Merge branch 'powerups'

include/AnimationHandler.h

@@ -1,5 +1,5 @@
 #pragma once
-#include <stdint.h>
+#include <cstdint>
 struct Animation
 {
 	uint8_t index;

include/AssetManager.h

@@ -1,13 +1,21 @@
-#include "Entity.h"
-
+#pragma once
 #include <SDL_render.h>
 #include <SDL_mixer.h>
 #include <map>
 #include <string>
 
+#include "Entity.h"
+
 class Vector2D;
 class Manager;
 
+enum class PowerupType
+{
+    HEART,
+    WALKINGSPEED,
+    SHOOTINGSPEED
+};
+
 class AssetManager
 {
 public:
@@ -16,6 +24,10 @@ public:
     ~AssetManager();
 
     void createProjectile(Vector2D pos, Vector2D velocity, int scale, int range, int speed, const char* texturePath, TeamLabel teamLabel);
+    void createPowerup(Vector2D pos, PowerupType type);
+
+    Vector2D calculateSpawnPosition();
+    PowerupType calculateType();
 
     //texture management
     void addTexture(std::string id, const char* path);

include/Constants.h

@@ -9,7 +9,8 @@ constexpr int CHARACTER_COUNT = 4;
 
 constexpr std::size_t MAX_COMPONENTS = 32;
 constexpr std::size_t MAX_GROUPS = 32;
-constexpr std::size_t MAX_TEAMS = 8; // 
+constexpr std::size_t MAX_STATS = 8;
+constexpr std::size_t MAX_TEAMS = 8;
 
 constexpr int SCREEN_SIZE_HEIGHT = 640;
 constexpr int SCREEN_SIZE_WIDTH = 800;
@@ -20,3 +21,10 @@ constexpr int TILE_SIZE = 32;
 
 constexpr int MAP_SIZE_X = 25;
 constexpr int MAP_SIZE_Y = 20;
+
+constexpr int SPAWN_ATTEMPTS = 20;
+
+constexpr int BUFF_DURATION = 6000;
+
+constexpr int BUFF_VALUE = 1;
+

include/Entity.h

@@ -23,7 +23,8 @@ enum class GroupLabel
 	ENEMIES,
 	COLLIDERS,
     PROJECTILE,
-    HEARTS
+    HEARTS,
+    POWERUPS
 };
 
 enum class TeamLabel

include/KeyboardController.h

@@ -3,6 +3,7 @@
 
 #include "Component.h"
 #include "Vector2D.h"
+#include "Constants.h"
 #include "SoundManager.h"
 
 class TransformComponent;
@@ -23,7 +24,7 @@ public:
 
 	//for attack cooldown in between shots
 	uint32_t lastFireTime = 0;
-	uint32_t fireCooldown = 800; //in ms can be adjusted to change possible attack-speed
+	uint32_t fireCooldown = 1000; //in ms can be adjusted to change possible attack-speed
 	
 	KeyboardController() = default;
 	KeyboardController(SDL_Scancode up, SDL_Scancode down, SDL_Scancode left, SDL_Scancode right, SDL_Scancode fire, Vector2D fireVelocity);
@@ -32,6 +33,8 @@ public:
 	void init() override;
 	void update() override;
 
+	void modifyAtkSpeed(int8_t modifier);
+
 private:
 	//for creation of projectiles
 	TransformComponent* player; //for starting position of projectile

include/PowerupComponent.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "Component.h"
+#include "AssetManager.h"
+
+class PowerupComponent : public Component
+{
+public:
+	PowerupComponent(PowerupType type);
+	~PowerupComponent() {};
+
+	void update() override;
+	void heartEffect(Entity* player);
+	void movementSpeedEffect(Entity* player);
+	void atkSpeedEffect(Entity* player);
+
+private:
+	void (PowerupComponent::*pickupFunc)(Entity* player);
+};

