3 files changed, 24 insertions, 6 deletions
diff --git a/src/core.c b/src/core.c
index 0cbaa09..e1ffeab 100644
--- a/src/core.c
+++ b/src/core.c
@@ -27,16 +27,21 @@ void core_bringup(const char* window_name, struct GLFWwindow* optional_window) {
   glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
 
   char* full_window_name = malloc(sizeof(char) * 100);
-  int _offset = sprintf(full_window_name, "%s (%s)", window_name, gapi);
+  sprintf(full_window_name, "%s (%s)", window_name, gapi);
+
+  if (optional_window) {
+    g_core.window = optional_window;
+  } else {
+    GLFWwindow* glfw_window = glfwCreateWindow(800, 600, full_window_name, NULL, NULL);
+    g_core.window = glfw_window;
+  }
 
-  GLFWwindow* glfw_window = glfwCreateWindow(800, 600, full_window_name, NULL, NULL);
-  g_core.window = glfw_window;
 
   // This may move into a renderer struct
-  ral_backend_init(window_name, glfw_window);
+  ral_backend_init(window_name, g_core.window);
 
-  glfwSetKeyCallback(glfw_window, key_callback);
-  glfwSetFramebufferSizeCallback(glfw_window, resize_callback);
+  glfwSetKeyCallback(g_core.window, key_callback);
+  glfwSetFramebufferSizeCallback(g_core.window, resize_callback);
 }
 void core_shutdown() {
   ral_backend_shutdown();
diff --git a/src/debug_strings.c b/src/debug_strings.c
new file mode 100644
index 0000000..b1e09aa
--- /dev/null
+++ b/src/debug_strings.c
@@ -0,0 +1,5 @@
+#include <celeritas.h>
+
+const char* keyframe_kind_strings[4] = { "ROTATION", "TRANSLATION", "SCALE", "WEIGHTS" };
+
+const char* interpolation_strings[3] = { "Step", "Linear", "Cubic" };
+\ No newline at end of file
diff --git a/src/maths.c b/src/maths.c
index fbfcd72..10fa9e0 100644
--- a/src/maths.c
+++ b/src/maths.c
@@ -2,6 +2,10 @@
 
 vec3 vec3_create(f32 x, f32 y, f32 z) { return (vec3){ x, y, z }; }
 
+vec3 vec3_add(vec3 u, vec3 v) {
+  return (vec3){ .x = u.x + v.x, .y = u.y + v.y, .z = u.z + v.z };
+}
+
 vec4 vec4_create(f32 x, f32 y, f32 z, f32 w) { return (vec4){ x, y, z, w }; }
 
 mat4 mat4_ident() { return (mat4){ .data = { 1.0, 0., 0., 0., 0., 1., 0., 0., 0., 0., 1., 0., 0., 0., 0., 1.0 } }; }
@@ -35,3 +39,7 @@ mat4 mat4_perspective(f32 fov_radians, f32 aspect_ratio, f32 near_z, f32 far_z)
   out_matrix.data[14] = -((2.0f * far_z * near_z) / (far_z - near_z));
   return out_matrix;
 }
+
+mat4 mat4_look_at(vec3 position, vec3 target, vec3 up) {
+  // TODO
+}
+\ No newline at end of file