2014-01-01 19:43:38 -08:00
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// Copyright © 2008-2014 Pioneer Developers. See AUTHORS.txt for details
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2012-09-15 17:59:15 -07:00
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// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
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2012-09-12 04:38:30 -07:00
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2014-11-22 07:55:55 -08:00
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#define ALLOW_LUA_SHIP_DEF 1
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2008-06-24 03:17:31 -07:00
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#include "ShipType.h"
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2014-11-22 07:55:55 -08:00
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#if ALLOW_LUA_SHIP_DEF
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2012-05-04 20:04:20 -07:00
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#include "LuaVector.h"
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2011-03-28 03:56:42 -07:00
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#include "LuaUtils.h"
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2013-04-15 11:35:34 -07:00
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#include "LuaTable.h"
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2012-10-02 15:34:08 -07:00
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#include "LuaConstants.h"
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2014-11-20 14:43:49 -08:00
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#endif
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2012-08-18 07:29:48 -07:00
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#include "FileSystem.h"
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2010-03-30 05:44:20 -07:00
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#include "utils.h"
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2011-07-27 03:46:56 -07:00
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#include "Lang.h"
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2014-11-20 14:43:49 -08:00
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#include "json/json.h"
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2013-07-07 14:12:28 -07:00
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#include <algorithm>
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2008-06-24 03:17:31 -07:00
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2011-03-13 15:55:32 -07:00
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2014-11-20 14:43:49 -08:00
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std::map<ShipType::Id, const ShipType> ShipType::types;
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2014-11-22 09:03:48 -08:00
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std::vector<ShipType::Id> ShipType::player_ships;
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std::vector<ShipType::Id> ShipType::static_ships;
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std::vector<ShipType::Id> ShipType::missile_ships;
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2011-03-13 15:55:32 -07:00
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2014-11-20 14:43:49 -08:00
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const std::string ShipType::POLICE = "kanara";
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const std::string ShipType::MISSILE_GUIDED = "missile_guided";
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const std::string ShipType::MISSILE_NAVAL = "missile_naval";
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const std::string ShipType::MISSILE_SMART = "missile_smart";
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const std::string ShipType::MISSILE_UNGUIDED = "missile_unguided";
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2010-03-30 05:44:20 -07:00
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2013-10-15 04:17:14 -07:00
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float ShipType::GetFuelUseRate() const
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{
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const float denominator = fuelTankMass * effectiveExhaustVelocity * 10;
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return denominator > 0 ? -linThrust[THRUSTER_FORWARD]/denominator : 1e9;
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}
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2012-11-05 08:57:01 -08:00
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// returns velocity of engine exhausts in m/s
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2013-01-15 11:28:27 -08:00
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static double GetEffectiveExhaustVelocity(double fuelTankMass, double thrusterFuelUse, double forwardThrust) {
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2013-01-06 06:25:59 -08:00
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double denominator = fuelTankMass * thrusterFuelUse * 10;
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2012-11-05 08:57:01 -08:00
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return fabs(denominator > 0 ? forwardThrust/denominator : 1e9);
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}
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2014-11-20 14:43:49 -08:00
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static bool ShipIsUnbuyable(const std::string &id)
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2013-07-07 14:12:28 -07:00
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{
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const ShipType &t = ShipType::types[id];
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2014-08-15 11:16:19 -07:00
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return is_zero_exact(t.baseprice);
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2013-07-07 14:12:28 -07:00
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}
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2014-11-20 14:43:49 -08:00
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ShipType::ShipType(const Id &_id, const std::string &path)
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{
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Json::Reader reader;
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Json::Value data;
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auto fd = FileSystem::gameDataFiles.ReadFile(path);
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if (!fd) {
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Output("couldn't open ship def '%s'\n", path.c_str());
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return;
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}
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if (!reader.parse(fd->GetData(), fd->GetData()+fd->GetSize(), data)) {
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Output("couldn't read ship def '%s': %s\n", path.c_str(), reader.getFormattedErrorMessages().c_str());
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return;
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}
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// determine what kind (tag) of ship this is.
