Ground farm growth buckets in placed-structure saves

crates/rrt-runtime/src/smp.rs

@@ -1726,6 +1726,8 @@ pub struct SmpSavePlacedStructureRecordTripletEntryProbe {
     pub profile_payload_dword: u32,
     pub profile_payload_dword_hex: String,
     pub profile_sentinel_i32: i32,
+    pub profile_status_kind: String,
+    pub farm_growth_stage_index: Option<u8>,
     pub profile_close_marker: u32,
     pub profile_close_marker_hex: String,
 }
@@ -3287,7 +3289,7 @@ pub fn load_save_slice_from_report(
     }
     if let Some(probe) = &report.save_placed_structure_record_triplet_probe {
         notes.push(format!(
-            "Raw save tagged placed-structure records also expose {} repeated 0x55f1/0x55f2/0x55f3 triplets; first stems={:?}/{:?}, first policy lanes=({:.3}, {:.3}, {:.3}, {:.3}, {:.3}), first footer payload={}.",
+            "Raw save tagged placed-structure records also expose {} repeated 0x55f1/0x55f2/0x55f3 triplets; first stems={:?}/{:?}, first policy lanes=({:.3}, {:.3}, {:.3}, {:.3}, {:.3}), first footer payload={}, first footer status kind={:?}.",
             probe.record_count,
             probe.entries.first().map(|entry| entry.primary_name.as_str()),
             probe.entries.first().map(|entry| entry.secondary_name.as_str()),
@@ -3296,7 +3298,8 @@ pub fn load_save_slice_from_report(
             probe.entries.first().map(|entry| entry.policy_f32_lane_2).unwrap_or_default(),
             probe.entries.first().map(|entry| entry.policy_f32_lane_3).unwrap_or_default(),
             probe.entries.first().map(|entry| entry.policy_f32_lane_4).unwrap_or_default(),
-            probe.entries.first().map(|entry| entry.profile_payload_dword_hex.as_str()).unwrap_or("0x00000000")
+            probe.entries.first().map(|entry| entry.profile_payload_dword_hex.as_str()).unwrap_or("0x00000000"),
+            probe.entries.first().map(|entry| entry.profile_status_kind.as_str())
         ));
     }
     if let Some(roster) = &report.save_company_roster_probe {
@@ -3709,11 +3712,12 @@ pub fn inspect_save_company_and_chairman_analysis_bytes(
     }
     if let Some(triplets) = placed_structure_record_triplets.as_ref() {
         notes.push(format!(
-            "Placed-structure analysis now also exports {} tagged 0x55f1/0x55f2/0x55f3 record triplets; first stems={:?}/{:?}, first footer payload={}.",
+            "Placed-structure analysis now also exports {} tagged 0x55f1/0x55f2/0x55f3 record triplets; first stems={:?}/{:?}, first footer payload={}, first footer status kind={:?}.",
             triplets.record_count,
             triplets.entries.first().map(|entry| entry.primary_name.as_str()),
             triplets.entries.first().map(|entry| entry.secondary_name.as_str()),
-            triplets.entries.first().map(|entry| entry.profile_payload_dword_hex.as_str()).unwrap_or("0x00000000")
+            triplets.entries.first().map(|entry| entry.profile_payload_dword_hex.as_str()).unwrap_or("0x00000000"),
+            triplets.entries.first().map(|entry| entry.profile_status_kind.as_str())
         ));
     }
     if !company_entries.is_empty() {
@@ -10230,6 +10234,12 @@ fn parse_save_placed_structure_record_triplet_probe(
             }
         }
         let (profile_payload_dword, profile_sentinel_i32, profile_close_marker) = matched_footer?;
+        let (profile_status_kind, farm_growth_stage_index) =
+            derive_save_placed_structure_profile_status(
+                &primary_name,
+                &secondary_name,
+                profile_sentinel_i32,
+            );
         entries.push(SmpSavePlacedStructureRecordTripletEntryProbe {
             record_index: index,
             primary_name,
@@ -10254,10 +10264,16 @@ fn parse_save_placed_structure_record_triplet_probe(
             profile_payload_dword,
             profile_payload_dword_hex: format!("0x{profile_payload_dword:08x}"),
             profile_sentinel_i32,
+            profile_status_kind: profile_status_kind.to_string(),
+            farm_growth_stage_index,
             profile_close_marker,
             profile_close_marker_hex: format!("0x{profile_close_marker:08x}"),
         });
     }
+    let farm_growth_stage_entry_count = entries
+        .iter()
+        .filter(|entry| entry.farm_growth_stage_index.is_some())
+        .count();
     Some(SmpSavePlacedStructureRecordTripletProbe {
         profile_family: header_probe.profile_family.clone(),
         source_kind: "save-placed-structure-record-triplets".to_string(),
@@ -10270,10 +10286,28 @@ fn parse_save_placed_structure_record_triplet_probe(
             "save-side placed-structure records are serialized as repeated 0x55f1/0x55f2/0x55f3 triplets inside the tagged records span".to_string(),
             "the 0x55f1 chunk currently exposes two len-prefixed structure-name stems before the fixed 0x55f2 policy row".to_string(),
             "each fixed placed-structure 0x55f2 policy chunk currently decodes as five f32-like lanes, one reserved dword, and one trailing u16 word".to_string(),
+            format!(
+                "the compact 0x55f3 footer status lane behaves like a farm growth-stage bucket on grounded saves: {farm_growth_stage_entry_count} entries expose nonnegative 0..11 values and all observed non-farm families stay at -1"
+            ),
         ],
     })
 }
 
