::SLOT_ENGINE);
	Equip::Type fuelType = GetHyperdriveFuelType();
	int hyperclass = Equip::types[t].pval;
	int fuel = m_equipment.Count(Equip::SLOT_CARGO, fuelType);
	if (hyperclass == 0)
		return HYPERJUMP_NO_DRIVE;

	StarSystem *s = Pi::game->GetSpace()->GetStarSystem().Get();
	if (s && s->GetPath().IsSameSystem(dest))
		return HYPERJUMP_CURRENT_SYSTEM;

	float dist = distance_to_system(dest);

	outFuelRequired = Pi::CalcHyperspaceFuelOut(hyperclass, dist, m_stats.hyperspace_range_max);
	double m_totalmass = GetMass()/1000;
	if (dist > m_stats.hyperspace_range_max) {
		outFuelRequired = 0;
		return HYPERJUMP_OUT_OF_RANGE;
	} else if (fuel < outFuelRequired) {
		return HYPERJUMP_INSUFFICIENT_FUEL;
	} else {
		outDurationSecs = Pi::CalcHyperspaceDuration(hyperclass, m_totalmass, dist);

		if (outFuelRequired <= fuel) {
			return HYPERJUMP_OK;
		} else {
			return HYPERJUMP_INSUFFICIENT_FUEL;
		}
	}
}

void SystemInfoView::SystemChanged(const SystemPath &path)
{
	DeleteAllChildren();
	m_tabs = 0;
	m_bodyIcons.clear();

	if (!path.HasValidSystem())
		return;

	m_system = StarSystemCache::GetCached(path);

	m_sbodyInfoTab = new Gui::Fixed(float(Gui::Screen::GetWidth()), float(Gui::Screen::GetHeight()-100));

	if (m_system->GetUnexplored()) {
		Add(m_sbodyInfoTab, 0, 0);

		std::string _info =
			Lang::UNEXPLORED_SYSTEM_STAR_INFO_ONLY;

		Gui::Label *l = (new Gui::Label(_info))->Color(255,255,0);
		m_sbodyInfoTab->Add(l, 35, 300);
		m_selectedBodyPath = SystemPath();

		ShowAll();
		return;
	}

	m_econInfoTab = new Gui::Fixed(float(Gui::Screen::GetWidth()), float(Gui::Screen::GetHeight()-100));
	Gui::Fixed *demographicsTab = new Gui::Fixed();

	m_tabs = new Gui::Tabbed();
	m_tabs->AddPage(new Gui::Label(Lang::PLANETARY_INFO), m_sbodyInfoTab);
	m_tabs->AddPage(new Gui::Label(Lang::ECONOMIC_INFO), m_econInfoTab);
	m_tabs->AddPage(new Gui::Label(Lang::DEMOGRAPHICS), demographicsTab);
	Add(m_tabs, 0, 0);

	m_sbodyInfoTab->onMouseButtonEvent.connect(sigc::mem_fun(this, &SystemInfoView::OnClickBackground));

	int majorBodies, starports, onSurface;
	{
		float pos[2] = { 0, 0 };
		float psize = -1;
		majorBodies = starports = onSurface = 0;
		PutBodies(m_system->GetRootBody().Get(), m_econInfoTab, 1, pos, majorBodies, starports, onSurface, psize);

		majorBodies = starports = onSurface = 0;
		pos[0] = pos[1] = 0;
		psize = -1;
		PutBodies(m_system->GetRootBody().Get(), m_sbodyInfoTab, 1, pos, majorBodies, starports, onSurface, psize);

		majorBodies = starports = onSurface = 0;
		pos[0] = pos[1] = 0;
		psize = -1;
		PutBodies(m_system->GetRootBody().Get(), demographicsTab, 1, pos, majorBodies, starports, onSurface, psize);
	}

	std::string _info = stringf(
		Lang::STABLE_SYSTEM_WITH_N_MAJOR_BODIES_STARPORTS,
		formatarg("bodycount", majorBodies),
		formatarg("body(s)", std::string(majorBodies == 1 ? Lang::BODY : Lang::BODIES)),
		formatarg("portcount", starports),
		formatarg("starport(s)", std::string(starports == 1 ? Lang::STARPORT : Lang::COUNT_STARPORTS)));
	if (starports > 0)
		_info += stringf(Lang::COUNT_ON_SURFACE, formatarg("surfacecount", onSurface));
	_info += ".\n\n";
	_info += m_system->GetLongDescription();

	{
		// astronomical body info tab
		m_infoBox = new Gui::VBox();

		Gui::HBox *scrollBox = new Gui::HBox();
		scrollBox->SetSpacing(5);
		m_sbodyInfoTab->Add(scrollBox, 35, 250);

		Gui::VScrollBar *scroll = new Gui::VScrollBar();
		Gui::VScrollPortal *portal = new Gui::VScrollPortal(730);
		scroll->SetAdjustment(&portal->vscrollAdjust);

		Gui::Label *l = (new Gui::Label(_info))->Color(255,255,0);
		m_infoBox->PackStart(l);
		portal->Add(m_infoBox);
		scrollBox->PackStart(scroll);
		scrollBox->PackStart(portal);
	}

