docs: add plugin setup guide

plugin/lib/commonlibf4/include/RE/C/CombatUtilities.h

@@ -0,0 +1,65 @@
+#pragma once
+
+namespace RE
+{
+	class bhkPickData;
+	class NiPoint3;
+
+	namespace CombatUtilities
+	{
+		inline bool CalculateProjectileLOS(
+			Actor*          a_actor,
+			BGSProjectile*  a_projectile,
+			float           a_projectileSpeed,
+			const NiPoint3& a_launchPos,
+			const NiPoint3& a_targetPos,
+			NiPoint3*       a_hitPos,
+			TESObjectREFR** a_collidee,
+			float*          a_distanceFraction)
+		{
+			using func_t = bool (*)(Actor*, BGSProjectile*, float, const NiPoint3&, const NiPoint3&, NiPoint3*, TESObjectREFR**, float*);
+			static REL::Relocation<func_t> func{ ID::CombatUtilities::CalculateProjectileLOS1 };
+			return func(a_actor, a_projectile, a_projectileSpeed, a_launchPos, a_targetPos, a_hitPos, a_collidee, a_distanceFraction);
+		}
+
+		inline bool CalculateProjectileLOS(Actor* a_actor, BGSProjectile* a_projectile, bhkPickData& a_pickData)
+		{
+			using func_t = bool (*)(Actor*, BGSProjectile*, bhkPickData&);
+			static REL::Relocation<func_t> func{ ID::CombatUtilities::CalculateProjectileLOS2 };
+			return func(a_actor, a_projectile, a_pickData);
+		}
+
+		inline bool CalculateProjectileTrajectory(
+			const NiPoint3& a_projectilePos,
+			const NiPoint3& a_projectileVelocity,
+			float           a_projectileGravity,
+			const NiPoint3& a_targetPos,
+			float           a_heading,
+			NiPoint3&       a_trajectoryPos)
+		{
+			using func_t = decltype(&CombatUtilities::CalculateProjectileTrajectory);
+			static REL::Relocation<func_t> func{ ID::CombatUtilities::CalculateProjectileTrajectory };
+			return func(a_projectilePos, a_projectileVelocity, a_projectileGravity, a_targetPos, a_heading, a_trajectoryPos);
+		}
+
+		inline float GetWorldGravity()
+		{
+			static REL::Relocation<float> value{ ID::CombatUtilities::WorldGravity };
+			return value.get();
+		}
+
+		inline bool IsActorUsingMelee(Actor* a_actor)
+		{
+			using func_t = decltype(CombatUtilities::IsActorUsingMelee);
+			static REL::Relocation<func_t> func{ ID::CombatUtilities::IsActorUsingMelee };
+			return func(a_actor);
+		}
+
+		inline bool IsActorUsingUnarmed(Actor* a_actor)
+		{
+			using func_t = decltype(CombatUtilities::IsActorUsingUnarmed);
+			static REL::Relocation<func_t> func{ ID::CombatUtilities::IsActorUsingUnarmed };
+			return func(a_actor);
+		}
+	}
+}