typedef struct SOILDATA
{
var pos_x;
var pos_y;
var pos_z;
var height;
ENTITY *mesh;
} SOILDATA;
SOILDATA soilData[GRID_SIZE][GRID_SIZE];
...
SOILDATA *soilTemp = &soilData[coorX][coorY];
ENTITY *entity = ent_create ( "soil.hmp", soilTemp.pos_x, NULL );
soilTemp.mesh = entity;
entity.skill1 = (SOILDATA*)soilTemp;
...
SOILDATA *entSoilData = (SOILDATA*)actualSoilEntity.skill1;