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const std::string tagStr = data.get("tag", "").asString();
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if( tagStr.empty() || strcasecmp(tagStr.c_str(), "ship")==0 ) {
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tag = TAG_SHIP;
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} else if( strcasecmp(tagStr.c_str(), "static")==0 ) {
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tag = TAG_STATIC_SHIP;
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} else if( strcasecmp(tagStr.c_str(), "missile")==0 ) {
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tag = TAG_MISSILE;
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}
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id = _id;
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name = data.get("name", "").asString();
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shipClass = data.get("ship_class", "").asString();
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manufacturer = data.get("manufacturer", "").asString();
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modelName = data.get("model", "").asString();
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cockpitName = data.get("cockpit_model", "").asString();
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linThrust[THRUSTER_REVERSE] = data.get("reverse_thrust", 0.0f).asFloat();
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linThrust[THRUSTER_FORWARD] = data.get("forward_thrust", 0.0f).asFloat();
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linThrust[THRUSTER_UP] = data.get("up_thrust", 0.0f).asFloat();
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linThrust[THRUSTER_DOWN] = data.get("down_thrust", 0.0f).asFloat();
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linThrust[THRUSTER_LEFT] = data.get("left_thrust", 0.0f).asFloat();
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linThrust[THRUSTER_RIGHT] = data.get("right_thrust", 0.0f).asFloat();
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angThrust = data.get("angular_thrust", 0.0f).asFloat();
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// invert values where necessary
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linThrust[THRUSTER_FORWARD] *= -1.f;
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linThrust[THRUSTER_LEFT] *= -1.f;
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linThrust[THRUSTER_DOWN] *= -1.f;
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// angthrust fudge (XXX: why?)
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angThrust = angThrust * 0.5f;
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hullMass = data.get("hull_mass", 100).asInt();
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capacity = data.get("capacity", 0).asInt();
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fuelTankMass = data.get("fuel_tank_mass", 5).asInt();
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for( Json::Value::iterator slot = data["slots"].begin() ; slot != data["slots"].end() ; slot++ ) {
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const std::string slotname = slot.key().asString();
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slots[slotname] = data["slots"].get(slotname, 0).asInt();
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}
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{
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const auto it = slots.find("engine");
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if (it != slots.end())
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{
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it->second = Clamp(it->second, 0, 1);
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}
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}
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effectiveExhaustVelocity = data.get("effective_exhaust_velocity", -1.0f).asFloat();
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const float thruster_fuel_use = data.get("thruster_fuel_use", -1.0f).asFloat();
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if(effectiveExhaustVelocity < 0 && thruster_fuel_use < 0) {
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// default value of v_c is used
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effectiveExhaustVelocity = 55000000;
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} else if(effectiveExhaustVelocity < 0 && thruster_fuel_use >= 0) {
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// v_c undefined and thruster fuel use defined -- use it!
