static void DrawEyes(NanoVGContext vg, float x, float y, float w, float h, float mx, float my, float t)
{
NVGPaint gloss, bg;
float ex = w * 0.23f;
float ey = h * 0.5f;
float lx = x + ex;
float ly = y + ey;
float rx = x + w - ex;
float ry = y + ey;
float dx, dy, d;
float br = (ex < ey ? ex : ey) * 0.5f;
float blink = 1 - (float)(Math.Pow(Math.Sin(t * 0.5f), 200) * 0.8f);
bg = NVG.LinearGradient(vg, x, y + h * 0.5f, x + w * 0.1f, y + h, NVG.RGBA(0, 0, 0, 32), NVG.RGBA(0, 0, 0, 16));
NVG.BeginPath(vg);
NVG.Ellipse(vg, lx + 3.0f, ly + 16.0f, ex, ey);
NVG.Ellipse(vg, rx + 3.0f, ry + 16.0f, ex, ey);
NVG.FillPaint(vg, bg);
NVG.Fill(vg);
bg = NVG.LinearGradient(vg, x, y + h * 0.25f, x + w * 0.1f, y + h, NVG.RGBA(220, 220, 220, 255), NVG.RGBA(128, 128, 128, 255));
NVG.BeginPath(vg);
NVG.Ellipse(vg, lx, ly, ex, ey);
NVG.Ellipse(vg, rx, ry, ex, ey);
NVG.FillPaint(vg, bg);
NVG.Fill(vg);
dx = (mx - rx) / (ex * 10);
dy = (my - ry) / (ey * 10);
d = (float)Math.Sqrt(dx * dx + dy * dy);
if (d > 1.0f)
{
dx /= d; dy /= d;
}
dx *= ex * 0.4f;
dy *= ey * 0.5f;
NVG.BeginPath(vg);
NVG.Ellipse(vg, lx + dx, ly + dy + ey * 0.25f * (1 - blink), br, br * blink);
NVG.FillColor(vg, NVG.RGBA(32, 32, 32, 255));
NVG.Fill(vg);
dx = (mx - rx) / (ex * 10);
dy = (my - ry) / (ey * 10);
d = (float)Math.Sqrt(dx * dx + dy * dy);
if (d > 1.0f)
{
dx /= d; dy /= d;
}
dx *= ex * 0.4f;
dy *= ey * 0.5f;
NVG.BeginPath(vg);
NVG.Ellipse(vg, rx + dx, ry + dy + ey * 0.25f * (1 - blink), br, br * blink);
NVG.FillColor(vg, NVG.RGBA(32, 32, 32, 255));
NVG.Fill(vg);
gloss = NVG.RadialGradient(vg, lx - ex * 0.25f, ly - ey * 0.5f, ex * 0.1f, ex * 0.75f, NVG.RGBA(255, 255, 255, 128), NVG.RGBA(255, 255, 255, 0));
NVG.BeginPath(vg);
NVG.Ellipse(vg, lx, ly, ex, ey);
NVG.FillPaint(vg, gloss);
NVG.Fill(vg);
gloss = NVG.RadialGradient(vg, rx - ex * 0.25f, ry - ey * 0.5f, ex * 0.1f, ex * 0.75f, NVG.RGBA(255, 255, 255, 128), NVG.RGBA(255, 255, 255, 0));
NVG.BeginPath(vg);
NVG.Ellipse(vg, rx, ry, ex, ey);
NVG.FillPaint(vg, gloss);
NVG.Fill(vg);
}
