first try at events

11 files changed, 448 insertions, 0 deletions

diff --git a/mwe/events/.vscode/settings.json b/mwe/events/.vscode/settings.json
new file mode 100644
index 0000000..b2c5be7
--- /dev/null
+++ b/mwe/events/.vscode/settings.json
@@ -0,0 +1,54 @@
+{
+    "files.associations": {
+        "iostream": "cpp",
+        "array": "cpp",
+        "atomic": "cpp",
+        "bit": "cpp",
+        "*.tcc": "cpp",
+        "cctype": "cpp",
+        "clocale": "cpp",
+        "cmath": "cpp",
+        "compare": "cpp",
+        "concepts": "cpp",
+        "cstdarg": "cpp",
+        "cstddef": "cpp",
+        "cstdint": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cwchar": "cpp",
+        "cwctype": "cpp",
+        "deque": "cpp",
+        "list": "cpp",
+        "map": "cpp",
+        "string": "cpp",
+        "unordered_map": "cpp",
+        "vector": "cpp",
+        "exception": "cpp",
+        "algorithm": "cpp",
+        "functional": "cpp",
+        "iterator": "cpp",
+        "memory": "cpp",
+        "memory_resource": "cpp",
+        "numeric": "cpp",
+        "optional": "cpp",
+        "random": "cpp",
+        "string_view": "cpp",
+        "system_error": "cpp",
+        "tuple": "cpp",
+        "type_traits": "cpp",
+        "utility": "cpp",
+        "initializer_list": "cpp",
+        "iosfwd": "cpp",
+        "istream": "cpp",
+        "limits": "cpp",
+        "new": "cpp",
+        "numbers": "cpp",
+        "ostream": "cpp",
+        "sstream": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "cinttypes": "cpp",
+        "typeinfo": "cpp",
+        "valarray": "cpp"
+    }
+}
diff --git a/mwe/events/CMakeLists.txt b/mwe/events/CMakeLists.txt
new file mode 100644
index 0000000..3bbda37
--- /dev/null
+++ b/mwe/events/CMakeLists.txt
@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.5)
+project(gameloop)
+
+# Set the C++ standard (optional, but good practice)
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
+set(CMAKE_BUILD_TYPE Debug)
+
+# Find the SDL2 package
+find_package(SDL2 REQUIRED)
+
+add_executable(gameloop
+	src/window.cpp
+	src/main.cpp
+	src/eventManager.cpp
+)
+
+# Link the SDL2 library to your project
+target_link_libraries(gameloop ${SDL2_LIBRARIES})
+
+# Include SDL2 header files and project headers
+target_include_directories(gameloop PRIVATE ${SDL2_INCLUDE_DIRS})
+target_include_directories(gameloop PRIVATE ${CMAKE_SOURCE_DIR}/include)
+
diff --git a/mwe/events/imgs/demo.bmp b/mwe/events/imgs/demo.bmp
new file mode 100644
index 0000000..65354fe
--- /dev/null
+++ b/mwe/events/imgs/demo.bmp
diff --git a/mwe/events/imgs/demo.jpg b/mwe/events/imgs/demo.jpg
new file mode 100644
index 0000000..f534e1b
--- /dev/null
+++ b/mwe/events/imgs/demo.jpg
diff --git a/mwe/events/include/event.h b/mwe/events/include/event.h
new file mode 100644
index 0000000..8774a7d
--- /dev/null
+++ b/mwe/events/include/event.h
@@ -0,0 +1,207 @@
+#pragma once
+#include <cstdint>
+#include <iostream>
+#include <string>
+#include <unordered_map>
+using Keycode = uint16_t;
+enum : Keycode {
+    // From glfw3.h
+    Space = 32,
+    Apostrophe = 39, /* ' */
+    Comma = 44,      /* , */
+    Minus = 45,      /* - */
+    Period = 46,     /* . */
+    Slash = 47,      /* / */
+
+    D0 = 48, /* 0 */
+    D1 = 49, /* 1 */
+    D2 = 50, /* 2 */
+    D3 = 51, /* 3 */
+    D4 = 52, /* 4 */
+    D5 = 53, /* 5 */
+    D6 = 54, /* 6 */
+    D7 = 55, /* 7 */
+    D8 = 56, /* 8 */
+    D9 = 57, /* 9 */
+
+    Semicolon = 59, /* ; */
+    Equal = 61,     /* = */
+
+    A = 65,
+    B = 66,
+    C = 67,
+    D = 68,
+    E = 69,
+    F = 70,
+    G = 71,
+    H = 72,
+    I = 73,
+    J = 74,
+    K = 75,
+    L = 76,
+    M = 77,
+    N = 78,
+    O = 79,
+    P = 80,
+    Q = 81,
+    R = 82,
+    S = 83,
+    T = 84,
+    U = 85,
+    V = 86,
+    W = 87,
+    X = 88,
+    Y = 89,
+    Z = 90,
+
+    LeftBracket = 91,  /* [ */
+    Backslash = 92,    /* \ */
+    RightBracket = 93, /* ] */
+    GraveAccent = 96,  /* ` */
+
+    World1 = 161, /* non-US #1 */
