Started work on a vector library.

CMakeLists.txt

@@ -3,26 +3,43 @@ project(new-engine
     VERSION 0
     DESCRIPTION "Simple Engine Experiment in C"
     HOMEPAGE_URL "https://git.warwick-new.co.uk/"
-    LANGUAGES C)
+    LANGUAGES C
+)
 
-set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD 17)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # Dependancies
 find_package(SDL2 REQUIRED)
 find_package(SDL2_IMAGE REQUIRED)
+find_package(Vulkan REQUIRED)
+find_package(glm REQUIRED)
 
 # Include dirs
-include_directories(${SDL2_INCLUDE_DIRS})
-include_directories(${SDL2_IMAGE_INCLUDE_DIRS})
+include_directories(
+  ${SDL2_INCLUDE_DIRS}
+  ${SDL2_IMAGE_INCLUDE_DIRS}
+  ${Vulkan_INCLUDE_DIRS}
+  ${GLM_INCLUDE_DIRS}
+)
 
 # Executables
-add_executable(${PROJECT_NAME} main.c)
+file(GLOB_RECURSE SOURCE_FILES
+    ${CMAKE_SOURCE_DIR}/src/*.c)
+file(GLOB_RECURSE HEADER_FILES
+    ${CMAKE_SOURCE_DIR}/src/*.h)
+add_executable(${PROJECT_NAME} ${HEADER_FILES} ${SOURCE_FILES})
 
 # Link Libraries
-target_link_libraries(${PROJECT_NAME} ${SDL2_IMAGE_LIBRARIES} ${SDL2_LIBRARIES})
+target_link_libraries(${PROJECT_NAME} 
+  ${SDL2_IMAGE_LIBRARIES} 
+  ${SDL2_LIBRARIES}
+  ${Vulkan_LIBRARIES}
+  ${GLM_LIBRARY_DIRS}
+)
 
 # Compile Shaders
 add_custom_command(TARGET ${PROJECT_NAME}
-    PRE_BUILD
-    COMMAND ./compile_shaders.sh)
+  PRE_BUILD
+  COMMAND ./compile_shaders.sh
+)

src/main.c

@@ -1,5 +1,8 @@
-#include <SDL2/SDL.h>
+#include "vec.h"
+#include <SDL.h>
+#include <SDL_vulkan.h>
 #include <stdbool.h>
+#include <stdio.h>
 
 int main() {
   if (SDL_Init(SDL_INIT_VIDEO) < 0) {
@@ -7,16 +10,15 @@ int main() {
     return -1;
   }
 
-  SDL_Window *window = SDL_CreateWindow("SDL2 Window", SDL_WINDOWPOS_CENTERED,
-                                        SDL_WINDOWPOS_CENTERED, 680, 480, 0);
-
+  SDL_Window *window =
+      SDL_CreateWindow("SDL2 Window", SDL_WINDOWPOS_CENTERED,
+                       SDL_WINDOWPOS_CENTERED, 680, 480, SDL_WINDOW_VULKAN);
   if (!window) {
     printf("Failed to create window\n");
     return -1;
   }
 
   SDL_Surface *window_surface = SDL_GetWindowSurface(window);
-
   if (!window_surface) {
     printf("Failed to get the surface from the window\n");
     return -1;
@@ -24,10 +26,8 @@ int main() {
 
   bool running = true;
   while (running) {
-    // Create event handling struct
     SDL_Event input;
     while (SDL_PollEvent(&input) > 0) {
-      // Handle SDL quit event
       if (input.type == SDL_QUIT) {
         running = false;
       }

src/vec.c

@@ -0,0 +1,45 @@
+#include "vec.h"
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define DEFAULT_VECTOR_CAPACITY 4
+
+typedef struct vector {
+  size_t capacity;
+  size_t size;
+  size_t element_size;
+  void *elements;
+} vector;
+
+vector *vec_create(size_t element_size) {
+  vector *vec = malloc(sizeof(vector));
+  vec->element_size = element_size;
+  vec->capacity = DEFAULT_VECTOR_CAPACITY;
+  vec->elements = malloc(vec->capacity * vec->element_size);
+
+  return vec;
+};
+void vec_destroy(vector *vec) {
+  assert(vec != NULL);
+  free(vec->elements);
+  free(vec);
+}
+
+void vec_pushback(vector *vec, void *data) {
+  assert(vec != NULL);
+  vec_grow(vec);
+
+  memcpy(data, vec, vec->element_size);
+}
+
+void vec_grow(vector *vec) {
+  assert(vec != NULL);
+  if (vec->size < vec->capacity)
+    return;
+
+  // Grow the vector by half
+  vec->elements =
+      realloc(vec, vec->element_size * (vec->capacity + vec->capacity / 2));
+  assert(vec != NULL);
+}

src/vec.h

@@ -0,0 +1,14 @@
+#pragma once
+#include <stdlib.h>
+
+typedef struct vector vector;
+
+vector *vec_create(size_t element_size);
+void vec_destroy(vector *vec);
+
+// Checks and grows vector only if necessary
+void vec_grow(vector *vec);
+
+// Assumes data is the same size as the element size
+// Which means you can only push one element at a time
+void vec_pushback(vector *vec, void *data);