added coin plus event

src/Coin.cpp

@@ -0,0 +1,28 @@
+#include "Coin.h"
+#include "Game.h"
+
+void Coin::draw(QPainter &painter) const {
+	painter.save();
+
+	painter.translate(pos);
+	painter.setBrush(QBrush(Qt::yellow, Qt::SolidPattern));
+	painter.drawEllipse(QPoint(), radius, radius);
+
+	painter.drawText(QRect(-radius, -radius, radius * 2, radius * 2), Qt::AlignCenter, QString::fromStdString(std::to_string(value)));
+
+	painter.restore();
+}
+
+bool Coin::isLost() const {
+	return pos.x() < -100;
+}
+
+Coin::Coin() {
+	int y = int(Game::Random(SPEC_Y, GROUND_Y));
+	pos = {WIDTH, y};
+	value = int(Game::Random(30, 37));
+}
+
+void Coin::update(float dTime) {
+	pos.setX(float(pos.x()) - velocity * dTime);
+}

src/Coin.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <QPainter>
+
+class Coin {
+public:
+	explicit Coin();
+	bool collected = false;
+	QPoint pos;
+	float velocity = 150;
+	int value;
+	int radius = 15;
+	bool isLost() const;
+	void draw(QPainter &painter) const;
+	void update(float dTime);
+};

src/Event.h

@@ -60,3 +60,8 @@ struct WallJumpEvent : GameEvent {
 struct WallCrashEvent : GameEvent {
 	Player * player = nullptr;
 };
+
+struct CoinCollectEvent : GameEvent {
+	Player * player = nullptr;
+	int value = 0;
+};

src/Game.cpp

@@ -12,22 +12,38 @@ void Game::draw(QPixmap &output) {
 		spectator.draw(p);
 	for (auto & wall : walls)
 		wall.draw(p);
+	for (auto & coin : coins)
+		coin.draw(p);
 	player.draw(p);
 }
 
 void Game::update(float dTime) {
 	eTime += dTime;
-	player.update(dTime, walls);
+	player.update(dTime, walls, coins);
 	for (auto & wall : walls)
 		wall.update(dTime);
+	for (auto & coin : coins)
+		coin.update(dTime);
+	tryCreateCoin();
+	removeCoins();
 	tryCreateWall();
 	removeWalls();
 }
 
+void Game::tryCreateCoin() {
+	if (Game::Random(0, 1000) > 995)
+		coins.emplace_back();
+}
+
+void Game::removeCoins() {
+	erase_if(coins, [](const Coin& coin){
+		return coin.isLost() || coin.collected;
+	});
+}
+
 void Game::tryCreateWall() {
-	if (Game::Random(0, 1000) > 990){
+	if (Game::Random(0, 1000) > 990)
 		walls.emplace_back();
-	}
 }
 
 void Game::removeWalls() {

src/Game.h

@@ -4,6 +4,7 @@
 #include "Player.h"
 #include "Spectator.h"
 #include "Wall.h"
+#include "Coin.h"
 
 #define WIDTH 1000
 #define HEIGHT 500
@@ -15,6 +16,9 @@ class Game {
 	Player player;
 	std::vector<Spectator> spectators;
 	std::vector<Wall> walls;
+	std::vector<Coin> coins;
+	void tryCreateCoin();
+	void removeCoins();
 	void tryCreateWall();
 	void removeWalls();
 public:

src/Listener.cpp

@@ -5,6 +5,8 @@ void GameListener::accept(GameEvent *event) {
 		OnWallJumped(wallJumpEvent);
 	if (auto wallCrashEvent = dynamic_cast<WallCrashEvent *>(event))
 		OnWallCrashed(wallCrashEvent);
+	if (auto coinCollectEvent = dynamic_cast<CoinCollectEvent *>(event))
+		OnCoinCollected(coinCollectEvent);
 }
 
 void InputListener::accept(InputEvent *event) {

src/Listener.h

@@ -28,4 +28,5 @@ public:
 protected:
 	virtual void OnWallJumped(WallJumpEvent * event) {};
 	virtual void OnWallCrashed(WallCrashEvent * event) {};
+	virtual void OnCoinCollected(CoinCollectEvent * event) {};
 };