include/ProjectileComponent.h

@@ -2,6 +2,7 @@
 
 #include "Component.h"
 #include "Vector2D.h"
+#include "Constants.h"
 
 class TransformComponent;
 

include/StatEffectsComponent.h

@@ -0,0 +1,27 @@
+#pragma once
+#include "Component.h"
+#include "Constants.h"
+#include <cstdint>
+#include <array>
+
+enum class Stats
+{
+	MOVEMENT_SPEED,
+	ATTACK_SPEED
+};
+
+class StatEffectsComponent : public Component{
+public:
+	StatEffectsComponent() {};
+	~StatEffectsComponent() {};
+
+	void init() override;
+	void update() override;
+
+	void modifyStatDur(Stats stat, uint8_t duration);
+
+	void modifyStatValue(Stats stat, int modifier);
+
+private:
+	std::array<int8_t, MAX_STATS> buffs = { 0 };
+};

include/TextureDict.h

@@ -2,15 +2,23 @@
 
 #include <map>
 #include <string>
+#include "AssetManager.h"
 
 class TextureDict
 {
 public:
-	const std::map<int, std::string> textureDictionary = {
+	const std::map<int, std::string> tileDictionary = {
 		{1, "assets/water.png"},
 		{2, "assets/dirt.png"},
 		{3, "assets/grass.png"},
 		{7, "assets/grass_water_left.png"},
 		{9, "assets/grass_water_right.png"}
 	};
+
+
+	std::map<PowerupType, std::string> powerupDictionary = {
+		{PowerupType::HEART, "assets/heart_powerup.png"},
+		{PowerupType::WALKINGSPEED, "assets/movement_speed_powerup.png"},
+		{PowerupType::SHOOTINGSPEED, "assets/atk_speed_powerup.png"}
+	};
 };

include/TextureManager.h

@@ -2,15 +2,10 @@
 
 #include <SDL_render.h>
 #include <map>
+#include <memory>
+#include <string>
 #include <vector>
 
-struct cmp_str
-{
-	bool operator()(char const *a, char const *b) const {
-		return strcmp(a, b) < 0;
-	}
-};
-
 class TextureManager
 {
 	public:
@@ -21,7 +16,7 @@ class TextureManager
 			}
 		}
 
-		std::map<const char*, SDL_Texture*, cmp_str> texture_cache;
+		std::map<std::string, SDL_Texture*> texture_cache;
 
 		SDL_Texture* loadTexture(const char* fileName);
         static std::vector<SDL_Rect> splitSpriteSheet(SDL_Texture* spriteSheet, int width, int height, int spritesOnSheet);

include/TransformComponent.h

@@ -2,6 +2,7 @@
 
 #include "Component.h"
 #include "Vector2D.h"
+#include "Constants.h"
 
 class TransformComponent : public Component
 {
@@ -23,4 +24,5 @@ public:
 
 	void init() override;
 	void update() override;
+	void modifySpeed(int8_t modifier);
 };

src/AssetManager.cpp

@@ -1,11 +1,21 @@
 #include "AssetManager.h"
 
-#include "Entity.h"
 #include "TextureManager.h"
 #include "SoundManager.h"
 #include "Components.h"
 #include "Game.h"
 
+#include "TransformComponent.h"
+
+#include "CollisionHandler.h"
+#include "ColliderComponent.h"
+#include "Constants.h"
+#include "Entity.h"
+#include "Game.h"
+#include "Vector2D.h"
+#include "PowerupComponent.h"
+#include <iostream>
+
 AssetManager::AssetManager(Manager* manager) : man(manager) {}
 
