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Question by Venenomz · Aug 02, 2017 at 05:34 AM · c#

Need help with Subtracting currency for TD game

I have a script that handles dragging and another that handles the currency. I am trying to make it so when a turret is instantiated you lost the cost of the turret from your total money. This is the script for dropping, most importantly the instantiating bit: public void OnEndDrag(PointerEventData eventData) { if (activeSlot != null) { MeshFilter mf = activeSlot.GetComponent<MeshFilter>(); Vector3 quadCentre = GetQuadCentre(activeSlot); // snaps the prefab to the middle of the quad Instantiate(prefab, quadCentre, Quaternion.identity); activeSlot.SetActive(false); } hoverPrefab.SetActive(false); } I have tried adding If (activeSlot != null && scrap.scrap >= cost) then let it instantiate but its not working. Infact it breaks everything, and allows only one turret of each kind to be placed. I have no idea why its not working. This is the script for the scrap(currency): `public class Scrap : MonoBehaviour {

 public Text scrapText;

 public float scrap;
 // Use this for initialization
 void Start ()
 {
     scrap = 50;
     UpdateScrapText();
 }
 
 // Update is called once per frame
 void Update ()
 {
     
 }

 public void AddScrap(float scrapToAdd)
 {
     scrap += scrapToAdd;
     UpdateScrapText();
 }

 public void SubtractScrap(float scrapToSubtract)
 {
     scrap -= scrapToSubtract;

     if (scrap <= 0)
     {
         scrap = 0;
     }
     UpdateScrapText();
 }

 public void UpdateScrapText()
 {
     // update scrap text 
     scrapText.text = "Scrap: " + scrap.ToString();
 }

} If anyone knows how to fix it please help! I'd greatly appreciate it!

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