+fn derive_save_placed_structure_profile_status(
+    primary_name: &str,
+    secondary_name: &str,
+    raw_status: i32,
+) -> (&'static str, Option<u8>) {
+    let looks_like_farm = primary_name.starts_with("Farm") || secondary_name.contains("Farm");
+    if raw_status == -1 {
+        return ("unset", None);
+    }
+    if looks_like_farm && (0..=11).contains(&raw_status) {
+        return ("farm_growth_stage_bucket", Some(raw_status as u8));
+    }
+    ("opaque_nondefault", None)
+}
+
 fn parse_save_placed_structure_collection_header_probe(
     bytes: &[u8],
     file_extension_hint: Option<&str>,
@@ -17980,6 +18014,8 @@ mod tests {
             "0x0e373500"
         );
         assert_eq!(triplet_probe.entries[0].profile_sentinel_i32, -1);
+        assert_eq!(triplet_probe.entries[0].profile_status_kind, "unset");
+        assert_eq!(triplet_probe.entries[0].farm_growth_stage_index, None);
         assert_eq!(
             triplet_probe.entries[0].profile_close_marker_hex,
             "0x00005dc2"
@@ -17989,6 +18025,22 @@ mod tests {
         assert_eq!(triplet_probe.entries[1].policy_f32_lane_1, 1200.0);
     }
 
+    #[test]
+    fn derives_placed_structure_farm_growth_stage_from_nonnegative_status() {
+        assert_eq!(
+            derive_save_placed_structure_profile_status("FarmCorn", "FarmSet", 4),
+            ("farm_growth_stage_bucket", Some(4))
+        );
+        assert_eq!(
+            derive_save_placed_structure_profile_status("StationA", "StationSetA", -1),
+            ("unset", None)
+        );
+        assert_eq!(
+            derive_save_placed_structure_profile_status("StationA", "StationSetA", 4),
+            ("opaque_nondefault", None)
+        );
+    }
+
     #[test]
     fn parses_placed_structure_tagged_collection_header_probe_from_exact_u32_tags() {
         let mut bytes = vec![0u8; 0x400];

docs/rehost-queue.md

@@ -75,6 +75,10 @@ Working rule:
   triplets with dual name stems, a fixed five-`f32` policy row, and a compact `0x5dc1...0x5dc2`
   footer carrying one raw `u32` payload lane plus one live `i32` status lane, so the remaining
   placed-structure work is semantic closure of those owned fields rather than envelope discovery.
+- That compact placed-structure `i32` footer status lane is now partially grounded as owned
+  semantics too: observed non-farm families stay at `-1`, while farm families use nonnegative
+  `0..11` buckets that are now exported as farm growth-stage indices instead of opaque raw status
+  residue.
 - Stepped calendar progression now also refreshes save-world owner time fields, including packed
   year, packed tuple words, absolute counter, and the derived selected-year gap scalar.
 - Automatic year-rollover calendar stepping now invokes periodic-boundary service.