Auto targeting for enemies and proper healing fixes for bit restorers.

olcCodeJam2023Entry/DeathAnimations.cpp

@@ -17,7 +17,7 @@ void DeathAnimation::Draw(TileTransformedView&game,PixelGameEngine*pge){
 	for(int y=0;y<img.Sprite()->height;y++){
 		for(int x=0;x<img.Sprite()->width;x++){
 			Pixel col=originalImg.Sprite()->GetPixel(x,y);
-			if(col.a==255&&col.r<=(CONSTANT::DEATH_FADE_TIME-fadeTimer)*255){
+			if(col.a==255&&col.r<=(fadeTimer/CONSTANT::DEATH_FADE_TIME)*255){
 				pge->Draw(x,y,matrixImg.Sprite()->GetPixel(x+randomOffset.x,y+randomOffset.y));
 			} else {
 				pge->Draw(x,y,originalImg.Sprite()->GetPixel(x+randomOffset.x,y+randomOffset.y));

olcCodeJam2023Entry/Unit.cpp

@@ -85,7 +85,7 @@ void BitRestorer::Attack(Unit&victim,std::vector<std::shared_ptr<Unit>>&otherUni
 void BitRestorer::AttemptToHealOtherAllies(std::vector<std::shared_ptr<Unit>>&otherUnits){
 	std::vector<int>emptyMemoryPositions;
 	for(auto&u:otherUnits){
-		if(u->IsFriendly()&&InRange(u)){
+		if(u.get()!=this&&u->IsFriendly()&&InRange(u)){
 			for(int i=0;i<u->GetMemorySize();i++){
 				if(!u->memory[i]){
 					emptyMemoryPositions.emplace_back(i);
@@ -324,6 +324,12 @@ int Unit::GetMemorySize(){
 	return memory.size();
 }
 
+void Unit::RunAI(PixelGameEngine*pge){}
+
+void Unit::_RunAI(PixelGameEngine*pge){
+	RunAI(pge);
+}
+
 void Unit::_Update(PixelGameEngine*pge){
 	if(!target.expired()){
 		auto ptrTarget=target.lock();
@@ -339,25 +345,7 @@ void Unit::_Update(PixelGameEngine*pge){
 	}
 
 	if(!IsFriendly()){
-		if(changeDirTimer==0){
-			changeDirTimer=rand()%30;
-			switch(rand()%4){
-				case 0:{
-					movementVel={16,0};
-				}break;
-				case 1:{
-					movementVel={0,16};
-				}break;
-				case 2:{
-					movementVel={-16,0};
-				}break;
-				case 3:{
-					movementVel={0,-16};
-				}break;
-			}
-		}
-		SetPos(GetPos()+movementVel*pge->GetElapsedTime());
-		changeDirTimer=std::max(0.f,changeDirTimer-pge->GetElapsedTime());
+		_RunAI(pge);
 	}
 
 	if(!GhostInFogOfWar()&&InFogOfWar()){
@@ -449,30 +437,47 @@ void Unit::SetPos(vf2d newPos){
 	}
 }
 
-void Unit::AttemptAttack(Unit*unit,std::vector<std::shared_ptr<Unit>>&otherUnits){
+void Unit::AttemptAttack(std::weak_ptr<Unit>attacker,std::weak_ptr<Unit>unit,std::vector<std::shared_ptr<Unit>>&otherUnits){
 	if(reloadTimer>0)return;
-	Unit*finalTarget=nullptr;
-	if(unit!=nullptr){
+	std::weak_ptr<Unit>finalTarget;
+	if(!unit.expired()){
 		finalTarget=unit;
 		if(!target.expired()){
 			auto ptrTarget=target.lock();
 			if(InRange(ptrTarget)){
-				finalTarget=ptrTarget.get();
+				finalTarget=ptrTarget;
 			}
 		}
 	}
-	if(finalTarget!=nullptr){
-		if(InRange(finalTarget)){
-			_Attack(finalTarget,otherUnits); //Call the parent function first, followed by the child.
+	if(!finalTarget.expired()){
+		if(InRange(finalTarget.lock())){
+			_Attack(attacker,finalTarget,otherUnits); //Call the parent function first, followed by the child.
 		}
 	}
 }
 
 void Unit::Update(PixelGameEngine*pge){}
 
-void Unit::_Attack(Unit*finalTarget,std::vector<std::shared_ptr<Unit>>&otherUnits){
-	Attack(*finalTarget,otherUnits);
-	reloadTimer=1.f/(GetAtkSpd()/2.f);
+void Unit::Attacked(std::weak_ptr<Unit>attacker){}
+
+void Unit::_Attacked(std::weak_ptr<Unit>attacker){
+	Attacked(attacker);
+	if(attacker.lock()->IsFriendly()!=IsFriendly()&&CanInteractWithEnemies()){
+		SetTargetUnit(attacker);
+	}
+}
+
+void Unit::_Attack(std::weak_ptr<Unit>attacker,std::weak_ptr<Unit>finalTarget,std::vector<std::shared_ptr<Unit>>&otherUnits){
+	if(GetAtkSpd()>0){
+		Attack(*finalTarget.lock(),otherUnits);
+		finalTarget.lock()->_Attacked(attacker);
+		reloadTimer=1.f/(GetAtkSpd()/2.f);
+		if(GetCurrentTarget().expired()&&!IsFriendly()){
+			if(finalTarget.lock()->IsFriendly()!=IsFriendly()&&CanInteractWithEnemies()){
+				SetTargetUnit(finalTarget);
+			}
+		}
+	}
 }
 
