blue window

.gitignore

@@ -0,0 +1 @@
+build/

Makefile

@@ -0,0 +1,36 @@
+TARGET := program
+SRC = \
+      $(wildcard src/*.cpp) \
+      $(wildcard src/*.hpp) \
+
+BUILD    := build
+OBJECTS  := $(patsubst src/%.cpp,$(BUILD)/%.o,$(SRC))
+
+CXX      := g++
+CXXFLAGS := -pedantic-errors -Wall -Wextra -Werror
+LDFLAGS  := -lstdc++ -lm -lGL -lGLEW -lSDL2
+INCLUDE  := -Iinclude/
+
+all: $(BUILD)/$(TARGET)
+
+$(BUILD)/%.o: src/%.cpp
+	@mkdir -p $(@D)
+	$(CXX) $(CXXFLAGS) $(INCLUDE) -c $< -o $@
+
+$(BUILD)/$(TARGET): $(OBJECTS)
+	@mkdir -p $(@D)
+	$(CXX) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
+
+.PHONY: all run build clean debug release
+
+run: all
+	@./$(BUILD)/$(TARGET)
+
+debug: CXXFLAGS += -DDEBUG -g
+debug: all
+
+release: CXXFLAGS += -O2
+release: all
+
+clean:
+	-@rm -rvf $(BUILD)

README.md

@@ -1,2 +1,15 @@
-# skyridge
+# Skyridge
 
+# Build
+
+```sh
+apt install libsdl2-dev libglm-dev libglew-dev
+```
+
+```sh
+make
+```
+
+```sh
+make run
+```

src/display.cpp

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+#include "display.hpp"
+#include <GL/glew.h>
+#include <iostream>
+
+Display::Display(int width, int height, const std::string& title) {
+	SDL_Init(SDL_INIT_EVERYTHING);
+
+	SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
+	SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
+	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+	m_window = SDL_CreateWindow(title.c_str(), SDL_WINDOWPOS_CENTERED,
+			SDL_WINDOWPOS_CENTERED, width, height,
+			SDL_WINDOW_OPENGL);
+	m_glContext = SDL_GL_CreateContext(m_window);
+
+	GLenum status = glewInit();
+
+	if (status != GLEW_OK) {
+		std::cerr << "Error: Glew failed to initialize" << std::endl;
+	}
+
+	m_isClosed = false;
+}
+
+Display::~Display() {
+	SDL_GL_DeleteContext(m_glContext);
+	SDL_DestroyWindow(m_window);
+	SDL_Quit();
+}
+
+void Display::Clear(float r, float g, float b, float a) {
+	glClearColor(r, g, b, a);
+	glClear(GL_COLOR_BUFFER_BIT);
+}
+
+bool Display::IsClosed() {
+	return m_isClosed;
+}
+
+void Display::Update() {
+	SDL_GL_SwapWindow(m_window);
+	SDL_Event e;
+
+	while (SDL_PollEvent(&e)) {
+		if (e.type == SDL_QUIT) {
+			m_isClosed = true;
+		}
+	}
+}

src/display.hpp

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+#ifndef DISPLAY_H
+#define DISPLAY_H
+
+#include <SDL2/SDL.h>
+#include <string>
+
+class Display {
+	public:
+		Display(int width, int height, const std::string& title);
+
+		void Clear(float r, float g, float b, float a);
+		void Update();
+		bool IsClosed();
+
+		virtual ~Display();
+	protected:
+	private:
+		//Display(const Display& other) {}
+		//void operator=(const Display& other) {}
+
+		SDL_Window* m_window;
+		SDL_GLContext m_glContext;
+		bool m_isClosed;
+};
+
+#endif // DISPLAY_H

src/main.cpp

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+#include <iostream>
+#include <GL/glew.h>
+#include "display.hpp"
+
+int main() {
+	Display display(800, 600, "Hello world!");
+
+	while (!display.IsClosed()) {
+		display.Clear(0.0f, 0.15f, 0.3f, 1.0f);
+		display.Update();
+	}
+
+	return 0;
+}