Add spectator text chat

Turns out custom radio channels are kind of a pain to work with. However this should work fine assuming the radioChannelAdd commands will work on client machines.

addons/spectator/XEH_postInit.sqf

@@ -9,5 +9,11 @@
     GVAR(availableVisions) = [[-2,-1,0,1], [-2,-1], [-2,0,1], [-2]] select GVAR(restrictVisions);
 }] call EFUNC(common,addEventHandler);
 
+// Create a radio channel for any spectators to text chat in
+if (isServer) then {
+    GVAR(channel) = radioChannelCreate [[0.729,0.149,0.098,1],"Spectator","Spectator (%UNIT_NAME)",[]];
+    publicVariable QGVAR(channel);
+};
+
 // Should prevent unending spectator on mission end
 addMissionEventHandler ["Ended",{ [false] call FUNC(setSpectator) }];

addons/spectator/functions/fnc_handleInterface.sqf

@@ -172,9 +172,12 @@ switch (toLower _mode) do {
             [QGVAR(zeus)] call FUNC(interrupt);
             ["zeus"] call FUNC(handleInterface);
         };
-        if ((isServer || {serverCommandAvailable "#kick"}) && {_dik in (actionKeys "Chat" + actionKeys "PrevChannel" + actionKeys "NextChannel")}) exitWith {
+        if (_dik in (actionKeys "Chat")) exitWith {
             false
         };
+        if (_dik in (actionKeys "PrevChannel" + actionKeys "NextChannel")) exitWith {
+            !(isServer || serverCommandAvailable "#kick")
+        };
 
         // Handle held keys (prevent repeat calling)
         if (GVAR(heldKeys) param [_dik,false]) exitwith {};

addons/spectator/functions/fnc_setSpectator.sqf

@@ -63,9 +63,17 @@ if (_set) then {
     GVAR(unitCamera) camCommit 0;
     [] call FUNC(transitionCamera);
 
-    // Close map and clear radio
+    // Cache current channel to switch back to on exit
+    GVAR(channelCache) = currentChannel;
+
+    // Channel index starts count after the 5 default channels
+    GVAR(channel) radioChannelAdd [player];
+    setCurrentChannel (5 + GVAR(channel));
+
+    // Close map and clear the chat
     openMap [false,false];
     clearRadio;
+    enableRadio false;
 
     // Disable BI damage effects
     BIS_fnc_feedback_allowPP = false;
@@ -111,7 +119,16 @@ if (_set) then {
     camDestroy GVAR(unitCamera);
     camDestroy GVAR(targetCamera);
 
+    // Remove from spectator chat
+    GVAR(channel) radioChannelRemove [player];
+
+    // Restore cached channel and delete cache
+    setCurrentChannel GVAR(channelCache);
+    GVAR(channelCache) = nil;
+
+    // Clear any residual spectator chat
     clearRadio;
+    enableRadio true;
 
     // Return to player view
     player switchCamera "internal";

addons/spectator/functions/fnc_transitionCamera.sqf

@@ -61,7 +61,6 @@ if (_newMode == 0) then { // Free
     };
 
     GVAR(camAgent) switchCamera "internal";
-    clearRadio;
 } else {
     _camera = GVAR(unitCamera);
 
@@ -87,11 +86,6 @@ if (_newMode == 0) then { // Free
         _camera cameraEffect ["internal", "back"];
     };
 
-    // Clear radio if group changed
-    if (group _newUnit != group GVAR(camUnit)) then {
-        clearRadio;
-    };
-
     GVAR(camUnit) = _newUnit;
 };