float Animator::_calculateValue(float k)
{
if (this->delay > 0.0f)
{
return (this->discreteStep != 0 ? (float)((int)(this->offset / this->discreteStep) * this->discreteStep) : this->offset);
}
float time = this->timer;
if (this->isExpired())
{
if (this->reset)
{
return (this->discreteStep != 0 ? (float)((int)(this->offset / this->discreteStep) * this->discreteStep) : this->offset);
}
time = this->periods / habs(this->speed);
}
float result = 0.0f;
switch (this->animationFunction)
{
case Object::Linear:
result = time * this->speed * this->amplitude;
break;
case Object::Sine:
result = (float)dsin(time * this->speed * 360) * this->amplitude;
break;
case Object::Square:
result = (hmodf(time * this->speed, 1.0f) < 0.5f ? this->amplitude : -this->amplitude);
break;
case Object::Saw:
result = (hmodf(time * this->speed + 0.5f, 1.0f) - 0.5f) * 2 * this->amplitude;
break;
case Object::Triangle:
result = hmodf(time * this->speed, 1.0f);
if (!is_in_range(result, 0.25f, 0.75f))
{
result = (hmodf(time * this->speed + 0.5f, 1.0f) - 0.5f) * 4 * this->amplitude;
}
else
{
result = -(hmodf(time * this->speed - 0.25f, 1.0f) - 0.25f) * 4 * this->amplitude;
}
break;
case Object::Random:
result = hrandf(-this->speed * this->amplitude, this->speed * this->amplitude);
break;
case Object::Hover:
if ((this->amplitude >= 0.0f) == this->parent->isCursorInside())
{
result = hmin(this->value - this->offset + k * this->speed, (float)habs(this->amplitude));
}
else
{
result = hmax(this->value - this->offset - k * this->speed, -(float)habs(this->amplitude));
}
break;
case Object::Custom:
result = (this->customFunction != NULL ? this->customFunction(this, time) : this->value);
break;
}
return (this->discreteStep != 0 ? (float)((int)((result + this->offset) / this->discreteStep) * this->discreteStep) : (result + this->offset));
}
void ProgressCircle::OnDraw()
{
ImageBox::OnDraw();
float progress = hclamp(this->progress, 0.0f, 1.0f);
april::Color color = this->_getDrawColor();
color.a = (unsigned char)(color.a * this->_getDisabledAlphaFactor());
if (this->progressImage != NULL)
{
grect rect = this->_getDrawRect();
if (progress == 1.0f)
{
this->progressImage->draw(rect, color);
}
else if (progress > 0.0f)
{
gvec2 p0;
gvec2 p1;
gvec2 splitCenter;
gvec2 topLeft;
gvec2 topRight;
gvec2 bottomLeft;
gvec2 bottomRight;
switch (this->direction)
{
case Clockwise:
splitCenter.set(1.0f, 0.5f); topLeft.set(0.0f, 1.0f); topRight.set(1.0f, 1.0f); bottomLeft.set(0.0f, 0.0f); bottomRight.set(1.0f, 0.0f);
break;
case Clockwise90:
splitCenter.set(0.5f, 0.0f); topLeft.set(1.0f, 1.0f); topRight.set(1.0f, 0.0f); bottomLeft.set(0.0f, 1.0f); bottomRight.set(0.0f, 0.0f);
break;
case Clockwise180:
splitCenter.set(0.0f, 0.5f); topLeft.set(1.0f, 0.0f); topRight.set(0.0f, 0.0f); bottomLeft.set(1.0f, 1.0f); bottomRight.set(0.0f, 1.0f);
break;
case Clockwise270:
splitCenter.set(0.5f, 1.0f); topLeft.set(0.0f, 0.0f); topRight.set(0.0f, 1.0f); bottomLeft.set(1.0f, 0.0f); bottomRight.set(1.0f, 1.0f);
break;
case Counterclockwise:
splitCenter.set(1.0f, 0.5f); topLeft.set(0.0f, 0.0f); topRight.set(1.0f, 0.0f); bottomLeft.set(0.0f, 1.0f); bottomRight.set(1.0f, 1.0f);
break;
case Counterclockwise90:
splitCenter.set(0.5f, 0.0f); topLeft.set(0.0f, 1.0f); topRight.set(0.0f, 0.0f); bottomLeft.set(1.0f, 1.0f); bottomRight.set(1.0f, 0.0f);
break;
case Counterclockwise180:
splitCenter.set(0.0f, 0.5f); topLeft.set(1.0f, 1.0f); topRight.set(0.0f, 1.0f); bottomLeft.set(1.0f, 0.0f); bottomRight.set(0.0f, 0.0f);
break;
case Counterclockwise270:
splitCenter.set(0.5f, 1.0f); topLeft.set(1.0f, 0.0f); topRight.set(1.0f, 1.0f); bottomLeft.set(0.0f, 0.0f); bottomRight.set(0.0f, 1.0f);
break;
}
harray<april::TexturedVertex> vertices;
vertices += MAKE_VERTEX(gvec2(0.5f, 0.5f));
vertices += MAKE_VERTEX(splitCenter);
april::TexturedVertex vertex;
p0 = bottomRight;
p1 = topRight;
if (progress > 0.125f)
{
vertex = MAKE_VERTEX(topRight);
vertices += vertex;
vertices += vertices.first();
vertices += vertex;
p0 = topRight;
p1 = topLeft;
}
if (progress > 0.375f)
{
vertex = MAKE_VERTEX(topLeft);
vertices += vertex;
vertices += vertices.first();
vertices += vertex;
p0 = topLeft;
p1 = bottomLeft;
}
if (progress > 0.625f)
{
vertex = MAKE_VERTEX(bottomLeft);
vertices += vertex;
vertices += vertices.first();
vertices += vertex;
p0 = bottomLeft;
p1 = bottomRight;
}
if (progress > 0.875f)
{
vertex = MAKE_VERTEX(bottomRight);
vertices += vertex;
vertices += vertices.first();
vertices += vertex;
p0 = bottomRight;
p1 = topRight;
}
double angle = hmodf(progress * 360.0f + 45.0f, 90.0f) - 45.0f;
// angle will always be between -45° and 45° so there is no risk here
float ratio = (float)dtan(angle) * 0.5f + 0.5f;
p0 += (p1 - p0) * ratio;
vertices += MAKE_VERTEX(p0);
this->progressImage->draw(vertices, color);
}
}
if (this->maskImage != NULL)
{
this->maskImage->draw(this->_getDrawRect(), color);
}
}