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feat: optimize color update logic in Ball class and improve vector normalization

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This commit is contained in:
Florian Sylvain
2025-05-11 07:02:05 +02:00
parent c58a2cead2
commit 77b7631f63
3 changed files with 34 additions and 19 deletions
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src/Ball.cpp
+20 -11
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@@ -31,6 +31,15 @@ void Ball::update(float dt, const sf::Vector2f& windowSize) {
}
void Ball::updateColor() {
float currentSpeed =
std::sqrt(m_velocity.x * m_velocity.x + m_velocity.y * m_velocity.y);
static float lastSpeed = 0.0f;
if (std::abs(currentSpeed - lastSpeed) < 10.0f) {
return;
}
lastSpeed = currentSpeed;
float speed =
std::sqrt(m_velocity.x * m_velocity.x + m_velocity.y * m_velocity.y);
@@ -39,21 +48,21 @@ void Ball::updateColor() {
sf::Color targetColor;
if (t < 0.33f) {
if (t < 0.33f) { // Red to orange
float scaledT = t * 3.0f;
targetColor.r = static_cast<std::uint8_t>(0 + scaledT * 128);
targetColor.g = static_cast<std::uint8_t>(0);
targetColor.b = static_cast<std::uint8_t>(255);
} else if (t < 0.66f) {
float scaledT = (t - 0.33f) * 3.0f;
targetColor.r = static_cast<std::uint8_t>(128 + scaledT * 127);
targetColor.r = static_cast<std::uint8_t>(255);
targetColor.g = static_cast<std::uint8_t>(0 + scaledT * 165);
targetColor.b = static_cast<std::uint8_t>(255 - scaledT * 255);
} else {
targetColor.b = static_cast<std::uint8_t>(0);
} else if (t < 0.66f) { // Orange to yellow
float scaledT = (t - 0.33f) * 3.0f;
targetColor.r = static_cast<std::uint8_t>(255);
targetColor.g = static_cast<std::uint8_t>(165 + scaledT * 90);
targetColor.b = static_cast<std::uint8_t>(0);
} else { // Yellow to white
float scaledT = (t - 0.66f) * 3.0f;
targetColor.r = static_cast<std::uint8_t>(255);
targetColor.g = static_cast<std::uint8_t>(165 - scaledT * 165);
targetColor.b = static_cast<std::uint8_t>(0);
targetColor.g = static_cast<std::uint8_t>(255);
targetColor.b = static_cast<std::uint8_t>(0 + scaledT * 255);
}
sf::Color currentColor = m_shape.getFillColor();