+    World2 = 162, /* non-US #2 */
+
+    /* Function keys */
+    Escape = 256,
+    Enter = 257,
+    Tab = 258,
+    Backspace = 259,
+    Insert = 260,
+    Delete = 261,
+    Right = 262,
+    Left = 263,
+    Down = 264,
+    Up = 265,
+    PageUp = 266,
+    PageDown = 267,
+    Home = 268,
+    End = 269,
+    CapsLock = 280,
+    ScrollLock = 281,
+    NumLock = 282,
+    PrintScreen = 283,
+    Pause = 284,
+    F1 = 290,
+    F2 = 291,
+    F3 = 292,
+    F4 = 293,
+    F5 = 294,
+    F6 = 295,
+    F7 = 296,
+    F8 = 297,
+    F9 = 298,
+    F10 = 299,
+    F11 = 300,
+    F12 = 301,
+    F13 = 302,
+    F14 = 303,
+    F15 = 304,
+    F16 = 305,
+    F17 = 306,
+    F18 = 307,
+    F19 = 308,
+    F20 = 309,
+    F21 = 310,
+    F22 = 311,
+    F23 = 312,
+    F24 = 313,
+    F25 = 314,
+
+    /* Keypad */
+    KP0 = 320,
+    KP1 = 321,
+    KP2 = 322,
+    KP3 = 323,
+    KP4 = 324,
+    KP5 = 325,
+    KP6 = 326,
+    KP7 = 327,
+    KP8 = 328,
+    KP9 = 329,
+    KPDecimal = 330,
+    KPDivide = 331,
+    KPMultiply = 332,
+    KPSubtract = 333,
+    KPAdd = 334,
+    KPEnter = 335,
+    KPEqual = 336,
+
+    LeftShift = 340,
+    LeftControl = 341,
+    LeftAlt = 342,
+    LeftSuper = 343,
+    RightShift = 344,
+    RightControl = 345,
+    RightAlt = 346,
+    RightSuper = 347,
+    Menu = 348
+};
+
+class UUIDGenerator {
+public:
+    static std::uint32_t GetUniqueID()
+    {
+        static std::uint32_t id = 0;
+        return ++id;
+    }
+};
+class Event {
+public:
+    virtual ~Event() = default;
+    virtual std::uint32_t GetEventType() const = 0;
+
+    virtual std::string ToString() const { 
+        return std::to_string(GetEventType()); 
+    };
+
+    bool isHandled { false };
+};
+#define EVENT_TYPE(event_type)                  \
+    static std::uint32_t GetStaticEventType()   \
+    {                                           \
+        static std::uint32_t type = UUIDGenerator::GetUniqueID(); \
+        return type;                            \
+    }                                           \
+    std::uint32_t GetEventType() const override \
+    {                                           \
+        return GetStaticEventType();            \
+    }
+
+class KeyPressedEvent : public Event {
+public:
+    EVENT_TYPE("KeyPressedEvent");
+
+    KeyPressedEvent(int keyCode, int repeatCount)
+        : key(keyCode)
+        , repeatCount(repeatCount)
+    {
+    }
+    std::string ToString() const override
+    {
+        return "KeyPressedEvent KeyPressed" + std::to_string(key);
+    }
+
+public:
+    Keycode key { 0 };
+    int repeatCount { 0 };
+};
+
+class KeyReleasedEvent : public Event {
+public:
+    EVENT_TYPE("KeyReleased");
+
+    KeyReleasedEvent(int keyCode)
+        : key(keyCode)
+    {
+    }
+    std::string ToString() const override
+    {
+        return "KeyPressedEvent KeyPressed" + std::to_string(key);
+    }
+
+public:
+    Keycode key { 0 };
+};
+
+
diff --git a/mwe/events/include/eventHandler.h b/mwe/events/include/eventHandler.h
new file mode 100644
index 0000000..c17c586
--- /dev/null
+++ b/mwe/events/include/eventHandler.h
@@ -0,0 +1,39 @@
+#pragma once
+#include "event.h"
+#include <iostream>
+#include <functional>
+template<typename EventType>
+using EventHandler = std::function<void(const EventType& e)>;
+class EventHandlerWrapperInterface {
+public:
+    void Exec(const Event& e)
+    {
+        Call(e);
+    }
+
+    virtual std::string GetType() const = 0;
+
+private:
+    virtual void Call(const Event& e) = 0;
+};
+
+template<typename EventType>
+class EventHandlerWrapper : public EventHandlerWrapperInterface {
+public:
+    explicit EventHandlerWrapper(const EventHandler<EventType>& handler)
+        : m_handler(handler)
+        , m_handlerType(m_handler.target_type().name()) {};
+
+private:
+    void Call(const Event& e) override
+    {
+        if (e.GetEventType() == EventType::GetStaticEventType()) {
+            m_handler(static_cast<const EventType&>(e));
+        }
+    }
+
