Kayne Ruse
cac273da5e
I've also fixed some other issues along the way. However, the next step requires support for multiple rooms. Finally.
322 lines
11 KiB
C++
322 lines
11 KiB
C++
/* Copyright: (c) Kayne Ruse 2014
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#include "character_manager.hpp"
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#include "sqlite3/sqlite3.h"
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#include <stdexcept>
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//-------------------------
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//Define the queries
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//-------------------------
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static const char* CREATE_CHARACTER = "INSERT INTO Characters (owner, handle, avatar) VALUES (?, ?, ?);";
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static const char* LOAD_CHARACTER = "SELECT * FROM Characters WHERE handle = ?;";
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static const char* SAVE_CHARACTER = "UPDATE OR FAIL Characters SET "
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"mapIndex = ?2,"
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"originX = ?3,"
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"originY = ?4,"
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"level = ?5,"
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"exp = ?6,"
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"maxHP = ?7,"
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"health = ?8,"
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"maxMP = ?9,"
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"mana = ?10,"
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"attack = ?11,"
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"defence = ?12,"
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"intelligence = ?13,"
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"resistance = ?14,"
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"speed = ?15,"
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"accuracy = ?16,"
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"evasion = ?17,"
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"luck = ?18"
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" WHERE uid = ?1;";
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static const char* DELETE_CHARACTER = "DELETE FROM Characters WHERE uid = ?;";
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//-------------------------
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//Define the methods
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//-------------------------
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CharacterManager::CharacterManager() {
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//
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}
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CharacterManager::~CharacterManager() {
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for (auto& it : characterMap) {
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SaveCharacter(it.first);
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}
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}
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//TODO: should statistics be stored separately?
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//TODO: default stats as a parameter? This would be good for differing beggining states or multiple classes
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int CharacterManager::CreateCharacter(int owner, std::string handle, std::string avatar) {
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//Create the character, failing if it exists
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sqlite3_stmt* statement = nullptr;
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//prep
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if (sqlite3_prepare_v2(database, CREATE_CHARACTER, -1, &statement, nullptr) != SQLITE_OK) {
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throw( std::runtime_error(std::string() + "Failed to prepare an SQL statement: " + sqlite3_errmsg(database)) );
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}
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//parameters
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bool ret = false;
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ret |= sqlite3_bind_int(statement, 1, owner);
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ret |= sqlite3_bind_text(statement, 2, handle.c_str(), handle.size() + 1, SQLITE_STATIC);
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ret |= sqlite3_bind_text(statement, 3, avatar.c_str(), avatar.size() + 1, SQLITE_STATIC);
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//check for binding errors
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if (ret) {
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throw( std::runtime_error(std::string() + "Failed to replace a prepared statement's parameter: " + sqlite3_errmsg(database)) );
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}
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//execute
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if (sqlite3_step(statement) != SQLITE_DONE) {
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//if this fails, than this character exists
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sqlite3_finalize(statement);
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return -1;
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}
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sqlite3_finalize(statement);
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//load this character into memory
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return LoadCharacter(owner, handle, avatar);
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}
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int CharacterManager::LoadCharacter(int owner, std::string handle, std::string avatar) {
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//load the specified character, creating it if it doesn't exist
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//fail if it is already loaded, or does not belong to this account
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sqlite3_stmt* statement = nullptr;
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//prep
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if (sqlite3_prepare_v2(database, LOAD_CHARACTER, -1, &statement, nullptr) != SQLITE_OK) {
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throw( std::runtime_error(std::string() + "Failed to prepare an SQL statement: " + sqlite3_errmsg(database)) );
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}
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//parameter
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if (sqlite3_bind_text(statement, 1, handle.c_str(), handle.size() + 1, SQLITE_STATIC) != SQLITE_OK) {
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throw( std::runtime_error(std::string() + "Failed to replace a prepared statement's parameter: " + sqlite3_errmsg(database)) );
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}
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//execute
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int ret = sqlite3_step(statement);
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//process the result
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if (ret == SQLITE_ROW) {
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//get the index
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int uid = sqlite3_column_int(statement, 0);
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//check to see if this character is already loaded
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if (characterMap.find(uid) != characterMap.end()) {
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sqlite3_finalize(statement);
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return -1;
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}
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//check the owner
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if (owner != sqlite3_column_int(statement, 1)) {
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sqlite3_finalize(statement);
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return -2;
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}
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//extract the data into memory
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CharacterData& newChar = characterMap[uid];
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//metadata
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newChar.owner = owner;
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newChar.handle = reinterpret_cast<const char*>(sqlite3_column_text(statement, 2));
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newChar.avatar = reinterpret_cast<const char*>(sqlite3_column_text(statement, 3));
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//Don't cache the birth
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//world origin
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newChar.mapIndex = sqlite3_column_int(statement, 5);
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newChar.origin.x = (double)sqlite3_column_int(statement, 6);
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newChar.origin.y = (double)sqlite3_column_int(statement, 7);
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//statistics
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newChar.stats.level = sqlite3_column_int(statement, 8);
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newChar.stats.exp = sqlite3_column_int(statement, 9);
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newChar.stats.maxHP = sqlite3_column_int(statement, 10);
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newChar.stats.health = sqlite3_column_int(statement, 11);
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newChar.stats.maxMP = sqlite3_column_int(statement, 12);
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newChar.stats.mana = sqlite3_column_int(statement, 13);
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newChar.stats.attack = sqlite3_column_int(statement, 14);
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newChar.stats.defence = sqlite3_column_int(statement, 15);
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newChar.stats.intelligence = sqlite3_column_int(statement, 16);
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newChar.stats.resistance = sqlite3_column_int(statement, 17);
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newChar.stats.speed = sqlite3_column_int(statement, 18);
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newChar.stats.accuracy = sqlite3_column_double(statement, 19);
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newChar.stats.evasion = sqlite3_column_double(statement, 20);
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newChar.stats.luck = sqlite3_column_double(statement, 21);
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//TODO: equipment
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//TODO: items
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//TODO: buffs
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//TODO: debuffs
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//finish the routine
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sqlite3_finalize(statement);
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return uid;
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}
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sqlite3_finalize(statement);
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if (ret == SQLITE_DONE) {
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//create the non-existant character instead
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return CreateCharacter(owner, handle, avatar);
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}
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throw(std::runtime_error(std::string() + "Unknown SQL error in LoadCharacter: " + sqlite3_errmsg(database) ));
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}
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int CharacterManager::SaveCharacter(int uid) {
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//save this character from memory, replacing it if it exists in the database
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//DOCS: To use this method, change the in-memory copy, and then call this function using that object's UID.
