From e923dc2c42b6957366ccdb8f49d92cc8498f6863 Mon Sep 17 00:00:00 2001
From: Mark Allyn <allyn@well.com>
Date: Wed, 10 Jun 2026 09:14:19 -0700
Subject: [PATCH] Made corrections to radar managment to add testing

---
 global_data.cpp                        | 22 ++++++++++++++++
 include/data_structure_and_constants.h | 36 ++++++++++++++++++++++++++
 2 files changed, 58 insertions(+)

diff --git a/global_data.cpp b/global_data.cpp
index e0696ce..8c7aa19 100644
--- a/global_data.cpp
+++ b/global_data.cpp
@@ -32,6 +32,28 @@
 
 #include "include/data_structure_and_constants.h"
 
+/* ============================================================
+ * RADAR MANAGEMENT
+ * Components: Thread 1 (startup, scope switching), Traffic Cop (Thread 2)
+ * ============================================================ */
+
+/* radar_management[] is indexed by RADAR_* constants (1-4).
+ * Slot 0 is unused padding so current_radar works as a direct index.
+ * All fields start at 0. Set testing=1 when a radar component is under
+ * active development; set operatable=1 when it is built and tested.
+ * available and selected are set during startup argument parsing. */
+radar_management_structure radar_management[RADAR_COUNT] = {
+    { 0, 0, 0, 0 }, // [0] unused
+    { 0, 0, 0, 0 }, // [1] chain_home       — not yet built
+    { 0, 0, 0, 0 }, // [2] marine_ascope    — not yet built
+    { 0, 0, 0, 0 }, // [3] marine_traffic   — not yet built
+    { 0, 0, 0, 0 }, // [4] police_boat      — not yet built
+};
+
+// No radar selected on startup; intro screen is displayed.
+// Components: Thread 1, Traffic Cop (Thread 2), all scope renderers
+int current_radar = RADAR_NONE;
+
 /* ============================================================
  * THREAD MUTEXES
  * Components: all threads as noted per mutex
diff --git a/include/data_structure_and_constants.h b/include/data_structure_and_constants.h
index 779893f..16fc18d 100644
--- a/include/data_structure_and_constants.h
+++ b/include/data_structure_and_constants.h
@@ -102,6 +102,42 @@ struct target_data_to_thread_1_structure {
     uint32_t mmsi;
 };
 
+/* ============================================================
+ * RADAR MANAGEMENT
+ * Components: Thread 1 (startup, scope switching), Traffic Cop (Thread 2)
+ * ============================================================ */
+
+/* Index constants for radar_management[] and current_radar.
+ * Array slot 0 (RADAR_NONE) is unused padding so current_radar
+ * can be used as a direct index into radar_management[]. */
+constexpr int RADAR_NONE           = 0;
+constexpr int RADAR_CHAIN_HOME     = 1;
+constexpr int RADAR_MARINE_ASCOPE  = 2;
+constexpr int RADAR_MARINE_TRAFFIC = 3;
+constexpr int RADAR_POLICE_BOAT    = 4;
+constexpr int RADAR_COUNT          = 5; // valid indices: 1-4; 0 is unused
+
+/* Per-radar operational state.
+ * Indexed by RADAR_* constants above; slot 0 is unused.
+ * Components: Thread 1 (startup init, scope switching),
+ *             Traffic Cop (Thread 2, range filtering) */
+struct radar_management_structure {
+    int testing;    // 1 = radar component is under development/testing, 0 = not in testing
+    int operatable; // 1 = radar is built and fully functional, 0 = not yet built
+    int available;  // 1 = enabled by exhibit operator at startup, 0 = disabled
+    int selected;   // 1 = currently active/displayed, 0 = not active
+};
+
+// Array of radar states, indexed by RADAR_* constants.
+// radar_management[0] is unused padding.
+// Components: Thread 1, Traffic Cop (Thread 2)
+extern radar_management_structure radar_management[RADAR_COUNT];
+
+// Index of the currently active radar (RADAR_NONE through RADAR_POLICE_BOAT).
+// 0 means no radar selected (e.g. intro screen).
+// Components: Thread 1, Traffic Cop (Thread 2), all scope renderers
+extern int current_radar;
+
 /* ============================================================
  * THREAD MUTEXES
  * Defined in global_data.cpp; extern declared here.