Custom mouse cursor

[catacomber]

I'd like to try a custom mouse cursor. I have script and an image and know how to do it using Unity GUI texture. Is there a way I can make a custom mouse cursor using NGUI? I did a search here to try to find something but couldn't. The mouse would turn a different color over certain objects.


var controlCenter : GameObject;
private var mouseOverColor : Color;


function Start () {

   guiTexture.enabled = false;  // disable the GUITexture object at start up
   mouseOverColor= controlCenter.GetComponent(GameManager).mouseOverColor;

}

function Update () {
   // gets the current cursor position as a Vector2 type variable
   var pos = Input.mousePosition;

   // feed its x and y positions back into the GUI Texture object’s parameters
   guiTexture.pixelInset.x = pos.x;
   guiTexture.pixelInset.y = pos.y - 32; // offset to top
}

function CursorColorChange (colorize: boolean) {

   if (colorize)  guiTexture.color = mouseOverColor;

   else  guiTexture.color = Color.white;
}

[ArenMook]

I'm sorry, but my javascript skills are weak to say the least. I can only help out with C# questions.

For a custom mouse cursor all you have to do is have a game object follow the mouse -- implying inside Update() it would reposition itself to Input.mousePosition (or more accurately -- using the camera convert from screen to world coordinates, and position the cursor game object there).

I suggest you place it in a panel of its own so its movement doesn't cause buffers to be rebuilt.

[catacomber]

Thanks, I just needed to know how to place it---will try inside a panel and then try to figure out how to refer to the object in the script---it's not going to be a guiTexture---will see what I can do.  Thanks.  :  )  Am learning C#-------- 

I may not even use it but wanted to try it. 

[catacomber]

I'm interested in Windward by the way but have too many things to do right now with learning NGUI to think about it.  :  )  But it's intriguing and I see you posted about letting people make their own maps or something similar-----  :  ) 

[ArenMook]

For the math behind it, check to see how the tooltip is placed (UITooltip). It's the same for the mouse cursor, except you'll be doing that every Update.

[catacomber]

I just got your Ship Game Starter Kit for the good reviews it got. :  ) Any little help I can get in seeing how NGUI works is a good thing cause you never know what you might want to do.  :  ) 

[ArenMook]

Ship game doesn't have NGUI though. That was the first kit I created (about a year before NGUI). Are you going to be adding NGUI to it?

[catacomber]

I guess I will.  :  )  It doesn't matter. It got such excellent reviews I'm sure I'll learn something useful.  :  )

[catacomber]

I'm making an rpg game with Unity--all I know are rpg games. I need NGUI for the main menu and mostly for dialogues with npc's, simple messages, some monster interaction in dialogues and a quest log and, maybe if I can integrate it, an inventory. But I loved the look of your ship game and of course the comments you got are good and am always curious about things.  :  )  I'm sure it will teach me something useful and besides I just wanted to support your good work. :  )

[ArenMook]

[joreldraw]

Here is a custom cursor script i wrote for my project. This is personalized for some kind of object.
But i think you can understand and adapt for you.

