Merge pull request #150 from DanielProl1xy/spawn_objects

Spawning objects within the level

src/files/WorldFiles.cpp

@@ -559,11 +559,11 @@ bool WorldFiles::readWorldInfo(World* world) {
 	return true;
 }
 
-void WorldFiles::writePlayer(Player* player) {
+void WorldFiles::writePlayer(std::shared_ptr<Player> player) {
 	files::write_json(getPlayerFile(), player->serialize().release());
 }
 
-bool WorldFiles::readPlayer(Player* player) {
+bool WorldFiles::readPlayer(std::shared_ptr<Player> player) {
 	fs::path file = getPlayerFile();
 	if (!fs::is_regular_file(file)) {
 		std::cerr << "warning: player.json does not exists" << std::endl;

src/files/WorldFiles.h

@@ -143,13 +143,13 @@ public:
 	chunk_inventories_map fetchInventories(int x, int z);
 
 	bool readWorldInfo(World* world);
-	bool readPlayer(Player* player);
+	bool readPlayer(std::shared_ptr<Player> player);
 
 	void writeRegion(int x, int y, 
 					 WorldRegion* entry, 
 					 fs::path file,
                      int layer);
-	void writePlayer(Player* player);
+	void writePlayer(std::shared_ptr<Player> player);
     /* @param world world info to save (nullable) */
 	void write(const World* world, const Content* content);
 	void writePacks(const World* world);

src/frontend/hud.cpp

@@ -645,6 +645,6 @@ void Hud::setPause(bool pause) {
     menu->setVisible(pause);
 }
 
-Player* Hud::getPlayer() const {
+std::shared_ptr<Player> Hud::getPlayer() const {
     return frontend->getLevel()->player;
 }

src/frontend/hud.h

@@ -118,7 +118,7 @@ public:
 	void remove(HudElement& element);
     void remove(std::shared_ptr<gui::UINode> node);
 
-    Player* getPlayer() const;
+    std::shared_ptr<Player> getPlayer() const;
 };
 
 #endif /* SRC_HUD_H_ */

src/interfaces/Object.h

@@ -0,0 +1,25 @@
+#ifndef OBJECT_H
+#define OBJECT_H
+
+#include "stdlib.h"
+#include <iostream>
+
+class Level;
+
+class Object {
+private:
+
+public:
+    uint64_t objectUID;    
+    bool shouldUpdate = true;
+
+public:
+    ~Object() { destroyed(); }
+
+public:
+    virtual void spawned() {  }
+    virtual void update(float delta) { }
+    virtual void destroyed() {  }
+};
+
+#endif /* OBJECT_H */

src/interfaces/Serializable.h

@@ -4,12 +4,11 @@
 #include <memory>
 #include "../coders/json.h"
 
-class Serializable
-{
+class Serializable {
 public:
     virtual ~Serializable() { }
     virtual std::unique_ptr<dynamic::Map>  serialize() const = 0;
     virtual void deserialize(dynamic::Map* src) = 0;
 };
 
-#endif
+#endif /* SERIALIZABLE_H */

src/items/Inventory.h

@@ -13,7 +13,7 @@
 class ContentLUT;
 class ContentIndices;
 
-class Inventory : Serializable {
+class Inventory : public Serializable {
     int64_t id;
     std::vector<ItemStack> slots;
 public:

src/logic/LevelController.cpp

@@ -6,6 +6,7 @@
 #include "ChunksController.h"
 
 #include "scripting/scripting.h"
+#include "../interfaces/Object.h"
 
 LevelController::LevelController(EngineSettings& settings, Level* level) 
     : settings(settings), level(level) {
@@ -23,7 +24,20 @@ void LevelController::update(float delta, bool input, bool pause) {
     player->update(delta, input, pause);
     level->update();
     chunks->update(settings.chunks.loadSpeed);
+
+    // erease null pointers
+    level->objects.remove_if([](auto obj) { return obj == nullptr; });
+    
     if (!pause) {
+        // update all objects that needed
+        for(auto obj : level->objects)
+        {
+            if(obj) {
+                if(obj->shouldUpdate) {
+                    obj->update(delta);
+                }
+            }
+        }
         blocks->update(delta);
     }
 }

src/logic/PlayerController.cpp

@@ -31,7 +31,7 @@ const float C_ZOOM = 0.1f;
 const float CROUCH_SHIFT_Y = -0.2f;
 
