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game/ui: generalize cast tracking to per-GUID map; add boss cast bars

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Previously the target cast bar tracked a single target using 4 private
fields. This replaces that with unitCastStates_ (unordered_map<uint64_t,
UnitCastState>), tracking cast state for every non-player unit whose
SMSG_SPELL_START we receive.

Changes:
- GameHandler::UnitCastState struct: casting, spellId, timeRemaining,
  timeTotal
- getUnitCastState(guid) → returns cast state for any tracked unit
- isTargetCasting(), getTargetCastSpellId(), getTargetCastProgress(),
  getTargetCastTimeRemaining() now delegate to getUnitCastState(targetGuid)
- handleSpellStart: tracks all non-player casters (not just the target)
- handleSpellGo: erases caster from map when spell lands
- update loop: ticks down all unit cast states, erasing expired entries
- unitCastStates_ cleared on world reset
- renderBossFrames: shows red cast progress bar per boss slot with
  spell name + remaining seconds — critical for instance interrupt play
This commit is contained in:
Kelsi 2026-03-09 23:13:30 -07:00
parent 1c85b7a46d
commit 07d0485a31
3 changed files with 68 additions and 36 deletions
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41
include/game/game_handler.hpp
View file

@ -513,15 +513,33 @@ public:
float getCastProgress() const { return castTimeTotal > 0 ? (castTimeTotal - castTimeRemaining) / castTimeTotal : 0.0f; }
float getCastTimeRemaining() const { return castTimeRemaining; }
// Target cast bar (shows when the current target is casting)
bool isTargetCasting() const { return targetCasting_; }
uint32_t getTargetCastSpellId() const { return targetCastSpellId_; }
float getTargetCastProgress() const {
return targetCastTimeTotal_ > 0.0f
? (targetCastTimeTotal_ - targetCastTimeRemaining_) / targetCastTimeTotal_
: 0.0f;
// Unit cast state (tracked per GUID for target frame + boss frames)
struct UnitCastState {
bool casting = false;
uint32_t spellId = 0;
float timeRemaining = 0.0f;
float timeTotal = 0.0f;
};
// Returns cast state for any unit by GUID (empty/non-casting if not found)
const UnitCastState* getUnitCastState(uint64_t guid) const {
auto it = unitCastStates_.find(guid);
return (it != unitCastStates_.end() && it->second.casting) ? &it->second : nullptr;
}
// Convenience helpers for the current target
bool isTargetCasting() const { return getUnitCastState(targetGuid) != nullptr; }
uint32_t getTargetCastSpellId() const {
auto* s = getUnitCastState(targetGuid);
return s ? s->spellId : 0;
}
float getTargetCastProgress() const {
auto* s = getUnitCastState(targetGuid);
return (s && s->timeTotal > 0.0f)
? (s->timeTotal - s->timeRemaining) / s->timeTotal : 0.0f;
}
float getTargetCastTimeRemaining() const {
auto* s = getUnitCastState(targetGuid);
return s ? s->timeRemaining : 0.0f;
}
float getTargetCastTimeRemaining() const { return targetCastTimeRemaining_; }
// Talents
uint8_t getActiveTalentSpec() const { return activeTalentSpec_; }
@ -1764,11 +1782,8 @@ private:
bool casting = false;
uint32_t currentCastSpellId = 0;
float castTimeRemaining = 0.0f;
// Target cast bar state (populated from SMSG_SPELL_START for the current target)
bool targetCasting_ = false;
uint32_t targetCastSpellId_ = 0;
float targetCastTimeRemaining_= 0.0f;
float targetCastTimeTotal_ = 0.0f;
// Per-unit cast state (keyed by GUID, populated from SMSG_SPELL_START)
std::unordered_map<uint64_t, UnitCastState> unitCastStates_;
uint64_t pendingGameObjectInteractGuid_ = 0;
// Talents (dual-spec support)