Burst projectile retargeting

CREDITS.md

@@ -134,6 +134,7 @@ This page lists all the individual contributions to the project by their author.
   - Customizable FLH when infantry is prone or deployed
   - Initial strength for cloned infantry
   - Map Events 604 & 605 for checking if a specific Techno enters in a cell
+  - `RandomTarget` for random projectile retargeting
 - **Starkku**:
   - Misc. minor bugfixes & improvements
   - AI script actions:

Phobos.vcxproj

@@ -18,6 +18,8 @@
     </ProjectConfiguration>
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="src\Ext\Techno\Body.RandomTarget.cpp" />
+    <ClCompile Include="src\Ext\Techno\Hooks.RandomTarget.cpp" />
     <ClCompile Include="src\New\Entity\AttachEffectClass.cpp" />
     <ClCompile Include="src\New\Type\AttachEffectTypeClass.cpp" />
     <ClCompile Include="src\Commands\Commands.cpp" />
@@ -93,6 +95,7 @@
     <ClCompile Include="src\Ext\Bullet\Body.cpp" />
     <ClCompile Include="src\Ext\Bullet\Hooks.cpp" />
     <ClCompile Include="src\Ext\Bullet\Hooks.Obstacles.cpp" />
+    <ClCompile Include="src\Ext\Event\Body.cpp" />
     <ClCompile Include="src\Ext\House\Body.cpp" />
     <ClCompile Include="src\Ext\House\Hooks.cpp" />
     <ClCompile Include="src\Ext\House\Hooks.AINavalProduction.cpp" />
@@ -200,6 +203,7 @@
     <ClInclude Include="src\Ext\Bullet\Trajectories\BombardTrajectory.h" />
     <ClInclude Include="src\Ext\Bullet\Trajectories\PhobosTrajectory.h" />
     <ClInclude Include="src\Ext\Bullet\Trajectories\StraightTrajectory.h" />
+    <ClInclude Include="src\Ext\Event\Body.h" />
     <ClInclude Include="src\Ext\OverlayType\Body.h" />
     <ClInclude Include="src\Ext\ParticleType\Body.h" />
     <ClInclude Include="src\Ext\Sidebar\Body.h" />