 
-CameraControl::CameraControl(Player* player, const CameraSettings& settings) 
+CameraControl::CameraControl(std::shared_ptr<Player> player, const CameraSettings& settings) 
 	: player(player), 
 	  camera(player->camera), 
 	  currentViewCamera(player->currentCamera),
@@ -202,13 +202,13 @@ void PlayerController::resetKeyboard() {
 }
 
 void PlayerController::updateControls(float delta){
-	player->update(level, input, delta);
+	player->updateInput(level, input, delta);
 }
 
 void PlayerController::updateInteraction(){
 	auto indices = level->content->getIndices();
 	Chunks* chunks = level->chunks;
-	Player* player = level->player;
+	Player* player = level->player.get();
 	Lighting* lighting = level->lighting;
 	Camera* camera = player->camera.get();
 	glm::vec3 end;

src/logic/PlayerController.h

@@ -12,7 +12,7 @@ class Level;
 class BlocksController;
 
 class CameraControl {
-	Player* player;
+	std::shared_ptr<Player> player;
 	std::shared_ptr<Camera> camera, currentViewCamera;
 	const CameraSettings& settings;
 	glm::vec3 offset;
@@ -20,7 +20,7 @@ class CameraControl {
 	float shakeTimer = 0.0f;
 	glm::vec3 interpVel {0.0f};
 public:
-	CameraControl(Player* player, const CameraSettings& settings);
+	CameraControl(std::shared_ptr<Player> player, const CameraSettings& settings);
 	void updateMouse(PlayerInput& input);
 	void update(PlayerInput& input, float delta, Chunks* chunks);
 	void refresh();
@@ -28,7 +28,7 @@ public:
 
 class PlayerController {
 	Level* level;
-	Player* player;
+	std::shared_ptr<Player> player;
 	PlayerInput input;
 	CameraControl camControl;
     BlocksController* blocksController;

src/objects/Player.cpp

@@ -33,7 +33,7 @@ Player::Player(glm::vec3 position, float speed, std::shared_ptr<Inventory> inv)
 Player::~Player() {
 }
 
-void Player::update(
+void Player::updateInput(
 		Level* level,
 		PlayerInput& input, 
 		float delta) {

src/objects/Player.h

@@ -8,6 +8,7 @@
 #include "../voxels/voxel.h"
 #include "../settings.h"
 #include "../interfaces/Serializable.h"
+#include "../interfaces/Object.h"
 
 class Camera;
 class Hitbox;
@@ -32,7 +33,7 @@ struct PlayerInput {
     bool flight;
 };
 
-class Player : Serializable {
+class Player : public Object, public Serializable {
     float speed;
     int chosenSlot;
     glm::vec3 spawnpoint {};
@@ -52,7 +53,7 @@ public:
     ~Player();
 
     void teleport(glm::vec3 position);
-    void update(Level* level, PlayerInput& input, float delta);
+    void updateInput(Level* level, PlayerInput& input, float delta);
 
     void attemptToFindSpawnpoint(Level* level);
 

src/world/Level.cpp

@@ -8,19 +8,27 @@
 #include "../voxels/ChunksStorage.h"
 #include "../physics/Hitbox.h"
 #include "../physics/PhysicsSolver.h"
+#include "../interfaces/Object.h"
 #include "../objects/Player.h"
 #include "../items/Inventory.h"
 #include "../items/Inventories.h"
 
-Level::Level(World* world, const Content* content, Player* player, EngineSettings& settings)
+
+const float DEF_PLAYER_Y = 100.0f;
+const float DEF_PLAYER_SPEED = 4.0f;
+const int DEF_PLAYER_INVENTORY_SIZE = 40;
+
+Level::Level(World* world, const Content* content, EngineSettings& settings)
 	  : world(world),
 	    content(content),
-		player(player),
 		chunksStorage(new ChunksStorage(this)),
 		events(new LevelEvents()) ,
 		settings(settings) 
 {
+	objCounter = 0;
     physics = new PhysicsSolver(glm::vec3(0, -22.6f, 0));
+	auto inv = std::make_shared<Inventory>(world->getNextInventoryId(), DEF_PLAYER_INVENTORY_SIZE);
+	player = spawnObject<Player>(glm::vec3(0, DEF_PLAYER_Y, 0), DEF_PLAYER_SPEED, inv);
 
     uint matrixSize = (settings.chunks.loadDistance+
 					   settings.chunks.padding) * 2;
@@ -33,15 +41,20 @@ Level::Level(World* world, const Content* content, Player* player, EngineSetting
 	});
 
 	inventories = std::make_unique<Inventories>(*this);
+	inventories->store(player->getInventory());
 }
 
