MerchantData MerchantLoader::loadMerchant(const std::string& merchantID) const
{
lua_State* L = luaL_newstate();
luaL_openlibs(L);
MerchantData merchantData;
std::string filename = MERCHANT_FOLDER + "ME_" + merchantID + ".lua";
if (luaL_dofile(L, filename.c_str()) != 0)
{
g_logger->logError("MerchantLoader", "Cannot read lua script: " + filename);
return merchantData;
}
lua_pcall(L, 0, 0, 0);
LuaRef multiplier = getGlobal(L, "multiplier");
if (multiplier.isNumber())
{
float mult = multiplier.cast<float>();
if (mult < 1.f)
{
g_logger->logWarning("MerchantLoader", "Merchant multiplier is smaller than 1, this is not allowed, the default (1.5f) is taken instead.");
}
else
{
merchantData.multiplier = mult;
}
}
LuaRef fraction = getGlobal(L, "fraction");
if (fraction.isString())
{
merchantData.fraction = resolveFractionID(fraction.cast<std::string>());
}
LuaRef wares = getGlobal(L, "wares");
if (wares.isTable())
{
int i = 1; // in lua, the first element is 1, not 0. Like Eiffel haha.
LuaRef element = wares[i];
while (!element.isNil())
{
LuaRef name = element[1];
LuaRef amount = element[2];
if (!name.isString() || !amount.isNumber())
{
g_logger->logError("MerchantLoader", "File [" + filename + "]: wares table not resolved, no name or amount or of wrong type.");
return merchantData;
}
merchantData.wares.insert({ name.cast<std::string>(), amount.cast<int>() });
i++;
element = wares[i];
}
}
return merchantData;
}
QuestData QuestLoader::loadQuest(const std::string& questID) const
{
lua_State* L = luaL_newstate();
luaL_openlibs(L);
QuestData questData;
questData.id = "";
std::string filename = QUEST_FOLDER + questID + ".lua";
if (luaL_dofile(L, filename.c_str()) != 0)
{
g_logger->logError("QuestLoader", "Cannot read lua script: " + filename);
return questData;
}
lua_pcall(L, 0, 0, 0);
LuaRef title = getGlobal(L, "title");
LuaRef description = getGlobal(L, "description");
if (!title.isString() || !description.isString())
{
g_logger->logError("QuestLoader", "Quest [" + filename + "] has no title or description tag or of wrong type.");
return questData;
}
questData.title = title.cast<std::string>();
questData.description = description.cast<std::string>();
LuaRef targets = getGlobal(L, "targets");
if (targets.isTable())
{
int i = 1; // in lua, the first element is 1, not 0. Like Eiffel haha.
LuaRef element = targets[i];
while (!element.isNil())
{
LuaRef name = element[1];
LuaRef amount = element[2];
if (!name.isString() || !amount.isNumber())
{
g_logger->logError("QuestLoader", "Quest [" + filename + "]: target table not resolved, no name or amount or of wrong type.");
return questData;
}
questData.targets.insert({name.cast<std::string>(), amount.cast<int>()});
i++;
element = targets[i];
}
}
LuaRef collectibles = getGlobal(L, "collectibles");
if (collectibles.isTable())
{
int i = 1;
LuaRef element = collectibles[i];
while (!element.isNil())
{
LuaRef id = element[1];
LuaRef amount = element[2];
if (!id.isString() || !amount.isNumber())
{
g_logger->logError("QuestLoader", "Quest [" + filename + "]: collectibles table not resolved, no id or amount or of wrong type.");
return questData;
}
questData.collectibles.insert({ id.cast<std::string>(), amount.cast<int>() });
i++;
element = collectibles[i];
}
}
LuaRef conditions = getGlobal(L, "conditions");
if (conditions.isTable())
{
int i = 1;
LuaRef element = conditions[i];
while (element.isString())
{
questData.conditions.insert(element.cast<std::string>());
i++;
element = targets[i];
}
}
questData.id = questID;
return questData;
}
CutsceneData CutsceneLoader::loadCutscene(const std::string& cutsceneID) {
lua_State* L = luaL_newstate();
luaL_openlibs(L);
CutsceneData cutsceneData;
cutsceneData.id = "";
std::string foldername = CUTSCENE_FOLDER + cutsceneID + "/";
std::string filename = foldername + cutsceneID + ".lua";
if (luaL_dofile(L, filename.c_str()) != 0) {
g_logger->logError("CutsceneLoader", "Cannot read lua script: " + filename);
return cutsceneData;
}
lua_pcall(L, 0, 0, 0);
LuaRef steps = getGlobal(L, "steps");
if (steps.isTable()) {
int i = 1; // in lua, the first element is 1, not 0. Like Eiffel haha.
LuaRef step = steps[i];
while (!step.isNil()) {
LuaRef texts = step[1];
LuaRef images = step[2];
if (!texts.isTable() || !images.isTable()) {
g_logger->logError("CutsceneLoader", "Cutscene [" + filename + "]: step table not resolved, there must be one table for texts and one for images.");
return cutsceneData;
}
CutsceneStep cutsceneStep;
// resolve texts
int j = 1;
LuaRef text = texts[j];
while (!text.isNil()) {
LuaRef textString = text[1];
LuaRef textTime = text[2];
if (!textString.isString() || !textTime.isNumber()) {
g_logger->logError("CutsceneLoader", "Cutscene [" + filename + "]: text table not resolved, text string must be of type string and text time of type number.");
return cutsceneData;
}
CutsceneText cutsceneText;
cutsceneText.text = textString.cast<std::string>();
cutsceneText.time = sf::seconds(static_cast<float>(textTime.cast<int>()));
cutsceneStep.texts.push_back(cutsceneText);
j++;
text = texts[j];
}
// resolve images
j = 1;
LuaRef image = images[j];
while (!image.isNil()) {
LuaRef imagePath = image[1];
LuaRef velocity = image[2];
LuaRef angle = image[3];
if (!imagePath.isString() || !velocity.isNumber() || !angle.isNumber()) {
g_logger->logError("CutsceneLoader", "Cutscene [" + filename + "]: image table not resolved, image path must be of type string and velocity and angle of type number.");
return cutsceneData;
}
float phi = degToRad(static_cast<float>(angle.cast<int>() - 90));
float speed = static_cast<float>(velocity.cast<int>());
CutsceneImage cutsceneImage;
cutsceneImage.imagePath = foldername + imagePath.cast<std::string>();
cutsceneImage.velocity.x = std::round(speed * std::cos(phi));
cutsceneImage.velocity.y = std::round(speed * std::sin(phi));
cutsceneStep.images.push_back(cutsceneImage);
j++;
image = images[j];
}
cutsceneData.steps.push_back(cutsceneStep);
i++;
step = steps[i];
}
}
cutsceneData.id = cutsceneID;
return cutsceneData;
}