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feat: add gold glow when action bar spell comes off cooldown

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When a spell's cooldown expires, its action bar slot briefly animates
with a pulsing gold border (4 pulses over 1.5 seconds, fading out) to
draw attention that the ability is ready again. Uses per-slot state
tracking with static maps inside the render lambda.
This commit is contained in:
Kelsi 2026-03-12 05:12:58 -07:00
parent c35bf8d953
commit 8efdaed7e4
1 changed files with 34 additions and 0 deletions
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34
src/ui/game_screen.cpp
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@ -5127,6 +5127,40 @@ void GameScreen::renderActionBar(game::GameHandler& gameHandler) {
}
}
// Ready glow: animate a gold border for ~1.5s when a cooldown just expires
{
static std::unordered_map<int, float> slotGlowTimers; // absSlot -> remaining glow seconds
static std::unordered_map<int, bool> slotWasOnCooldown; // absSlot -> last frame state
float dt = ImGui::GetIO().DeltaTime;
bool wasOnCd = slotWasOnCooldown.count(absSlot) ? slotWasOnCooldown[absSlot] : false;
// Trigger glow when transitioning from on-cooldown to ready (and slot isn't empty)
if (wasOnCd && !onCooldown && !slot.isEmpty()) {
slotGlowTimers[absSlot] = 1.5f;
}
slotWasOnCooldown[absSlot] = onCooldown;
auto git = slotGlowTimers.find(absSlot);
if (git != slotGlowTimers.end() && git->second > 0.0f) {
git->second -= dt;
float t = git->second / 1.5f; // 1.0 → 0.0 over lifetime
// Pulse: bright when fresh, fading out
float pulse = std::sin(t * IM_PI * 4.0f) * 0.5f + 0.5f; // 4 pulses
uint8_t alpha = static_cast<uint8_t>(200 * t * (0.5f + 0.5f * pulse));
if (alpha > 0) {
ImVec2 bMin = ImGui::GetItemRectMin();
ImVec2 bMax = ImGui::GetItemRectMax();
auto* gdl = ImGui::GetWindowDrawList();
// Gold glow border (2px inset, 3px thick)
gdl->AddRect(ImVec2(bMin.x - 2, bMin.y - 2),
ImVec2(bMax.x + 2, bMax.y + 2),
IM_COL32(255, 215, 0, alpha), 3.0f, 0, 3.0f);
}
if (git->second <= 0.0f) slotGlowTimers.erase(git);
}
}
// Key label below
ImGui::TextDisabled("%s", keyLabel);