public void StartFade(int frame)
{
this.prevX = this.target.localPosition.x;
this.prevY = this.target.localPosition.y;
this.prevScaleX = this.target.localScale.x / this.initScaleX;
this.prevScaleY = this.target.localScale.y / this.initScaleX;
this.prevRotation = this.target.eulerAngles.z;
this.prevR = this.color.r;
this.prevG = this.color.g;
this.prevB = this.color.b;
this.prevA = this.color.a;
Keyframe2D begin = this.keyframes[0];
Keyframe2D end = null;
for (int i = 0; i < this.keyframes.Length; i++)
{
Keyframe2D k = this.keyframes[i];
if (k.frame <= frame)
{
begin = k;
}
if (k.frame > frame && end == null)
{
end = k;
}
}
float p;
if (end == null)
{
end = begin;
p = 1;
}
else
{
p = ((float)frame - (float)begin.frame) / ((float)end.frame - (float)begin.frame);
}
this.fadeX = begin.x + (p * (end.x - begin.x));
this.fadeY = begin.y + (p * (end.y - begin.y));
this.fadeScaleX = begin.scaleX + (p * (end.scaleX - begin.scaleX));
this.fadeScaleY = begin.scaleY + (p * (end.scaleY - begin.scaleY));
// find shortest rotation direction, could be more optimized
float r1 = begin.rotation;
float r2 = end.rotation;
while (r1 < 0f)
{
r1 += 360f;
}
while (r2 < 0f)
{
r2 += 360f;
}
float r3 = r2 - 360f;
if (Mathf.Abs(r2 - r1) > Mathf.Abs(r3 - r1))
{
r2 = r3;
}
r3 = r2 + 360f;
if (Mathf.Abs(r2 - r1) > Mathf.Abs(r3 - r1))
{
r2 = r3;
}
this.fadeRotation = r1 + (p * (r2 - r1));
this.fadeR = begin.r + (p * (end.r - begin.r));
this.fadeG = begin.g + (p * (end.g - begin.g));
this.fadeB = begin.b + (p * (end.b - begin.b));
this.fadeA = begin.a + (p * (end.a - begin.a));
}
public void Update(float frame)
{
Keyframe2D begin = null;
Keyframe2D end = null;
for (int i = 0; i < this.keyframes.Length; i++)
{
Keyframe2D k = this.keyframes[i];
if (k.frame <= frame)
{
begin = k;
}
if (k.frame > frame && end == null)
{
end = k;
}
}
float p;
if (end == null)
{
end = begin;
p = 1;
}
else
{
p = (frame - begin.frame) / (end.frame - begin.frame);
}
float x = begin.x + (p * (end.x - begin.x));
float y = begin.y + (p * (end.y - begin.y));
this.target.localPosition = new Vector3(x, y, this.target.localPosition.z);
x = begin.scaleX + (p * (end.scaleX - begin.scaleX));
y = begin.scaleY + (p * (end.scaleY - begin.scaleY));
this.target.localScale = new Vector3(x * this.initScaleX, y * this.initScaleY, this.target.localScale.z);
// find shortest rotation direction, could be more optimized
float r1 = begin.rotation;
float r2 = end.rotation;
while (r1 < 0f)
{
r1 += 360f;
}
while (r2 < 0f)
{
r2 += 360f;
}
float r3 = r2 - 360f;
if (Mathf.Abs(r2 - r1) > Mathf.Abs(r3 - r1))
{
r2 = r3;
}
r3 = r2 + 360f;
if (Mathf.Abs(r2 - r1) > Mathf.Abs(r3 - r1))
{
r2 = r3;
}
this.target.eulerAngles = new Vector3(this.target.eulerAngles.x, this.target.eulerAngles.y, r1 + (p * (r2 - r1)));
if (mesh != null && (this.color.r != end.r || this.color.g != end.g || this.color.b != end.b || this.color.a != end.a))
{
this.color = new Color(
begin.r + (p * (end.r - begin.r)),
begin.g + (p * (end.g - begin.g)),
begin.b + (p * (end.b - begin.b)),
begin.a + (p * (end.a - begin.a))
);
this.colors[0] = this.colors[1] = this.colors[2] = this.colors[3] = this.color;
mesh.colors = this.colors;
}
}
public void AddKeyframe(Keyframe2D keyframe)
{
this.keyframes[count] = keyframe;
count++;
}
