[880] | 1 | class ShapeTransformations { |
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| 2 | |
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| 3 | /** |
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| 4 | * Basic constructor for Transformations class. |
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| 5 | * Initializes fields partShapes and jointShapes with getPartShapes and |
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| 6 | * getJointsShapes results. |
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| 7 | */ |
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| 8 | constructor() { |
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| 9 | this.partShapes = this.getPartShapes(); |
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| 10 | this.jointShapes = this.getJointShapes(); |
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| 11 | } |
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| 12 | |
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| 13 | /** |
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| 14 | * Getter for Part shapes informations. |
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| 15 | * @returns {ShapeInfo[]} basic info about shapes of parts |
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| 16 | */ |
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| 17 | getPartShapes() { |
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| 18 | let shapes = []; |
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| 19 | shapes["SHAPE_BALL_AND_STICK"] = { name: "Ball & Stick", value: Module.Part["SHAPE_BALL_AND_STICK"] }; |
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| 20 | shapes["SHAPE_ELLIPSOID"] = { name: "Elipsoid", value: Module.Part["SHAPE_ELLIPSOID"] }; |
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| 21 | shapes["SHAPE_CUBOID"] = { name: "Cuboid", value: Module.Part["SHAPE_CUBOID"] }; |
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| 22 | shapes["SHAPE_CYLINDER"] = { name: "Cylinder", value: Module.Part["SHAPE_CYLINDER"] }; |
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| 23 | return shapes; |
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| 24 | } |
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| 25 | |
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| 26 | /** |
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| 27 | * Getter for Joint shapes informations. |
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| 28 | * @returns {ShapeInfo[]} basic info about shapes of joints |
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| 29 | */ |
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| 30 | getJointShapes() { |
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| 31 | let shapes = []; |
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| 32 | shapes["SHAPE_BALL_AND_STICK"] = { name: "Ball & Stick", value: Module.Joint["SHAPE_BALL_AND_STICK"] }; |
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| 33 | shapes["SHAPE_FIXED"] = { name: "Fixed", value: Module.Joint["SHAPE_FIXED"] }; |
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| 34 | return shapes; |
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| 35 | } |
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| 36 | |
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| 37 | /** |
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| 38 | * Recursive method for checking which elements are affected by transformations of object. |
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| 39 | * This is internal method that should not be called. |
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| 40 | * @param {BodyElement} bodyElement bodyelement, for which connected elements are checked for affection |
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| 41 | * @param {object} result {partElements: PartMesh[], jointElements: JointMesh[]} that is result of recursive call |
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| 42 | */ |
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| 43 | getAffectedElements_r(bodyElement, result) { |
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| 44 | if (bodyElement.marked) { |
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| 45 | return; |
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| 46 | } |
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| 47 | |
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| 48 | if (bodyElement.type == "p") { |
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| 49 | |
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| 50 | bodyElement.marked = true; |
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| 51 | result.partElements.push(bodyElement); |
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| 52 | |
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| 53 | for (let i = 0; i < bodyElement.connectedJoints.length; ++i) { |
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| 54 | let joint = bodyElement.connectedJoints[i]; |
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| 55 | if (!joint.marked) { |
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| 56 | joint.marked = true; |
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| 57 | result.jointElements.push(joint); |
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| 58 | if (joint.data.get_usedelta()) { |
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| 59 | this.getAffectedElements_r(joint.connectedParts[1], result); |
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| 60 | } |
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| 61 | } |
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| 62 | } |
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| 63 | |
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| 64 | } |
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| 65 | else if (bodyElement.type == "j") { |
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| 66 | bodyElement.marked = true; |
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| 67 | result.jointElements.push(bodyElement); |
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| 68 | |
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| 69 | this.getAffectedElements_r(bodyElement.connectedParts[1], result); |
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| 70 | } |
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| 71 | } |
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| 72 | |
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| 73 | /** |
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| 74 | * Function that finds affected elements with function getAffectedElements_r |
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| 75 | * and returns all affected parts and joints |
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| 76 | * @param {BodyElement} bodyElement bodyelement, for which connected elements are checked for affection |
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| 77 | * @returns {object} {partElements: PartMesh[], jointElements: JointMesh[]} that is result of recursive call |
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| 78 | */ |
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| 79 | getAffectedElements(bodyElement) { |
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| 80 | let result = { |
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| 81 | partElements: [], |
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| 82 | jointElements: [] |
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| 83 | }; |
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| 84 | |
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| 85 | this.getAffectedElements_r(bodyElement, result); |
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| 86 | |
