3DMath.js

(function (Scratch) {
  "use strict";

  /* eslint-disable */
  class ExtensionBuilder{constructor(t,n,i,e){this.internal={},this.internal.JSON={blocks:[],menus:{}},this.runtime=Scratch.vm.runtime,this.internal.defaultFunction={code(){console.log("This block has no code")},arguments:{}},this.addDocs=t=>{this.internal.JSON.docsURI=t},this.addBlock=(t,n,i,e,l,s)=>{e=e||this.internal.defaultFunction.code,this[n]=e,s=s||{};let o=s;o.disableMonitor||(o.disableMonitor=!0),o.opcode=n,o.blockType=i,o.text=t,o.arguments=l||JSON.parse(JSON.stringify(this.internal.defaultFunction.arguments));let r=this.internal.JSON.blocks.length;return this.internal.JSON.blocks.push(o),this.internal.JSON.blocks[r].addArgument=(t,i,e,l)=>{if(null==(e=e||null))switch(typeof i){case"string":default:e=Scratch.ArgumentType.STRING;break;case"boolean":e=Scratch.ArgumentType.BOOLEAN;break;case"number":case"bigint":e=Scratch.ArgumentType.NUMBER}return null==i?this.internal.JSON.blocks[r].arguments[t]={type:e}:this.internal.JSON.blocks[r].arguments[t]={type:e,defaultValue:i},(l=l||null)&&("string"==typeof l?this.internal.JSON.blocks[r].arguments[t].menu=l:"function"==typeof l||"object"==typeof l?(this.addMenu(n+"_"+t+"_Menu",l,!0),this.internal.JSON.blocks[r].arguments[t].menu=n+"_"+t+"_Menu"):console.error("Menu '"+n+"_"+t+"_Menu'is not valid!")),this.internal.JSON.blocks[r]},this.internal.JSON.blocks[r].setIcon=t=>(this.internal.JSON.blocks[r].blockIconURI=t,this.internal.JSON.blocks[r]),this.internal.JSON.blocks[r].setFilter=t=>(t=t||Scratch.TargetType.SPRITE,this.internal.JSON.blocks[r].filter=t,this.internal.JSON.blocks[r]),this.internal.JSON.blocks[r].hideBlock=()=>(this.internal.JSON.blocks[r].hideFromPalette=!0,this.internal.JSON.blocks[r]),this.internal.JSON.blocks[r].stopMoniter=()=>(this.internal.JSON.blocks[r].disableMonitor=!0,this.internal.JSON.blocks[r]),this.internal.JSON.blocks[r].setEdgeActivation=t=>(this.internal.JSON.blocks[r].isEdgeActivated=t,this.internal.JSON.blocks[r]),this.internal.JSON.blocks[r].addImage=(t,n,i)=>{i=i||!1;let e={type:Scratch.ArgumentType.IMAGE,dataURI:n,flipRTL:i};return this.internal.JSON.blocks[r].arguments[t]=e,this.internal.JSON.blocks[r]},this.internal.JSON.blocks[r]},this.addMenu=(t,n,i)=>{i=i||!1,"function"==typeof n?(this[t+"Function"]=n,this.internal.JSON.menus[t]={items:t+"Function"}):this.internal.JSON.menus[t]={items:n},this.internal.JSON.menus[t].acceptReporters=i},this.addButton=(t,n,i)=>{n=n||this.internal.defaultFunction.code,i=i||"Button",this["button_"+t]=n;let e={};e.func="button_"+t,e.blockType=Scratch.BlockType.BUTTON,e.text=i;let l=this.internal.JSON.blocks.length;return this.internal.JSON.blocks[l]=e,this.internal.JSON.blocks[l]},this.addDivider=()=>{this.internal.JSON.blocks.push("---")},this.addLabel=t=>{t=t||"N/A";let n={opcode:"__NOUSEOPCODE",blockType:"label",text:t};this.internal.JSON.blocks.push(n)},this.__NOUSEOPCODE=()=>{},this.internal.createBase=()=>{if(t=t||"Extension",n=n||"extension",this.internal.JSON.name=t,this.internal.JSON.id=n,(i=i||{}).blockColor=i.blockColor||null,i.inputColor=i.inputColor||null,i.outlineColor=i.outlineColor||null,null!=i.blockColor){let l=i.blockColor;l>8947848?this.internal.colors=[l,l-197379,l-394758,]:this.internal.colors=[l,l+197379,l+394758,],i.inputColor,this.internal.colors[1]=i.inputColor,i.outlineColor,this.internal.colors[2]=i.outlineColor,this.internal.JSON.color1=this.internal.colors[0],this.internal.JSON.color2=this.internal.colors[1],this.internal.JSON.color3=this.internal.colors[2]}(e=e||{}).blockIconUri=e.blockIconUri||null,e.menuIconUri=e.menuIconUri||e.blockIconUri||null,this.menuUri=e.menuIconUri,this.blockIco=e.blockIconUri,this.docsUri=null},this.internal.createBase(),this.setColors=(t,n,i)=>{t="string"==typeof t?t:(t+0).toString(16),n="string"==typeof n?n:(n+0).toString(16),i="string"==typeof i?i:(i+0).toString(16),this.internal.colors=[0,0,0],this.internal.colors[0]=t,this.internal.colors[1]=n,this.internal.colors[2]=i,this.internal.JSON.color1=t,this.internal.JSON.color2=n,this.internal.JSON.color3=i},this.setMenuIcon=t=>{this.internal.JSON.menuIconURI=t},this.setGlobalBlockIcon=t=>{this.internal.JSON.blockIconURI=t},this.runHat=t=>{this.runtime.startHats(this.internal.JSON.id+"_"+t)},this.getInfo=()=>this.internal.JSON,this.register=()=>{Scratch.extensions.register(this)}}}
  /* eslint-enable */

