bullet.h

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#pragma once
 
#include <cstdint>
 
#include "physics/dynamicworld.h"
 
#include "game/damagecalculator.h"
#include "graphics/meshobjects.h"
#include "graphics/effect.h"
 
class World;
class Item;
class Npc;
 
class Bullet final : public DynamicWorld::BulletCallback {
  public:
    Bullet()=default;
    Bullet(World &owner, const Item &itm, const Tempest::Vec3& pos);
    Bullet(Bullet&&)=default;
    ~Bullet() override;
    Bullet& operator=(Bullet&&)=default;
 
    enum Flg:uint8_t {
      NoFlags = 0,
      Stopped = 1,
      };
 
    void     setPosition  (const Tempest::Vec3& p);
    void     setPosition  (float x,float y,float z);
 
    void     setDirection (const Tempest::Vec3& dir);
    void     setTargetRange(float tgRange);
 
    void     setView      (MeshObjects::Mesh&&   m);
    void     setView      (Effect&& p);
 
    bool     isSpell() const;
    int32_t  spellId() const;
 
    void     setOrigin(Npc* n);
    Npc*     origin() const;
 
    void     setTarget(const Npc* n);
 
    Flg      flags()     const { return flg;  }
    void     setFlags(Flg f) { flg=f; }
    ItemMaterial itemMaterial() const;
 
    auto     damage() const -> const DamageCalculator::Damage& { return dmg; }
    void     setDamage(DamageCalculator::Damage d) { dmg=d; }
 
    float    critChance() const { return critCh; }
    void     setCritChance(float v) { critCh=v; }
    float    hitChance() const { return hitCh; }
    void     setHitChance(float v) { hitCh=v; }
 
    bool     isFinished() const;
    float    pathLength() const;
 
  protected:
    void     onStop() override;
    void     onMove() override;
    void     onCollide(zenkit::MaterialGroup matId) override;
    bool     onCollide(Npc& other) override;
 
  private:
    DynamicWorld::BulletBody* obj=nullptr;
    World*                    wrld=nullptr;
    Npc*                      ow=nullptr;
 
    DamageCalculator::Damage  dmg        = {};
    float                     hitCh      = 1.f;
    float                     critCh     = 0.f;
 
    MeshObjects::Mesh         view;
    Effect                    vfx;
 
    uint8_t                   material=0;
    Flg                       flg=NoFlags;
 
    void updateMatrix();
  };