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opacity + animation fixes

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This commit is contained in:
John McCardle 2026-02-03 12:18:21 -05:00
commit 045b625655
9 changed files with 845 additions and 151 deletions
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18
src/UISprite.cpp
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@ -109,9 +109,10 @@ void UISprite::render(sf::Vector2f offset, sf::RenderTarget& target)
// Check visibility
if (!visible) return;
// Apply opacity
// Apply opacity (multiply with sprite color alpha)
auto color = sprite.getColor();
color.a = static_cast<sf::Uint8>(255 * opacity);
sf::Uint8 original_alpha = color.a;
color.a = static_cast<sf::Uint8>(original_alpha * opacity);
sprite.setColor(color);
// Apply rotation and origin
@ -157,7 +158,7 @@ void UISprite::render(sf::Vector2f offset, sf::RenderTarget& target)
}
// Restore original alpha
color.a = 255;
color.a = original_alpha;
sprite.setColor(color);
}
@ -653,6 +654,11 @@ bool UISprite::setProperty(const std::string& name, float value) {
markDirty(); // #144 - Content change
return true;
}
else if (name == "opacity") {
opacity = std::clamp(value, 0.0f, 1.0f);
markDirty(); // #144 - Visual change
return true;
}
else if (name == "z_index") {
z_index = static_cast<int>(value);
markDirty(); // #144 - Z-order change affects parent
@ -718,6 +724,10 @@ bool UISprite::getProperty(const std::string& name, float& value) const {
value = sprite.getScale().y;
return true;
}
else if (name == "opacity") {
value = opacity;
return true;
}
else if (name == "z_index") {
value = static_cast<float>(z_index);
return true;
@ -757,7 +767,7 @@ bool UISprite::hasProperty(const std::string& name) const {
// Float properties
if (name == "x" || name == "y" ||
name == "scale" || name == "scale_x" || name == "scale_y" ||
name == "z_index" ||
name == "opacity" || name == "z_index" ||
name == "rotation" || name == "origin_x" || name == "origin_y") {
return true;
}