umadump/replay: start of race replay json decoding

umadump/replay/racedifficulty_string.go

@@ -0,0 +1,29 @@
+// Code generated by "stringer -type RaceDifficulty -trimprefix Difficulty"; DO NOT EDIT.
+
+package replay
+
+import "strconv"
+
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[DifficultyEasy-1]
+	_ = x[DifficultyNormal-2]
+	_ = x[DifficultyHard-3]
+	_ = x[DifficultyVeryHard-4]
+	_ = x[DifficultyExtreme-5]
+	_ = x[difficultyMax-6]
+}
+
+const _RaceDifficulty_name = "EasyNormalHardVeryHardExtremedifficultyMax"
+
+var _RaceDifficulty_index = [...]uint8{0, 4, 10, 14, 22, 29, 42}
+
+func (i RaceDifficulty) String() string {
+	idx := int(i) - 1
+	if i < 1 || idx >= len(_RaceDifficulty_index)-1 {
+		return "RaceDifficulty(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _RaceDifficulty_name[_RaceDifficulty_index[idx]:_RaceDifficulty_index[idx+1]]
+}