1. //----------------------------------------------
2. // Custom Cursor: Customize cursor based on NGUI objects
3. // Writted by: Joreldraw
4. //----------------------------------------------
5.  
6.  
7. // Use:  Add to your main or simple attach to a Empty child.
8.  
9. using UnityEngine;
10. using System.Collections;
11.  
12.  
13. public class CustomCursor : MonoBehaviour {
14.        
15.         private Texture2D cursorImage;
16.         public Texture2D PointerCursor;
17.         public Texture2D ClickCursor;
18.         public Texture2D ClickedCursor;
19.         public Texture2D TextCursor;
20.         public Texture2D MoveCursor;
21.         public Texture2D MovingCursor;
22.         public Texture2D RotateCursor;
23.         private GameObject Seleccion;
24.         private bool Dragging = false;
25.        
26.        
27.         void Start()
28.         {
29.                 if (Application.platform != RuntimePlatform.Android && Application.platform != RuntimePlatform.IPhonePlayer)
30.                 {
31.                
32.             Screen.showCursor = false;
33.                 cursorImage = PointerCursor;
34.                 }
35.         }
36.  
37.         void OnGUI()
38.         {
39.         if (Application.platform != RuntimePlatform.Android && Application.platform != RuntimePlatform.IPhonePlayer)
40.                 {
41.                                 Seleccion = null;
42.                                
43.                             Vector3 mousePos = Input.mousePosition;
44.                                
45.                             Rect pos = new Rect (mousePos.x,Screen.height - mousePos.y,cursorImage.width,cursorImage.height);
46.                                
47.                                
48.                                
49.                                 if (UICamera.hoveredObject)
50.                        
51.                                 {
52.                                         Seleccion =  UICamera.hoveredObject.transform.gameObject ;
53.                                 }
54.                                 else Seleccion = null;
55.                                
56.                                
57.                                 if (Seleccion)
58.                                 {
59.                                         if (TextCursor)
60.                                         {
61.                                         UIInput NguiInput = Seleccion.GetComponentInChildren<UIInput>();
62.                                        
63.                                                 if (NguiInput) cursorImage = TextCursor;
64.                                         }
65.                                        
66.                                        
67.                                        
68.                                         if (ClickCursor)
69.                                         {
70.                                         UIButtonColor NguiButton = Seleccion.GetComponent<UIButtonColor>();
71.                                         UIButtonSound NguiSound = Seleccion.GetComponent<UIButtonSound>();
72.                                         MeshRenderer Rigido = Seleccion.GetComponent<MeshRenderer>();
73.                                                
74.                                                 if (NguiButton || NguiSound || Rigido)
75.                                                 {
76.                                                 cursorImage = ClickCursor;
77.                                                 if(Input.GetMouseButton(0) && ClickedCursor){ cursorImage = ClickedCursor;}
78.                                                 }
79.                                                
80.                                         }
81.                                         if (RotateCursor)
82.                                         {
83.                                         Rotando RotarScript = Seleccion.GetComponent<Rotando>();
84.                                        
85.                                                 if (RotarScript) cursorImage = RotateCursor;
86.                                         }
87.                                
88.                                         if (MoveCursor)
89.                                         {
90.                                         UIDragObject NguiDragable = Seleccion.GetComponent<UIDragObject>();
91.                                                
92.                                                          if (NguiDragable && !Dragging) cursorImage = MoveCursor;
93.                                                 else if (NguiDragable && Dragging ) {cursorImage = MovingCursor;}              
94.                                         }
95.                                
96.                                
97.                                        
98.                                
99.                                 }
100.                                
101.                             GUI.Label(pos,cursorImage);
102.                 }
103.         }
104.        
105.        
106.         void Update()
107.         {
108.                 if (Application.platform != RuntimePlatform.Android && Application.platform != RuntimePlatform.IPhonePlayer)
109.                 {
110.                
111.                         Vector2 mouseFlatPos = new Vector2 (Input.mousePosition.x,Input.mousePosition.y);
112.                         if (mouseFlatPos != UICamera.lastTouchPosition && cursorImage != PointerCursor) cursorImage = PointerCursor;
113.                        
114.                         if (!Dragging)
115.                         {
116.                                 if(Input.GetMouseButtonDown(0)) { Dragging = true;}
117.                                
118.                         }
119.                        
120.                         if (Dragging)
121.                         {
122.                                 if(Input.GetMouseButtonUp(0)){ Dragging = false;}
123.                                
124.                         }
125.                        
126.                
127.                        
128.                 }
129.         }
130.                
131. }
132.  

[catacomber]

Thank you so much. I'll try it!   

[abreu20011]

Just attach a Cursor to one sprite, and then the spirit follows the mouse.
Later write this sentence

1. Screen.showCursor = false;

[renderhjs]

Here is some snippet I wrote today to get the proper local coordinate based on the raw screen coordinate

1. public static Vector3 GetScreenToGuiSpace(Vector3 pos, Transform localSpace, Camera cameraNGUI){
2.  
3.                 // Since the screen can be of different than expected size, we want to convert
4.                 // mouse coordinates to view space, then convert that to world position.
5.                 pos.x = Mathf.Clamp01(pos.x / Screen.width);
6.                 pos.y = Mathf.Clamp01(pos.y / Screen.height);
7.                
8.                 //PROJECT INTO WORLD SPACE
9.                 Vector3 posWorld = cameraNGUI.ViewportToWorldPoint(pos);//ABSOLUTE
10.                
11.                 //CONVERT WORLD SPACE TO LOCAL SPACE
12.                 return localSpace.InverseTransformPoint(posWorld);
13.                
14.                
15.         }

Use it like this

1. spriteCursor.transform.localPosition = GetScreenToGuiSpace( Input.mousePosition, spriteCursor.transform.parent, nguiCamera);

Where nguiCamera is a Camera reference of the Camera that is used by your NGUI setup in the scene.

Hope this helps others

[flavoredCoffee]

renderhjs - your code works fine when the camera covers the entire screen, but if not, then you'll need to use:

1.         pos.x = Mathf.Clamp01(pos.x / cameraNGUI.pixelWidth);
2.         pos.y = Mathf.Clamp01(pos.y / cameraNGUI.pixelHeight);
3.  

Just a minor point, and thanks for sharing.