Added a new hook: HOOK_ROLLCHECK

artifacts/scripting/headers/sfall.h

@@ -71,6 +71,7 @@
 #define HOOK_ENCOUNTER        (43)
 #define HOOK_ADJUSTPOISON     (44)
 #define HOOK_ADJUSTRADS       (45)
+#define HOOK_ROLLCHECK        (46)
 
 //Valid arguments to list_begin
 #define LIST_CRITTERS    (0)

artifacts/scripting/hookscripts.txt

@@ -718,3 +718,26 @@ Critter arg0 - the critter (usually dude_obj)
 int     arg1 - the amount of radiation being added/removed
 
 int     ret0 - the new amount of radiation being added/removed
+
+-------------------------------------------
+
+HOOK_ROLLCHECK (hs_rollcheck.int)
+
+Runs when a game event performs a random roll to check the chance of success or failure.
+
+int     arg0 - event type:
+               1 - checks the chance of an attack hitting the target
+               2 - checks the chance of a bullet from a burst hitting the target (for burst attacks)
+               3 - checks the chance when using skills (not listed below)
+               4 - check the chance of using Repair skill
+               5 - check the chance of using Doctor skill
+               6 - check the chance of using Steal skill for the thief
+               7 - the second Steal skill chance check for the target to catch the thief, in which the target's failure is the thief's success result
+int     arg1 - the value of roll result (see ROLL_* constants), which is calculated as:
+               for ROLL_CRITICAL_SUCCESS: random(1, 100) <= (random_chance / 10) + bonus
+               for ROLL_CRITICAL_FAILURE: random(1, 100) <= -random_chance / 10
+int     arg2 - the chance value
+int     arg3 - the bonus value, used when checking critical success
+int     arg4 - random chance (calculated as: chance - random(1, 100)), where a negative value is a failure check (ROLL_FAILURE)
+
+int     ret0 - overrides the roll result