+    std::string GetType() const override { return m_handlerType; }
+
+    EventHandler<EventType> m_handler;
+    const std::string m_handlerType;
+};
diff --git a/mwe/events/include/window.h b/mwe/events/include/window.h
new file mode 100644
index 0000000..9020b1a
--- /dev/null
+++ b/mwe/events/include/window.h
@@ -0,0 +1,19 @@
+#pragma once
+#include <SDL2/SDL.h>
+#include <iostream>
+#include <vector>
+class WindowManager {
+public:
+	WindowManager();
+	virtual ~WindowManager();
+	bool initWindow();
+	void destroyWindow();
+
+	SDL_Renderer * getRenderer();
+
+private:
+	const int SCREEN_WIDTH = 800;
+	const int SCREEN_HEIGHT = 600;
+	SDL_Window * window = NULL;
+	SDL_Renderer * renderer = NULL;
+};
diff --git a/mwe/events/src/eventManager.cpp b/mwe/events/src/eventManager.cpp
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/mwe/events/src/eventManager.cpp
@@ -0,0 +1 @@
+
diff --git a/mwe/events/src/main.cpp b/mwe/events/src/main.cpp
new file mode 100644
index 0000000..8d8567d
--- /dev/null
+++ b/mwe/events/src/main.cpp
@@ -0,0 +1,14 @@
+#include <SDL2/SDL.h>
+#include <stdio.h>
+#include "event.h"
+
+
+int main(int argc, char * args[]) {
+	
+	KeyPressedEvent keyEvent(1,1);
+	KeyReleasedEvent keyRelease(1);
+	std::cout << keyEvent.GetEventType() << std::endl;
+	std::cout << keyRelease.GetEventType() << std::endl;
+	std::cin;
+	return 0;
+}
diff --git a/mwe/events/src/window.cpp b/mwe/events/src/window.cpp
new file mode 100644
index 0000000..61a4105
--- /dev/null
+++ b/mwe/events/src/window.cpp
@@ -0,0 +1,33 @@
+#include "window.h"
+WindowManager::WindowManager() {
+	if (!initWindow()) {
+		printf("Failed to initialize!\n");
+	}
+}
+WindowManager::~WindowManager() { destroyWindow(); }
+SDL_Renderer * WindowManager::getRenderer() { return renderer; }
+
+bool WindowManager::initWindow() {
+	if (SDL_Init(SDL_INIT_EVERYTHING) != 0) {
+		fprintf(stderr, "Error inititalising SDL.\n");
+		return false;
+	}
+	window = SDL_CreateWindow("SDL Tutorial", SDL_WINDOWPOS_UNDEFINED,
+							  SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH,
+							  SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
+	if (!window) {
+		fprintf(stderr, "Error creating SDL Window. \n");
+		return false;
+	}
+	renderer = SDL_CreateRenderer(window, -1, 0);
+	if (!renderer) {
+		fprintf(stderr, "Error creating SDL renderer. \n");
+		return false;
+	}
+	return true;
+}
+void WindowManager::destroyWindow() {
+	SDL_DestroyRenderer(renderer);
+	SDL_DestroyWindow(window);
+	SDL_Quit();
+}
diff --git a/mwe/events/versions/delayBased.cpp b/mwe/events/versions/delayBased.cpp
new file mode 100644
index 0000000..253a03a
--- /dev/null
+++ b/mwe/events/versions/delayBased.cpp
@@ -0,0 +1,56 @@
+#include "loopManager.h"
+#include "timer.h"
+LoopManager::LoopManager() {}
+void LoopManager::processInput() {
+	SDL_Event event;
+	SDL_PollEvent(&event);
+	switch (event.type) {
+		case SDL_QUIT:
+			gameRunning = false;
+			break;
+		case SDL_KEYDOWN:
+			if (event.key.keysym.sym == SDLK_ESCAPE) {
+				gameRunning = false;
+			}
+			break;
+	}
+}
+void LoopManager::loop() {
+	fprintf(stderr, "loop. \n");
+	while (gameRunning) {
+		//Timer::getInstance().update();
+		//deltaTime = Timer::getInstance().getDeltaTime();
+		processInput();
+		update();
+		render();
+	}
+	window.destroyWindow();
+}
+void LoopManager::setup() {
+	gameRunning = window.initWindow();
+	LoopTimer::getInstance().start();
+	LoopTimer::getInstance().setFPS(210);
+
+	for (int i = 0; i < 2; i++) {
+		GameObject * square2
+			= new GameObject("square2", i * 40, i * 40, 20, 20, 0, 0);
+		objectList.push_back(square2);
+	}
+}
+void LoopManager::render() {
+	if (gameRunning) {
+		window.render(objectList);
+	}
+}
+
+void LoopManager::update() {
+	LoopTimer & timer = LoopTimer::getInstance();
+	timer.enforceFrameRate();
+	timer.update();
+	float delta = timer.getDeltaTime();
+
+	for (int i = 0; i < objectList.size(); i++) {
+		objectList[i]->setX(objectList[i]->getX() + 50 * delta);
+		objectList[i]->setY(objectList[i]->getY() + 50 * delta);
+	}
+}