Mercurial > MadButterfly

annotate nodejs/animate.js @ 937:191d3a5f74c8

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Migrate testsvg.js to new interface of shift action.
author Thinker K.F. Li <thinker@codemud.net>
date Fri, 12 Nov 2010 16:54:48 +0800
parents d35f9702b8c2
children 4072a302b207
rev   line source
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1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
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Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
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2 // vim: sw=4:ts=8:sts=4
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3 var sys=require("sys");
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4
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5 /*
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6 * This is configuration for animate module. For slower or speeder
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7 * machines, ffs can be decreased or increased respective.
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8 */
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9 var ffs = 12;
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10 var frame_interval = 1000 / ffs;
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11
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12 function shift_draw(percent) {
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13 var x, y;
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14
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15 x = (this.targetx - this.startposx) * percent + this.startposx;
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16 y = (this.targety - this.startposy) * percent + this.startposy;
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17 this.obj.center.move(x, y);
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18 this._app.refresh();
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19 }
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20
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21 function shift(app,obj,shiftx,shifty) {
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22 obj.animated_shift = this;
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23 this._app = app;
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24 this.obj = obj;
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25 this.end = 0;
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26 this.targetx = shiftx + obj.center.x;
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27 this.targety = shifty + obj.center.y;
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28 this.startposx = obj.center.x;
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29 this.startposy = obj.center.y;
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30 }
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31
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32 exports.shift = shift;
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33 shift.prototype.draw = shift_draw;
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34
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35 /* ------------------------------------------------------------ */
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36 function rotate(app, obj, ang, duration) {
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37 this._app = app;
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38 this._obj = obj;
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39 this._ang = ang;
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40 this._start_mtx = [obj[0], obj[1], obj[2], obj[3], obj[4], obj[5]];
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41 }
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42
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43 function rotate_draw(percent) {
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44 var percent;
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45 var ang;
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46 var sv, cv;
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47 var obj = this._obj;
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48 var mtx, shift;
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49
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50
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51 ang = percent * this._ang;
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52 sv = Math.sin(ang);
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53 cv = Math.cos(ang);
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54 mtx = [cv, -sv, 0, sv, cv, 0];
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9b6c26cf9102 Move bounding box and center back to an object
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55 shift = [1, 0, -obj.center.x, 0, 1, -obj.center.y];
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56 mtx = multiply(mtx, shift);
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57 shift = [1, 0, obj.center.x, 0, 1, obj.center.y];
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58 mtx = multiply(shift, mtx);
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59 mtx = multiply(mtx, this._start_mtx);
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60
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61 obj[0] = mtx[0];
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62 obj[1] = mtx[1];
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63 obj[2] = mtx[2];
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64 obj[3] = mtx[3];
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65 obj[4] = mtx[4];
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66 obj[5] = mtx[5];
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67
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68 this._app.refresh();
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69 }
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70
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71 rotate.prototype.draw = rotate_draw;
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72 exports.rotate = rotate;
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73
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74 function multiply(s,d) {
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75 var m=[];
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76 m[0] = s[0]*d[0]+s[1]*d[3];
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77 m[1] = s[0]*d[1]+s[1]*d[4];
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78 m[2] = s[0]*d[2]+s[1]*d[5]+s[2];
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79 m[3] = s[3]*d[0]+s[4]*d[3];
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80 m[4] = s[3]*d[1]+s[4]*d[4];
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81 m[5] = s[3]*d[2]+s[4]*d[5]+s[5];
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82 return m;
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83 }
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84
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85
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86 function scale_draw(percent) {
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87 if (this.end==1) return;
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88 var sx = 1 + (this.totalsx - 1) * percent;
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89 var sy = 1 + (this.totalsy - 1) * percent;
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90 var sh1 = [1, 0, -this.center_x, 0, 1, -this.center_y];
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91 var sh2 = [1, 0, this.center_x, 0, 1, this.center_y];
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92 var scale = [sx, 0, 0, 0, sy, 0];
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93 var obj = this.obj;
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94 var mtx;
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95
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96 mtx = multiply(scale, sh1);
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97 mtx = multiply(sh2, mtx);
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98 mtx = multiply(this.orig_mtx, mtx);
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99 obj[0] = mtx[0];
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100 obj[1] = mtx[1];
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101 obj[2] = mtx[2];
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102 obj[3] = mtx[3];
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103 obj[4] = mtx[4];
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104 obj[5] = mtx[5];
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105
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106 this.app.refresh();
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107 }
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108
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109 function scale(app, obj, fact_x, fact_y, duration) {
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110 var bbox;
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111
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112 try {
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113 if (obj.animated_scale) {
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114 obj.animated_scale.end = 1;
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115 }
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116 } catch(e) {
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117
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118 }
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119
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120 bbox = obj.bbox;
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121 bbox.update();
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122 obj.animated_scale = this;
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123 this.app = app;
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124 this.obj = obj;
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125 this.end = 0;
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126 this.starttime = Date.now();
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127 this.totalsx = fact_x * bbox.orig.width / bbox.width;
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128 this.totalsy = fact_y * bbox.orig.height / bbox.height;
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129 this.duration = duration*1000;
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130 this.center_x = obj.center.rel.x;
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131 this.center_y = obj.center.rel.y;
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132 this.orig_mtx = [obj[0], obj[1], obj[2], obj[3], obj[4], obj[5]];
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133 }
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134
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135
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136 exports.scale = scale;
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137 scale.prototype.draw = scale_draw;
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138
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139 function holder(app, coord) {
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diff changeset
140 var mtx = [coord[0], coord[1], coord[2], coord[3], coord[4], coord[5]];
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141
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142 this._mtx = mtx;
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143 this._coord = coord;
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144 this._app = app;
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145 }
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146
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147 holder.prototype = {
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148 go: function(pos) {
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149 var sx, sy;
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150
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151 sx = pos.x - this._coord.center.x;
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152 sy = pos.y - this._coord.center.y;
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153 this.shift(sx, sy);
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154 },
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155
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156 go_center: function(o) {
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157 this.go(o.center);
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158 },
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159
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160 home: function() {
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161 this._coord[2] = this._mtx[2];
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162 this._coord[5] = this._mtx[5];
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163 this._app.refresh();
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164 },
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165
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166 shift: function(sx, sy) {
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167 this._coord[2] = this._mtx[2] + sx;
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168 this._coord[5] = this._mtx[5] + sy;
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169 this._app.refresh();
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170 }
