void SelectionImage::Update()
{
Entity::Update();
Vector2 diff = Input::GetWorldMousePosition() - GetWorldPosition();//position - Graphics::GetScreenCenter();
float mag = (1.0f-(diff.GetMagnitude()/256.0f)) * 1.0f;
if (mag < 0.5f) mag = 0.5f;
if (mag > 1.25f) mag = 1.25f;
scale = Vector2::one * mag;
printf("scale %f, %f\n", scale.x, scale.y);
}
bool Collider::CollideCircleCircle(CircleCollider* a, CircleCollider* b, CollisionData *collisionData)
{
Vector2 diff = a->GetCenter() - b->GetCenter();
if (diff.IsInRange(a->GetRadius() + b->GetRadius()))
{
if (collisionData)
{
collisionData->normal = diff.GetNormalized();
collisionData->penetration = (a->GetRadius() + b->GetRadius()) - diff.GetMagnitude();
collisionData->hitPoint = diff * 0.5f + b->GetCenter();
}
return true;
}
return false;
}
double Vector2::ScalarProjection(const Vector2& onto) const
{
return this->Dot(onto) / onto.GetMagnitude();
}