-spritesheet_statement:
-NAME D HEIGHT WIDTH PATH {insert_framesheet($1, $2, $3, $4, 0, $5);};
-| NAME D PATH {insert_framesheet($1, $2, 0, 0, 0, $3);};
-| NAME HEIGHT WIDTH PATH {insert_framesheet($1, 0, $2, $3, 0, $4);};
-| NAME PATH {insert_framesheet($1, 0, 0, 0, 0, $2);};
-| NAME D HEIGHT WIDTH ref_id PATH {insert_framesheet($1, $2, $3, $4, $5, $6);};
-| NAME D ref_id PATH {insert_framesheet($1, $2, 0, 0, $3, $4);};
-| NAME HEIGHT WIDTH ref_id PATH {insert_framesheet($1, 0, $2, $3, $4, $5);};
-| NAME ref_id PATH {insert_framesheet($1, 0, 0, 0, $2, $3);};
-;