docs/New-or-Enhanced-Logics.md

@@ -1692,6 +1692,22 @@ ExtraWarheads.DetonationChances=  ; list of floating-point values (percentage or
 ExtraWarheads.FullDetonation=     ; list of booleans
 ```
 
+### Projectile's random target
+- The firer will pick targets randomly.
+- Works with missiles (no splits, airbusts, etc), cannons, lasers & spawners.
+- A valid techno is required for trigger the logic.
+- `OmniFire=yes` will make selectable any targets around the firer, limited by the weapon range.
+- `OmniFire=no` will force the firer to pick targets in an area composed by the firer's weapon range around the original target intersected with the firer's weapon range around the firer.
+- `RandomTarget.Spawners.MultipleTargets=true` gives each spawner it's own target.
+- This logic should be used only in one weapon of the object.
+
+In `rulesmd.ini`:
+```ini
+[SOMEWEAPON]                                ; WeaponType
+RandomTarget=0.0                            ; double or percentage
+RandomTarget.Spawners.MultipleTargets=false ; boolean
+```
+
 ### Feedback weapon
 
 ![image](_static/images/feedbackweapon.gif)

docs/Whats-New.md

@@ -386,6 +386,7 @@ New:
 - Customizable straight trajectory detonation & snap distance and pass-through option (by Starkku)
 - Airstrike & spy plane fixed spawn distance & height (by Starkku)
 - Allow enabling application of `Verses` and `PercentAtMax` for negative damage (by Starkku)
+- `RandomTarget` for assigning a new target in each projectile (by FS-21)
 - In addition to `PlacementGrid.Translucency`, allow to set the transparency of the grid when PlacementPreview is enabled, using the `PlacementGrid.TranslucencyWithPreview` tag (by Belonit).
 - Show briefing screen on singleplayer mission start (by Starkku)
 - Allow setting mission par times and related messages in `missionmd.ini` (by Starkku)

src/Ext/Event/Body.cpp

@@ -1,6 +1,7 @@
-/*
 #include "Body.h"
 
+#include <Ext/Techno/Body.h>
+
 #include <Helpers/Macro.h>
 #include <EventClass.h>
 
@@ -13,8 +14,8 @@ void EventExt::RespondEvent()
 {
 	switch (this->Type)
 	{
-	case EventTypeExt::Sample:
-		// Place the handler here
+	case EventTypeExt::SyncStopRandomTargetTarNav:
+		TechnoExt::HandleStopRandomTargetTarNav(this);
 		break;
 	}
 }
@@ -23,8 +24,8 @@ size_t EventExt::GetDataSize(EventTypeExt type)
 {
 	switch (type)
 	{
-	case EventTypeExt::Sample:
-		return sizeof(EventExt::Sample);
+	case EventTypeExt::SyncStopRandomTargetTarNav:
+		return sizeof(EventExt::SyncStopRandomTargetTarNav);
 	}
 
 	return 0;
@@ -98,4 +99,3 @@ DEFINE_HOOK(0x64C30E, sub_64BDD0_GetEventSize2, 0x6)
 
 	return 0;
 }
-*/

src/Ext/Event/Body.h

@@ -1,18 +1,19 @@
 #pragma once
-/*
 #include <cstddef>
 #include <stdint.h>
+#include <TechnoClass.h>
+#include <FootClass.h>
 
 enum class EventTypeExt : uint8_t
 {
 	// Vanilla game used Events from 0x00 to 0x2F
 	// CnCNet reserved Events from 0x30 to 0x3F
 	// Ares used Events 0x60 and 0x61
 
-	Sample = 0x40, // Sample event, remove it when Phobos needs its own events
+	SyncStopRandomTargetTarNav = 0x49,
 
-	FIRST = Sample,
-	LAST = Sample
+	FIRST = SyncStopRandomTargetTarNav,
+	LAST = SyncStopRandomTargetTarNav
 };
 
 #pragma pack(push, 1)
@@ -27,10 +28,10 @@ class EventExt
 	{
 		char DataBuffer[104];
 
-		struct Sample
+		struct SyncStopRandomTargetTarNav
 		{
-			char DataBuffer[104];
-		} Sample;
+			int TechnoUniqueID;
+		} SyncStopRandomTargetTarNav;
 	};
 
 	bool AddEvent();
@@ -43,4 +44,3 @@ class EventExt
 static_assert(sizeof(EventExt) == 111);
 static_assert(offsetof(EventExt, DataBuffer) == 7);
 #pragma pack(pop)
-*/

src/Ext/Script/Body.cpp

@@ -419,7 +419,7 @@ void ScriptExt::Mission_Gather_NearTheLeader(TeamClass* pTeam, int countdown = -
 		// Find the Leader
 		pLeaderUnit = pExt->TeamLeader;
 
-		if (!IsUnitAvailable(pLeaderUnit, true))
+		if (!ScriptExt::IsUnitAvailable(pLeaderUnit, true))
 		{
 			pLeaderUnit = FindTheTeamLeader(pTeam);
 			pExt->TeamLeader = pLeaderUnit;
@@ -454,7 +454,7 @@ void ScriptExt::Mission_Gather_NearTheLeader(TeamClass* pTeam, int countdown = -
 		// Check if units are around the leader
 		for (auto pUnit = pTeam->FirstUnit; pUnit; pUnit = pUnit->NextTeamMember)
 		{
-			if (!IsUnitAvailable(pUnit, true))
+			if (!ScriptExt::IsUnitAvailable(pUnit, true))
 			{
 				auto pTypeUnit = pUnit->GetTechnoType();
 
@@ -753,7 +753,7 @@ bool ScriptExt::MoveMissionEndStatus(TeamClass* pTeam, TechnoClass* pFocus, Foot
 	// Team already have a focused target
 	for (auto pUnit = pTeam->FirstUnit; pUnit; pUnit = pUnit->NextTeamMember)
 	{
-		if (IsUnitAvailable(pUnit, true)
+		if (ScriptExt::IsUnitAvailable(pUnit, true)
 			&& !pUnit->TemporalTargetingMe
 			&& !pUnit->BeingWarpedOut)
 		{
