BlitzNext/Runtime/blitz3d/camera.hpp

#pragma once
#include "frustum.hpp"
#include "mirror.hpp"
#include "model.hpp"

class Camera : public Object {
	public:
	enum { PROJ_NONE = 0, PROJ_PERSP = 1, PROJ_ORTHO = 2 };

	Camera();
	Camera* getCamera()
	{
		return this;
	}

	//called by user
	void setZoom(float z);
	void setRange(float nr, float fr);
	void setViewport(int x, int y, int w, int h);
	void setClsColor(const Vector& v);
	void setClsMode(bool cls_argb, bool cls_z);
	void setProjMode(int mode);
	void setFogColor(const Vector& v);
	void setFogRange(float nr, float fr);
	void setFogMode(int mode);

	//called by world
	bool beginRenderFrame();

	//Camera frustum...
	float          getFrustumNear() const;
	float          getFrustumFar() const;
	float          getFrustumWidth() const;
	float          getFrustumHeight() const;
	const Frustum& getFrustum() const;
	void           getViewport(int* x, int* y, int* w, int* h) const;
	int            getProjMode() const
	{
		return proj_mode;
	}

	private:
	float           zoom;
	int             vp_x, vp_y, vp_w, vp_h;
	Vector          cls_color;
	bool            cls_argb, cls_z;
	int             proj_mode;
	Vector          fog_color;
	float           fog_nr, fog_fr;
	int             fog_mode;
	float           frustum_nr, frustum_fr;
	mutable float   frustum_w, frustum_h;
	mutable Frustum local_frustum;
	mutable bool    local_valid;
};