1 | function GraphicsEngine(context, width, height) { |
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2 | this._scene = undefined; |
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3 | this._camera = undefined; |
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4 | this._renderer = undefined; |
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5 | this._canvasWidth = width; |
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6 | this._canvasHeight = height; |
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7 | this._containerContextName = context; |
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8 | this._BALL_RADIUS = 0.25; |
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9 | this._controls = undefined; |
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10 | this._parts = [] |
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11 | this._debug1 = 0 |
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12 | this._showAxis = false; |
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13 | this._render = true; |
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14 | } |
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15 | |
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16 | GraphicsEngine.prototype.showPartAxis = function () { |
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17 | this._showAxis = true; |
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18 | } |
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19 | |
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20 | GraphicsEngine.prototype._createRenderer = function () { |
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21 | this._renderer = new THREE.WebGLRenderer({antialias: true}); |
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22 | this._renderer.setClearColor(0x000000, 1); |
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23 | this._renderer.setSize(this._canvasWidth, this._canvasHeight); |
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24 | this._containerContextName.append(this._renderer.domElement); |
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25 | |
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26 | var self = this; |
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27 | this._renderer.domElement.addEventListener('mousemove', function(evt){ |
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28 | self._render = true; |
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29 | }); |
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30 | } |
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31 | |
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32 | GraphicsEngine.prototype._prepareCamera = function () { |
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33 | this._camera = new THREE.PerspectiveCamera(45, this._canvasWidth / this._canvasHeight, 1, 100); |
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34 | this._camera.position.set(0, 0, 10); |
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35 | this._camera.lookAt(this._scene.position); |
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36 | this._scene.add(this._camera); |
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37 | } |
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38 | |
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39 | GraphicsEngine.prototype._addLight = function () { |
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40 | var directionalLight = new THREE.DirectionalLight(0xffffff); |
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41 | |
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42 | directionalLight.position = this._camera.position; |
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43 | directionalLight.intensity = 1; |
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44 | |
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45 | this._scene.add(directionalLight); |
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46 | } |
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47 | |
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48 | GraphicsEngine.prototype._rotateObject = function (object, part) { |
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49 | object.rotateX(part.getXrot()); |
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50 | object.rotateY(-part.getYrot()); |
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51 | object.rotateZ(part.getZrot()); |
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52 | } |
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53 | |
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54 | GraphicsEngine.prototype._addBall = function (part) { |
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55 | var segments = 40, |
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56 | rings = 40; |
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57 | |
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58 | var sphereMaterial = |
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59 | new THREE.MeshPhongMaterial( |
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60 | { |
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61 | color: 0xffffff |
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62 | }); |
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63 | sphereMaterial.color.setRGB(part.getR(), part.getG(), part.getB()) |
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64 | |
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65 | var ball = new THREE.Mesh( |
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66 | new THREE.SphereGeometry(part.getRadius()/4, |
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67 | segments, |
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68 | rings), |
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69 | sphereMaterial); |
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70 | |
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71 | ball.position.set(part.getX(), part.getY(), part.getZ()); |
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72 | this._rotateObject(ball, part); |
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73 | |
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74 | |
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75 | this._parts.push(ball); |
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76 | if(this._showAxis) |
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77 | ball.add(new THREE.AxisHelper(1)); |
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78 | this._scene.add(ball); |
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79 | } |
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80 | |
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81 | GraphicsEngine.prototype._debugShow = function(object) |
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82 | { |
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83 | var pos = object.position; |
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84 | var scale = object.scale; |
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85 | var rot = object.rotation |
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86 | //console.log(pos.x, pos.y, pos.z , "|", rot.x, rot.y, rot.z,"|", scale.x, scale.y, scale.z); |
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87 | } |
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88 | |
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89 | GraphicsEngine.prototype._addEllipsoid = function (part) { |
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90 | var geometry = new THREE.SphereGeometry(1, 20, 20); |
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91 | var ellipsoidMaterial = new THREE.MeshPhongMaterial({color: 0xffffff}); |
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92 | ellipsoidMaterial.color.setRGB(part.getR(), part.getG(), part.getB()) |
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93 | |
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94 | var ellipsoid = new THREE.Mesh(geometry, ellipsoidMaterial); |