	{
		// economy tab
		Gui::HBox *scrollBox2 = new Gui::HBox();
		scrollBox2->SetSpacing(5);
		m_econInfoTab->Add(scrollBox2, 35, 300);
		Gui::VScrollBar *scroll2 = new Gui::VScrollBar();
		Gui::VScrollPortal *portal2 = new Gui::VScrollPortal(730);
		scroll2->SetAdjustment(&portal2->vscrollAdjust);
		scrollBox2->PackStart(scroll2);
		scrollBox2->PackStart(portal2);

		m_econInfo = new Gui::Label("");
		m_econInfoTab->Add(m_econInfo, 35, 250);

//.........这里部分代码省略.........

void SystemInfoView::SystemChanged(const SystemPath &path)
{
	DeleteAllChildren();
	m_tabs = 0;
	m_bodyIcons.clear();

	if (!path.HasValidSystem())
		return;

	m_system = StarSystem::cache->GetCached(path);

	m_sbodyInfoTab = new Gui::Fixed(float(Gui::Screen::GetWidth()), float(Gui::Screen::GetHeight()-100));

	if (m_system->GetUnexplored()) {
		Add(m_sbodyInfoTab, 0, 0);

		std::string _info =
			Lang::UNEXPLORED_SYSTEM_STAR_INFO_ONLY;

		Gui::Label *l = (new Gui::Label(_info))->Color(255,255,0);
		m_sbodyInfoTab->Add(l, 35, 300);
		m_selectedBodyPath = SystemPath();

		ShowAll();
		return;
	}

	Gui::Fixed *demographicsTab = new Gui::Fixed();

	m_tabs = new Gui::Tabbed();
	m_tabs->AddPage(new Gui::Label(Lang::PLANETARY_INFO), m_sbodyInfoTab);
	m_tabs->AddPage(new Gui::Label(Lang::DEMOGRAPHICS), demographicsTab);
	Add(m_tabs, 0, 0);

	m_sbodyInfoTab->onMouseButtonEvent.connect(sigc::mem_fun(this, &SystemInfoView::OnClickBackground));

	int majorBodies, starports, onSurface;
	{
		float pos[2] = { 0, 0 };
		float psize = -1;

		majorBodies = starports = onSurface = 0;
		pos[0] = pos[1] = 0;
		psize = -1;
		PutBodies(m_system->GetRootBody().Get(), m_sbodyInfoTab, 1, pos, majorBodies, starports, onSurface, psize);

		majorBodies = starports = onSurface = 0;
		pos[0] = pos[1] = 0;
		psize = -1;
		PutBodies(m_system->GetRootBody().Get(), demographicsTab, 1, pos, majorBodies, starports, onSurface, psize);
	}

	std::string _info = stringf(
		Lang::STABLE_SYSTEM_WITH_N_MAJOR_BODIES_STARPORTS,
		formatarg("bodycount", majorBodies),
		formatarg("body(s)", std::string(majorBodies == 1 ? Lang::BODY : Lang::BODIES)),
		formatarg("portcount", starports),
		formatarg("starport(s)", std::string(starports == 1 ? Lang::STARPORT : Lang::COUNT_STARPORTS)));
	if (starports > 0)
		_info += stringf(Lang::COUNT_ON_SURFACE, formatarg("surfacecount", onSurface));
	_info += ".\n\n";
	_info += m_system->GetLongDescription();

	{
		// astronomical body info tab
		m_infoBox = new Gui::VBox();

		Gui::HBox *scrollBox = new Gui::HBox();
		scrollBox->SetSpacing(5);
		m_sbodyInfoTab->Add(scrollBox, 35, 250);

		Gui::VScrollBar *scroll = new Gui::VScrollBar();
		Gui::VScrollPortal *portal = new Gui::VScrollPortal(730);
		scroll->SetAdjustment(&portal->vscrollAdjust);

		Gui::Label *l = (new Gui::Label(_info))->Color(255,255,0);
		m_infoBox->PackStart(l);
		portal->Add(m_infoBox);
		scrollBox->PackStart(scroll);
		scrollBox->PackStart(portal);
	}

	{
		Gui::Fixed *col1 = new Gui::Fixed();
		demographicsTab->Add(col1, 200, 300);
		Gui::Fixed *col2 = new Gui::Fixed();
		demographicsTab->Add(col2, 400, 300);

		const float YSEP = Gui::Screen::GetFontHeight() * 1.2f;

		col1->Add((new Gui::Label(Lang::SYSTEM_TYPE))->Color(255,255,0), 0, 0);

		col1->Add((new Gui::Label(Lang::SECTOR_COORDINATES))->Color(255,255,0), 0, 6*YSEP);
		col2->Add(new Gui::Label(stringf("%0{d}, %1{d}, %2{d}", path.sectorX, path.sectorY, path.sectorZ)), 0, 6*YSEP);

		col1->Add((new Gui::Label(Lang::SYSTEM_NUMBER))->Color(255,255,0), 0, 7*YSEP);
		col2->Add(new Gui::Label(stringf("%0", path.systemIndex)), 0, 7*YSEP);
	}

	UpdateIconSelections();
//.........这里部分代码省略.........