 AssetManager::~AssetManager() {}
@@ -37,3 +47,56 @@ void AssetManager::createProjectile(Vector2D pos, Vector2D velocity, int scale,
     projectile.addGroup((size_t)GroupLabel::PROJECTILE);
     projectile.setTeam(teamLabel);
 }
+
+void AssetManager::createPowerup(Vector2D pos, PowerupType type) {
+    TextureDict textureDict;
+
+    auto& powerups(man->addEntity());
+    powerups.addComponent<TransformComponent>(pos.x, pos.y, 32, 32, 1); //32x32 is standard size for objects
+    auto it = textureDict.powerupDictionary.find(type);
+    if (it == textureDict.powerupDictionary.end()) {
+        std::cout << "it end" << std::endl;
+    }
+
+    try {
+        powerups.addComponent<SpriteComponent>(it->second.data());
+    }
+    catch (std::runtime_error e) {
+        std::cout << e.what() << std::endl;
+    }
+
+    powerups.addComponent<ColliderComponent>("powerup", 0.6f);
+    powerups.addComponent<PowerupComponent>(type);
+    powerups.addGroup((size_t)GroupLabel::POWERUPS);
+}
+
+Vector2D AssetManager::calculateSpawnPosition()
+{
+	Vector2D spawnPos = Vector2D(-1, -1);
+	bool conflict = false;
+	for (int i = 0; i <= SPAWN_ATTEMPTS; i++)
+	{
+		SDL_Rect spawnRect;
+		spawnRect.h = spawnRect.w = 32;
+		spawnRect.x = rand() % (SCREEN_SIZE_WIDTH - spawnRect.w);
+		spawnRect.y = rand() % (SCREEN_SIZE_HEIGHT - spawnRect.h);
+		conflict = false;
+		for (auto cc : Game::collisionHandler->getColliders({ GroupLabel::MAPTILES }))
+		{
+			if (SDL_HasIntersection(&spawnRect, &cc->collider) && strcmp(cc->tag, "projectile"))
+			{
+				conflict = true;
+				break;
+			}
+		}
+		if (conflict) continue;
+		spawnPos = Vector2D(spawnRect.x, spawnRect.y);
+	}
+	return spawnPos;
+}
+
+PowerupType AssetManager::calculateType()
+{
+	PowerupType type = PowerupType(rand() % 3);
+	return type;
+}

src/Game.cpp

@@ -10,6 +10,7 @@
 #include "HealthComponent.h"
 #include "Map.h"
 #include "TextureManager.h"
+#include "StatEffectsComponent.h"
 #include "Constants.h"
 
 Map* map;
@@ -29,7 +30,6 @@ auto& player1(manager.addEntity());
 auto& player2(manager.addEntity());
 
 auto& wall(manager.addEntity());
-//auto& projectile (manager.addEntity());
 
 Game::Game() = default;
 
@@ -153,18 +153,20 @@ void Game::init(const char* title, int xpos, int ypos, int width, int height, bo
 	player1.setTeam(TeamLabel::BLUE);
 	player1.addComponent<TransformComponent>(80,80,2); //posx, posy, scale
 	player1.addComponent<SpriteComponent>("assets/chicken_knight_spritesheet.png", true); //adds sprite (32x32px), path needed
-	player1.addComponent<KeyboardController>(SDL_SCANCODE_W, SDL_SCANCODE_S, SDL_SCANCODE_A, SDL_SCANCODE_D, SDL_SCANCODE_E, Vector2D(1, 0));//custom keycontrols can be added
+	player1.addComponent<KeyboardController>(SDL_SCANCODE_W, SDL_SCANCODE_S, SDL_SCANCODE_A, SDL_SCANCODE_D, SDL_SCANCODE_E, Vector2D(2, 0));//custom keycontrols can be added
 	player1.addComponent<ColliderComponent>("player", 0.8f); //adds tag (for further use, reference tag)
 	player1.addComponent<HealthComponent>(5, Direction::LEFT);
+	player1.addComponent<StatEffectsComponent>();
 	player1.addGroup((size_t) GroupLabel::PLAYERS); //tell programm what group it belongs to for rendering order
 
