Supress most warnings on rmodels.c (#2029)

* Supress most warnings on rmodels.c

NOTE: unused symbols have been deleted and the following report will show in what location they were previously.

Unused symbols:
- ArrayInt - vox_loader.h: line 84
- initArrayInt - vox_loader.h: line 168
- insertArrayInt - vox_loader.h: line 175
- freeArrayInt - vox_loader.h: line 186
- offsetX, offsetY, offsetZ - vox_loader.h: line 610
- chunkTotalChildSize - vox_loader.h: line 623

Other warnings:
- initialization discards 'const' qualifier - vox_loader.h: line 572
- incompatible types for VoxVector3 and Vector3 - rmodels.c: line 5748
- incompatible types for VoxColor and Color - rmodels: line 5749

* Remove ToVector3 and ToColor functions and assign values directly

src/external/vox_loader.h

@@ -42,6 +42,7 @@ revision history:
 						Removed Raylib dependencies
 						Changed Vox_LoadFileName to Vox_LoadFromMemory
     1.02  (2021-09-10)  @raysan5: Reviewed some formating
+    1.03  (2021-10-02)  @catmanl: Reduce warnings on gcc
 
 */
 
@@ -80,11 +81,6 @@ typedef struct {
     float x, y, z;
 } VoxVector3;
 
-typedef struct {
-    int* array;
-    int used, size;
-} ArrayInt;
-
 typedef struct {
     VoxVector3* array;
     int used, size;
@@ -142,7 +138,7 @@ extern "C" {            // Prevents name mangling of functions
 #endif
 
 // Functions
-int Vox_LoadFromMemory(const unsigned char* pvoxData, unsigned int voxDataSize, VoxArray3D* pvoxarray);
+int Vox_LoadFromMemory(unsigned char* pvoxData, unsigned int voxDataSize, VoxArray3D* pvoxarray);
 void Vox_FreeArrays(VoxArray3D* voxarray);
 
 #ifdef __cplusplus
@@ -161,35 +157,6 @@ void Vox_FreeArrays(VoxArray3D* voxarray);
 
 #ifdef VOX_LOADER_IMPLEMENTATION
 
-/////////////////////////////////////////////////////////////////////////////////////////////
-// ArrayInt helper
-/////////////////////////////////////////////////////////////////////////////////////////////
-
-static void initArrayInt(ArrayInt* a, int initialSize)
-{
-	a->array = VOX_MALLOC(initialSize * sizeof(int));
-	a->used = 0;
-	a->size = initialSize;
-}
-
-static void insertArrayInt(ArrayInt* a, int element)
-{
-	if (a->used == a->size)
-	{
-		a->size *= 2;
-		a->array = VOX_REALLOC(a->array, a->size * sizeof(int));
-	}
-    
-	a->array[a->used++] = element;
-}
-
-static void freeArrayInt(ArrayInt* a)
-{
-	VOX_FREE(a->array);
-	a->array = NULL;
-	a->used = a->size = 0;
-}
-
 /////////////////////////////////////////////////////////////////////////////////////////////
 // ArrayUShort helper
 /////////////////////////////////////////////////////////////////////////////////////////////
@@ -560,7 +527,7 @@ static void Vox_Build_Voxel(VoxArray3D* pvoxArray, int x, int y, int z, int matI
 }
 
 // MagicaVoxel *.vox file format Loader
-int Vox_LoadFromMemory(const unsigned char* pvoxData, unsigned int voxDataSize, VoxArray3D* pvoxarray)
+int Vox_LoadFromMemory(unsigned char* pvoxData, unsigned int voxDataSize, VoxArray3D* pvoxarray)
 {
 	//////////////////////////////////////////////////
 	//Read VOX file
@@ -607,8 +574,6 @@ int Vox_LoadFromMemory(const unsigned char* pvoxData, unsigned int voxDataSize,
 	unsigned long sizeX, sizeY, sizeZ;
 	sizeX = sizeY = sizeZ = 0;
 	unsigned long numVoxels = 0;
-	int offsetX, offsetY, offsetZ;
-	offsetX = offsetY = offsetZ = 0;
 
 	while (fileDataPtr < endfileDataPtr)
 	{
@@ -620,9 +585,6 @@ int Vox_LoadFromMemory(const unsigned char* pvoxData, unsigned int voxDataSize,
 		unsigned long chunkSize = *((unsigned long*)fileDataPtr);
 		fileDataPtr += sizeof(unsigned long);
 
-		unsigned long chunkTotalChildSize = *((unsigned long*)fileDataPtr);
-		fileDataPtr += sizeof(unsigned long);
-
 		if (strcmp(szChunkName, "SIZE") == 0)
 		{
 			//(4 bytes x 3 : x, y, z ) 

src/rmodels.c

@@ -5745,8 +5745,18 @@ static Model LoadVOX(const char *fileName)
     int verticesRemain = voxarray.vertices.used;
     int verticesMax = 65532; // 5461 voxels x 12 vertices per voxel -> 65532 (must be inf 65536)
 
-    Vector3 *pvertices = voxarray.vertices.array;        // 6*4 = 12 vertices per voxel
-    Color *pcolors = voxarray.colors.array;
+    // 6*4 = 12 vertices per voxel
+    Vector3 *pvertices = { 0 };
+    pvertices->x = voxarray.vertices.array->x;
+    pvertices->y = voxarray.vertices.array->y;
+    pvertices->z = voxarray.vertices.array->z;
+
+    Color *pcolors = { 0 };
+    pcolors->r = voxarray.colors.array->r;
+    pcolors->g = voxarray.colors.array->g;
+    pcolors->b = voxarray.colors.array->b;
+    pcolors->a = voxarray.colors.array->a;
+ 
     unsigned short *pindices = voxarray.indices.array;    // 5461*6*6 = 196596 indices max per mesh
 
     int size = 0;