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effectiveExhaustVelocity = GetEffectiveExhaustVelocity(fuelTankMass, thruster_fuel_use, linThrust[ShipType::THRUSTER_FORWARD]);
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} else {
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if(thruster_fuel_use >= 0) {
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Output("Warning: Both thruster_fuel_use and effective_exhaust_velocity defined for %s, using effective_exhaust_velocity.\n", modelName.c_str());
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}
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}
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baseprice = data.get("price", 0.0).asDouble();
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minCrew = data.get("min_crew", 1).asInt();
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maxCrew = data.get("max_crew", 1).asInt();
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hyperdriveClass = data.get("hyperdrive_class", 1).asInt();
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}
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2012-08-18 07:29:48 -07:00
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2014-11-22 07:55:55 -08:00
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#if ALLOW_LUA_SHIP_DEF
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2014-11-20 14:43:49 -08:00
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static std::string s_currentShipFile;
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2014-11-22 09:03:48 -08:00
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int _define_ship(lua_State *L, ShipType::Tag tag, std::vector<ShipType::Id> *list)
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2012-02-29 06:21:37 -08:00
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{
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2012-08-18 07:29:48 -07:00
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if (s_currentShipFile.empty())
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return luaL_error(L, "ship file contains multiple ship definitions");
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2014-11-20 14:43:49 -08:00
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Json::Value data;
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2012-02-29 06:21:37 -08:00
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ShipType s;
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s.tag = tag;
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2012-10-30 21:26:42 -07:00
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s.id = s_currentShipFile;
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2012-02-29 06:21:37 -08:00
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LUA_DEBUG_START(L);
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2013-04-15 11:35:34 -07:00
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LuaTable t(L, -1);
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2013-09-17 04:28:13 -07:00
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2013-04-15 11:35:34 -07:00
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s.name = t.Get("name", "");
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2014-01-04 15:07:45 -08:00
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s.shipClass = t.Get("ship_class", "unknown");
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s.manufacturer = t.Get("manufacturer", "unknown");
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2013-04-15 11:35:34 -07:00
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s.modelName = t.Get("model", "");
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2013-09-20 00:31:02 -07:00
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2014-11-20 14:43:49 -08:00
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data["name"] = s.name;
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data["ship_class"] = s.shipClass;
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data["manufacturer"] = s.manufacturer;
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data["model"] = s.modelName;
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2013-12-14 15:12:18 -08:00
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s.cockpitName = t.Get("cockpit", "");
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2013-04-15 11:35:34 -07:00
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s.linThrust[ShipType::THRUSTER_REVERSE] = t.Get("reverse_thrust", 0.0f);
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s.linThrust[ShipType::THRUSTER_FORWARD] = t.Get("forward_thrust", 0.0f);
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s.linThrust[ShipType::THRUSTER_UP] = t.Get("up_thrust", 0.0f);
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s.linThrust[ShipType::THRUSTER_DOWN] = t.Get("down_thrust", 0.0f);
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s.linThrust[ShipType::THRUSTER_LEFT] = t.Get("left_thrust", 0.0f);
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s.linThrust[ShipType::THRUSTER_RIGHT] = t.Get("right_thrust", 0.0f);
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s.angThrust = t.Get("angular_thrust", 0.0f);
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2014-11-20 14:43:49 -08:00
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data["cockpit"] = s.cockpitName;
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data["reverse_thrust"] = s.linThrust[ShipType::THRUSTER_REVERSE];
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data["forward_thrust"] = s.linThrust[ShipType::THRUSTER_FORWARD];
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data["up_thrust"] = s.linThrust[ShipType::THRUSTER_UP];
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data["down_thrust"] = s.linThrust[ShipType::THRUSTER_DOWN];
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data["left_thrust"] = s.linThrust[ShipType::THRUSTER_LEFT];
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data["right_thrust"] = s.linThrust[ShipType::THRUSTER_RIGHT];
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data["angular_thrust"] = s.angThrust;
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2012-09-23 10:50:37 -07:00
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// invert values where necessary
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s.linThrust[ShipType::THRUSTER_FORWARD] *= -1.f;
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s.linThrust[ShipType::THRUSTER_LEFT] *= -1.f;
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s.linThrust[ShipType::THRUSTER_DOWN] *= -1.f;
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// angthrust fudge (XXX: why?)
