Added some transitions.

src/display/camera.h

@@ -17,6 +17,10 @@ typedef struct {
   matrix_t projection;
 } camera_t;
 
+typedef struct {
+  float x, y, z, lookX, lookY, lookZ;
+} cameralookat_t;
+
 /**
  * Make a camera look at a position in world space while itself being positioned
  * within world space.
@@ -34,6 +38,14 @@ void cameraLookAt(camera_t *camera,
   float targetX, float targetY, float targetZ
 );
 
+/**
+ * Shorthand for look at that uses the look struct.
+ * 
+ * @param camera Camera to position.
+ * @param look Look vectors.
+ */
+void cameraLookAtStruct(camera_t *camera, cameralookat_t look);
+
 /**
  * Make a camera look in a direction based on a rotation direction.
  *