Beam Weapon

Question

Sorry if this has already been asked before a million times, but i don't quite understand how i would combine these 2 scripts, i need my ship to fire a directed energy beam at the target reticle...

Here is the beam script

 @script RequireComponent (LineRenderer)
 
     var mouse : Vector2;
     var hit : RaycastHit;
     var range : float = 100.0;
     var line : LineRenderer;
     var lineMaterial : Material;
     var ray : Ray;
  
     function Start()
     {
        line = GetComponent(LineRenderer);
        line.SetVertexCount(2);
        line.renderer.material = lineMaterial;
        line.SetWidth(0.1f, 0.25f);
     }
  
     function Update() {
         if (ship) {
         //var myShipClass = GetComponent("shipClass");
         target = ship.GetComponent(shipClass).Get_Target();
     }
        ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        if(Physics.Raycast(ray, hit, range))
        {
          if(Input.GetMouseButton(0))
          {
           line.enabled = true;
           line.SetPosition(0, transform.position);
           line.SetPosition(1, hit.point + hit.normal);
          }
          else
           line.enabled = false;
        }
  
     }

And the Reticle Script:

 private var target:GameObject = null;
 var reticle:Texture2D;
 var ship:GameObject;
 private var guiCrossPos:Vector3 = Vector3(0,0,0);
 private var guiCrossSize:Vector2;
 function Start () {
 
 }
 
 function Update () {
     if (ship) {
         //var myShipClass = GetComponent("shipClass");
         target = ship.GetComponent(shipClass).Get_Target();
     }
     if (target && reticle) {
         guiCrossSize = Vector2(135,100);
         guiCrossPos = camera.WorldToScreenPoint(target.transform.position);
         guiCrossPos.x -= guiCrossSize.x / 2;
         guiCrossPos.y += guiCrossSize.y / 2;
         guiCrossPos.y = Screen.height - guiCrossPos.y;
         print(guiCrossSize);
     }
 }
 
 function OnGUI () {
     if (target && reticle) {
         GUI.DrawTexture(Rect(guiCrossPos.x,guiCrossPos.y,guiCrossSize.x,guiCrossSize.y),reticle);
     }
 }

Answer 1

You likely got a down vote because you posted a question with very little explanation about what code was doing now or how you wanted it to behave. Nor did you show any understanding of the code in your comments, which pushed the question towards "do it for me" rather than "help me."

The Reticule code simply displays the retcule at target position projected onto the screen. The first script finds targets based on projecting a ray from the mouse position into the scene and looking at what it hit. You don't need to actually combine the two scripts (though you can), but you need to change the first script so that it targets in the same way. In looking at the script, here are some completely untested changes that will point you in the right direction:

 function Update() {
     if (ship) {
    //var myShipClass = GetComponent("shipClass");
    var target = ship.GetComponent(shipClass).Get_Target();
     }
    //ray = Camera.main.ScreenPointToRay(Input.mousePosition);
    //if(Physics.Raycast(ray, hit, range))
    //{
      if(Input.GetMouseButton(0))
      {
       line.enabled = true;
       line.SetPosition(0, transform.position);
       //line.SetPosition(1, hit.point + hit.normal);
       line.SetPosition(1, target.transform.position);
      }
      else
       line.enabled = false;
    //}
    }

Note given the parameters above, the LineRenderer component must have the the "Use World Space" turned on.

Beam Weapon

1 Reply

Your answer

Follow this Question

Related Questions