cleaned up code

1 files changed, 55 insertions, 0 deletions

diff --git a/src/window.cpp b/src/window.cpp
new file mode 100644
index 0000000..adc51c0
--- /dev/null
+++ b/src/window.cpp
@@ -0,0 +1,55 @@
+#include "glad/glad.h"
+#include "GLFW/glfw3.h"
+
+#include <iostream>
+
+namespace Window {
+	namespace { // private
+		GLFWwindow* window;
+
+		void framebuffer_size_callback(GLFWwindow* window, int width, int height)
+		{
+			glViewport(0, 0, width, height);
+		}
+	}
+
+	GLFWwindow* get()
+	{
+		return window;
+	}
+
+	int init(
+			unsigned int width,
+			unsigned int height,
+			const char* title
+			)
+	{
+		glfwInit();
+		glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); // 4.6 is highest
+		glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+		glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+
+		window = glfwCreateWindow(width, height, title, NULL, NULL);
+		if (window == NULL)
+		{
+			std::cout << "Failed to create GLFW window" << std::endl;
+			glfwTerminate();
+			return -1;
+		}
+		glfwMakeContextCurrent(window);
+
+		if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
+		{
+			std::cout << "Failed to init GLAD" << std::endl;
+			return -1;
+		}
+
+		glViewport(0, 0, 800, 600);
+
+		glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+		return 0;
+	}
+}