Power Ups/ Abilitys

Unity Engine
1

So i want to add an ability to my game, where you get so much money and he can buy a spud gun, to replace his bean shooter. Would i just have a shared var, and when lets say, (Spud){ Makes the mesh a spud gun}
Would that be the best approach? Just changing the mesh and the shooting options?

2

There are many ways of doing such a thing… the way i would use (being a relatively n00b-y person) would be this:

enum GunType {
	BEANSHOOTER,
	SPUDGUN,
	HANDGUN, //if you wanted to get more violent :P
}

public var meshFilter : MeshFilter;

public var beanMesh : Mesh;//set in inspector
public var spudMesh : Mesh;//set in inspector
public var handgunMesh : Mesh; //set in inspector

public var gunType : GunType;

public var propertyScript : SomeScript; // set this in the inspector to be your gun properties

function Start (){
	meshFilter = gameObject.GetComponent("MeshFilter");
}

function Update () {
	switch (gunType){
	
		case BEANSHOOTER:
			propertyScript.fireRate  = 7;
			propertyScript.reloadSPeed = 3;
			SwapMesh(beanMesh);
			//etc, etc, etc,
			break;
			
		case SPUDGUN:
			//change values, etc.
			SwapMesh(spudMesh);
			break;
			
		case HANDGUN:
			//change values, etc.
			SwapMesh(handgunMesh);
			break;
	}
}

function SwapMesh ( otherMesh : Mesh) {
	meshFilter.mesh = otherMesh;
}

probably add this code to the gun gameobject

then another code would change the value of gunType

function BuySpudGun (){
	money -= 140;
	gunTypeScript.gunType = SPUDGUN;
}

about the mesh, however; i’ll have to have a further look

EDIT: added mesh swap to first code

3

Ok, so how exactly is this script working. i see you have an enum, is that to select the current weapon? and when you buy somthing, all i would add is the :gunTypeScript.gunType = SPUDGUN"? and one more thing, could i replace the fire rate things to other code without messing the other functions and variables up? Sorry, i just dont fully understand this code so any explination would help. Thanks

And it says, Unkown identifier, “SPUDGUN”, “HANDGUN”, “BEANSHOOTER”

4

i think we got to look up enum in the reference manual :
http://unity3d.com/support/documentation/ScriptReference/30_search.html?q=enum

5

my guess is you’d have to add more to that script to define those types by using something like this :
http://unity3d.com/support/documentation/ScriptReference/SerializedProperty-enumNames.html