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s.angThrust = s.angThrust / 2;
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2012-10-16 13:37:01 -07:00
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2013-04-15 11:35:34 -07:00
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s.capacity = t.Get("capacity", 0);
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s.hullMass = t.Get("hull_mass", 100);
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s.fuelTankMass = t.Get("fuel_tank_mass", 5);
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2012-11-05 08:57:01 -08:00
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2014-11-20 14:43:49 -08:00
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data["capacity"] = s.capacity;
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data["hull_mass"] = s.hullMass;
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data["fuel_tank_mass"] = s.fuelTankMass;
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2012-10-22 14:53:06 -07:00
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LuaTable slot_table = t.Sub("slots");
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if (slot_table.GetLua()) {
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s.slots = slot_table.GetMap<std::string, int>();
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}
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lua_pop(L, 1);
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2014-07-15 18:39:50 -07:00
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{
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const auto it = s.slots.find("engine");
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if (it != s.slots.end()) { it->second = Clamp(it->second, 0, 1); }
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}
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2014-11-20 14:43:49 -08:00
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for( auto slot : s.slots ) {
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data["slots"][slot.first] = slot.second;
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}
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2012-11-05 08:57:01 -08:00
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// fuel_use_rate can be given in two ways
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2013-01-06 06:25:59 -08:00
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float thruster_fuel_use = 0;
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2013-04-15 11:35:34 -07:00
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s.effectiveExhaustVelocity = t.Get("effective_exhaust_velocity", -1.0f);
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thruster_fuel_use = t.Get("thruster_fuel_use", -1.0f);
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2014-11-20 14:43:49 -08:00
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data["effective_exhaust_velocity"] = s.effectiveExhaustVelocity;
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data["thruster_fuel_use"] = thruster_fuel_use;
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2013-01-06 06:25:59 -08:00
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if(s.effectiveExhaustVelocity < 0 && thruster_fuel_use < 0) {
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2012-11-05 08:57:01 -08:00
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// default value of v_c is used
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2013-01-06 06:25:59 -08:00
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s.effectiveExhaustVelocity = 55000000;
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} else if(s.effectiveExhaustVelocity < 0 && thruster_fuel_use >= 0) {
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2012-11-05 08:57:01 -08:00
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// v_c undefined and thruster fuel use defined -- use it!
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2013-01-06 06:25:59 -08:00
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s.effectiveExhaustVelocity = GetEffectiveExhaustVelocity(s.fuelTankMass, thruster_fuel_use, s.linThrust[ShipType::THRUSTER_FORWARD]);
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2012-11-05 08:57:01 -08:00
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} else {
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2013-01-06 06:25:59 -08:00
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if(thruster_fuel_use >= 0)
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2014-01-28 01:40:09 -08:00
