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import Op, Value, Input, match from require 'core.base'
apply_range = (range, val) ->
if range\type! == 'str'
switch range\unwrap!
when 'uni' then val
when 'bip' then val * 2 - 1
when 'rad' then val * 2 * math.pi
when 'deg' then val * 360
else
error "unknown range #{range}"
elseif range.type == 'num'
val * range\unwrap!
else
error "range has to be a string or number"
range_doc = "
range can be one of:
- 'uni' [ 0 - 1[ (default)
- 'bip' [-1 - 1[
- 'rad' [ 0 - tau[
- 'deg' [ 0 - 360[
- (num) [ 0 - num["
class num extends Op
num = Value.meta
meta:
name: 'num'
summary: 'Generate a random number.'
examples: { '(random/num [trigger] [range]))' }
description: "generate a random value in `range` when created and on `trig`.
#{range_doc}"
value: class extends Op
new: =>
super 'num'
@gen!
gen: => @state = { math.random! }
setup: (inputs) =>
{ trig, range } = match 'bang? any?', inputs
super
trig: trig and Input.event trig
range: Input.value range or Value.str 'uni'
tick: =>
@gen! if @inputs.trig and @inputs.trig\dirty!
@out\set apply_range @inputs.range, @state[1]
vec_ = (n) ->
Value.meta
meta:
name: "vec#{n}"
summary: 'Generate a random vector.'
examples: { '(random/vec#{n} [trigger] [range]))' }
description: "generate a random vec#{n} in `range` when created and on `trig`.
#{range_doc}"
value: class extends Op
new: =>
super "vec#{n}"
@gen!
gen: => @state = for i=1,n do math.random!
setup: (inputs) =>
{ trig, range } = match 'bang? any?', inputs
super
trig: trig and Input.event trig
range: Input.value range or Value.str 'uni'
tick: =>
@gen! if @inputs.trig and @inputs.trig\dirty!
@out\set [apply_range @inputs.range, v for v in *@state]
{
:num
vec2: vec_ 2
vec3: vec_ 3
vec4: vec_ 4
}
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