@@ -1085,7 +1085,7 @@ FootClass* ScriptExt::FindTheTeamLeader(TeamClass* pTeam)
 	// Find the Leader or promote a new one
 	for (auto pUnit = pTeam->FirstUnit; pUnit; pUnit = pUnit->NextTeamMember)
 	{
-		if (!IsUnitAvailable(pUnit, true) || !(pUnit->IsInitiated || pUnit->WhatAmI() == AbstractType::Aircraft))
+		if (!ScriptExt::IsUnitAvailable(pUnit, true) || !(pUnit->IsInitiated || pUnit->WhatAmI() == AbstractType::Aircraft))
 			continue;
 
 		// The team Leader will be used for selecting targets, if there are living Team Members then always exists 1 Leader.

src/Ext/Script/Mission.Attack.cpp

@@ -61,7 +61,7 @@ void ScriptExt::Mission_Attack(TeamClass* pTeam, bool repeatAction = true, int c
 
 	pFocus = abstract_cast<TechnoClass*>(pTeam->Focus);
 
-	if (!IsUnitAvailable(pFocus, true))
+	if (!ScriptExt::IsUnitAvailable(pFocus, true))
 	{
 		pTeam->Focus = nullptr;
 		pFocus = nullptr;
@@ -115,7 +115,7 @@ void ScriptExt::Mission_Attack(TeamClass* pTeam, bool repeatAction = true, int c
 
 	for (auto pFoot = pTeam->FirstUnit; pFoot; pFoot = pFoot->NextTeamMember)
 	{
-		if (IsUnitAvailable(pFoot, true))
+		if (ScriptExt::IsUnitAvailable(pFoot, true))
 		{
 			auto const pTechnoType = pFoot->GetTechnoType();
 
@@ -143,7 +143,7 @@ void ScriptExt::Mission_Attack(TeamClass* pTeam, bool repeatAction = true, int c
 	// Find the Leader
 	pLeaderUnit = pTeamData->TeamLeader;
 
-	if (!IsUnitAvailable(pLeaderUnit, true))
+	if (!ScriptExt::IsUnitAvailable(pLeaderUnit, true))
 	{
 		pLeaderUnit = FindTheTeamLeader(pTeam);
 		pTeamData->TeamLeader = pLeaderUnit;
@@ -299,7 +299,7 @@ void ScriptExt::Mission_Attack(TeamClass* pTeam, bool repeatAction = true, int c
 		bool isAirOK = pFocus->IsInAir() && leaderWeaponsHaveAA;
 		bool isGroundOK = !pFocus->IsInAir() && leaderWeaponsHaveAG;
 
-		if (IsUnitAvailable(pFocus, true)
+		if (ScriptExt::IsUnitAvailable(pFocus, true)
 			&& !pFocus->GetTechnoType()->Immune
 			&& (isAirOK || isGroundOK)
 			&& (!pLeaderUnit->Owner->IsAlliedWith(pFocus) || IsUnitMindControlledFriendly(pLeaderUnit->Owner, pFocus)))
@@ -310,7 +310,7 @@ void ScriptExt::Mission_Attack(TeamClass* pTeam, bool repeatAction = true, int c
 			{
 				auto const pTechnoType = pFoot->GetTechnoType();
 
-				if (IsUnitAvailable(pFoot, true))
+				if (ScriptExt::IsUnitAvailable(pFoot, true))
 				{
 					// Aircraft case 1
 					if ((pFoot->WhatAmI() == AbstractType::Aircraft
@@ -486,7 +486,7 @@ TechnoClass* ScriptExt::GreatestThreat(TechnoClass* pTechno, int method, int cal
 			continue;
 
 		if (object != pTechno
-			&& IsUnitAvailable(object, true)
+			&& ScriptExt::IsUnitAvailable(object, true)
 			&& !objectType->Immune
 			&& !object->TemporalTargetingMe
 			&& !object->BeingWarpedOut
@@ -1168,7 +1168,7 @@ void ScriptExt::Mission_Attack_List1Random(TeamClass* pTeam, bool repeatAction,
 					auto const pFirstUnit = pTeam->FirstUnit;
 
 					if (pTechnoType == objectFromList
-						&& IsUnitAvailable(pTechno, true)
+						&& ScriptExt::IsUnitAvailable(pTechno, true)
 						&& (!pFirstUnit->Owner->IsAlliedWith(pTechno) || IsUnitMindControlledFriendly(pFirstUnit->Owner, pTechno)))
 					{
 						validIndexes.push_back(j);

src/Ext/Script/Mission.Move.cpp

@@ -73,7 +73,7 @@ void ScriptExt::Mission_Move(TeamClass* pTeam, int calcThreatMode = 0, bool pick
 	// Find the Leader
 	pLeaderUnit = pTeamData->TeamLeader;
 
-	if (!IsUnitAvailable(pLeaderUnit, true))
+	if (!ScriptExt::IsUnitAvailable(pLeaderUnit, true))
 	{
 		pLeaderUnit = FindTheTeamLeader(pTeam);
 		pTeamData->TeamLeader = pLeaderUnit;
@@ -125,7 +125,7 @@ void ScriptExt::Mission_Move(TeamClass* pTeam, int calcThreatMode = 0, bool pick
 
 				auto const pTechnoType = pFoot->GetTechnoType();
 
-				if (IsUnitAvailable(pFoot, true))
+				if (ScriptExt::IsUnitAvailable(pFoot, true))
 				{
 					if (pTechnoType->Underwater && pTechnoType->LandTargeting == LandTargetingType::Land_Not_OK && selectedTarget->GetCell()->LandType != LandType::Water) // Land not OK for the Naval unit
 					{
@@ -264,7 +264,7 @@ TechnoClass* ScriptExt::FindBestObject(TechnoClass* pTechno, int method, int cal
 		}
 
 		if (object != pTechno
-			&& IsUnitAvailable(object, true)
+			&& ScriptExt::IsUnitAvailable(object, true)
 			&& ((pickAllies && pTechno->Owner->IsAlliedWith(object))
 				|| (!pickAllies && !pTechno->Owner->IsAlliedWith(object))))
 		{
@@ -407,7 +407,7 @@ void ScriptExt::Mission_Move_List1Random(TeamClass* pTeam, int calcThreatMode, b
 					auto objectFromList = objectsList[j];
 
 					if (pTechnoType == objectFromList
-						&& IsUnitAvailable(pTechno, true)
+						&& ScriptExt::IsUnitAvailable(pTechno, true)
 						&& ((pickAllies
 							&& pTeam->FirstUnit->Owner->IsAlliedWith(pTechno))
 							|| (!pickAllies