72 lines
1.3 KiB
D
72 lines
1.3 KiB
D
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module cdplayer;
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import amplifier;
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import std.stdio : writeln;
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import std.conv : to;
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class CdPlayer
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{
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private string description;
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private int currentTrack;
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private Amplifier amplifier;
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private string title;
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this(string description, Amplifier amplifier)
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{
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this.description = description;
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this.amplifier = amplifier;
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}
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void on()
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{
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writeln(description ~ " on");
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}
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void off()
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{
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writeln(description ~ " off");
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}
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void eject()
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{
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title = null;
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writeln(description ~ " eject");
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}
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void play(string title)
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{
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this.title = title;
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currentTrack = 0;
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writeln(description ~ " playing \"" ~ title ~ "\"");
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}
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void play(int track)
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{
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if (title is null)
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{
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writeln(description ~ " can't play track " ~ currentTrack.to!string ~ " no cd inserted");
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}
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else
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{
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currentTrack = track;
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writeln(description ~ " playing track " ~ currentTrack.to!string);
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}
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}
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void stop()
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{
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currentTrack = 0;
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writeln(description ~ " stopped");
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}
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void pause()
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{
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writeln(description ~ " paused \"" ~ title ~ "\"");
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}
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override string toString() const
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{
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return description;
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}
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}
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