  const cubeICO =
    "data:image/svg+xml;base64,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";
  const blockICO =
    "data:image/svg+xml;base64,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";

  const spritePositions = {};
  let fov = 300;

  const math_3d = new ExtensionBuilder("3D Math", "obviousAlexCMath3d");
  const d2r = 0.0174533;

  const camera = {
    position: [0, 0, 0],
    rotation: [0, 0, 0],
  };

  math_3d.setMenuIcon(cubeICO);

  math_3d.setGlobalBlockIcon(blockICO);

  math_3d.setColors("#ADC213", "#A0B312", "#697700");

  math_3d.addMenu("axisMenu", [
    { text: "x", value: "0" },
    { text: "y", value: "1" },
    { text: "z", value: "2" },
  ]);

  math_3d.addMenu("axisMenu2D", [
    { text: "x", value: "0" },
    { text: "y", value: "1" },
  ]);

  math_3d.addLabel("Vector 3");

  math_3d
    .addBlock(
      "vector 3 x:[x] y:[y] z:[z]",
      "newV3",
      Scratch.BlockType.REPORTER,
      ({ x, y, z }) => {
        return JSON.stringify([x, y, z]);
      }
    )
    .addArgument("x", 0)
    .addArgument("y", 0)
    .addArgument("z", 0);

  math_3d
    .addBlock(
      "vector 3 from [value]",
      "newV3fromValue",
      Scratch.BlockType.REPORTER,
      ({ value }) => {
        if (typeof value == "number") {
          return JSON.stringify([value, value, value]);
        }
        return JSON.stringify([0, 0, 0]);
      }
    )
    .addArgument("value", 0);

  math_3d
    .addBlock(
      "get the [axis] axis of [vector]",
      "getAxisOfV3",
      Scratch.BlockType.REPORTER,
      ({ axis, vector }) => {
        axis = Scratch.Cast.toNumber(axis);
        return JSON.parse(vector)[axis];
      }
    )
    .addArgument("axis", null, null, "axisMenu")
    .addArgument("vector", "[0,0,0]");

  math_3d.addLabel("Equations");

  math_3d
    .addBlock(
      "V3: [a] + [b]",
      "addV3",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return JSON.stringify([a[0] + b[0], a[1] + b[1], a[2] + b[2]]);
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("b", "[0,0,0]");

  math_3d
    .addBlock(
      "V3: [a] - [b]",
      "subV3",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return JSON.stringify([a[0] - b[0], a[1] - b[1], a[2] - b[2]]);
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("b", "[0,0,0]");

  math_3d
    .addBlock(
      "V3: [a] * [b]",
      "mulV3",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return JSON.stringify([a[0] * b[0], a[1] * b[1], a[2] * b[2]]);
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("b", "[0,0,0]");

  math_3d
    .addBlock(
      "V3: [a] / [b]",
      "divV3",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        const c = [0, 0, 0];
        c[0] = a[0] / b[0];
        c[1] = a[1] / b[1];
        c[2] = a[2] / b[2];
        if (isNaN(c[0])) {
          c[0] = 0;
        }

