Begin tracking/storing/displaying scores

src/include/ripscreen.h

@@ -2,11 +2,19 @@
 #include "uistate.h"
 #include "playerchar.h"
 #include "../libtcod/include/libtcod.hpp"
+#include <vector>
+#include <string>
+#include <sstream>
+
+struct ScoreItem;
 
 class RIPScreen : public UIState {
 	public:
 		RIPScreen(PlayerChar*);
 		virtual void draw(TCODConsole*);
+		virtual UIState* handleInput(TCOD_key_t);
 	private:
 		PlayerChar* player;
+		std::vector<ScoreItem> scores;
+		const std::string SCORE_FILE = "scores.txt";
 };

src/ripscreen.cpp

@@ -2,11 +2,96 @@
 #include "include/playerchar.h"
 #include "libtcod/include/libtcod.hpp"
 #include <string>
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include <exception>
+
+struct ScoreItem {
+	ScoreItem(int gold, int depth, std::string name, std::string death)
+		: gold(gold)
+		, depth(depth)
+		, name(name)
+		, death(death)
+	{}
+	int gold, depth;
+	std::string name, death;
+	static const char DELIM = ',';
+	static ScoreItem decode(std::string line) {
+		std::stringstream ss(line);
+		std::string temp;
+		if (!readItem(ss, temp))
+			throw std::invalid_argument("bad format");
+		int gold = std::stoi(temp);
+		if (!readItem(ss, temp))
+			throw std::invalid_argument("bad format");
+		int depth = std::stoi(temp);
+		if (!readItem(ss, temp))
+			throw std::invalid_argument("bad format");
+		std::string name = temp;	
+		if (!readItem(ss, temp))
+			throw std::invalid_argument("bad format");
+		std::string death = temp;
+		return ScoreItem(gold, depth, name, death);
+	}
+
+	std::string encode() {
+		return std::to_string(gold) + DELIM
+			+  std::to_string(depth) + DELIM
+			+  name + DELIM + death;
+	}
+	
+	static bool readItem(std::stringstream& ss, std::string& str) {
+		if (!std::getline(ss, str, DELIM)) {
+			std::cerr << "error parsing score file\n";
+			return false;
+		}
+		return true;
+	}
+};
+
 
 RIPScreen::RIPScreen(PlayerChar* player)
 	: player(player)
-{}
+{
+	std::ifstream scoreFile(SCORE_FILE);
+	std::string line;
+	if (scoreFile.is_open()) {
+		while (std::getline(scoreFile, line)) {
+			try {
+				scores.push_back(ScoreItem::decode(line));
+			} catch (std::string param) {
+				std::cerr << param << " while reading " << SCORE_FILE << "\n";
+			}
+		}
+		scoreFile.close();
+	} else {
+		std::cerr << "could not open " << SCORE_FILE << "\n";
+	}
+	scores.push_back(ScoreItem(player->getGold(), -1, player->getName(), "unknown"));
+	// create if not exist, otherwise append
+	std::ofstream outStream(SCORE_FILE, std::ios::app | std::ios::out);
+	if (outStream.is_open()) {
+		outStream << scores.back().encode() << "\n";
+	}
+	outStream.close();
+}
 
 void RIPScreen::draw(TCODConsole* con) {
+	int i = 0;
+	for (ScoreItem item : scores) {
+		con->print(0, i, (std::to_string(item.gold) + ":" + item.name + " " + item.death 
+					+ " on level " + std::to_string(item.depth)).c_str());
+		i++;
+	}
 	con->print(10, 10, std::string("rip").c_str());
 }
+
+UIState* RIPScreen::handleInput(TCOD_key_t key) {
+	if (key.vk == TCODK_ESCAPE) {
+		delete player;
+		player = NULL;
+		return NULL;
+	}
+	return this;
+}