 bool Unit::InFogOfWar(){
@@ -506,3 +511,7 @@ bool Unit::CanInteractWithEnemies(){
 Renderable&Unit::GetImage(){
 	return img;
 }
+
+std::weak_ptr<Unit>Unit::GetCurrentTarget(){
+	return target;
+}

olcCodeJam2023Entry/Unit.h

@@ -48,7 +48,7 @@ public:
 	void SetTargetUnit(std::weak_ptr<Unit>target);
 	void SetTargetLocation(vf2d targetLoc);
 	void SetPos(vf2d newPos);
-	void AttemptAttack(Unit*unit,std::vector<std::shared_ptr<Unit>>&otherUnits);
+	void AttemptAttack(std::weak_ptr<Unit>attacker,std::weak_ptr<Unit>unit,std::vector<std::shared_ptr<Unit>>&otherUnits);
 	bool InFogOfWar();
 	bool GhostInFogOfWar();
 	void HideGhost();
@@ -59,6 +59,11 @@ public:
 	bool CanInteractWithEnemies();
 	bool CanInteractWithAllies();
 	Renderable&GetImage();
+	virtual void RunAI(PixelGameEngine*pge);
+	void _RunAI(PixelGameEngine*pge);
+	virtual void Attacked(std::weak_ptr<Unit>attacker);
+	void _Attacked(std::weak_ptr<Unit>attacker);
+	std::weak_ptr<Unit>GetCurrentTarget();
 
 	std::vector<bool>& operator <<=(const int n){
 		for(int i=0;i<GetMemorySize()-1;i++){
@@ -102,9 +107,7 @@ private:
 	bool selected=false;
 	bool dead=false;
 	float reloadTimer=0;
-	void _Attack(Unit*finalTarget,std::vector<std::shared_ptr<Unit>>&otherUnits);
-	vf2d movementVel={0,0};
-	float changeDirTimer=0;
+	void _Attack(std::weak_ptr<Unit>attacker,std::weak_ptr<Unit>finalTarget,std::vector<std::shared_ptr<Unit>>&otherUnits);
 	bool moveable=true;
 	bool friendlyInteractable=false;
 	bool enemyInteractable=true;

olcCodeJam2023Entry/VirusAttack.cpp

@@ -153,7 +153,8 @@ void VirusAttack::CollisionChecking(std::shared_ptr<Unit>u,std::shared_ptr<Unit>
 	}
 }
 
-void VirusAttack::IdentifyClosestTarget(Unit*&closestUnit,float&closestDist,std::shared_ptr<Unit>u,std::shared_ptr<Unit>u2){
+void VirusAttack::IdentifyClosestTarget(std::weak_ptr<Unit>&closestUnit,float&closestDist,std::shared_ptr<Unit>u,std::shared_ptr<Unit>u2){
+	if(u==u2)return;
 	bool canInteract;
 	canInteract=
 		(u->IsFriendly()&&u->CanInteractWithEnemies()&&!u2->IsFriendly())||
@@ -163,7 +164,7 @@ void VirusAttack::IdentifyClosestTarget(Unit*&closestUnit,float&closestDist,std:
 	if(canInteract){
 		geom2d::line<float>unitLine(u->GetPos(),u2->GetPos());
 		if(unitLine.length()<closestDist){
-			closestUnit=u2.get();
+			closestUnit=u2;
 			closestDist=unitLine.length();
 		}
 	}
@@ -313,7 +314,7 @@ bool VirusAttack::OnUserUpdate(float fElapsedTime){
 	std::erase_if(TileManager::visibleTiles,[](std::pair<vf2d,float> key){return key.second<=0;});
 
 	for(auto&u:units){
-		Unit*closestUnit=nullptr;
+		std::weak_ptr<Unit>closestUnit;
 		float closestDist=999999;
 		for(auto&u2:units){
 			IdentifyClosestTarget(closestUnit,closestDist,u,u2);
@@ -326,7 +327,7 @@ bool VirusAttack::OnUserUpdate(float fElapsedTime){
 				}
 			}
 		}
-		u->AttemptAttack(closestUnit,units);
+		u->AttemptAttack(u,closestUnit,units);
 		u->_Update(this);
 	}
 

olcCodeJam2023Entry/VirusAttack.h

@@ -44,7 +44,7 @@ private:
 	void DrawSelectionRectangle();
 	void HandleRightClickMove();
 	void CollisionChecking(std::shared_ptr<Unit>u,std::shared_ptr<Unit>u2);
-	void IdentifyClosestTarget(Unit*&closestUnit,float&closestDist,std::shared_ptr<Unit>u,std::shared_ptr<Unit>u2);
+	void IdentifyClosestTarget(std::weak_ptr<Unit>&closestUnit,float&closestDist,std::shared_ptr<Unit>u,std::shared_ptr<Unit>u2);
 	vf2d GetWorldMousePos();
 	void HandlePanAndZoom(float fElapsedTime);
 	void DrawMinimap();