Add Inaccuracy to RocketTypes

CREDITS.md

@@ -163,6 +163,7 @@ This page lists all the individual contributions to the project by their author.
   - Implement the Torpedo logic from Red Alert 1 for BulletTypes.
   - Add `BuildTimeCost`.
   - Allow scenarios to have custom score screen bar colors.
+  - Add `Inaccuracy` to RocketTypes.
 - **secsome**:
   - Add support for up to 32767 waypoints to be used in scenarios.
 - **ZivDero**:

docs/New-Features-and-Enhancements.md

@@ -532,6 +532,7 @@ Warhead=                ; WarheadType, the warhead that this rocket's explosion
 EliteWarhead=           ; WarheadType, the warhead that this rocket's explosion uses when the spawner is elite.
 TakeoffAnim=            ; AnimType, the takeoff animation used by this rocket.
 TrailAnim=              ; AnimType, the trail animation used by this rocket.
+Inaccuracy=             ; integer, the maximum number of leptons that this rocket is able to miss its target by.
 ```
 
 ```{note}

src/new/locomotion/rocketlocomotion.cpp

@@ -508,7 +508,18 @@ IFACEMETHODIMP_(void) RocketLocomotionClass::Move_To(Coordinate to)
 
         MissionTimer = timer_delay;
         CurrentPitch = rocket->PitchInitial * DEG_TO_RAD(90);
-        DestinationCoord = to;
+
+        /**
+         *  Apply some inaccuracy to the coordinate if the rocket type specifies so.
+         */
+        if (rocket->Inaccuracy <= 0) {
+            DestinationCoord = to;
+        }
+        else {
+            const int randomx = Random_Pick(-rocket->Inaccuracy, rocket->Inaccuracy);
+            const int randomy = Random_Pick(-rocket->Inaccuracy, rocket->Inaccuracy);
+            DestinationCoord = to + Coordinate(randomx, randomy, 0);
+        }
     }
 }
 

src/new/rockettype/rockettype.cpp

@@ -68,7 +68,8 @@ RocketTypeClass::RocketTypeClass(const char* name) :
     CloseEnoughFactor(1.0),
     Type(nullptr),
     Warhead(nullptr),
-    EliteWarhead(nullptr)
+    EliteWarhead(nullptr),
+    Inaccuracy(0)
 {
     ASSERT_FATAL_PRINT(name != nullptr, "Invalid name for RocketType!");
 
@@ -397,6 +398,7 @@ bool RocketTypeClass::Read_INI(CCINIClass& ini)
     EliteWarhead = ini.Get_Warhead(IniName, "EliteWarhead", EliteWarhead);
     TakeoffAnim = ini.Get_Anim(IniName, "TakeoffAnim", TakeoffAnim);
     TrailAnim = ini.Get_Anim(IniName, "TrailAnim", TrailAnim);
+    Inaccuracy = ini.Get_Int(IniName, "Inaccuracy", Inaccuracy);
 
     return true;
 }

src/new/rockettype/rockettype.h

@@ -171,4 +171,9 @@ RocketTypeClass final : IPersistStream
      */
     const AnimTypeClass* TakeoffAnim;
     const AnimTypeClass* TrailAnim;
+
+    /**
+     *  The maximum number of leptons that this rocket is able to miss its target by.
+     */
+    int Inaccuracy;
 };