{
    "source": "JSON",
    "data": "BLOCK",
    "version": "0.0.1",
    "type": "javascript.adsr",
    "language": "javascript",
    "extension": "webaudio",
    "help": "ADSR",
    "label": "ADSR",
    "color": "#D3C124",
    "group": "Sound",
    "codes": [
        {
            "name": "function",
            "code": "\nEnvelope = function(context, a, d, s, r, g) {\nthis.node = context.createGain()\nthis.context = context;\nthis.node.gain.value = 0;\nthis.a = a / 1000.0;\nthis.d = d / 1000.0;\nthis.s = s / 1000.0;\nthis.r = r / 1000.0;\nthis.g = g;\n}\n\nEnvelope.prototype.play = function(e) {\nvar time = this.context.currentTime;\n// Zero\nthis.node.gain.linearRampToValueAtTime(0, time);\n// Attack time\ntime += this.a;\nthis.node.gain.linearRampToValueAtTime(1, time);\n// Decay time\ntime += this.d;\nthis.node.gain.linearRampToValueAtTime(0.5, time);\n// Sustain time (do nothing)\ntime += this.s;\n// Release time\ntime += this.r;\nthis.node.gain.linearRampToValueAtTime(0, time);\n}\n\nEnvelope.prototype.seta = function(a) {\n    this.a = parseFloat(a)/1000.0;\n}\n\nEnvelope.prototype.setd = function(d) {\n    this.d = parseFloat(d)/1000.0;\n}\n\nEnvelope.prototype.sets = function(s) {\n    this.s = parseFloat(s)/1000.0;\n}\n\nEnvelope.prototype.setr = function(r) {\n    this.r = parseFloat(r)/1000.0;\n}\n\nEnvelope.prototype.setg = function(g) {\n    this.g = parseFloat(g);\n}\n"
        },
        {
            "name": "declaration",
            "code": "\n// block_$id$ = $label$\n\nvar block_$id$_obj = new Envelope(context, $prop[a]$, $prop[d]$, $prop[s]$, $prop[r]$, $prop[g]$);\nvar $port[input]$ = block_$id$_obj.node;\nvar $port[output]$ = block_$id$_obj.node;\n\nvar $port[a]$ = function(value){\n    block_$id$_obj.seta(value);\n};\n\nvar $port[d]$ = function(value){\n    block_$id$_obj.setd(value);\n};\n\nvar $port[s]$ = function(value){\n    block_$id$_obj.sets(value);\n};\n\nvar $port[r]$ = function(value){\n    block_$id$_obj.setr(value);\n};\n\nvar $port[g]$ = function(value){\n    block_$id$_obj.setg(value);\n};\n\nvar $port[play]$ = function(value){\n    if (value != 0) {\n        block_$id$_obj.play();\n    }\n};\n"
        }
    ],
    "properties": [
        {
            "name": "a",
            "label": "Attack",
            "type": "Float",
            "lower": 0,
            "upper": 10000,
            "step": 1,
            "value": 200
        },
        {
            "name": "d",
            "label": "Decay",
            "type": "Float",
            "lower": 0,
            "upper": 10000,
            "step": 1,
            "value": 20
        },
        {
            "name": "s",
            "label": "Sustain",
            "type": "Float",
            "lower": 0,
            "upper": 10000,
            "step": 1,
            "value": 100
        },
        {
            "name": "r",
            "label": "Release",
            "type": "Float",
            "lower": 0,
            "upper": 10000,
            "step": 1,
            "value": 50
        },
        {
            "name": "g",
            "label": "Gain",
            "type": "Float",
            "lower": 0,
            "upper": 10000,
            "step": 1,
            "value": 0.8
        }
    ],
    "ports": [
        {
            "conn_type": "input",
            "name": "input",
            "label": "Input",
            "type": "javascript.sound"
        },
        {
            "conn_type": "input",
            "name": "a",
            "label": "Attack",
            "type": "javascript.float"
        },
        {
            "conn_type": "input",
            "name": "d",
            "label": "Decay",
            "type": "javascript.float"
        },
        {
            "conn_type": "input",
            "name": "s",
            "label": "Sustain",
            "type": "javascript.float"
        },
        {
            "conn_type": "input",
            "name": "r",
            "label": "Release",
            "type": "javascript.float"
        },
        {
            "conn_type": "input",
            "name": "g",
            "label": "Gain",
            "type": "javascript.float"
        },
        {
            "conn_type": "input",
            "name": "play",
            "label": "Event Play",
            "type": "javascript.float"
        },
        {
            "conn_type": "output",
            "name": "output",
            "label": "Output",
            "type": "javascript.sound"
        }
    ]
}