Update readme and add a diagnostic message for users.

JadingTsunami · Nov 3, 2023 · c1e3ea1 · c1e3ea1
1 parent f5cfec4
commit c1e3ea1
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/README.md b/README.md
@@ -87,8 +87,8 @@ Install [PrBoom-Plus](https://github.com/coelckers/prboom-plus) and place the bi
 - `complevel N` (change compatibility level to N where N is 0-17)
 - `switchweapon N` (switch weapon to N where N 0-8 or weapon name)
 - `am_warpto` (warp/teleport to automap crosshair position)
-- `am_summon` (summon enemy/thing/etc. to automap crosshair position)
-- `am_summonfriend` (summon friendly enemy/thing/etc. to automap crosshair position)
+- `am_summon <class>` (summon enemy/thing/etc. to automap crosshair position)
+- `am_summonfriend <class>` (summon friendly enemy/thing/etc. to automap crosshair position)
 
 # Bindable Special Key Names
 

diff --git a/prboom2/src/c_cmd.c b/prboom2/src/c_cmd.c
@@ -774,8 +774,10 @@ static void C_internal_summon(char* cmd, dboolean friendly)
 
     cmd = C_StripSpaces(cmd);
 
-    if (!cmd)
+    if (!cmd) {
+        doom_printf("Specify an actor type to summon.");
         return;
+    }
 
     for (i=0; ActorNames[i]; i++)
         if (strcasecmp(cmd,ActorNames[i]) == 0)