Presets – tweens between – finished beta app – optional second pendulum.
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using System.Collections.Generic;
using VRTK;
public class ColorPickerUnityUI : MonoBehaviour
{
//public Text dbgText;
public VRTK_UIPointer vrtk_UIPointer;
public Slider AlphaSlider;
public Text alphaSlideTextval;
public Image imageColorOut;
private float alphaSelected = 0.74f;
[Tooltip("Is the image a circle")]
public bool circular;
[Tooltip("Picture to use")]
public Image colorPalette;
[Tooltip("Thumb to use")]
public Image thumb;
[Tooltip("Output Color.")]
public Color value;
public float Offset = 0;
[HideInInspector]
public bool WasClicked = false;
private Vector2 SpectrumXY; // the size of the palette
/// <summary>
/// Tis is to make the code more clean down below. We store the values most often used.
/// </summary>
private Bounds PictureBounds; // the bounds of the palette
private Vector3 Max; // max bounds
private Vector3 Min; // min bounds
private CanvasScaler myScale;
//////////////////
private void Start()
{
myScale = colorPalette.canvas.transform.GetComponent<CanvasScaler>();
SpectrumXY = new Vector2 (colorPalette.GetComponent<RectTransform> ().rect.width* myScale.transform.localScale.x, colorPalette.GetComponent<RectTransform> ().rect.height*myScale.transform.localScale.y);
PictureBounds = colorPalette.GetComponent<Collider2D> ().bounds ;
Max = PictureBounds.max;
Min = PictureBounds.min;
}
public static Vector3 MultiplyVectors(Vector3 V1, Vector3 V2) {
float[] X = { V1.x, V2.x };
float[] Y = { V1.y, V2.y };
float[] Z = { V1.z, V2.z };
return new Vector3(X[0] * X[1], Y[0] * Y[1], Z[0] * Z[1]);
}
public void onAlphaSlider()
{
alphaSelected = AlphaSlider.value;
alphaSlideTextval.text = alphaSelected.ToString("F2");
imageColorOut.color = getColor_w_AlphaVal();
}
public Color getColor_w_AlphaVal()
{
Color v_wAlpha;
v_wAlpha = value;
v_wAlpha.a = alphaSelected;
return v_wAlpha;
}
public void ResetTumb()
{
thumb.GetComponent<RectTransform>().localPosition = Vector3.zero;
}
// called by event on object
public void OnPress(){
UpdateThumbPosition ();
WasClicked = true;
}
// called by event on object
public void OnDrag(){
UpdateThumbPosition ();
WasClicked = true;
}
//get color of mouse point
private Color GetColor(){
Vector2 spectrumScreenPosition = colorPalette.transform.position;
Vector2 thumbScreenPosition = thumb.transform.position;
Vector2 position=thumbScreenPosition-spectrumScreenPosition+SpectrumXY*0.5f;
Texture2D texture = colorPalette.mainTexture as Texture2D;
if (circular)
{
myScale = colorPalette.canvas.transform.GetComponent<CanvasScaler>();
SpectrumXY = new Vector2(colorPalette.GetComponent<RectTransform>().rect.width * myScale.transform.localScale.x, colorPalette.GetComponent<RectTransform>().rect.height * myScale.transform.localScale.y);
PictureBounds = colorPalette.GetComponent<Collider2D>().bounds;
Max = PictureBounds.max;
Min = PictureBounds.min;
position = new Vector2 ((position.x / (colorPalette.GetComponent<RectTransform> ().rect.width)),
(position.y / (colorPalette.GetComponent<RectTransform> ().rect.height)));
Color circularSelectedColor = texture.GetPixelBilinear(position.x / myScale.transform.localScale.x, position.y / myScale.transform.localScale.y);
circularSelectedColor.a = 1;
return circularSelectedColor;
}
else
{
position = new Vector2 ((position.x/colorPalette.GetComponent<RectTransform>().rect.width), (position.y / colorPalette.GetComponent<RectTransform>().rect.height) );
}
Color SelectedColor = texture.GetPixelBilinear (position.x / myScale.transform.localScale.x, position.y / myScale.transform.localScale.y);
SelectedColor.a = 1;
return SelectedColor;
}
//move the object only where the picture is
int count = 0;
private void UpdateThumbPosition()
{
count++;
Vector3 vIn = vrtk_UIPointer.pointerEventData.pointerPressRaycast.worldPosition;
if (circular && colorPalette.GetComponent<CircleCollider2D> ())
{
//vIn.x -= 1600;
//vIn.y -= 1600;
//vIn.z = transform.position.z;
//dbgText.text = (count.ToString() + " vIn = " + vrtk_UIPointer.pointerEventData.position.ToString("F2") + " cent = " + transform.position.ToString("F2"));
Vector3 center = transform.position;
Vector3 position = vIn;// Input.mousePosition;
Vector3 offset = position - center;
Vector3 Set = Vector3.ClampMagnitude (offset, (colorPalette.GetComponent<CircleCollider2D> ().radius * myScale.transform.localScale.x));
Vector3 newPos = center + Set;
if (thumb.transform.position != newPos)
{
thumb.transform.position = newPos;
value = GetColor ();
}
}
else
{
if (circular)
{
Debug.LogError ("No 'CircleCollider2D' found on object. Please add a CircleCollider or turn off 'circular'.");
}
SpectrumXY = new Vector2 (colorPalette.GetComponent<RectTransform> ().rect.width* myScale.transform.localScale.x, colorPalette.GetComponent<RectTransform> ().rect.height*myScale.transform.localScale.y);
PictureBounds = colorPalette.GetComponent<Collider2D> ().bounds;
Max = PictureBounds.max;
Min = PictureBounds.min;
float x = Mathf.Clamp (vIn.x, Min.x, Max.x + 1);
float y = Mathf.Clamp (vIn.y, Min.y, Max.y);
Vector3 newPos = new Vector3 (x, y, transform.position.z);
if (thumb.transform.position != newPos)
{
thumb.transform.position = newPos;
value = GetColor ();
imageColorOut.color = getColor_w_AlphaVal();
}
}
}
}