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95 | ellipsoid.scale.set(part.getXshape(), part.getYshape(), part.getZshape()) |
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96 | ellipsoid.position.set(part.getX(), part.getY(), part.getZ()); |
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97 | this._rotateObject(ellipsoid, part); |
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98 | |
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99 | this._parts.push(ellipsoid); |
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100 | if(this._showAxis) |
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101 | ellipsoid.add(new THREE.AxisHelper(1)); |
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102 | |
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103 | this._scene.add(ellipsoid); |
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104 | } |
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105 | |
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106 | GraphicsEngine.prototype._addCylinder = function (part) { |
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107 | var geometry = new THREE.CylinderGeometry(1, 1, 1, 10, 10, false); |
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108 | |
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109 | var material = new THREE.MeshLambertMaterial({color: 0xffffff}); |
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110 | material.color.setRGB(part.getR(), part.getG(), part.getB()); |
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111 | |
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112 | var cylinder = new THREE.Mesh(geometry, material); |
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113 | |
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114 | cylinder.scale.set(part.getXshape(), part.getYshape(), part.getZshape()) |
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115 | cylinder.position.set(part.getX(), part.getY(), part.getZ()); |
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116 | this._rotateObject(cylinder, part); |
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117 | |
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118 | this._parts.push(cylinder); |
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119 | if(this._showAxis) |
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120 | cylinder.add(new THREE.AxisHelper(5)); |
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121 | |
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122 | this._scene.add(cylinder); |
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123 | |
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124 | } |
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125 | |
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126 | GraphicsEngine.prototype._addCuboid = function (part) { |
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127 | var geometry = new THREE.CubeGeometry(2, 2, 2, 10, 10, 10); |
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128 | //TODO: poprawić getXshape na getXscale |
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129 | |
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130 | var material = new THREE.MeshLambertMaterial({color: 0xffffff}); |
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131 | material.color.setRGB(part.getR(), part.getG(), part.getB()); |
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132 | |
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133 | var cube = new THREE.Mesh(geometry, material); |
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134 | cube.scale.set(part.getXshape(), part.getYshape(), part.getZshape()) |
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135 | cube.position.set(part.getX(), part.getY(), part.getZ()); |
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136 | this._rotateObject(cube, part); |
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137 | |
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138 | this._parts.push(cube); |
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139 | if(this._showAxis) |
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140 | cube.add(new THREE.AxisHelper(1)); |
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141 | this._scene.add(cube); |
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142 | } |
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143 | |
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144 | GraphicsEngine.prototype.addPart = function (part) { |
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145 | //console.log(part.getX(),part.getY(),part.getZ(), "|", part.getXshape(),part.getYshape(),part.getZshape(),"|",part.getXrot(),part.getYrot(),part.getZrot()) |
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146 | switch (part.getType()) { |
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147 | case 0: |
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148 | this._addBall(part); |
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149 | break; |
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150 | case 1: |
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151 | this._addEllipsoid(part); |
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152 | break; |
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153 | case 2: |
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154 | this._addCuboid(part); |
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155 | break; |
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156 | case 3: |
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157 | this._addCylinder(part); |
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158 | break; |
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159 | default : |
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160 | throw new Error("Unknown shape of part"); |
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161 | break; |
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162 | } |
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163 | } |
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164 | |
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165 | GraphicsEngine.prototype._addStick = function (joint) { |
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166 | |
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167 | var p1Pos = this._parts[joint.getP1()].position; |
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168 | var p2Pos = this._parts[joint.getP2()].position; |
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169 | var p1Vector = new THREE.Vector3(p1Pos.x, p1Pos.y, p1Pos.z); |
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170 | var p2Vector = new THREE.Vector3(p2Pos.x, p2Pos.y, p2Pos.z); |
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171 | |
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172 | var HALF_PI = Math.PI * .5; |
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173 | var distance = p1Vector.distanceTo(p2Vector); |
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174 | var position = p2Vector.clone().add(p1Vector).divideScalar(2); |
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175 | |
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176 | var material = new THREE.MeshPhongMaterial({color: 0x0000ff}); |
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177 | material.color.setRGB(joint.getR(), joint.getG(), joint.getB()); |
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178 | |
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179 | var cylinder = new THREE.CylinderGeometry(0.05, 0.05, distance, 20, 20, false); |
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180 | |
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181 | var orientation = new THREE.Matrix4();//a new orientation matrix to offset pivot |
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182 | var offsetRotation = new THREE.Matrix4();//a matrix to fix pivot rotation |
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183 | orientation.lookAt(p1Vector, p2Vector, new THREE.Vector3(0, 1, 0));//look at destination |
