Switch Case | How, When and Why to use! Why use Switch Case instead of If statements! VIDEO TUTORIAL

Hello!

In this video, we're going to be discussing on how to use Switch Case and why to use them instead of If statements in some situations, depending on your instincts

Got any feedback or constructive criticism about my improvement?
Or maybe a suggestion for tutorial video? Let me know, please

 

@Sykoo,
A use case from a Unity script....

I lifted this from the Bootcamp demo. I offer this up as a more concrete (no pun intended) implementation. In some sense, it is actually self explanatory. Note that it does include common conditional logic which is appropriate in this instance :

It is UnityScript and you could easily point out any differences :

#pragma strict
#pragma implicit
#pragma downcast

enum HitType
{
CONCRETE,
WOOD,
METAL,
OLD_METAL,
GLASS,
GENERIC
}

class BulletMarks extends MonoBehaviour
{
public var concrete : Texture2D[];
public var wood : Texture2D[];
public var metal : Texture2D[];
public var oldMetal : Texture2D[];
public var glass : Texture2D[];
public var generic : Texture2D[];

public function GenerateDecal(type : HitType, go : GameObject)
{
var useTexture : Texture2D;
var random : int;

switch(type)
{
case HitType.CONCRETE:
if(concrete == null) return;
if(concrete.Length == 0) return;

random = Random.Range(0, concrete.Length);

useTexture = concrete[random];
break;
case HitType.WOOD:
if(wood == null) return;
if(wood.Length == 0) return;

random = Random.Range(0, wood.Length);

useTexture = wood[random];
break;
case HitType.METAL:
if(metal == null) return;
if(metal.Length == 0) return;

random = Random.Range(0, metal.Length);

useTexture = metal[random];
break;
case HitType.OLD_METAL:
if(oldMetal == null) return;
if(oldMetal.Length == 0) return;

random = Random.Range(0, oldMetal.Length);

useTexture = oldMetal[random];
break;
case HitType.GLASS:
if(glass == null) return;
if(glass.Length == 0) return;

random = Random.Range(0, glass.Length);

useTexture = glass[random];
break;
case HitType.GENERIC:
if(generic == null) return;
if(generic.Length == 0) return;

random = Random.Range(0, generic.Length);

useTexture = generic[random];
break;
default:
if(wood == null) return;
if(wood.Length == 0) return;

random = Random.Range(0, wood.Length);

useTexture = wood[random];
return;
}

transform.Rotate(new Vector3(0, 0, Random.Range(-180.0, 180.0)));

Decal.dCount++;
var d : Decal = gameObject.GetComponent("Decal");
d.affectedObjects = new GameObject[1];
d.affectedObjects[0] = go;
d.decalMode = DecalMode.MESH_COLLIDER;
d.pushDistance = 0.009 + BulletMarkManager.Add(gameObject);
var m : Material = new Material(d.decalMaterial);
m.mainTexture = useTexture;
d.decalMaterial = m;
d.CalculateDecal();
d.transform.parent = go.transform;
}
}

 

Thank you very much for your example!