generate dungeon kinda works

5 files changed, 135 insertions, 28 deletions

diff --git a/frontend/DB.cpp b/frontend/DB.cpp
index d4527b8..d51315b 100644
--- a/frontend/DB.cpp
+++ b/frontend/DB.cpp
@@ -75,7 +75,6 @@ DBQueryRow DBStatement::row() {
 
 DBQueryRow::DBQueryRow(DBStatement & parent) : parent(parent) { }
 
-
 template <>
 const char * DBQueryRow::col<const char*>(int index, const char * const & default_value) {
 	int type = sqlite3_column_type(this->parent.stmt.get(), index);
@@ -98,3 +97,39 @@ int DBQueryRow::col<int>(int index) {
 	return this->col<int>(index, 0);
 }
 
+DBQueryRowRange DBStatement::rows() {
+	return { *this };
+}
+
+DBQueryRowRange::DBQueryRowIterator & DBQueryRowRange::DBQueryRowIterator::operator ++ () {
+	int ret = sqlite3_step(this->parent.parent.stmt.get());
+	if (ret == SQLITE_DONE) {
+		this->end = true;
+		return *this;
+	}
+	if (ret != SQLITE_ROW)
+		throw Exception("sqlite3_step: %d", ret);
+	return *this;
+}
+
+bool DBQueryRowRange::DBQueryRowIterator::operator != (const DBQueryRowIterator &) const {
+	return !this->end;
+}
+
+DBQueryRow & DBQueryRowRange::DBQueryRowIterator::operator * () const {
+	return this->parent.row;
+}
+
+DBQueryRowRange::DBQueryRowIterator DBQueryRowRange::begin() {
+	DBQueryRowRange::DBQueryRowIterator it = { *this };
+	return ++it;
+}
+
+DBQueryRowRange::DBQueryRowIterator DBQueryRowRange::end() {
+	return { *this };
+}
+
+DBQueryRowRange::DBQueryRowRange(DBStatement & parent) : parent(parent), row(parent) { }
+
+DBQueryRowRange::DBQueryRowIterator::DBQueryRowIterator(DBQueryRowRange & parent) : parent(parent) { }
+
diff --git a/frontend/DB.h b/frontend/DB.h
index f6907bc..0164e34 100644
--- a/frontend/DB.h
+++ b/frontend/DB.h
@@ -21,34 +21,37 @@ private:
 	DBStatement & parent;
 };
 
-// class DBQueryRowRange {
-// public:
-// 	DBQueryRowRange();
-// 
-// private:
-// 	class DBQueryRowIterator {
-// 	public:
-// 		DBQueryRowIterator(DBQueryRow & row);
-// 
-// 	public:
-// 		DBQueryRow & operator * () const;
-// 		DBQueryRowIterator & operator ++ ();
-// 		bool operator != (const DBQueryRowIterator &) const;
-// 
-// 	private:
-// 		DBQueryRow & row;
-// 	};
-// 
-// public:
-// 	DBQueryRowIterator begin() const;
-// 	DBQueryRowIterator end() const;
-// 
-// private:
-// 	DBQueryRow row;
-// };
+class DBQueryRowRange {
+public:
+	DBQueryRowRange(DBStatement & stmt);
+
+private:
+	class DBQueryRowIterator {
+	public:
+		DBQueryRowIterator(DBQueryRowRange & parent);
+
+	public:
+		DBQueryRow & operator * () const;
+		DBQueryRowIterator & operator ++ ();
+		bool operator != (const DBQueryRowIterator &) const;
+
+	private:
+		bool end = false;
+		DBQueryRowRange & parent;
+	};
+
+public:
+	DBQueryRowIterator begin();
+	DBQueryRowIterator end();
+
+private:
+	DBStatement & parent;
+	DBQueryRow row;
+};
 
 class DBStatement {
 	friend class DBQueryRow;
+	friend class DBQueryRowRange;
 
 public:
 	DBStatement(DB &, const std::string & query);
@@ -60,7 +63,7 @@ public:
 public:
 	void execute();
 	DBQueryRow row();
-	// DBQueryRowRange rows();
+	DBQueryRowRange rows();
 
 private:
 	std::unique_ptr<sqlite3_stmt, std::function<void(sqlite3_stmt*)>> stmt;
diff --git a/frontend/GameData.cpp b/frontend/GameData.cpp
index c8f47e3..edcd854 100644
--- a/frontend/GameData.cpp
+++ b/frontend/GameData.cpp
@@ -3,6 +3,7 @@
 