        if (isNaN(c[1])) {
          c[1] = 0;
        }

        if (isNaN(c[2])) {
          c[2] = 0;
        }

        return JSON.stringify(c);
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("b", "[0,0,0]");

  math_3d
    .addBlock(
      "V3: dot product between [a] and [b]",
      "dotProductOfV3",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("b", "[0,0,0]");

  math_3d
    .addBlock(
      "V3: cross product between [a] and [b]",
      "crossProductOfV3",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);

        const c = [0, 0, 0];

        c[0] = a[1] * b[2] - a[2] * b[1];
        c[1] = a[2] * b[0] - a[0] * b[2];
        c[2] = a[0] * b[1] - a[1] * b[0];

        return JSON.stringify(c);
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("b", "[0,0,0]");

  math_3d
    .addBlock(
      "V3: magnitude of [a]",
      "magnitudeV3",
      Scratch.BlockType.REPORTER,
      ({ a }) => {
        a = JSON.parse(a);
        return Math.sqrt(
          Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2)
        );
      }
    )
    .addArgument("a", "[0,0,0]");

  math_3d
    .addBlock(
      "V3: distance between [a] and [b]",
      "distanceV3",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return Math.sqrt(
          Math.pow(a[0] - b[0], 2) +
            Math.pow(a[1] - b[1], 2) +
            Math.pow(a[2] - b[2], 2)
        );
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("b", "[0,0,0]");

  math_3d
    .addBlock(
      "V3: rotate [a] around [b] by yaw:[yaw] pitch:[pitch], and roll:[roll]",
      "rotateAroundPointV3",
      Scratch.BlockType.REPORTER,
      ({ a, b, yaw, pitch, roll }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);

        a[0] -= b[0];
        a[1] -= b[1];
        a[2] -= b[2];

        const sinAndCos = [
          Math.sin(yaw * d2r),
          Math.cos(yaw * d2r),
          Math.sin(pitch * d2r),
          Math.cos(pitch * d2r),
          Math.sin(roll * d2r),
          Math.cos(roll * d2r),
        ];

        let temp = a[0];

        a[0] = a[2] * sinAndCos[0] + a[0] * sinAndCos[1];
        a[2] = a[2] * sinAndCos[1] - temp * sinAndCos[0];

        temp = a[1];

        a[1] = a[2] * sinAndCos[2] + a[1] * sinAndCos[3];
        a[2] = a[2] * sinAndCos[3] - temp * sinAndCos[2];

        temp = a[0];

        a[0] = a[1] * sinAndCos[4] + a[0] * sinAndCos[5];
        a[1] = a[1] * sinAndCos[5] - temp * sinAndCos[4];

        a[0] += b[0];
        a[1] += b[1];
        a[2] += b[2];

        return JSON.stringify(a);
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("b", "[0,0,0]")
    .addArgument("yaw", "0")
    .addArgument("pitch", "0")
    .addArgument("roll", "0");

  math_3d
    .addBlock(
      "V3: rotate [a] around the center by yaw:[yaw] pitch:[pitch], and roll:[roll]",
      "rotateAroundCenterV3",
      Scratch.BlockType.REPORTER,
      ({ a, yaw, pitch, roll }) => {
        a = JSON.parse(a);

        const sinAndCos = [
          Math.sin(yaw * d2r),
          Math.cos(yaw * d2r),
          Math.sin(pitch * d2r),
          Math.cos(pitch * d2r),
          Math.sin(roll * d2r),
          Math.cos(roll * d2r),
        ];

        let temp = a[0];

        a[0] = a[2] * sinAndCos[0] + a[0] * sinAndCos[1];
        a[2] = a[2] * sinAndCos[1] - temp * sinAndCos[0];

        temp = a[1];

        a[1] = a[2] * sinAndCos[2] + a[1] * sinAndCos[3];
        a[2] = a[2] * sinAndCos[3] - temp * sinAndCos[2];

        temp = a[0];

        a[0] = a[1] * sinAndCos[4] + a[0] * sinAndCos[5];
        a[1] = a[1] * sinAndCos[5] - temp * sinAndCos[4];

        return JSON.stringify(a);
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("yaw", "0")
    .addArgument("pitch", "0")
    .addArgument("roll", "0");

  math_3d.addLabel("Vector 2");

  math_3d
    .addBlock(
      "vector 2 x:[x] y:[y]",
      "newV2",
      Scratch.BlockType.REPORTER,
      ({ x, y, z }) => {
        return JSON.stringify([x, y, z]);
      }
    )
    .addArgument("x", 0)
    .addArgument("y", 0)
    .addArgument("z", 0);

