CODEWITHSUNDEEP
c#unity-game-engine
Danish shamim
Danish shamim

Reputation: 21

How to change the color of a white sprite using HEX values?

I have been trying to change the color of a white sprite using script. I have the HEX valve which I convert into RGB and try to change the color of the sprite. The color gets changed but it is not exactly what I require. It changes to some random color. Below is the code which I'm Trying, I can't understand where I'm going wrong. Please Help me out. Thank You.

    string tempColor;
    tempColor = "E2270A";
    Color m_NewColor;
    float m_Red, m_Green, m_Blue;
    m_Red = System.Convert.ToInt32 (tempColor.Substring (0, 2), 16);
    m_Green = System.Convert.ToInt32 (tempColor.Substring (2, 2), 16);
    m_Blue = System.Convert.ToInt32 (tempColor.Substring (4, 2), 16);

    m_NewColor = new Color (m_Red, m_Green, m_Blue);
    Animinstance.GetComponent<SpriteRenderer> ().color = m_NewColor;

Upvotes: 0

Views: 3171

Answers (3)

TimChang
TimChang

Reputation: 2417

Very simply just call ColorUtility.TryParseHtmlString api , But should add '#'

Color color;
if( ColorUtility.TryParseHtmlString("#E2270A", out color))
{
    Animinstance.GetComponent<SpriteRenderer>().color = color;
}

Upvotes: 3

derHugo
derHugo

Reputation: 90679

As John mentioned Color takes float values 0.0f - 1.0f so simply devide your values by 255f in order to map them to the according float (%) value .

Or you can simply use Color32 instead which takes byte values 0-255

var tempColor = "E2270A";
var m_Red = System.Convert.ToByte(tempColor.Substring(0, 2), 16);
var m_Green = System.Convert.ToByte(tempColor.Substring(2, 2), 16);
var m_Blue = System.Convert.ToByte(tempColor.Substring(4, 2), 16);

// always requires the alpha parameter
var m_NewColor = new UnityEngine.Color32(m_Red, m_Green, m_Blue, 255);
Animinstance.GetComponent<SpriteRenderer>().color = m_NewColor;

Color32 can be implicitly converted to and from Color.

Upvotes: 1

ProgrammingLlama
ProgrammingLlama

Reputation: 38767

If you look at the docs for Color, you'll note that the example takes float values:

Color newColor = new Color(0.3f, 0.4f, 0.6f, 0.3f); // r, g, b, a

or

Color newColor = new Color(0.3f, 0.4f, 0.6f); // r, g, b

We can conclude from the examples that Color expects valeus between 0 (0x00 in your hex string) and 1 (0xFF), but the integer values of these hex values are 0-255. We therefore need to divide them by 255 to get values between 0 and 1:

string tempColor;
tempColor = "E2270A";
Color m_NewColor;
float m_Red, m_Green, m_Blue;
m_Red = System.Convert.ToSingle (tempColor.Substring (0, 2), 16) / 255.0f;
m_Green = System.Convert.ToSingle (tempColor.Substring (2, 2), 16) / 255.0f;
m_Blue = System.Convert.ToSingle (tempColor.Substring (4, 2), 16) / 255.0f;

m_NewColor = new Color (m_Red, m_Green, m_Blue);
Animinstance.GetComponent<SpriteRenderer> ().color = m_NewColor;

Upvotes: 0

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