HudTrail.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 _HUDTRAIL_H
#define _HUDTRAIL_H
 
#include "Color.h"
#include "FrameId.h"
#include "matrix4x4.h"
#include "graphics/Drawables.h"
 
#include <deque>
// trail drawn after an object to track motion
 
namespace Graphics {
    class Renderer;
    class RenderState;
} // namespace Graphics
 
class Body;
class Frame;
 
class HudTrail {
public:
    HudTrail(Body *b, const Color &);
    void Update(float time);
    void Render(Graphics::Renderer *r);
    void Reset(const FrameId newFrame);
 
    void SetColor(const Color &c) { m_color = c; }
    void SetTransform(const matrix4x4d &t) { m_transform = t; }
 
private:
    Body *m_body;
    FrameId m_currentFrame;
    float m_updateTime;
    Color m_color;
    matrix4x4d m_transform;
    std::deque<vector3d> m_trailPoints;
    Graphics::RenderState *m_renderState;
    Graphics::Drawables::Lines m_lines;
};
 
#endif