 
 	player2.setTeam(TeamLabel::RED);
 	player2.addComponent<TransformComponent>(600, 500, 2);
 	player2.addComponent<SpriteComponent>("assets/chicken_spritesheet.png", true);
-	player2.addComponent<KeyboardController>(SDL_SCANCODE_UP, SDL_SCANCODE_DOWN, SDL_SCANCODE_LEFT, SDL_SCANCODE_RIGHT, SDL_SCANCODE_RCTRL, Vector2D(-1, 0));
+	player2.addComponent<KeyboardController>(SDL_SCANCODE_UP, SDL_SCANCODE_DOWN, SDL_SCANCODE_LEFT, SDL_SCANCODE_RIGHT, SDL_SCANCODE_RCTRL, Vector2D(-2, 0));
 	player2.addComponent<ColliderComponent>("enemy", 0.8f);
 	player2.addComponent<HealthComponent>(5, Direction::RIGHT);
+	player2.addComponent<StatEffectsComponent>();
 	player2.addGroup((size_t) GroupLabel::PLAYERS);
 
 }
@@ -269,6 +271,7 @@ auto& tiles(manager.getGroup((size_t)GroupLabel::MAPTILES));
 auto& players(manager.getGroup((size_t)GroupLabel::PLAYERS));
 auto& projectiles(manager.getGroup((size_t)GroupLabel::PROJECTILE));
 auto& hearts(manager.getGroup((size_t)GroupLabel::HEARTS));
+auto& powerups(manager.getGroup((size_t)GroupLabel::POWERUPS));
 
 void Game::handleEvents()
 {
@@ -289,9 +292,16 @@ void Game::update()
 	Vector2D playerPos = player1.getComponent<TransformComponent>().position;
 	Vector2D enemyPos = player2.getComponent<TransformComponent>().position;
 
+	int powerupSpawn = rand() % 500;
+
 	manager.refresh();
 	manager.update();
 
+	if (powerupSpawn == 0)
+	{
+		assets->createPowerup(assets->calculateSpawnPosition(), assets->calculateType());
+	}
+
 	// needs to be in game.cpp to have access to internal functions
 	for (auto& player : manager.getGroup((size_t) GroupLabel::PLAYERS)) {
 		if (player->getComponent<HealthComponent>().getHealth() <= 0) {
@@ -304,13 +314,14 @@ void Game::render()
 {
 	SDL_RenderClear(renderer);
 	for (auto& t : tiles)
-	{
 		t->draw();
-	}
-	for (auto& p : players)
-	{
+
+	for (auto& p : powerups)
 		p->draw();
-	}
+
+	for (auto& p : players)
+		p->draw();
+	
 	for (auto& p : projectiles)
 		p->draw();
 

src/KeyboardController.cpp

@@ -63,15 +63,20 @@ void KeyboardController::update()
 			if (fireVelocity.x > 0) {
 				sprite->setDirection(Direction::RIGHT);
 				Game::assets->createProjectile(Vector2D(player->position.x, player->position.y), fireVelocity,
-					1, 180, 1, "assets/egg.png", this->entity->getTeam());
+					1, 180, 2, "assets/egg.png", this->entity->getTeam());
 			}
 			else {
 				sprite->setDirection(Direction::LEFT);
 				Game::assets->createProjectile(Vector2D(player->position.x, player->position.y), fireVelocity,
-					1, 180, 1, "assets/egg.png", this->entity->getTeam());
+					1, 180, 2, "assets/egg.png", this->entity->getTeam());
 			}
 
 			lastFireTime = currentTicks;
 		}
 	}
 }
+
+void KeyboardController::modifyAtkSpeed(int8_t modifier)
+{
+	this->fireCooldown -= modifier * 400;
+}

