# Dragon Curve ref: https://ja.wikipedia.org/wiki/%E3%83%89%E3%83%A9%E3%82%B4%E3%83%B3%E6%9B%B2%E7%B7%9A # 遅いので、上のスライダーの値を 0 にすることを推奨 { Manual f: forword b: backword l: left turn r: right turn x: set x y: set y h: set to home d: set direction U: pen up D: pen down show detail -> https://docs.python.org/ja/3/library/turtle.html } D # init start # 4 0 0,[1 0 0]+,start # [1 0 0] の繰り返しの回数で Dragon Curve の深さが決まる # 注: 深すぎて、収まらない場合や浅すぎて小さい場合は L58 の + の個数を変える (1辺の長さに対応) <<< + <<< + <<< + <<< + <<< + <<< + <<< + <<< + <<< ++++ >>> >>> >>> >>> >>> >>> >>> >>> >>> # init end <<< [# if state == 0 -> end # mv state [ - <<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10} + >>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10} ] # mv LorR >[ - <<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10} + >>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10} ]< # +++++++++++++++++++++++++++++++++++++++++++++{45} # to moved state <<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10} # switch state ( != 0) <+> -[<-> # state != 1 <<+>> -[<<->> # state != 2 <<<+>>> -[<<<->>> # state != 3 # state == 4 +++++ ++f <<<< ++++ >>>> # nextState = 4 >>>> ++ <<<< # gotoL? = 2 (no) [-]] <<<[>>> # state == 3 > # if LorR == 0 { left 45 } else { right 45 } >+++++++++++++++++++++++++++++++++++++++++++++{45} l < >> + << # nextLorR = 1 (right) [ # LorR == 1 (right) > rr < >> - << # nextLorR = 0 (left) [-] ] >[-]< < <<<< + >>>> # nextState = 1 >>>> ++ <<<< # gotoL? = 2 (no) <<<[-]]>>> [-]] <<[>> # state == 2 > # if LorR == 0 { right 90 } else { left 90 } >+++++++++++++++++++++++++++++++++++++++++++++{45} rr < [ # LorR == 1 (right) > ll ll < >> + << # nextLorR = 1 (right) [-] ] >[-]< < <<<< +++ >>>> # nextState = 3 >>>> + <<<< # gotoL? = 1 (yes) <<[-]]>> [-]] <[> # state == 1 > # if LorR == 0 { left 45 } else { right 45 } >+++++++++++++++++++++++++++++++++++++++++++++{45} l < [ # LorR == 1 (right) > rr < >> + << # nextLorR = 1 (right) [-] ] >[-]< < <<<< ++ >>>> # nextState = 2 >>>> + <<<< # gotoL? = 1 (yes) <[-]]> # mv nextState <<<<[- >>>> + <<<< ]>>>> # mv LorR > >>[- << + >> ]<< # mv gotoL? > >>[- << + >> ]<< << [ - >>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10} + <<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10} ] > [ - >>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10} + <<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10} ] > [ - >>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10} + <<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10}<<<<<<<<<<{10} ] << >>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10}>>>>>>>>>>{10} >> [- [- # goto L? == 2 >>> >>> ] <<< ] << ]