#pragma once

#include "opcomp.hh"

namespace ops { class T_OpContext; }


struct T_Demo
{
	T_Demo( ) = default;

	NO_COPY( T_Demo );
	NO_MOVE( T_Demo );

	// ---------------------------------------------------------------------

	bool initialise( const uint32_t width ,
			const uint32_t height );
	void render( );

	void handleDND(
			ImVec2 const& move ,
			const bool hasCtrl ,
			const bool hasShift ,
			const bool lmb		// Left mouse button
		);
	void handleWheel(
			const float wheel ,
			const bool hasCtrl ,
			const bool hasShift
		);

	// ---------------------------------------------------------------------

	bool playing = false;

    private:
	uint32_t width;
	uint32_t height;

	T_OwnPtr< ops::T_OpProgram > program;
	T_OwnPtr< ops::T_OpContext > context;

	bool playingPrevious = false;
	float lastFrame;

	bool runInit( ops::T_OpProgram& program );
};