Removing useless variable.

game/terrain.cc

@@ -30,7 +30,6 @@ void Terrain::load() {
         }
     }
     this->makeTriangleMesh(0, 0, heightmapHeight, heightmapWidth);
-    heightmapChanged = false; //no need to make a TriangleMesh again before rendering
 }
 
 void Terrain::makeTriangleMesh(int startX, int startZ, int endX, int endZ) {

game/terrain.hh

@@ -22,7 +22,6 @@ class Terrain {
         std::string heightmapFilePath;
         int heightmapHeight, heightmapWidth;
         float** heightmap; //can be accessed like 'float[][]'
-        bool heightmapChanged;
         ACGL::OpenGL::SharedVertexArrayObject triangleMesh;
         void set_abData(float* abData, int dataCount, int rowNum, int columnNum);
 };