added skybox and multitexture feature in .obj

src/engine/include/models/obj_model.hpp

@@ -15,28 +15,35 @@
 #include <math3d.h>
 #include "math/vector3.hpp"
 
+struct ObjMaterial
+{
+    char *materialName;
+    u32 facesCount;
+    u32 *verticeFaces, *coordinateFaces, *normalFaces;
+};
+
 /** Class which have common types for all 3D objects */
 class ObjModel
 {
 
 public:
-    u32 verticesCount, coordinatesCount, normalsCount, facesCount;
+    u32 verticesCount, coordinatesCount, normalsCount, materialsCount;
     Vector3 *vertices __attribute__((aligned(16))),
         *coordinates __attribute__((aligned(16))),
         *normals __attribute__((aligned(16)));
-    u32 *verticeFaces, *coordinateFaces, *normalFaces;
 
     /** File name without extension */
     char *filename;
+    ObjMaterial *materials;
 
     ObjModel(char *t_objFile);
     ~ObjModel();
-    u32 getDrawData(VECTOR *o_vertices, VECTOR *o_normals, VECTOR *o_coordinates, VECTOR *o_colors, Vector3 &t_cameraPos, float t_scale, u8 t_shouldBeBackfaceCulled);
-    void allocateMemory();
+    u32 getDrawData(u32 t_materialIndex, VECTOR *o_vertices, VECTOR *o_normals, VECTOR *o_coordinates, VECTOR *o_colors, Vector3 &t_cameraPos, float t_scale, u8 t_shouldBeBackfaceCulled);
+    u32 getFacesCount();
+    u8 isMemoryAllocated;
 
 private:
-    void fillNextFace(VECTOR *o_vertices, VECTOR *o_normals, VECTOR *o_coordinates, VECTOR *o_colors, u32 t_getI, u32 t_setI);
-    u8 isMemoryAllocated;
+    void fillNextFace(VECTOR *o_vertices, VECTOR *o_normals, VECTOR *o_coordinates, VECTOR *o_colors, u32 t_materialI, u32 t_getI, u32 t_setI);
 };
 
 #endif