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| 87 | for (let j = 0; j < result.partElements.length; ++j) { |
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| 88 | result.partElements[j].marked = false; |
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| 89 | } |
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| 90 | for (let k = 0; k < result.jointElements.length; ++k) { |
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| 91 | result.jointElements[k].marked = false; |
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| 92 | } |
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| 93 | return result; |
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| 94 | } |
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| 95 | |
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| 96 | /** |
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| 97 | * Helper for clamping colors from Framsticks-SDK to 0-1 values |
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| 98 | * @param {number} value density of color |
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| 99 | * @returns {number} clamped color |
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| 100 | */ |
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| 101 | calcColorComponent(value) { |
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| 102 | return THREE.Math.clamp(value, 0, 1); |
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| 103 | } |
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| 104 | |
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| 105 | /** |
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| 106 | * Applies color for a given element |
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| 107 | * @param {BodyElement} bodyElement body element to color |
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| 108 | * @param {number} component which component should be changed |
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| 109 | * @param {number} value new value of component |
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| 110 | */ |
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| 111 | applyColor(bodyElement, component, value) { |
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| 112 | bodyElement.mesh.material.color[component] = this.calcColorComponent(value); |
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| 113 | } |
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| 114 | |
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| 115 | /** |
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| 116 | * Creates new phong material for Mesh |
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| 117 | * @param {number} r color red |
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| 118 | * @param {number} g color green |
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| 119 | * @param {number} b color blue |
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| 120 | * @returns {MeshPhongMaterial} new material for Mesh |
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| 121 | */ |
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| 122 | getNewMaterial(r, g, b) { |
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| 123 | let color = new THREE.Color( |
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| 124 | this.calcColorComponent(r), |
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| 125 | this.calcColorComponent(g), |
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| 126 | this.calcColorComponent(b)); |
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| 127 | return new THREE.MeshPhongMaterial({ color: color }); |
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| 128 | } |
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| 129 | |
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| 130 | /** |
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| 131 | * Returns THREE.js object representing rotation matrix based on XYZ axis |
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| 132 | * rotation angles. |
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| 133 | * @param {number} rotAngleX angle of rotation for X axis |
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| 134 | * @param {number} rotAngleY angle of rotation for Y axis |
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| 135 | * @param {number} rotAngleZ angle of rotation for Z axis |
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| 136 | * @returns {THREE.Euler} rotation matrix to be applied for model |
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| 137 | */ |
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| 138 | getPartRotation(rotAngleX, rotAngleY, rotAngleZ) { |
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| 139 | return new THREE.Euler(rotAngleX, -rotAngleY, rotAngleZ, "ZYX"); |
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| 140 | } |
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| 141 | |
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| 142 | /** |
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| 143 | * Creates rotation matrix for cylinder Part |
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| 144 | * @param {number} rotAngleX rotate coordinate |
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| 145 | * @param {number} rotAngleY rotate coordinate |
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| 146 | * @param {number} rotAngleZ rotate coordinate |
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| 147 | * @returns {Matrix4} rotation matrix for cylinder Part |
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| 148 | */ |
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| 149 | getCylinderPartRotationMatrix(rotAngleX, rotAngleY, rotAngleZ) { |
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| 150 | let rot = this.getPartRotation(rotAngleX, rotAngleY, rotAngleZ); |
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| 151 | |
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| 152 | let m = new THREE.Matrix4(); |
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| 153 | m.makeRotationZ(THREE.Math.degToRad(90)); |
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| 154 | |
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| 155 | let m2 = new THREE.Matrix4(); |
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| 156 | m2.makeRotationFromEuler(rot); |
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| 157 | m2.multiply(m); |
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| 158 | return m2; |
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| 159 | } |
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| 160 | |
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| 161 | /** |
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| 162 | * Applies rotation on a single part |
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| 163 | * @param {BodyElement} bodyElement element on which rotation will be performed |
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| 164 | */ |
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| 165 | applySinglePartRotation(bodyElement) { |
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| 166 | let shape = bodyElement.data.get_shape(); |
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| 167 | let rot = bodyElement.data.get_o().getAngles(); |
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| 168 | |
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| 169 | if (this.partShapes['SHAPE_CYLINDER'].value == shape) { |
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| 170 | let m = this.getCylinderPartRotationMatrix( |
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| 171 | rot.get_x(), |
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| 172 | rot.get_y(), |