  math_3d
    .addBlock(
      "vector 2 from [value]",
      "newV2fromValue",
      Scratch.BlockType.REPORTER,
      ({ value }) => {
        if (typeof value == "number") {
          return JSON.stringify([value, value]);
        }
        return JSON.stringify([0, 0]);
      }
    )
    .addArgument("value", 0);

  math_3d
    .addBlock(
      "V2: get the [axis] axis of [vector]",
      "getAxisOfV2",
      Scratch.BlockType.REPORTER,
      ({ axis, vector }) => {
        axis = Scratch.Cast.toNumber(axis);
        return JSON.parse(vector)[axis];
      }
    )
    .addArgument("axis", null, null, "axisMenu2D")
    .addArgument("vector", "[0,0]");

  math_3d
    .addBlock(
      "get projected [a] to 2D from camera",
      "project2DFromCam",
      Scratch.BlockType.REPORTER,
      ({ a }) => {
        a = JSON.parse(a);

        a[0] -= camera.position[0];
        a[1] -= camera.position[1];
        a[2] -= camera.position[2];

        const sinAndCos = [
          Math.sin(-camera.rotation[0] * d2r),
          Math.cos(-camera.rotation[0] * d2r),
          Math.sin(-camera.rotation[1] * d2r),
          Math.cos(-camera.rotation[1] * d2r),
          Math.sin(-camera.rotation[2] * d2r),
          Math.cos(-camera.rotation[2] * d2r),
        ];

        let temp = a[0];

        a[0] = a[2] * sinAndCos[0] + a[0] * sinAndCos[1];
        a[2] = a[2] * sinAndCos[1] - temp * sinAndCos[0];

        temp = a[1];

        a[1] = a[2] * sinAndCos[2] + a[1] * sinAndCos[3];
        a[2] = a[2] * sinAndCos[3] - temp * sinAndCos[2];

        temp = a[0];

        a[0] = a[1] * sinAndCos[4] + a[0] * sinAndCos[5];
        a[1] = a[1] * sinAndCos[5] - temp * sinAndCos[4];

        let project = fov / a[2];

        return JSON.stringify([a[0] * project, a[1] * project]);
      }
    )
    .addArgument("a", "[0,0,100]");

  math_3d
    .addBlock(
      "get projected [a] to 2D from [b] yaw:[yaw] pitch:[pitch] roll:[roll]",
      "project2DFromPos",
      Scratch.BlockType.REPORTER,
      ({ a, b, yaw, pitch, roll }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);

        a[0] -= b[0];
        a[1] -= b[1];
        a[2] -= b[2];

        const sinAndCos = [
          Math.sin(-yaw * d2r),
          Math.cos(-yaw * d2r),
          Math.sin(-pitch * d2r),
          Math.cos(-pitch * d2r),
          Math.sin(-roll * d2r),
          Math.cos(-roll * d2r),
        ];

        let temp = a[0];

        a[0] = a[2] * sinAndCos[0] + a[0] * sinAndCos[1];
        a[2] = a[2] * sinAndCos[1] - temp * sinAndCos[0];

        temp = a[1];

        a[1] = a[2] * sinAndCos[2] + a[1] * sinAndCos[3];
        a[2] = a[2] * sinAndCos[3] - temp * sinAndCos[2];

        temp = a[0];

        a[0] = a[1] * sinAndCos[4] + a[0] * sinAndCos[5];
        a[1] = a[1] * sinAndCos[5] - temp * sinAndCos[4];

        let project = fov / a[2];

        return JSON.stringify([a[0] * project, a[1] * project]);
      }
    )
    .addArgument("a", "[0,0,100]")
    .addArgument("b", "[0,0,0]")
    .addArgument("yaw", "0")
    .addArgument("pitch", "0")
    .addArgument("roll", "0");

  math_3d.addLabel("Equations");

  math_3d
    .addBlock(
      "V2: [a] + [b]",
      "addV2",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return JSON.stringify([a[0] + b[0], a[1] + b[1]]);
      }
    )
    .addArgument("a", "[0,0]")
    .addArgument("b", "[0,0]");

  math_3d
    .addBlock(
      "V2: [a] - [b]",
      "subV2",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return JSON.stringify([a[0] - b[0], a[1] - b[1], a[2] - b[2]]);
      }
    )
    .addArgument("a", "[0,0]")
    .addArgument("b", "[0,0]");