src/PowerupComponent.cpp

@@ -0,0 +1,57 @@
+#include "PowerupComponent.h"
+#include "Game.h"
+#include "CollisionHandler.h"
+#include "Entity.h"
+#include "HealthComponent.h"
+#include "StatEffectsComponent.h"
+#include "Constants.h"
+#include <cstdint>
+
+PowerupComponent::PowerupComponent(PowerupType type)
+{
+    switch (type)
+    {
+    case PowerupType::HEART:
+        this->pickupFunc = (&PowerupComponent::heartEffect);
+        break;
+    case PowerupType::WALKINGSPEED:
+        this->pickupFunc = (&PowerupComponent::movementSpeedEffect);
+        break;
+    case PowerupType::SHOOTINGSPEED:
+        this->pickupFunc = (&PowerupComponent::atkSpeedEffect);
+        break;
+    default:
+        break;
+    }
+}
+
+void  PowerupComponent::update()
+{
+    Entity* player;
+    if ((player = Game::collisionHandler->getAnyIntersection<Entity*>(
+        entity,
+        Vector2D(0, 0),
+        { GroupLabel::PLAYERS },
+        {},
+        true)) != nullptr)
+    {
+        (this->*pickupFunc)(player);
+        this->entity->destroy();
+    }
+}
+
+void PowerupComponent::heartEffect(Entity* player)
+{
+    if(player->getComponent<HealthComponent>().getHealth() < 5)
+        player->getComponent<HealthComponent>().modifyHealth(1);
+}
+
+void PowerupComponent::movementSpeedEffect(Entity* player)
+{
+    player->getComponent<StatEffectsComponent>().modifyStatDur(Stats::MOVEMENT_SPEED, (uint8_t) BUFF_DURATION);
+}
+
+void PowerupComponent::atkSpeedEffect(Entity* player)
+{
+    player->getComponent<StatEffectsComponent>().modifyStatDur(Stats::ATTACK_SPEED, (uint8_t) BUFF_DURATION);
+}

src/SpriteComponent.cpp

@@ -76,10 +76,5 @@ void SpriteComponent::playAnimation(AnimationType type)
 
 void SpriteComponent::setDirection(Direction direction) 
 {
-	if (direction == Direction::RIGHT) {
-		this->flipped = true;
-		return;
-	}
-
-	this->flipped = false;	
+	this->flipped = direction == Direction::RIGHT;
 }

src/StatEffectsComponent.cpp

@@ -0,0 +1,42 @@
+#include "StatEffectsComponent.h"
+#include "Entity.h"
+#include "TransformComponent.h"
+#include "KeyboardController.h"
+#include <algorithm>
+#include <iostream>
+
+void StatEffectsComponent::init()
+{}
+
+void StatEffectsComponent::update()
+{
+	for (int i = 0; i < MAX_STATS; i++)
+	{
+		if (this->buffs.at(i) == 0) continue;
+		if (this->buffs.at(i) - 1 == 0)
+		{
+			this->modifyStatValue((Stats)i, BUFF_VALUE * -1);
+		}
+		this->buffs.at(i) -= 1;
+	}
+}
+
+void StatEffectsComponent::modifyStatDur(Stats stat, uint8_t duration)
+{
+	if(this->buffs.at((uint8_t)stat) == 0) this->modifyStatValue(stat, BUFF_VALUE);
+	this->buffs.at((uint8_t)stat) += duration;
+}
+
+void StatEffectsComponent::modifyStatValue(Stats stat, int modifier) //modifier is basically there so the modifyfuncs in the components know if stats should be increased or decreased
+{
+	switch (stat)
+	{
+	case Stats::MOVEMENT_SPEED:
+		this->entity->getComponent<TransformComponent>().modifySpeed(modifier);
+		break;
+	case Stats::ATTACK_SPEED:
+		this->entity->getComponent<KeyboardController>().modifyAtkSpeed(modifier);
+		break;
+	default: break;
+	}
+}

src/TextureManager.cpp

@@ -1,5 +1,6 @@
 #include "TextureManager.h"
 