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Output("Warning: Both thruster_fuel_use and effective_exhaust_velocity defined for %s, using effective_exhaust_velocity.\n", s.modelName.c_str());
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2012-11-05 08:57:01 -08:00
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}
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2014-08-15 11:16:19 -07:00
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s.baseprice = t.Get("price", 0.0);
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2012-02-29 06:21:37 -08:00
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2013-04-15 11:35:34 -07:00
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s.minCrew = t.Get("min_crew", 1);
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s.maxCrew = t.Get("max_crew", 1);
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2012-12-29 16:05:39 -08:00
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2014-04-11 09:46:49 -07:00
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s.hyperdriveClass = t.Get("hyperdrive_class", 1);
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2014-11-20 14:43:49 -08:00
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data["price"] = s.baseprice;
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data["min_crew"] = s.minCrew;
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data["max_crew"] = s.maxCrew;
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data["hyperdrive_class"] = s.hyperdriveClass;
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Json::StyledWriter writer;
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const std::string saveMe = writer.write( data );
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2014-11-22 07:55:55 -08:00
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const std::string path("ships/" + s_currentShipFile + ".json");
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2014-11-20 14:43:49 -08:00
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FileSystem::FileSourceFS newFS(FileSystem::GetDataDir());
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FILE *f = newFS.OpenWriteStream(path);
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if (!f) {
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Output("couldn't open file for writing '%s'\n", path.c_str());
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abort();
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2013-09-17 04:23:00 -07:00
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}
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2014-11-20 14:43:49 -08:00
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const size_t nwritten = fwrite(saveMe.data(), saveMe.length(), 1, f);
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fclose(f);
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2013-09-17 04:23:00 -07:00
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2012-02-29 06:21:37 -08:00
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lua_pop(L, 1);
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LUA_DEBUG_END(L, 0);
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2012-03-05 07:25:03 -08:00
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//sanity check
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if (s.name.empty())
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return luaL_error(L, "Ship has no name");
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2013-02-02 07:31:00 -08:00
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if (s.modelName.empty())
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2012-03-05 07:25:03 -08:00
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return luaL_error(L, "Missing model name in ship");
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2012-12-29 16:05:39 -08:00
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if (s.minCrew < 1 || s.maxCrew < 1 || s.minCrew > s.maxCrew)
|
|
|
|
return luaL_error(L, "Invalid values for min_crew and max_crew");
|
|
|
|
|
2012-08-18 07:29:48 -07:00
|
|
|
const std::string& id = s_currentShipFile;
|
2014-11-20 14:43:49 -08:00
|
|
|
typedef std::map<std::string, const ShipType>::iterator iter;
|
2012-08-18 07:29:48 -07:00
|
|
|
std::pair<iter, bool> result = ShipType::types.insert(std::make_pair(id, s));
|
|
|
|
if (result.second)
|
2014-11-22 09:03:48 -08:00
|
|
|
list->push_back(s_currentShipFile);
|
2012-08-18 07:29:48 -07:00
|
|
|
else
|
|
|
|
return luaL_error(L, "Ship '%s' was already defined by a different file", id.c_str());
|
|
|
|
s_currentShipFile.clear();
|
|
|
|
|