  math_3d
    .addBlock("[a] * [b]", "mulV2", Scratch.BlockType.REPORTER, ({ a, b }) => {
      a = JSON.parse(a);
      b = JSON.parse(b);
      return JSON.stringify([a[0] * b[0], a[1] * b[1]]);
    })
    .addArgument("a", "[0,0]")
    .addArgument("b", "[0,0]");

  math_3d
    .addBlock(
      "V2: [a] / [b]",
      "divV2",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        const c = [0, 0];
        c[0] = a[0] / b[0];
        c[1] = a[1] / b[1];
        if (isNaN(c[0])) {
          c[0] = 0;
        }

        if (isNaN(c[1])) {
          c[1] = 0;
        }

        return JSON.stringify(c);
      }
    )
    .addArgument("a", "[0,0]")
    .addArgument("b", "[0,0]");

  math_3d
    .addBlock(
      "V2: dot product between [a] and [b]",
      "dotProductOfV3",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return a[0] * b[0] + a[1] * b[1];
      }
    )
    .addArgument("a", "[0,0]")
    .addArgument("b", "[0,0]");

  math_3d
    .addBlock(
      "V2: cross product between [a] and [b]",
      "crossProductOfV2",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);

        const c = [0, 0];

        c[0] = a[1] - b[1];
        c[1] = b[0] - a[0];

        return JSON.stringify(c);
      }
    )
    .addArgument("a", "[0,0]")
    .addArgument("b", "[0,0]");

  math_3d
    .addBlock(
      "V2: magnitude of [a]",
      "magnitudeV2",
      Scratch.BlockType.REPORTER,
      ({ a }) => {
        a = JSON.parse(a);
        return Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2));
      }
    )
    .addArgument("a", "[0,0]");

  math_3d
    .addBlock(
      "V2: distance between [a] and [b]",
      "distanceV2",
      Scratch.BlockType.REPORTER,
      ({ a, b }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);
        return Math.sqrt(Math.pow(a[0] - b[0], 2) + Math.pow(a[1] - b[1], 2));
      }
    )
    .addArgument("a", "[0,0]")
    .addArgument("b", "[0,0]");

  math_3d
    .addBlock(
      "V2: rotate [a] around [b] by [yaw] degrees",
      "rotateAroundPointV2",
      Scratch.BlockType.REPORTER,
      ({ a, b, yaw }) => {
        a = JSON.parse(a);
        b = JSON.parse(b);

        a[0] -= b[0];
        a[1] -= b[1];

        const sinAndCos = [Math.sin(yaw * d2r), Math.cos(yaw * d2r)];

        let temp = a[0];

        a[0] = a[1] * sinAndCos[0] + a[0] * sinAndCos[1];
        a[1] = a[1] * sinAndCos[1] - temp * sinAndCos[0];

        a[0] += b[0];
        a[1] += b[1];

        return JSON.stringify(a);
      }
    )
    .addArgument("a", "[0,0]")
    .addArgument("b", "[0,0]")
    .addArgument("yaw", "0");

  math_3d
    .addBlock(
      "V2: rotate [a] around the center by [yaw] degrees",
      "rotateAroundCenterV2",
      Scratch.BlockType.REPORTER,
      ({ a, yaw }) => {
        a = JSON.parse(a);

        const sinAndCos = [Math.sin(yaw * d2r), Math.cos(yaw * d2r)];

        let temp = a[0];

        a[0] = a[1] * sinAndCos[0] + a[0] * sinAndCos[1];
        a[2] = a[1] * sinAndCos[1] - temp * sinAndCos[0];

        return JSON.stringify(a);
      }
    )
    .addArgument("a", "[0,0]")
    .addArgument("yaw", "0");

  math_3d.addLabel("camera");

  math_3d
    .addBlock(
      "set camera position to [a]",
      "cam3DsetPosition",
      Scratch.BlockType.COMMAND,
      ({ a }) => {
        a = JSON.parse(a);

        if (a) {
          camera.position = a;
        }
      }
    )
    .addArgument("a", "[0,0,0]");

  math_3d.addBlock(
    "get camera position",
    "cam3DgetPosition",
    Scratch.BlockType.REPORTER,
    () => {
      return JSON.stringify(camera.position);
    }
  );

  math_3d
    .addBlock(
      "set camera rotation to [a]",
      "cam3DsetRotation",
      Scratch.BlockType.COMMAND,
      ({ a }) => {
        a = JSON.parse(a);