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| 173 | rot.get_z()); |
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| 174 | bodyElement.mesh.rotation.setFromRotationMatrix(m); |
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| 175 | } |
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| 176 | else { |
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| 177 | let r = this.getPartRotation(rot.get_x(), rot.get_y(), rot.get_z()); |
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| 178 | bodyElement.mesh.rotation.copy(r); |
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| 179 | } |
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| 180 | } |
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| 181 | |
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| 182 | /** |
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| 183 | * Applies rotation on a bodyElement part and all other affected elements. |
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| 184 | * @param {BodyElement} bodyElement element on which rotation will be performed |
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| 185 | */ |
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| 186 | applyPartRotation(bodyElement) { |
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| 187 | |
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| 188 | let affectedElements = this.getAffectedElements(bodyElement); |
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| 189 | |
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| 190 | if (affectedElements.partElements.length > 1) { |
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| 191 | for (let i = 0; i < affectedElements.partElements.length; ++i) { |
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| 192 | let part = affectedElements.partElements[i]; |
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| 193 | part.mesh.position.x = part.data.get_p().get_x(); |
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| 194 | part.mesh.position.y = part.data.get_p().get_y(); |
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| 195 | part.mesh.position.z = part.data.get_p().get_z(); |
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| 196 | this.applySinglePartRotation(part); |
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| 197 | } |
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| 198 | let jointMeshFactory = new JointMeshFactory(this.jointShapes); |
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| 199 | for (let j = 0; j < affectedElements.jointElements.length; ++j) { |
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| 200 | let newJointMesh = jointMeshFactory.create(affectedElements.jointElements[j].data); |
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| 201 | this.changeBodyElementMesh(affectedElements.jointElements[j], newJointMesh); |
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| 202 | } |
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| 203 | } else { |
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| 204 | this.applySinglePartRotation(bodyElement); |
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| 205 | } |
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| 206 | |
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| 207 | } |
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| 208 | |
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| 209 | /** |
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| 210 | * Redefines all affected joints due to part changes |
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| 211 | * @param {BodyElement} bodyElement starting element |
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| 212 | */ |
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| 213 | applyJointDeltaChange(bodyElement) { |
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| 214 | |
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| 215 | let affectedElements = this.getAffectedElements(bodyElement); |
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| 216 | |
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| 217 | for (let i = 0; i < affectedElements.partElements.length; ++i) { |
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| 218 | let part = affectedElements.partElements[i]; |
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| 219 | part.mesh.position.x = part.data.get_p().get_x(); |
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| 220 | part.mesh.position.y = part.data.get_p().get_y(); |
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| 221 | part.mesh.position.z = part.data.get_p().get_z(); |
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| 222 | this.applySinglePartRotation(part); |
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| 223 | } |
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| 224 | let jointMeshFactory = new JointMeshFactory(this.jointShapes); |
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| 225 | for (let j = 0; j < affectedElements.jointElements.length; ++j) { |
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| 226 | let newJointMesh = jointMeshFactory.create(affectedElements.jointElements[j].data); |
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| 227 | this.changeBodyElementMesh(affectedElements.jointElements[j], newJointMesh); |
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| 228 | } |
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| 229 | |
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| 230 | } |
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| 231 | |
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| 232 | /** |
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| 233 | * Applies scale to a part |
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| 234 | * @param {BodyElement} bodyElement element to be scaled |
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| 235 | */ |
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| 236 | applyPartScale(bodyElement) { |
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| 237 | let part = bodyElement.data; |
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| 238 | let shape = part.get_shape(); |
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| 239 | if (this.partShapes['SHAPE_CYLINDER'].value == shape) { |
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| 240 | bodyElement.mesh.scale.set( |
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| 241 | part.get_scale().get_y(), |
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| 242 | part.get_scale().get_x(), |
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| 243 | part.get_scale().get_z()); |
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| 244 | } else if (this.partShapes['SHAPE_BALL_AND_STICK'].value != shape) { |
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| 245 | bodyElement.mesh.scale.set( |
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| 246 | part.get_scale().get_x(), |
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| 247 | part.get_scale().get_y(), |
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| 248 | part.get_scale().get_z()); |
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| 249 | } |
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| 250 | } |
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| 251 | |
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| 252 | /** |
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| 253 | * Replaces old mesh of an element with a new mesh |
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| 254 | * @param {BodyElement} element Element to be changed |
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| 255 | * @param {Mesh} newMesh New mesh for element |
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| 256 | */ |
