Working data structure, optimal seed

encode.go

@@ -6,15 +6,15 @@ import (
 	"github.com/icza/bitio"
 	"github.com/samber/lo"
 	"github.com/securemesh/coding/codes"
-	"github.com/securemesh/coding/heap"
+	"github.com/securemesh/coding/state"
 )
 
-func Encode(h *heap.Heap, msg []byte) []byte {
+func Encode(st *state.State, msg []byte) []byte {
 	buf := &bytes.Buffer{}
 	w := bitio.NewWriter(buf)
 
 	for _, b := range msg {
-		index := h.IncrementSymbol(b)
+		index := st.IncrementSymbol(b)
 		code := codes.CodeForIndex(index)
 		lo.Must0(w.WriteBits(uint64(code.Value), uint8(code.Bits)))
 	}