View GitHub Repository beepody

Schedule Inspection
Subscribe
Passed
Push — main ( eaf03b...1b309e )
by Dylan
04:42
created

Tone.beepOnBeepOff   A

↳ Parent: Tone

Complexity

Conditions 2

Size

Total Lines 12
Code Lines 8

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 6

Importance

Changes 0
Metric Value
eloc 8
dl 0
loc 12
c 0
b 0
f 0
ccs 0
cts 0
cp 0
rs 10
cc 2
crap 6
1 
/**
2 
 * @class Tone player
3 
 * @name Tone
4 
 */
5 3 
export class Tone {
6 
  ctx: AudioContext
7 
  gainNode: GainNode
8 
  outNode: AudioDestinationNode
9 

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    10
                

                                    
                                                    
                
                
                
  /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    11
                

                                    
                                                    
                
                
                
   * Initialize a tone beeper.

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    12
                

                                    
                                                    
                
                
                
   */

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    13
                

                                    
                                                    
                
                
                
  /* istanbul ignore next */

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    14
                

                                    
                                                    
                
                
                
  constructor() {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    15
                

                                    
                                                    
                
                
                
    if (

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    16
                

                                    
                                                    
                
                
                
      typeof window !== 'undefined' &&

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    17
                

                                    
                                                    
                
                
                
      typeof window.AudioContext !== 'undefined'

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    18
                

                                    
                                                    
                
                
                
    ) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    19
                

                                    
                                                    
                
                
                
      this.ctx = new window.AudioContext()

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    20
                

                                    
                                                    
                
                
                
      this.gainNode = this.ctx.createGain()

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    21
                

                                    
                                                    
                
                
                
      this.gainNode.gain.value = 1 / 8

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    22
                

                                    
                                                    
                
                
                
      this.outNode = this.ctx.destination

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    23
                

                                    
                                                    
                
                
                
      this.gainNode.connect(this.outNode)

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    24
                

                                    
                                                    
                
                
                
    } else {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    25
                

                                    
                                                    
                
                
                
      throw 'AudioContext is required'

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    26
                

                                    
                                                    
                
                
                
    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
                    27
                

                                    
                                                    
                
                
                
  }

            


            
                                                                        
                            
            
                                    
            
            

                
                    28
                

                                    
                                                    
                
                
                

            


            
                                                                        
                            
            
                                    
            
            

                
                    29
                

                                    
                                                    
                
                
                
  /**

            


            
                                                                        
                            
            
                                    
            
            

                
                    30
                

                                    
                                                    
                
                
                
   * Play a beep after wait seconds, stopping after length seconds.

            


            
                                                                        
                            
            
                                    
            
            

                
                    31
                

                                    
                                                    
                
                
                
   */

            


            
                                                                        
                            
            
                                    
            
            

                
                    32
                

                                    
                                                    
                
                
                
  /* istanbul ignore next */

            


            
                                                                        
                            
            
                                    
            
            

                
                    33
                

                                    
                                                    
                
                
                
  beepOnBeepOff(frequency: number, length: number, wait: number): void {

            


            
                                                                        
                            
            
                                    
            
            

                
                    34
                

                                    
                                                    
                
                
                
    const osc = this.ctx.createOscillator()

            


            
                                                                        
                            
            
                                    
            
            

                
                    35
                

                                    
                                                    
                
                
                
    osc.type = 'square'

            


            
                                                                        
                            
            
                                    
            
            

                
                    36
                

                                    
                                                    
                
                
                
    osc.frequency.value = frequency

            


            
                                                                        
                            
            
                                    
            
            

                
                    37
                

                                    
                                                    
                
                
                
    osc.connect(this.gainNode)

            


            
                                                                        
                            
            
                                    
            
            

                
                    38
                

                                    
                                                    
                
                
                
    osc.start(wait)

            


            
                                                                        
                            
            
                                    
            
            

                
                    39
                

                                    
                                                    
                
                
                
    osc.stop(wait + length)

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    40
                

                                    
                                                    
                
                
                
  }

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    41
                

                                    
                                                    
                
                
                
}

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    42
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
                    43
                

                                    
                                                    
                
                
                
export default Tone

            


            
                                                        
            
                                    
            
            

                
                    44