2012-02-29 06:21:37 -08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int define_ship(lua_State *L)
|
|
|
|
{
|
2014-11-22 09:03:48 -08:00
|
|
|
return _define_ship(L, ShipType::TAG_SHIP, &ShipType::player_ships);
|
2012-02-29 06:21:37 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
int define_static_ship(lua_State *L)
|
|
|
|
{
|
2014-11-22 09:03:48 -08:00
|
|
|
return _define_ship(L, ShipType::TAG_STATIC_SHIP, &ShipType::static_ships);
|
2012-02-29 06:21:37 -08:00
|
|
|
}
|
|
|
|
|
|
|
|
int define_missile(lua_State *L)
|
|
|
|
{
|
2014-11-22 09:03:48 -08:00
|
|
|
return _define_ship(L, ShipType::TAG_MISSILE, &ShipType::missile_ships);
|
2012-02-29 06:21:37 -08:00
|
|
|
}
|
2014-11-20 14:43:49 -08:00
|
|
|
#endif
|
2012-02-29 06:21:37 -08:00
|
|
|
|
2011-03-13 15:55:32 -07:00
|
|
|
void ShipType::Init()
|
|
|
|
{
|
|
|
|
static bool isInitted = false;
|
2014-11-20 14:43:49 -08:00
|
|
|
if (isInitted)
|
|
|
|
return;
|
2011-03-13 15:55:32 -07:00
|
|
|
isInitted = true;
|
|
|
|
|
2014-11-22 07:55:55 -08:00
|
|
|
// load all ship definitions
|
|
|
|
namespace fs = FileSystem;
|
|
|
|
for (fs::FileEnumerator files(fs::gameDataFiles, "ships", fs::FileEnumerator::Recurse); !files.Finished(); files.Next()) {
|
|
|
|
const fs::FileInfo &info = files.Current();
|
|
|
|
if (ends_with_ci(info.GetPath(), ".json")) {
|
|
|
|
const std::string id(info.GetName().substr(0, info.GetName().size()-5));
|
|
|
|
ShipType st = ShipType(id, info.GetPath());
|
|
|
|
types.insert(std::make_pair(st.id, st));
|
|
|
|
|
|
|
|
// assign the names to the various lists
|
|
|
|
switch( st.tag ) {
|
|
|
|
case TAG_SHIP: player_ships.push_back(id); break;
|
|
|
|
case TAG_STATIC_SHIP: static_ships.push_back(id); break;
|
|
|
|
case TAG_MISSILE: missile_ships.push_back(id); break;
|
|
|
|
break;
|
|
|
|
case TAG_NONE:
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#if ALLOW_LUA_SHIP_DEF
|
2012-05-04 20:04:20 -07:00
|
|
|
lua_State *l = luaL_newstate();
|
2012-02-29 06:21:37 -08:00
|
|
|
|
|
|
|
LUA_DEBUG_START(l);
|
|
|
|
|
2012-05-06 14:42:43 -07:00
|
|
|
luaL_requiref(l, "_G", &luaopen_base, 1);
|
|
|
|
luaL_requiref(l, LUA_DBLIBNAME, &luaopen_debug, 1);
|
|
|
|
luaL_requiref(l, LUA_MATHLIBNAME, &luaopen_math, 1);
|
|
|
|
lua_pop(l, 3);
|
2012-05-04 20:04:20 -07:00
|
|
|
|
2012-10-02 15:34:08 -07:00
|
|
|
LuaConstants::Register(l);
|
2012-05-04 20:04:20 -07:00
|
|
|
LuaVector::Register(l);
|
2012-05-05 08:58:48 -07:00
|
|
|
LUA_DEBUG_CHECK(l, 0);
|
|
|
|
|
2012-05-05 10:55:06 -07:00
|
|
|
// provide shortcut vector constructor: v = vector.new
|
|
|
|
lua_getglobal(l, LuaVector::LibName);
|
|
|
|
lua_getfield(l, -1, "new");
|
2012-05-04 20:04:20 -07:00
|
|
|
assert(lua_iscfunction(l, -1));
|
|
|
|
lua_setglobal(l, "v");
|
2012-05-05 10:55:06 -07:00
|
|
|
lua_pop(l, 1); // pop the vector library table
|
2012-05-04 20:04:20 -07:00
|
|
|
|
|
|
|
LUA_DEBUG_CHECK(l, 0);
|
|
|
|
|
|
|
|
// register ship definition functions
|
2012-02-29 06:21:37 -08:00
|
|
|
lua_register(l, "define_ship", define_ship);
|
|
|
|
lua_register(l, "define_static_ship", define_static_ship);
|
|
|
|
lua_register(l, "define_missile", define_missile);
|
|
|
|
|
2012-05-04 20:04:20 -07:00
|
|
|
LUA_DEBUG_CHECK(l, 0);
|
|
|
|
|
|
|
|
// load all ship definitions
|
2012-08-18 07:29:48 -07:00
|
|
|
namespace fs = FileSystem;
|
2014-11-22 07:55:55 -08:00
|
|
|
for (fs::FileEnumerator files(fs::gameDataFiles, "ships", fs::FileEnumerator::Recurse); !files.Finished(); files.Next()) {
|
2012-08-18 07:29:48 -07:00
|
|
|
const fs::FileInfo &info = files.Current();
|
2013-12-05 13:18:31 -08:00
|
|
|
if (ends_with_ci(info.GetPath(), ".lua")) {
|
2012-08-18 07:29:48 -07:00
|
|
|
const std::string name = info.GetName();
|
2014-11-22 07:55:55 -08:00
|
|
|
s_currentShipFile = name.substr(0, name.size() - 4);
|
|
|
|
if (ShipType::types.find(s_currentShipFile) == ShipType::types.end())
|
|
|
|
{
|
|
|
|
pi_lua_dofile(l, info.GetPath());
|
|
|
|
s_currentShipFile.clear();
|
|
|
|
}
|
2012-08-18 07:29:48 -07:00
|
|
|
}
|
|
|
|
}
|
2012-02-29 06:21:37 -08:00
|
|
|
|
|
|
|
LUA_DEBUG_END(l, 0);
|
|
|
|
|
|
|
|
lua_close(l);
|
2014-11-20 14:43:49 -08:00
|
|
|
#endif
|
|
|
|
|
2013-07-07 14:12:28 -07:00
|
|
|
//remove unbuyable ships from player ship list
|
|
|
|
ShipType::player_ships.erase(
|
|
|
|
std::remove_if(ShipType::player_ships.begin(), ShipType::player_ships.end(), ShipIsUnbuyable),
|
|
|
|
ShipType::player_ships.end());
|
|
|
|
|
2012-03-06 12:00:01 -08:00
|
|
|
if (ShipType::player_ships.empty())
|
2012-05-26 16:30:55 -07:00
|
|
|
Error("No playable ships have been defined! The game cannot run.");
|
2010-03-30 05:44:20 -07:00
|
|
|
}
|
|
|
|
|