 Level::~Level(){
 	delete chunks;
 	delete events;
 	delete physics;
-	delete player;
 	delete lighting;
 	delete chunksStorage;
+
+	for(auto obj : objects)
+	{
+		obj.reset();
+	}
 }
 
 void Level::update() {
@@ -58,3 +71,18 @@ void Level::update() {
 World* Level::getWorld() {
     return world.get();
 }
+
+
+template<class T, typename... Args>
+std::shared_ptr<T> Level::spawnObject(Args&&... args)
+{
+	static_assert(std::is_base_of<Object, T>::value, "T must be a derived of Object class");
+	std::shared_ptr<T> tObj = std::make_shared<T>(args...);
+	
+	std::shared_ptr<Object> obj = std::dynamic_pointer_cast<Object, T>(tObj);
+	objects.push_back(obj);
+	obj->objectUID = objCounter;
+	obj->spawned();
+	objCounter += 1;
+	return tObj;
+}

src/world/Level.h

@@ -5,10 +5,14 @@
 
 #include "../typedefs.h"
 #include "../settings.h"
+#include <list>
+#include <vector>
+#include <chrono>
 
 class Content;
 class World;
 class Player;
+class Object;
 class Chunks;
 class Inventory;
 class Inventories;
@@ -18,10 +22,13 @@ class PhysicsSolver;
 class ChunksStorage;
 
 class Level {
+private:
+	int objCounter;
 public:
 	std::unique_ptr<World> world;
 	const Content* const content;
-	Player* player;
+	std::list<std::shared_ptr<Object>> objects;
+	std::shared_ptr<Player> player;
 	Chunks* chunks;
 	ChunksStorage* chunksStorage;
 	std::unique_ptr<Inventories> inventories;
@@ -34,13 +41,18 @@ public:
 
 	Level(World* world, 
 		  const Content* content,
-	      Player* player, 
 	      EngineSettings& settings);
 	~Level();
 
 	void update();
     
     World* getWorld();
+
+	// Spawns object of class T and returns pointer to it.
+	// @param T class that derives the Object class
+	// @param args pass arguments needed for T class constructor
+	template<class T, typename... Args>
+	std::shared_ptr<T> spawnObject(Args&&... args);
 };
 
 #endif /* WORLD_LEVEL_H_ */

src/world/World.cpp

@@ -64,10 +64,6 @@ void World::write(Level* level) {
     wfile->writePlayer(level->player);
 }
 
-const float DEF_PLAYER_Y = 100.0f;
-const float DEF_PLAYER_SPEED = 4.0f;
-const int DEF_PLAYER_INVENTORY_SIZE = 40;
-
 Level* World::create(std::string name, 
                      fs::path directory, 
                      uint64_t seed,
@@ -75,12 +71,7 @@ Level* World::create(std::string name,
                      const Content* content,
                      const std::vector<ContentPack>& packs) {
     auto world = new World(name, directory, seed, settings, content, packs);
-    auto inv = std::make_shared<Inventory>(world->getNextInventoryId(), DEF_PLAYER_INVENTORY_SIZE);
-    auto player = new Player(
-        glm::vec3(0, DEF_PLAYER_Y, 0), DEF_PLAYER_SPEED, inv
-    );
-    auto level = new Level(world, content, player, settings);
-    level->inventories->store(player->getInventory());
+    auto level = new Level(world, content, settings);
     return level;
 }
 
@@ -97,13 +88,8 @@ Level* World::load(fs::path directory,
         throw world_load_error("could not to find world.json");
     }
 
-    auto inv = std::make_shared<Inventory>(0, DEF_PLAYER_INVENTORY_SIZE);
-    auto player = new Player(
-        glm::vec3(0, DEF_PLAYER_Y, 0), DEF_PLAYER_SPEED, inv
-    );
-    auto level = new Level(world.get(), content, player, settings);
-    wfile->readPlayer(player);
-    level->inventories->store(player->getInventory());
+    auto level = new Level(world.get(), content, settings);
+    wfile->readPlayer(level->player);
     world.release();
     return level;
 }

src/world/World.h

@@ -26,7 +26,7 @@ public:
     world_load_error(std::string message);
 };
 
-class World : Serializable {
+class World : public Serializable {
     std::string name;
     uint64_t seed;
     EngineSettings& settings;