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Define additional constraints in HSV space.

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This commit is contained in:
Paul Chote
2016-01-26 23:04:08 +00:00
parent 617295cc91
commit 7638746069
1 changed files with 16 additions and 5 deletions
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21
OpenRA.Mods.Common/ColorValidator.cs
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@@ -21,6 +21,8 @@ namespace OpenRA.Mods.Common
{
// The bigger the color threshold, the less permissive is the algorithm
public readonly int Threshold = 0x50;
public readonly float[] HsvSaturationRange = new[] { 0.25f, 1f };
public readonly float[] HsvValueRange = new[] { 0.2f, 1.0f };
double GetColorDelta(Color colorA, Color colorB)
{
@@ -51,9 +53,18 @@ namespace OpenRA.Mods.Common
return true;
}
public bool IsValid(Color askedColor, out Color forbiddenColor, IEnumerable<Color> terrainColors, IEnumerable<Color> playerColors, Action<string> onError)
{
// Validate color against HSV
float h, s, v;
new HSLColor(askedColor).ToHSV(out h, out s, out v);
if (s < HsvSaturationRange[0] || s > HsvSaturationRange[1] || v < HsvValueRange[0] || v > HsvValueRange[1])
{
onError("Color was adjusted to be inside the allowed range.");
forbiddenColor = askedColor;
return false;
}
// Validate color against the current map tileset
if (!IsValid(askedColor, terrainColors, out forbiddenColor))
{
@@ -81,10 +92,10 @@ namespace OpenRA.Mods.Common
Action<string> ignoreError = _ => { };
do
{
var hue = (byte)random.Next(255);
var sat = (byte)random.Next(255);
var lum = (byte)random.Next(129, 255);
color = new HSLColor(hue, sat, lum);
var h = random.Next(255) / 255f;
var s = float2.Lerp(HsvSaturationRange[0], HsvSaturationRange[1], random.NextFloat());
var v = float2.Lerp(HsvValueRange[0], HsvValueRange[1], random.NextFloat());
color = HSLColor.FromHSV(h, s, v);
} while (!IsValid(color.RGB, out forbidden, terrainColors, playerColors, ignoreError));
return color;