Much much better

src/platform/glfw/glwfwplatform.c

@@ -0,0 +1,75 @@
+// Copyright (c) 2021 Dominic Msters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "glwfwplatform.h"
+
+GLFWwindow *window;
+game_t *runningGame;
+
+int32_t main() {
+  // Create out platform context
+  platform_t platform = {
+    .name = "glfw",
+    .screenWidth = WINDOW_WIDTH_DEFAULT,
+    .screenHeight = WINDOW_HEIGHT_DEFAULT
+  };
+
+  // Attempt to init GLFW
+  if(!glfwInit()) return NULL;
+  window = glfwCreateWindow(platform.screenWidth, platform.screenHeight,
+    "", NULL, NULL
+  );
+  if(!window) {
+    glfwTerminate();
+    return 1;
+  }
+
+  // Load GLAD
+  glfwMakeContextCurrent(window);
+  gladLoadGLLoader((GLADloadproc)glfwGetProcAddress);
+
+  // Setup window listeners
+  glfwSetWindowSizeCallback(window, &glfwOnResize);
+  glfwSetKeyCallback(window, &glfwOnKey);
+
+  // Create the game instance
+  runningGame = gameInit(&platform);
+  if(runningGame == NULL) return 1;
+
+  // Main Render Loop
+  while(!glfwWindowShouldClose(window)) {
+    gameUpdate(runningGame);
+    glfwSwapBuffers(window);
+    glfwPollEvents();
+  }
+
+  // Game has finished running, cleanup.
+  gameDispose(runningGame);
+  
+  // Terminate the GLFW context.
+  glfwSetWindowSizeCallback(window, NULL);
+  glfwTerminate();
+
+  return 0;
+}
+
+void glfwOnResize(GLFWwindow *window, int32_t width, int32_t height) {
+  engine_t *engine = gameGetEngine(runningGame);
+  engine->platform->screenWidth = width;
+  engine->platform->screenWidth = height;
+  renderSetResolution(engine->render, width, height);
+}
+
+void glfwOnKey(GLFWwindow *window,
+  int32_t key, int32_t scancode, int32_t action, int32_t mods
+) {
+  char *title = glfwGetKeyName(key, scancode);
+  if(title == NULL) {
+    printf("Unknown Key %d", scancode);
+  } else {
+    printf(title);
+  }
+  printf("\n");
+}

src/platform/glfw/glwfwplatform.h

@@ -0,0 +1,47 @@
+// Copyright (c) 2021 Dominic Msters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+
+// I load GLAD and GLFW Here because they need to be included in specific orders
+#include <glad/glad.h>
+#include <GLFW/glfw3.h>
+#include <stdint.h>
+#include "../../engine/platform.h"
+#include "../../engine/game/game.h"
+#include "../../engine/display/render.h"
+
+#define WINDOW_WIDTH_DEFAULT 480
+#define WINDOW_HEIGHT_DEFAULT 270
+
+/** The GLFW Window Context Pointer */
+extern GLFWwindow *window;
+extern game_t *runningGame;
+
+/**
+ * Entry of the program
+ * @return 0 if success, anything else for failure.
+ */
+int32_t main();
+
+
+/**
+ * Resize callbacks.
+ * 
+ * @param window Window that was resized.
+ * @param width New window width.
+ * @param height New window height.
+ */
+void glfwOnResize(GLFWwindow *window, int32_t width, int32_t height);
+
+
+/**
+ * Keyboard Input callbacks.
+ * 
+ * @param window Window that was resized.
+ */
+void glfwOnKey(GLFWwindow *window,
+  int32_t key, int32_t scancode, int32_t action, int32_t mods
+);