Experimental commit -- no clue what's here

Source/PresidentsBrigade/BasePawn.cpp

@@ -71,6 +71,13 @@ void ABasePawn::handle_hit(
 		// Update current health.
 		current_health -= damage_class_map[other_class];
 	}
+
+	handle_hit_internal(other_actor);
+}
+
+void ABasePawn::handle_hit_internal(AActor* other_actor)
+{
+	// do nothing by default;
 }
 
 UPawnMovementComponent* ABasePawn::GetMovementComponent() const

Source/PresidentsBrigade/BasePawn.h

@@ -75,6 +75,8 @@ protected:
 		const FHitResult& hit
 	);
 
+	virtual void handle_hit_internal(AActor* other_actor);
+
 	virtual UPawnMovementComponent* GetMovementComponent() const;
 
 	UPROPERTY(EditAnywhere, Category="Player")

Source/PresidentsBrigade/EnemyAIController.cpp

@@ -4,6 +4,7 @@
 #include "EnemyAIController.h"
 #include "EngineUtils.h"
 #include "DrawDebugHelpers.h"
+#include "Kismet/KismetSystemLibrary.h"
 #include "Util.h"
 
 #define LogInfo(Msg) Util::log_info(TEXT("AEnemyIController"), Msg)
@@ -17,7 +18,7 @@ void AEnemyAIController::Tick(float delta_time)
 	{
 	case state_t::init:
 		president = get_president();
-		if (president)
+		if (UKismetSystemLibrary::IsValid(president))
 		{
 			current_state = state_t::wait;
 		}
@@ -31,7 +32,7 @@ void AEnemyAIController::Tick(float delta_time)
 		}
 		break;
 	case state_t::target:
-		if (!president)
+		if (!UKismetSystemLibrary::IsValid(president))
 		{
 			current_state = state_t::init;
 		}
@@ -39,26 +40,28 @@ void AEnemyAIController::Tick(float delta_time)
 		{
 			FVector target_location = president->get_location();
 			const ABasePawn* local_pawn = Cast<ABasePawn>(GetPawn());
-			if (local_pawn)
+			if (UKismetSystemLibrary::IsValid(local_pawn))
 			{
 				FVector current_location = local_pawn->get_location();
+				starting_location = current_location;
+
 				FVector between = target_location - current_location;
 				between = FVector(between.X, between.Y, 0);
 				between.Normalize();
 				FVector extended = (between * overshoot_multiplier) + target_location;
 
 				MoveToLocation(extended);
-				current_state = state_t::moving;
+				current_state = state_t::moving_attack;
 			}
 			else
 			{
 				// This will be cleaned up shortly.
 				current_state = state_t::dead;
 			}
-
 		}
 		break;
-	case state_t::moving:
+	case state_t::moving_attack:
+	case state_t::moving_retreat:
 		if (move_completed)
 		{
 			move_completed = false;
@@ -73,6 +76,15 @@ void AEnemyAIController::Tick(float delta_time)
 	}
 }
 
+void AEnemyAIController::redirect_target()
+{
+	if (current_state == moving_attack)
+	{
+		MoveToLocation(starting_location);
+		current_state = moving_retreat;
+	}
+}
+
  void AEnemyAIController::OnMoveCompleted(FAIRequestID request_id, const FPathFollowingResult& result)
 {
 	 move_completed = true;

Source/PresidentsBrigade/EnemyAIController.h

@@ -18,6 +18,7 @@ class PRESIDENTSBRIGADE_API AEnemyAIController : public AAIController
 public:
 	virtual	void Tick(float delta_time) override;
 
+	void redirect_target();
 protected:
 	virtual void OnMoveCompleted(FAIRequestID request_id, const FPathFollowingResult& result) override;
 
@@ -42,7 +43,8 @@ private:
 		init,
 		wait,
 		target,
-		moving,
+		moving_attack,
+		moving_retreat,
 		dead
 	};
 
@@ -67,4 +69,9 @@ private:
 	 * Time spent in waiting.
 	 */
 	float waiting_time;
+
+	/**
+	 * Starting location.
+	 */
+	FVector starting_location;
 };

Source/PresidentsBrigade/EnemyPawn.cpp

@@ -3,6 +3,11 @@
 
 #include "EnemyPawn.h"
 #include "Pickup.h"
+#include "Util.h"
+#include "EnemyAIController.h"
+
+#define LogInfo(Msg) Util::log_info(TEXT("EnemyPawn"), Msg)
+#define LogError(Msg) Util::log_error(TEXT("EnemyPawn"), Msg)
 
 void AEnemyPawn::BeginPlay()
 {
@@ -33,3 +38,25 @@ void AEnemyPawn::destroy_self()
 
 	ABasePawn::destroy_self();
 }
+
+void AEnemyPawn::handle_hit_internal(AActor* other)
+{
+	const AEnemyPawn* is_enemy = Cast<AEnemyPawn>(other);
+	if (is_enemy)
+	{
+		return;
+	}
+
+	const ABasePawn* other_pawn = Cast<ABasePawn>(other);
+	if (other_pawn)
+	{
+		AEnemyAIController* controller = Cast<AEnemyAIController>(GetController());
+		if (!controller)
+		{
+			LogError("EnemyAIController not used!");
+			return;
+		}
+
+		controller->redirect_target();
+	}
+}

Source/PresidentsBrigade/EnemyPawn.h

@@ -18,6 +18,7 @@ class PRESIDENTSBRIGADE_API AEnemyPawn : public ABasePawn
 protected:
 	virtual void BeginPlay() override;
 	virtual void destroy_self() override;
+	virtual void handle_hit_internal(AActor* other_actor) override;
 
 	/**
 	 * Pickup class to spawn on death.

Source/PresidentsBrigade/PresidentsBrigadeGameModeBase.cpp

@@ -8,3 +8,7 @@ APresidentsBrigadeGameModeBase::APresidentsBrigadeGameModeBase()
 {
 }
 
+void APresidentsBrigadeGameModeBase::PreInitializeComponents() 
+{
+	Super::PreInitializeComponents();
+}

Source/PresidentsBrigade/PresidentsBrigadeGameModeBase.h

@@ -16,4 +16,6 @@ class PRESIDENTSBRIGADE_API APresidentsBrigadeGameModeBase : public AGameModeBas
 	
 public:
 	APresidentsBrigadeGameModeBase();
+
+	virtual void PreInitializeComponents() override;
 };

todo.txt

@@ -19,6 +19,8 @@ xAdd art
   x Car models
   x Street shader
 xAdd HUD UI for single player.
+Make boosting fun
+ - Enemy car ricochets after hitting player/president
 Add sounds
 Add juice
   Add muzzle on shoot