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UEC++ Unreal 5 Third Person Shooter Game (Part 2)

Derivative Grenade Weapons

• Create a new one that inherits fromWeaponAs a subclass of the derived grenade weapon
  
• WillWeaponIn the classFireFunction AdditionvirtualThe keyword becomes a virtual function so that the grenade class can inherit and rewrite it
  
• existProjectileWeaponRewriteFireFunction, create a new template variable for generating projectiles
  
• FireFunction rewriting logic
  
• Code

	//生成的投射物
	UPROPERTY(EditAnywhere,BlueprintReadOnly,Category = "ProjectileWeapon")
	TSubclassOf<AActor> ProjectileClass;
//--------------------------------------------------------------------------------------------------
void AProjectileWeapon::Fire()
{
   
	AActor* MyOwner = GetOwner();
	if (MyOwner)
	{
   
		FVector EyeLocation;
		FRotator EyeRotation;
		MyOwner->GetActorEyesViewPoint(EyeLocation, EyeRotation);

		FActorSpawnParameters SpawnParams;
		//设置投射物生成参数:即使生成位置有碰撞，也要强行生成投射物，不进行碰撞检测处理
		SpawnParams.SpawnCollisionHandlingOverride = ESpawnActorCollisionHandlingMethod::AlwaysSpawn;
		//获取枪口位置
		FVector MuzzleLocation = SkeletalComponent->GetSocketLocation(MuzzleSocketName);
		//生成并发射投射物
		GetWorld()->SpawnActor<AActor>(ProjectileClass, MuzzleLocation, EyeRotation, SpawnParams);
	}
}
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Derived grenade weapons

• Create a blueprint for the derived grenade class and add the mesh model to it
  
• Change the name of the slot in the mesh model to ourC++The name defined in
  
• CreateActorThe blueprint is used as a bullet, and a launcher and a sphere mesh are added. The initial and maximum speeds of the launcher are set to 2000, and the projectile rebound effect is turned on. The sphere mesh turns on physical simulation.
  
  
• Added grenade weapon blueprint spawn projectiles exposed in blueprint spawn bullets to it
  
• In the character blueprint, change the instance's weapon type to a howitzer weapon, and then change the instance's object to the parent weapon. This will make it easier for us to test the problem when calling the function.
  
• Add an explosion event to the bullet blueprint and write the logic
  
• existBeginPlayCall the logic event
  
• operation result
  

Sniper's zoom boost effect

• Create four new variables in the character class: one for turning on zoom push, one for the zoom field of view, one for getting the default field of view, and one for the rate of linear interpolation to the new view.
  
• Create a right-click operation input
  
• Create a new right-click operation processing function
  
• Assign new perspectives for movement and interpolation rates for movement
  
• existBeginPlayGet the default viewing angle range from
  
• Right-click to bind function logic and set new perspective linear interpolation range logic
  
• Binding Input Operations
  
• Create a new operation input in the engine and add it to the mapping
  
  
• Bind operations to the character blueprint
  
• operation result
  

Creating a console variable

• Create a static variable in the weapon class as a variable to control the console, control whether to shoot and draw lines, and create a new automatic management console variable class
  
• FAutoConsoleVariableRef: A class for automatically managing console variables

FAutoConsoleVariableRef ACVRDebugWeaponDrawLine(TEXT("COOP.DebugWeapons"), DebugWeaponDrawLine,TEXT