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//this method fails if this character is not loaded
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if (characterMap.find(uid) == characterMap.end()) {
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return -1;
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}
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CharacterData& character = characterMap[uid];
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sqlite3_stmt* statement = nullptr;
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//prep
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if (sqlite3_prepare_v2(database, SAVE_CHARACTER, -1, &statement, nullptr) != SQLITE_OK) {
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throw( std::runtime_error(std::string() + "Failed to prepare an SQL statement: " + sqlite3_errmsg(database)) );
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}
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//parameters
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bool ret = false;
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ret |= sqlite3_bind_int(statement, 1, uid) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 2, character.mapIndex) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 3, (int)character.origin.x) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 4, (int)character.origin.y) != SQLITE_OK;
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//statistics
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ret |= sqlite3_bind_int(statement, 5, character.stats.level) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 6, character.stats.exp) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 7, character.stats.maxHP) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 8, character.stats.health) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 9, character.stats.maxMP) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 10, character.stats.mana) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 11, character.stats.attack) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 12, character.stats.defence) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 13, character.stats.intelligence) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 14, character.stats.resistance) != SQLITE_OK;
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ret |= sqlite3_bind_int(statement, 15, character.stats.speed) != SQLITE_OK;
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ret |= sqlite3_bind_double(statement, 16, character.stats.accuracy) != SQLITE_OK;
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ret |= sqlite3_bind_double(statement, 17, character.stats.evasion) != SQLITE_OK;
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ret |= sqlite3_bind_double(statement, 18, character.stats.luck) != SQLITE_OK;
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//TODO: equipment
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//TODO: items
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//TODO: buffs
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//TODO: debuffs
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//check for binding errors
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if (ret) {
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throw( std::runtime_error(std::string() + "Failed to replace a prepared statement's parameter: " + sqlite3_errmsg(database)) );
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}
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//execute
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if (sqlite3_step(statement) != SQLITE_DONE) {
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//if this fails, than something went horribly wrong
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sqlite3_finalize(statement);
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throw( std::runtime_error(std::string() + "Unknown SQL error when saving an account: " + sqlite3_errmsg(database)) );
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}
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sqlite3_finalize(statement);
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//successful execution
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return 0;
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}
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void CharacterManager::UnloadCharacter(int uid) {
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//save this character, then unload it
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SaveCharacter(uid);
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characterMap.erase(uid);
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}
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void CharacterManager::DeleteCharacter(int uid) {
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//delete this character from the database, then remove it from memory
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sqlite3_stmt* statement = nullptr;
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//prep
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if (sqlite3_prepare_v2(database, DELETE_CHARACTER, -1, &statement, nullptr) != SQLITE_OK) {
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throw( std::runtime_error(std::string() + "Failed to prepare an SQL statement: " + sqlite3_errmsg(database)) );
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}
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//parameter
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if (sqlite3_bind_int(statement, 1, uid) != SQLITE_OK) {
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throw( std::runtime_error(std::string() + "Failed to replace a prepared statement's parameter: " + sqlite3_errmsg(database)) );
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}
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//execute
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if (sqlite3_step(statement) != SQLITE_DONE) {
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//if this fails, than something went horribly wrong
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sqlite3_finalize(statement);
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throw( std::runtime_error(std::string() + "Unknown SQL error when deleting an account: " + sqlite3_errmsg(database)) );
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}
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//finish the routine
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sqlite3_finalize(statement);
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characterMap.erase(uid);
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}
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void CharacterManager::UnloadCharacterIf(std::function<bool(std::map<int, CharacterData>::iterator)> f) {
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//save this character, then unload it if the parameter returns true
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for (std::map<int, CharacterData>::iterator it = characterMap.begin(); it != characterMap.end(); /* EMPTY */ ) {
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if (f(it)) {
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SaveCharacter(it->first);
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it = characterMap.erase(it);
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continue;
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}
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it++;
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}
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}
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//-------------------------
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//Define the accessors and mutators
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//-------------------------
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CharacterData* CharacterManager::GetCharacter(int uid) {
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std::map<int, CharacterData>::iterator it = characterMap.find(uid);
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if (it == characterMap.end()) {
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return nullptr;
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}
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return &it->second;
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}
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std::map<int, CharacterData>* CharacterManager::GetContainer() {
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return &characterMap;
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}
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sqlite3* CharacterManager::SetDatabase(sqlite3* db) {
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return database = db;
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}
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sqlite3* CharacterManager::GetDatabase() {
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return database;
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} |