 #include "backend/Enemy.h"
 #include "backend/EnemyFactory.h"
+#include "backend/LocationFactory.h"
 #include "backend/Object.h"
 #include "backend/ObjectFactory.h"
 
@@ -21,6 +22,7 @@ GameData::GameData() {
 
 Enemy * GameData::create_enemy(const string & name) {
 	Enemy * enemy = EnemyFactory::create_enemy();
+	// TODO: fill fields
 	return enemy;
 }
 
@@ -66,6 +68,27 @@ Object * GameData::create_object(const string & name) {
 	}
 }
 
+Location * GameData::create_location(const string & name) {
+	static DBStatement query = this->db->prepare(R"(
+		select
+			naam,
+			beschrijving
+		from Locaties
+		where lower(naam) = lower(?)
+		limit 1
+	)");
+	query.reset()
+		.bind(name)
+	;
+	
+	try {
+		auto row = query.row();
+		return LocationFactory::create_location(row.col<const char *>(0), row.col<const char *>(1));
+	} catch (...) {
+		return LocationFactory::create_location(name.c_str(), "");
+	}
+}
+
 void GameData::leaderbord_add(const string & name, unsigned int gold) {
 	static DBStatement stmt = this->db->prepare(R"(
 		insert into Leaderboard (naam, goudstukken)
@@ -78,3 +101,21 @@ void GameData::leaderbord_add(const string & name, unsigned int gold) {
 	stmt.execute();
 }
 
+vector<string> GameData::random_locations(unsigned count) {
+	static DBStatement query = this->db->prepare(R"(
+		select naam
+		from Locaties
+		order by random()
+		limit ?
+	)");
+	query.reset()
+		.bind(count)
+	;
+
+	vector<string> names = {};
+	for (DBQueryRow & row : query.rows()) {
+		names.push_back(row.col<const char *>(0));
+	}
+	return names;
+}
+
diff --git a/frontend/GameData.h b/frontend/GameData.h
index 383de00..81e16c1 100644
--- a/frontend/GameData.h
+++ b/frontend/GameData.h
@@ -6,6 +6,7 @@
 
 class Enemy;
 class Object;
+class Location;
 
 class GameData {
 public:
@@ -14,7 +15,11 @@ public:
 public:
 	Enemy * create_enemy(const std::string & name);
 	Object * create_object(const std::string & name);
+	Location * create_location(const std::string & name);
+
+public:
 	void leaderbord_add(const std::string & name, unsigned int gold);
+	std::vector<std::string> random_locations(unsigned count = 1);
 
 private:
 	GameData();
diff --git a/frontend/generate_dungeon.cpp b/frontend/generate_dungeon.cpp
index e2a7c74..80eb0cb 100644
--- a/frontend/generate_dungeon.cpp
+++ b/frontend/generate_dungeon.cpp
@@ -2,16 +2,39 @@
 
 #include "backend/Dungeon.h"
 
+#include "rl.h"
+#include "print.h"
 #include "generate_dungeon.h"
 #include "GameData.h"
+#include "Exception.h"
 
 using namespace std;
 
 unique_ptr<Dungeon> generate_dungeon() {
 	unique_ptr<Dungeon> dungeon = make_unique<Dungeon>();
-
 	GameData & gd = GameData::get_instance();
 
+	lprtf("Hoeveel locaties moet de kerker hebben?\n");
+	unsigned location_count = 1;
+	try {
+		string filename = rl();
+		location_count = stoul(filename);
+	} catch (...) {
+		throw Exception("Geen geldig aantal ingevoerd");
+	}
+	if (location_count < 1)
+		throw Exception("Meer dan 1 locatie nodig");
+
+	vector<string> locations = gd.random_locations(location_count);
+	for (const string & name : locations) {
+		Location * location = gd.create_location(name);
+		dungeon->add_location(location);
+	}
+
+	// TODO: connect locations
+	// TODO: optionally add enemy
+	// TODO: generate items
+
 	return dungeon;
 }