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| 257 | changeBodyElementMesh(element, newMesh) { |
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| 258 | let scene = element.mesh.parent; |
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| 259 | let oldMesh = element.mesh; |
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| 260 | |
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| 261 | let userData = oldMesh.userData; |
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| 262 | userData.showTransparent = newMesh.userData.showTransparent; |
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| 263 | userData.mesh = newMesh.userData.mesh; |
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| 264 | newMesh.userData = userData; |
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| 265 | |
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| 266 | scene.remove(oldMesh); |
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| 267 | scene.add(newMesh); |
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| 268 | |
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| 269 | oldMesh.geometry.dispose(); |
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| 270 | oldMesh.geometry = null; |
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| 271 | oldMesh.material.dispose(); |
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| 272 | oldMesh.material = null; |
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| 273 | } |
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| 274 | |
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| 275 | /** |
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| 276 | * Changes Part position. |
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| 277 | * @param {BodyElement} bodyElement element to be changed |
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| 278 | * @param {string} axis which axis should be changed |
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| 279 | */ |
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| 280 | applyPartPosition(bodyElement, axis) { |
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| 281 | let jointMeshFactory = new JointMeshFactory(this.jointShapes); |
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| 282 | |
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| 283 | let affectedElements = this.getAffectedElements(bodyElement); |
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| 284 | for (let i = 0; i < affectedElements.partElements.length; ++i) { |
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| 285 | affectedElements.partElements[i].mesh.position[axis] = |
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| 286 | affectedElements.partElements[i].data.get_p()["get_" + axis](); |
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| 287 | } |
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| 288 | for (let j = 0; j < affectedElements.jointElements.length; ++j) { |
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| 289 | let newJointMesh = jointMeshFactory.create(affectedElements.jointElements[j].data); |
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| 290 | this.changeBodyElementMesh(affectedElements.jointElements[j], newJointMesh); |
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| 291 | } |
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| 292 | } |
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| 293 | |
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| 294 | /** |
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| 295 | * Updates all affected elements positions. |
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| 296 | * @param {BodyElement} bodyElement beginning element |
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| 297 | */ |
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| 298 | updateAfterPartTranslation(bodyElement) { |
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| 299 | let jointMeshFactory = new JointMeshFactory(this.jointShapes); |
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| 300 | |
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| 301 | let affectedElements = this.getAffectedElements(bodyElement); |
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| 302 | for (let i = 0; i < affectedElements.partElements.length; ++i) { |
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| 303 | let currentElement = affectedElements.partElements[i]; |
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| 304 | if (currentElement !== bodyElement) { |
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| 305 | affectedElements.partElements[i].mesh.position.x = |
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| 306 | affectedElements.partElements[i].data.get_p().get_x(); |
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| 307 | affectedElements.partElements[i].mesh.position.y = |
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| 308 | affectedElements.partElements[i].data.get_p().get_y(); |
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| 309 | affectedElements.partElements[i].mesh.position.z = |
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| 310 | affectedElements.partElements[i].data.get_p().get_z(); |
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| 311 | } |
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| 312 | } |
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| 313 | for (let j = 0; j < affectedElements.jointElements.length; ++j) { |
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| 314 | let newJointMesh = jointMeshFactory.create(affectedElements.jointElements[j].data); |
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| 315 | this.changeBodyElementMesh(affectedElements.jointElements[j], newJointMesh); |
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| 316 | } |
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| 317 | } |
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| 318 | |
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| 319 | /** |
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| 320 | * Creates Part shape and removes old shape. |
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| 321 | * @param {PartMesh} bodyElement part to be applied |
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| 322 | */ |
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| 323 | applyPartShape(bodyElement) { |
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| 324 | let partMeshFactory = new PartMeshFactory(this.partShapes); |
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| 325 | let newPartMesh = partMeshFactory.create(bodyElement.data); |
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| 326 | this.changeBodyElementMesh(bodyElement, newPartMesh); |
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| 327 | } |
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| 328 | |
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| 329 | /** |
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| 330 | * Creates Joint shape and removes old shape. |
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| 331 | * @param {JointMesh} bodyElement joint to be applied |
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| 332 | */ |
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| 333 | applyJointShape(bodyElement) { |
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| 334 | let jointMeshFactory = new JointMeshFactory(this.jointShapes); |
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| 335 | let newJointMesh = jointMeshFactory.create(bodyElement.data); |
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| 336 | this.changeBodyElementMesh(bodyElement, newJointMesh); |
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| 337 | } |
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| 338 | } |
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