metaforce/Runtime/Input/CRumbleVoice.hpp

#pragma once

#include <vector>

#include "Runtime/RetroTypes.hpp"
#include "Runtime/rstl.hpp"

namespace urde {
enum class ERumbleFxId {
  Zero = 0,
  One = 1,
  CameraShake = 6,
  EscapeSequenceShake = 7,
  PlayerBump = 11,
  PlayerGunCharge = 12,
  PlayerMissileFire = 13,
  PlayerGrappleFire = 14,
  PlayerLand = 15,
  PlayerGrappleSwoosh = 17,
  IntroBossProjectile = 19,
  Twenty = 20,
  TwentyOne = 21,
  TwentyTwo = 22,
  TwentyThree = 23
};
enum class ERumblePriority { None = 0, One = 1, Two = 2, Three = 3 };

struct SAdsrData {
  float x0_attackGain = 0.f;
  float x4_autoReleaseDur = 0.f;
  float x8_attackDur = 0.f;
  float xc_decayDur = 0.f;
  float x10_sustainGain = 0.f;
  float x14_releaseDur = 0.f;
  union {
    struct {
      bool x18_24_hasSustain : 1;
      bool x18_25_autoRelease : 1;
    };
    u32 dummy = 0;
  };

  constexpr SAdsrData() noexcept { x18_24_hasSustain = false; x18_25_autoRelease = false; };
  constexpr SAdsrData(float attackGain, float autoReleaseDur, float attackDur, float decayDur, float sustainGain,
                      float releaseDur, bool hasSustain, bool autoRelease) noexcept
  : x0_attackGain(attackGain)
  , x4_autoReleaseDur(autoReleaseDur)
  , x8_attackDur(attackDur)
  , xc_decayDur(decayDur)
  , x10_sustainGain(sustainGain)
  , x14_releaseDur(releaseDur) {
    x18_24_hasSustain = hasSustain;
    x18_25_autoRelease = autoRelease;
  }
};

struct SAdsrDelta {
  enum class EPhase { Stop, PrePulse, Attack, Decay, Sustain, Release };

  float x0_curIntensity = 0.f;
  float x4_attackTime = 0.f;
  float x8_decayTime = 0.f;
  float xc_releaseTime = 0.f;
  float x10_autoReleaseTime = 0.f;
  float x14_attackIntensity = 0.f;
  float x18_sustainIntensity = 0.f;
  ERumblePriority x1c_priority;
  EPhase x20_phase;

  constexpr SAdsrDelta(EPhase phase, ERumblePriority priority) noexcept
  : x0_curIntensity(phase == EPhase::PrePulse ? 2.f : 0.f), x1c_priority(priority), x20_phase(phase) {}
  constexpr SAdsrDelta(EPhase phase) noexcept : x1c_priority(ERumblePriority::None), x20_phase(phase) {}

  static constexpr SAdsrDelta Stopped() noexcept { return SAdsrDelta(EPhase::Stop); }
  static constexpr SAdsrDelta Start(ERumblePriority priority, bool prePulse) noexcept {
    return SAdsrDelta(prePulse ? EPhase::PrePulse : EPhase::Attack, priority);
  }
};

class CRumbleVoice {
  std::vector<SAdsrData> x0_datas;
  std::vector<SAdsrDelta> x10_deltas;
  rstl::reserved_vector<s16, 4> x20_handleIds;
  s16 x2c_usedChannels = 0;
  u8 x2e_lastId = 0;
  bool UpdateChannel(SAdsrDelta& delta, const SAdsrData& data, float dt);

public:
  CRumbleVoice();
  s16 CreateRumbleHandle(s16 idx);
  bool OwnsSustained(s16 id) const;
  s16 GetFreeChannel() const;
  float GetIntensity() const;
  bool Update(float dt);
  void HardReset();
  s16 Activate(const SAdsrData& data, s16 idx, float gain, ERumblePriority prio);
  void Deactivate(s16 id, bool b1);
  ERumblePriority GetPriority(s16 idx) const { return x10_deltas[idx].x1c_priority; }
};
} // namespace urde