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184 | offsetRotation.makeRotationX(HALF_PI);//rotate 90 degs on X |
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185 | orientation.multiply(offsetRotation);//combine orientation with rotation transformations |
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186 | cylinder.applyMatrix(orientation); |
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187 | |
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188 | var mesh = new THREE.Mesh(cylinder, material); |
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189 | mesh.position = position; |
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190 | |
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191 | this._scene.add(mesh); |
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192 | } |
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193 | |
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194 | GraphicsEngine.prototype._hasTranslation = function (joint) { |
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195 | if (joint.getXtran() != 0) |
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196 | return true; |
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197 | if (joint.getYtran() != 0) |
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198 | return true; |
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199 | if (joint.getZtran() != 0) |
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200 | return true; |
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201 | |
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202 | return false; |
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203 | } |
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204 | |
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205 | GraphicsEngine.prototype._translate = function (joint) { |
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206 | |
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207 | if(this._hasTranslation(joint)) |
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208 | { |
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209 | var p1 = joint.getP1(); |
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210 | var p2 = joint.getP2(); |
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211 | |
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212 | var copy = this._parts[p1].clone(); |
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213 | |
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214 | copy.rotateX(joint.getXrot()); |
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215 | copy.rotateY(-joint.getYrot()); |
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216 | copy.rotateZ(joint.getZrot()); |
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217 | |
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218 | copy.translateX(joint.getXtran()); |
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219 | copy.translateY(joint.getYtran()); |
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220 | copy.translateZ(joint.getZtran()); |
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221 | |
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222 | this._parts[p2].position = copy.position.clone(); |
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223 | this._parts[p2].rotation = copy.rotation.clone(); |
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224 | |
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225 | delete copy; |
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226 | } |
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227 | } |
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228 | |
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229 | GraphicsEngine.prototype.addJoint = function (joint) { |
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230 | switch (joint.getType()) { |
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231 | case 0: |
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232 | this._translate(joint); |
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233 | this._addStick(joint); |
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234 | break; |
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235 | case 1: |
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236 | this._translate(joint); |
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237 | break; |
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238 | default : |
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239 | throw new Error("Unknown shape of joint"); |
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240 | break; |
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241 | } |
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242 | } |
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243 | |
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244 | GraphicsEngine.prototype.initializeScene = function () { |
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245 | |
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246 | this._createRenderer(); |
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247 | this._scene = new THREE.Scene(); |
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248 | this._prepareCamera(); |
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249 | this._addLight(); |
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250 | this._controls = new THREE.TrackballControls(this._camera, this._renderer.domElement) |
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251 | this._debug(); |
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252 | |
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253 | |
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254 | |
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255 | } |
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256 | |
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257 | GraphicsEngine.prototype.renderScene = function () { |
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258 | |
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259 | var self = this; |
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260 | requestAnimationFrame( |
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261 | function () { |
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262 | self.renderScene(); |
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263 | }); |
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264 | |
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265 | if(!this._render) |
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266 | { |
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267 | return; |
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268 | } |
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269 | |
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270 | this._renderer.render(this._scene, this._camera); |
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271 | this._controls.update(); |
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272 | this._render = false; |
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273 | } |
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274 | |
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275 | GraphicsEngine.prototype._debug = function() |
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276 | { |
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277 | this._scene.add(new THREE.AxisHelper( 20 )); |
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278 | } |
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279 | |
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280 | GraphicsEngine.prototype.debugTest = function() |
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281 | { |
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282 | for(var i = 0; i < this._parts.length; i++) |
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283 | this._debugShow(this._parts[i]); |
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284 | } |
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285 | |
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