[Dehardcode]Enable waypoint for buildings (#1343)

### Waypoint for buildings

In `rulesmd.ini`:
```ini
[General]
BuildingWaypoint = false    ; boolean
```

CREDITS.md

@@ -402,6 +402,7 @@ This page lists all the individual contributions to the project by their author.
   - Skip anim delay for burst fire
   - Type select for buildings (code)
   - Raise alert when technos are taking damage
+  - Toggle waypoint for building
 - **tyuah8** - Drive/Jumpjet/Ship/Teleport locomotor did not power on when it is un-piggybacked bugfix
 - **Aephiex** - initial fix for Ares academy not working on the initial payloads of vehicles built from a war factory
 - **Ares developers**

docs/New-or-Enhanced-Logics.md

@@ -1584,6 +1584,16 @@ Convert.HumanToComputer =   ; TechnoType
 Convert.ComputerToHuman =   ; TechnoType
 ```
 
+### Waypoint for building
+
+- In vanilla, building and aircraft is forbiddened to use waypoint. Now you can turn it on by the following flags.
+
+In `rulesmd.ini`:
+```ini
+[General]
+BuildingWaypoint=false    ; boolean
+```
+
 ## Terrain
 
 ### Destroy animation & sound

docs/Whats-New.md

@@ -323,6 +323,7 @@ New:
 - Type select for buildings (code by TaranDahl(航味麻酱), doc by Ollerus)
 - Raise alert when technos are taking damage (by TaranDahl)
 - Enhanced Bombard trajectory (by CrimRecya & Ollerus, based on knowledge of NaotoYuuki)
+- Toggle waypoint for building (by TaranDahl)
 
 Vanilla fixes:
 - Aircraft will now behave as expected according to it's `MovementZone` and `SpeedType` when moving onto different surfaces. In particular, this fixes erratic behavior when vanilla aircraft is ordered to move onto water surface and instead the movement order changes to a shore nearby (by CrimRecya)

src/Ext/Building/Hooks.cpp

@@ -703,4 +703,14 @@ DEFINE_HOOK(0x44B630, BuildingClass_MissionAttack_AnimDelayedFire, 0x6)
 	return (pTypeExt && !pTypeExt->IsAnimDelayedBurst && pThis->CurrentBurstIndex != 0) ? JustFire : VanillaCheck;
 }
 
-#pragma endregion
+#pragma endregion
+
+#pragma region BuildingWaypoint
+
+bool __fastcall BuildingTypeClass_CanUseWaypoint(BuildingTypeClass* pThis)
+{
+	return RulesExt::Global()->BuildingWaypoint;
+}
+DEFINE_JUMP(VTABLE, 0x7E4610, GET_OFFSET(BuildingTypeClass_CanUseWaypoint))
+
+#pragma endregion

src/Ext/Rules/Body.cpp

@@ -187,6 +187,8 @@ void RulesExt::ExtData::LoadBeforeTypeData(RulesClass* pThis, CCINIClass* pINI)
 	this->DropPodTrailer = droppod_trailer.Get(AnimTypeClass::Find("SMOKEY"));// Ares convention
 	this->PodImage = FileSystem::LoadSHPFile("POD.SHP");
 
+	this->BuildingWaypoint.Read(exINI, GameStrings::General, "BuildingWaypoint");
+
 	this->Buildings_DefaultDigitalDisplayTypes.Read(exINI, GameStrings::AudioVisual, "Buildings.DefaultDigitalDisplayTypes");
 	this->Infantry_DefaultDigitalDisplayTypes.Read(exINI, GameStrings::AudioVisual, "Infantry.DefaultDigitalDisplayTypes");
 	this->Vehicles_DefaultDigitalDisplayTypes.Read(exINI, GameStrings::AudioVisual, "Vehicles.DefaultDigitalDisplayTypes");
@@ -400,6 +402,7 @@ void RulesExt::ExtData::Serialize(T& Stm)
 		.Process(this->JumpjetLevelLightMultiplier)
 		.Process(this->VoxelLightSource)
 		// .Process(this->VoxelShadowLightSource)
+		.Process(this->BuildingWaypoint)
 		.Process(this->CombatAlert)
 		.Process(this->CombatAlert_IgnoreBuilding)
 		.Process(this->CombatAlert_SuppressIfInScreen)

src/Ext/Rules/Body.h

@@ -181,6 +181,7 @@ class RulesExt
 		Valueable<int> CombatLightDetailLevel;
 		Valueable<int> LightFlashAlphaImageDetailLevel;
 
+		Valueable<bool> BuildingWaypoint;
 		Valueable<bool> BuildingTypeSelectable;
 
 		ExtData(RulesClass* OwnerObject) : Extension<RulesClass>(OwnerObject)
@@ -317,6 +318,7 @@ class RulesExt
 			, WarheadParticleAlphaImageIsLightFlash { false }
 			, CombatLightDetailLevel { 0 }
 			, LightFlashAlphaImageDetailLevel { 0 }
+			, BuildingWaypoint { false }
 			, BuildingTypeSelectable { false }
 		{ }