+#include <memory>
 #include <stdexcept>
 #include <string>
 
@@ -13,7 +14,7 @@ SDL_Texture* TextureManager::loadTexture(const char* fileName)
 	}
 	auto texture = IMG_LoadTexture(Game::renderer, fileName);
 	if (texture == NULL) throw std::runtime_error(std::string("Couldn't load texture '") + fileName + "'");
-	this->texture_cache.emplace(fileName, texture);
+	this->texture_cache.emplace(std::string(fileName), texture);
 	printf("Loaded texture at '%s'\n", fileName);
 	return texture;
 }

src/TileComponent.cpp

@@ -15,13 +15,11 @@ TileComponent::TileComponent(int x, int y, int w, int h, int id)
 	this->tileRect.h = h;
 	tileID = id;
 
-	auto it = textureDict.textureDictionary.find(tileID); //every id has its own distinct texture (in texturedict.h)
-	if (it == textureDict.textureDictionary.end()) {
+	auto it = textureDict.tileDictionary.find(tileID); //every id has its own distinct texture (in texturedict.h)
+	if (it == textureDict.tileDictionary.end()) {
 		std::cout << "it end" << std::endl;
 		return;
 	}
-	bool test = it == textureDict.textureDictionary.end();
-	// std::cout << it->second.data() << std::endl;
 	this->path = it->second.data();
 }
 

src/TransformComponent.cpp

@@ -62,21 +62,26 @@ void TransformComponent::update()
 
 	// TODO: move to separate functions
 
-	if (this->entity->hasGroup((size_t) GroupLabel::PLAYERS)) {
+	if (this->entity->hasGroup((size_t)GroupLabel::PLAYERS)) {
 		IntersectionBitSet intersections =
 			(CollisionHandler::getIntersectionWithBounds(entity, Vector2D(positionChange.x, 0)) |
-			(Game::collisionHandler->getAnyIntersection<IntersectionBitSet>(entity, Vector2D(positionChange.x, 0), {GroupLabel::MAPTILES, GroupLabel::COLLIDERS})) &
+				(Game::collisionHandler->getAnyIntersection<IntersectionBitSet>(entity, Vector2D(positionChange.x, 0), { GroupLabel::MAPTILES, GroupLabel::COLLIDERS })) &
 				IntersectionBitSet("0011")) |
 			(CollisionHandler::getIntersectionWithBounds(entity, Vector2D(0, positionChange.y)) |
-			(Game::collisionHandler->getAnyIntersection<IntersectionBitSet>(entity, Vector2D(0, positionChange.y), {GroupLabel::MAPTILES, GroupLabel::COLLIDERS})) &
+				(Game::collisionHandler->getAnyIntersection<IntersectionBitSet>(entity, Vector2D(0, positionChange.y), { GroupLabel::MAPTILES, GroupLabel::COLLIDERS })) &
 				IntersectionBitSet("1100"));
 
-		if (intersections.test((size_t) direction::LEFT) || intersections.test((size_t) direction::RIGHT))
+		if (intersections.test((size_t)direction::LEFT) || intersections.test((size_t)direction::RIGHT))
 			positionChange.x = 0;
 
-		if (intersections.test((size_t) direction::UP) || intersections.test((size_t) direction::DOWN))
+		if (intersections.test((size_t)direction::UP) || intersections.test((size_t)direction::DOWN))
 			positionChange.y = 0;
 	}
 
 	position += positionChange;
-};
+}
+
+void TransformComponent::modifySpeed(int8_t modifier)
+{
+	this->speed += modifier;
+}

src/main.cpp

@@ -1,10 +1,12 @@
 #include "Game.h"
 #include "Constants.h"
+#include <ctime>
 
 Game* game = nullptr;
 
 int main(int argc, char* argv[])
 {
+	srand(time(NULL));
 	const int frameDelay = 1000 / FPS;
 
 	Uint32 frameStart;