        if (a) {
          camera.rotation = a;
        }
      }
    )
    .addArgument("a", "[0,0,0]");

  math_3d.addBlock(
    "get camera rotation",
    "cam3DgetRotation",
    Scratch.BlockType.REPORTER,
    () => {
      return JSON.stringify(camera.rotation);
    }
  );

  math_3d.addLabel("sprite 3D");

  math_3d
    .addBlock(
      "set fov to [dist]",
      "setFov",
      Scratch.BlockType.COMMAND,
      ({ dist }) => {
        fov = dist;
      }
    )
    .addArgument("dist", 300);

  math_3d.checkFor3dPositionData = (targetID) => {
    if (!spritePositions[targetID]) {
      spritePositions[targetID] = [0, 0, fov];
    }
  };

  math_3d
    .addBlock(
      "set my position to [a]",
      "spr3DsetPosition",
      Scratch.BlockType.COMMAND,
      ({ a }, util) => {
        const target = util.target;
        math_3d.checkFor3dPositionData(target.id);

        a = JSON.parse(a);

        spritePositions[target.id] = a;
      }
    )
    .addArgument("a", "[0,0,0]")
    .setFilter();

  math_3d
    .addBlock(
      "change my position by [a]",
      "spr3DchangePosition",
      Scratch.BlockType.COMMAND,
      ({ a }, util) => {
        const target = util.target;
        math_3d.checkFor3dPositionData(target.id);

        a = JSON.parse(a);

        spritePositions[target.id][0] += a[0];
        spritePositions[target.id][1] += a[1];
        spritePositions[target.id][2] += a[2];
      }
    )
    .addArgument("a", "[0,0,0]")
    .setFilter();

  math_3d
    .addBlock(
      "my 3d position",
      "spr3DgetPosition",
      Scratch.BlockType.REPORTER,
      (args, util) => {
        const target = util.target;
        math_3d.checkFor3dPositionData(target.id);
        return JSON.stringify(spritePositions[target.id]);
      }
    )
    .setFilter();

  math_3d
    .addBlock(
      "go to my position in 3D",
      "spr3D",
      Scratch.BlockType.COMMAND,
      (args, util) => {
        const target = util.target;
        math_3d.checkFor3dPositionData(target.id);
        const myData = JSON.parse(JSON.stringify(spritePositions[target.id]));

        myData[0] -= camera.position[0];
        myData[1] -= camera.position[1];
        myData[2] -= camera.position[2];

        const sinAndCos = [
          Math.sin(-camera.rotation[0] * d2r),
          Math.cos(-camera.rotation[0] * d2r),
          Math.sin(-camera.rotation[1] * d2r),
          Math.cos(-camera.rotation[1] * d2r),
          Math.sin(-camera.rotation[2] * d2r),
          Math.cos(-camera.rotation[2] * d2r),
        ];

        let temp = myData[0];

        myData[0] = myData[2] * sinAndCos[0] + myData[0] * sinAndCos[1];
        myData[2] = myData[2] * sinAndCos[1] - temp * sinAndCos[0];

        temp = myData[1];

        myData[1] = myData[2] * sinAndCos[2] + myData[1] * sinAndCos[3];
        myData[2] = myData[2] * sinAndCos[3] - temp * sinAndCos[2];

        temp = myData[0];

        myData[0] = myData[1] * sinAndCos[4] + myData[0] * sinAndCos[5];
        myData[1] = myData[1] * sinAndCos[5] - temp * sinAndCos[4];

        let project = fov / myData[2];

        if (myData[2] < 1) {
          target.setVisible(false);
        } else {
          target.setVisible(true);
          target.setSize(100 * project);
          target.setXY(myData[0] * project, myData[1] * project);
        }
      }
    )
    .setFilter();

  //Bad block enable at your own risk!
  /*math_3d
    .addBlock(
      "move to [a] relative to the camera with the distance of [dist]",
      "projectToSprite3D",
      Scratch.BlockType.COMMAND,
      ({ a, dist }, util) => {
        const target = util.target;

        a = JSON.parse(a);

        let project = dist / a[2];

        if (a[2] < 1) {
          target.setVisible(false);
        } else {
          target.setVisible(true);
          target.setSize(100 * project);
          target.setXY(a[0] * project, a[1] * project);
        }

        console.log(util);
      }
    )
    .addArgument("a", "[0,0,0]")
    .addArgument("dist", 300)
    .setVisible(false).setFilter();
*/
  math_3d.register();
})(window.Scratch);