umadump/replay: start of race replay json decoding

umadump/replay/groundcondition_string.go

@@ -0,0 +1,27 @@
+// Code generated by "stringer -type GroundCondition -linecomment"; 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[GroundFirm-1]
+	_ = x[GroundGood-2]
+	_ = x[GroundSoft-3]
+	_ = x[GroundHeavy-4]
+}
+
+const _GroundCondition_name = "GoodSoftHardBad"
+
+var _GroundCondition_index = [...]uint8{0, 4, 8, 12, 15}
+
+func (i GroundCondition) String() string {
+	idx := int(i) - 1
+	if i < 1 || idx >= len(_GroundCondition_index)-1 {
+		return "GroundCondition(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _GroundCondition_name[_GroundCondition_index[idx]:_GroundCondition_index[idx+1]]
+}