Projectile.h

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// Copyright © 2008-2021 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#ifndef _PROJECTILE_H
#define _PROJECTILE_H
 
#include "Body.h"
 
struct ProjectileData {
    ProjectileData() :
        lifespan(0.0f),
        damage(0.0f),
        length(0.0f),
        width(0.0f),
        speed(0.0f),
        color(Color::WHITE),
        mining(false),
        beam(false) {}
    float lifespan;
    float damage;
    float length;
    float width;
    float speed;
    Color color;
    bool mining;
    bool beam;
};
 
class Frame;
 
namespace Graphics {
    class Material;
    class Renderer;
    class RenderState;
    class VertexArray;
} // namespace Graphics
 
class Projectile : public Body {
public:
    OBJDEF(Projectile, Body, PROJECTILE);
 
    static void Add(Body *parent, float lifespan, float dam, float length, float width, bool mining, const Color &color, const vector3d &pos, const vector3d &baseVel, const vector3d &dirVel);
    static void Add(Body *parent, const ProjectileData &prData, const vector3d &pos, const vector3d &baseVel, const vector3d &dirVel);
 
    Projectile() = delete;
    Projectile(Body *parent, const ProjectileData &prData, const vector3d &pos, const vector3d &baseVel, const vector3d &dirVel);
    Projectile(const Json &jsonObj, Space *space);
    virtual ~Projectile();
    virtual void Render(Graphics::Renderer *r, const Camera *camera, const vector3d &viewCoords, const matrix4x4d &viewTransform) override final;
    void TimeStepUpdate(const float timeStep) override final;
    void StaticUpdate(const float timeStep) override final;
    virtual void NotifyRemoved(const Body *const removedBody) override final;
    virtual void UpdateInterpTransform(double alpha) override final;
    virtual void PostLoadFixup(Space *space) override final;
 
    static void FreeModel();
 
protected:
    virtual void SaveToJson(Json &jsonObj, Space *space) override final;
 
private:
    float GetDamage() const;
    double GetRadius() const;
    Body *m_parent;
    vector3d m_baseVel;
    vector3d m_dirVel;
    float m_age;
    float m_lifespan;
    float m_baseDam;
    float m_length;
    float m_width;
    bool m_mining;
    Color m_color;
 
    int m_parentIndex; // deserialisation
 
    static void BuildModel();
 
    static std::unique_ptr<Graphics::VertexArray> s_sideVerts;
    static std::unique_ptr<Graphics::VertexArray> s_glowVerts;
    static std::unique_ptr<Graphics::Material> s_sideMat;
    static std::unique_ptr<Graphics::Material> s_glowMat;
    static Graphics::RenderState *s_renderState;
};
 
#endif /* _PROJECTILE_H */