/// <summary>
/// Draws the gui related
/// </summary>
/// <returns>True if there's a need to call the Repaint() method, false otherwise</returns>
public bool DrawGUI()
{
repaint = false;
Rect windowRect = GUILayoutUtility.GetRect(100, 1000, 60, 60);
gradientPreviewRect = new Rect(windowRect.x + 10, windowRect.y + 10, windowRect.width - 20, 25);
keySelectionAreaRect = new Rect(gradientPreviewRect.x - 10, gradientPreviewRect.yMax, gradientPreviewRect.width + 20, 25);
GUI.DrawTexture(gradientPreviewRect, gradient.GetTexture());
if (keyRects == null || keyRects.Length != gradient.keys.Count)
{
keyRects = new Rect[gradient.keys.Count];
}
Rect selectedRect = Rect.zero;
for (int i = 0; i < gradient.keys.Count; i++)
{
Rect keyRect = new Rect(gradientPreviewRect.x + gradientPreviewRect.width * gradient.keys[i].Time - 10, gradientPreviewRect.yMax, 20, 25);
keyRects[i] = keyRect;
if (i == selectedKeyIndex)
{
selectedRect = keyRect;
}
else
{
GUI.DrawTexture(keyRect, TSConstants.UpColor);
GUI.DrawTexture(keyRect, TSConstants.UpColorInternal, ScaleMode.ScaleToFit, true, 0, gradient.keys[i].Color, 0, 0);
}
}
if (selectedRect != Rect.zero)
{
GUI.DrawTexture(selectedRect, TSConstants.UpColorSelected);
GUI.DrawTexture(selectedRect, TSConstants.UpColorInternal, ScaleMode.ScaleToFit, true, 0, gradient.keys[selectedKeyIndex].Color, 0, 0);
}
Color col = EditorGUILayout.ColorField("Color", gradient.keys[selectedKeyIndex].Color);
if (!col.Equals(gradient.keys[selectedKeyIndex].Color))
{
gradient.UpdateKeyColor(selectedKeyIndex, col);
}
float time = EditorGUILayout.FloatField("Location", gradient.keys[selectedKeyIndex].Time);
if (time != gradient.keys[selectedKeyIndex].Time)
{
gradient.UpdateKeyTime(selectedKeyIndex, time);
}
rampWidth = (RampWidth)EditorGUILayout.EnumPopup("Ramp size", rampWidth);
if ((int)rampWidth != gradient.GetTexture().width)
{
gradient.UpdateTextureWidth((int)rampWidth);
}
blendMode = (GradientTexture.BlendMode)EditorGUILayout.EnumPopup("Blend mode", blendMode);
if (blendMode != gradient.blendMode)
{
gradient.blendMode = blendMode;
gradient.UpdateTexture();
}
HandleEvents();
EditorGUILayout.Space();
return(repaint);
}
public void TranslateTextureToGradient(Texture2D texture)
{
#if UNITY_2018_1_OR_NEWER
if (!texture.isReadable)
{
texture = TSFunctions.SetTextureImporterFormat(texture, true);
}
#else
texture = TSFunctions.SetTextureImporterFormat(texture, true);
#endif
gradient = new GradientTexture((int)rampWidth);
blendMode = GradientTexture.BlendMode.Linear;
int sampleWidth = Mathf.Max(texture.width, texture.height);
Color[] colors = new Color[sampleWidth];
for (int i = 0; i < sampleWidth; i++)
{
colors[i] = texture.GetPixel(texture.width * i / sampleWidth, texture.height * i / sampleWidth);
//Debug.Log(colors[i]);
}
Color[] delta = GetDelta(colors);
int deltaVariance = 0;
for (int i = 0; i < delta.Length; i++)
{
if (delta[i].r != 0 || delta[i].g != 0 || delta[i].b != 0)
{
deltaVariance++;
}
//Debug.Log("color " + colors[i]);
//Debug.Log("delta " + delta[i]);
}
//Debug.Log(deltaVariance);
//Debug.Log(Mathf.Max(texture.width, texture.height) * 0.1);
if (deltaVariance < Mathf.Max(texture.width, texture.height) * 0.1)
{
blendMode = GradientTexture.BlendMode.Fixed;
gradient.blendMode = blendMode;
}
delta[0] = delta[1];
Color[] deltaSquared = GetDelta(delta);
List <GradientTexture.ColorKey> KeyChanged = new List <GradientTexture.ColorKey>();
List <Color> deltaChanged = new List <Color>();
KeyChanged.Add(new GradientTexture.ColorKey(colors[0], 0));
deltaChanged.Add(deltaSquared[0]);
for (int i = 1; i < sampleWidth - 1; i++)
{
//Debug.Log("color " + colors[i]);
//Debug.Log("delta " + delta[i]);
//Debug.Log("deltaSquared " + deltaSquared[i]);
if (Mathf.Abs(deltaSquared[i].r) > 0.002 || Mathf.Abs(deltaSquared[i].g) > 0.002 || Mathf.Abs(deltaSquared[i].b) > 0.002)
{
if (blendMode == GradientTexture.BlendMode.Fixed)
{
KeyChanged.Add(new GradientTexture.ColorKey(colors[i - 1], i / ((float)sampleWidth - 1)));
deltaChanged.Add(deltaSquared[i]);
}
else
{
KeyChanged.Add(new GradientTexture.ColorKey(colors[i], i / ((float)sampleWidth - 1)));
deltaChanged.Add(deltaSquared[i]);
//Debug.Log(colors[i] + "-" + (i / (float)sampleWidth));
}
}
}
KeyChanged.Add(new GradientTexture.ColorKey(colors[(int)sampleWidth - 1], 1));
deltaChanged.Add(deltaSquared[(int)sampleWidth - 1]);
List <GradientTexture.ColorKey> finalKeys = new List <GradientTexture.ColorKey>();
finalKeys.Add(KeyChanged[0]);
Color lastDelta = new Color(0, 0, 0, 0);
if (blendMode == GradientTexture.BlendMode.Fixed)
{
for (int i = 1; i < KeyChanged.Count; i++)
{
//float deltaVarianceSum = Mathf.Abs(getDeltaVariance(deltaChanged[i]) - getDeltaVariance(lastDelta));
if ((KeyChanged[i].Time - finalKeys[finalKeys.Count - 1].Time) < 0.05)
{
/*if (getDeltaVariance(deltaChanged[i]) > getDeltaVariance(lastDelta))
* {
* finalKeys.RemoveAt(finalKeys.Count - 1);
* finalKeys.Add(KeyChanged[i]);
* lastDelta = deltaChanged[i];
* }*/
}
else
{
finalKeys.Add(KeyChanged[i]);
lastDelta = deltaChanged[i];
}
}
}
else
{
for (int i = 1; i < KeyChanged.Count; i++)
{
float deltaVarianceSum = Mathf.Abs(getDeltaVariance(deltaChanged[i]) - getDeltaVariance(lastDelta));
if ((KeyChanged[i].Time - finalKeys[finalKeys.Count - 1].Time) + deltaVarianceSum > 0.1 && deltaVarianceSum > 0.002)
{
finalKeys.Add(KeyChanged[i]);
lastDelta = deltaChanged[i];
}
}
if (finalKeys[finalKeys.Count - 1].Time != 1)
{
finalKeys.Add(KeyChanged[KeyChanged.Count - 1]);
}
}
gradient.keys = finalKeys;
gradient.UpdateTexture();
}