src/Player.cpp

@@ -12,12 +12,12 @@ void Player::draw(QPainter &painter) const {
 	painter.save();
 
 	painter.translate(pos.toPoint());
-	painter.fillRect(-5, -10, 10, 10, Qt::black);
+	painter.fillRect(-5, -10, 10, 10, Qt::darkGreen);
 
 	painter.restore();
 }
 
-void Player::update(float dTime, std::vector<Wall> &walls) {
+void Player::update(float dTime, std::vector<Wall> &walls, std::vector<Coin>& coins) {
 	pos += vel * dTime;
 	vel += acc * dTime;
 
@@ -47,6 +47,18 @@ void Player::update(float dTime, std::vector<Wall> &walls) {
 			}
 		}
 	}
+	for (auto &coin : coins){
+		if (coin.collected)
+			continue;
+		if (pos.distanceToPoint(QVector2D(coin.pos.x(), coin.pos.y())) <= coin.radius){
+			coin.collected = true;
+			auto e = new CoinCollectEvent;
+			e->time = Game::instance->eTime;
+			e->player = this;
+			e->value = coin.value;
+			Game::eventQueue->submitEvent(e);
+		}
+	}
 }
 
 void Player::jump() {

src/Player.h

@@ -3,6 +3,7 @@
 #include "Listener.h"
 #include "Event.h"
 #include "Wall.h"
+#include "Coin.h"
 #include <QPainter>
 
 class Player : public InputListener {
@@ -15,7 +16,7 @@ class Player : public InputListener {
 	void jump();
 public:
 	void draw(QPainter &painter) const;
-	void update(float dTime, std::vector<Wall>&);
+	void update(float dTime, std::vector<Wall>&, std::vector<Coin>&);
 
 protected:
 	void mousePressed(MouseEvent *) override;

src/Spectator.cpp

@@ -6,11 +6,11 @@
 void Spectator::OnWallJumped(WallJumpEvent *event) {
 	float timeDiff = Game::instance->eTime - event->time;
 	if (timeDiff > 2){
-		currentMessage = "Ignored event";
+		currentMessage = "Ignored jump";
 		return;
 	}
 
-	currentMessage = "Calculating prime...";
+	currentMessage = "Calculating Prime...";
 	int prime = getHighPrime();
 	currentMessage = std::to_string(prime);
 }
@@ -19,6 +19,14 @@ void Spectator::OnWallCrashed(WallCrashEvent *event) {
 	currentMessage = "Crash!";
 }
 
+void Spectator::OnCoinCollected(CoinCollectEvent *event) {
+	int value = event->value;
+
+	currentMessage = "Calculating Fibo(" + std::to_string(value) + ")";
+	int fib = getHighFibonacci(value);
+	currentMessage = std::to_string(fib);
+}
+
 
 void Spectator::draw(QPainter &painter) const {
 	painter.save();
@@ -67,4 +75,13 @@ int Spectator::getHighPrime() {
 	return 2;
 }
 
+int Spectator::getHighFibonacci(int val) {
+	std::function<int(int)> fib = [&fib](int n){
+		if (n == 1 || n == 2)
+			return n;
+		return fib(n - 1) + fib(n - 2);
+	};
+	return fib(val);
+}
+
 

src/Spectator.h

@@ -6,8 +6,10 @@ class Spectator : public GameListener {
 protected:
 	void OnWallJumped(WallJumpEvent * event) override;
 	void OnWallCrashed(WallCrashEvent * event) override;
+	void OnCoinCollected(CoinCollectEvent * event) override;
 	std::string currentMessage;
 	static int getHighPrime();
+	static int getHighFibonacci(int val);
 public:
 	QPoint pos;
 	QSize size;

src/Wall.cpp

@@ -7,7 +7,7 @@ void Wall::draw(QPainter &painter) const {
 	int w = size.width();
 	int h = size.height();
 	painter.translate(pos.toPoint());
-	painter.fillRect(w / 2, -h, w, h, Qt::black);
+	painter.fillRect(w / 2, -h, w, h, Qt::red);
 
 	painter.restore();
 }