Shields.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 _SHIELDS_H_
#define _SHIELDS_H_
/*
 * Mesh shields for ships and other objects.
 */
#include "JsonFwd.h"
#include "libs.h"
#include <deque>
 
namespace Graphics {
    class Renderer;
}
namespace SceneGraph {
    class Model;
    class StaticGeometry;
} // namespace SceneGraph
 
struct ShieldRenderParameters {
    static const Uint32 MAX_SHIELD_HITS = 5; // Also defined in ShieldMaterial.h
    float strength;
    float coolDown;
    vector3f hitPos[MAX_SHIELD_HITS];
    float radii[MAX_SHIELD_HITS];
    Sint32 numHits;
};
 
class Shields {
public:
    struct Shield {
        Shield(const Color3ub &color, const matrix4x4f &matrix, SceneGraph::StaticGeometry *sg);
        Color3ub m_colour; // I'm English, so it's "colour" ;)
        matrix4x4f m_matrix;
        RefCountedPtr<SceneGraph::StaticGeometry> m_mesh;
    };
 
    Shields(SceneGraph::Model *);
    virtual ~Shields();
    virtual void SaveToJson(Json &jsonObj);
    virtual void LoadFromJson(const Json &jsonObj);
 
    void SetEnabled(const bool on) { m_enabled = on; }
    void Update(const float coolDown, const float shieldStrength);
    void SetColor(const Color3ub &);
    void AddHit(const vector3d &hitPos);
 
    static void Init(Graphics::Renderer *);
    static void ReparentShieldNodes(SceneGraph::Model *);
    static void Uninit();
 
    SceneGraph::StaticGeometry *GetFirstShieldMesh();
 
protected:
    struct Hits {
        Hits(const vector3d &_pos, const Uint32 _start, const Uint32 _end);
        vector3d pos;
        Uint32 start;
        Uint32 end;
    };
    typedef std::deque<Shields::Hits>::iterator HitIterator;
    std::deque<Hits> m_hits;
    std::vector<Shield> m_shields;
    bool m_enabled;
 
    static bool s_initialised;
};
 
#endif