make use of std::array for heightmap data

fggl/data/heightmap.cpp

@@ -73,8 +73,9 @@ namespace fggl::data {
 
         // step 1: convert height data into vertex locations
         const int numElms = data::heightMaxX * data::heightMaxZ;
-        data::Vertex* locations = new data::Vertex[numElms];
+		std::array<data::Vertex, numElms> locations{};
 
+		// iterate the
         for (std::size_t x = 0; x < data::heightMaxX; x++) {
             for (std::size_t z = 0; z < data::heightMaxZ; z++) {
                 float level = heights->getValue(x, z);
@@ -86,7 +87,7 @@ namespace fggl::data {
                 locations[idx1].posititon = math::vec3(-0.5f + xPos, level, -0.5f - zPos);
             }
         }
-        gridVertexNormals(locations);
+        gridVertexNormals(locations.data());
 
         mesh.restartVertex = data::heightMaxZ * data::heightMaxX;
 
@@ -94,7 +95,6 @@ namespace fggl::data {
         for (auto i = 0; i < numElms; i++) {
             mesh.pushVertex(locations[i]);
         }
-        delete[] locations;
 
         for (std::size_t x = 0; x < data::heightMaxX - 1; x++) {
             for (std::size_t z = 0; z < data::heightMaxZ; z++) {