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171 };
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172
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173 exports.holder = holder;
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174
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175
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176
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177 function alpha_draw(percent) {
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178
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179 if (this.end == 1) return;
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180 var sx = (this.targetalpha-this.startalpha)*percent+this.startalpha;
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181 this.obj.opacity=sx;
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182 this.app.refresh();
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183 this.obj.animated_alpha = null;
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184 }
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185
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186 function alpha(app,obj,alpha, duration) {
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187 try {
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188 if (obj.animated_alpha) {
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189 obj.animated_alpha.end = 1;
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190 }
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191 } catch(e) {
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192
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193 }
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194 obj.animated_alpha = this;
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195 this.app = app;
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196 this.obj = obj;
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197 this.end = 0;
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198 this.starttime = Date.now();
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199 this.startalpha = obj.opacity;
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200 this.targetalpha = alpha;
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201 this.duration = duration*1000;
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202 }
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203
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204 alpha.prototype.draw = alpha_draw;
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205 exports.alpha = alpha;
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206
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207 function linear_update()
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208 {
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diff changeset
209 var now = Date.now();
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210 var i;
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211
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212 if (now >= this.end) {
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213 this.timer.stop();
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214 now = this.end;
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215 if (this.callback_end) {
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216 this.callback_end();
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217 this.callback_end=null;
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218 }
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219 }
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diff changeset
220 if (now < this.startmove) return;
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221 var per = (now-this.startmove)/this.duration/1000;
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222 if (per > 1) per = 1;
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223 this.action.draw(per);
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224 }
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225
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diff changeset
226 function linear_start()
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227 {
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228 var self = this;
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229 if (this.timer)
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230 this.timer.stop();
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diff changeset
231 this.timer = setInterval(function() { self.update();}, frame_interval);
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232 this.startmove = Date.now()+this.starttime*1000;
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233 this.end = this.startmove+this.duration*1000;
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234 }
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diff changeset
235 function linear_stop()
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diff changeset
236 {
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237 if (this.timer) {
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238 this.timer.stop();
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239 this.timer = null;
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240 }
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241 }
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242
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243 function linear_finish()
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244 {
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245 this.action.draw(1);
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246 if (this.callback_end) {
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247 this.callback_end();
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248 this.callback_end=null;
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249 }
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250 }
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251 function linear(action,start, duration)
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252 {
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253 this.action = action;
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254 this.duration = duration;
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255 this.starttime = start;
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256 this.callback_end = null;
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257 this.timer=null;
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258 }
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259
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260 function linear_callback(cb)
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261 {
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262 this.callback_end = cb;
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263 }
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264
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265 linear.prototype.update = linear_update;
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266 linear.prototype.start = linear_start;
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267 linear.prototype.stop = linear_stop;
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268 linear.prototype.finish = linear_finish;
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269 linear.prototype.callbackAtEnd = linear_callback;
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diff changeset
270 exports.linear = linear;
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271
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272
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273 function multilinear_update()
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274 {
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275 }
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276
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277 function multilinear_start()
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278 {
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279 }
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280
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281 function multilinear_stop()
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282 {
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283 }
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284
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285 function multilinear_finish()
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286 {
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287 }
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288 function multilinear(action,start,stages) {
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289 sys.puts("Multilinear word is not implemented yet");
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290 }
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291
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292 exports.multilinear = multilinear;
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293 multilinear.prototype.update = multilinear_update;
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294 multilinear.prototype.start = multilinear_start;
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295 multilinear.prototype.stop = multilinear_stop;
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296 multilinear.prototype.finish = multilinear_finish;
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297 function exponential_update()
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298 {
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299 }
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300 function exponential_start()
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301 {
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302 }
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303 function exponential_stop()
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304 {
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305 }
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306 function exponential_finish()
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307 {
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308 }
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309 function exponential(action,start,stages) {
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310 sys.puts("exponential word is not implemented yet");
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311 }
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312
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313 exports.exponential = exponential;
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314 exponential.prototype.update = exponential_update;
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315 exponential.prototype.start = exponential_start;
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316 exponential.prototype.stop = exponential_stop;
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317 exponential.prototype.finish = exponential_finish;
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318
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319 function program(words)
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320 {
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321 this.words = wrods;
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322 }
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323
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324 program.prototype.start=function() {
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325 for(w in this.words) {
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326 w.start();
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327 }
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328 }
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329
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330 program.prototype.step=function(s) {
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331 sys.puts("This function is not implemented yet");
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332 }
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333 program.prototype.stop=function() {
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334 for(w in this.words) {
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335 w.stop();
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336 }
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337 }
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338 program.prototype.finish=function() {
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339 for(w in this.words) {
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340 w.finish();
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341 }
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342 }
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343
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344 exports.run = function(actions,start,duration,cb) {
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345 var li;
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346 for(a in actions) {
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347 li = new linear(actions[a],start,duration);
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348 li.start();
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349 }
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350 li.callbackAtEnd(cb);
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351 }
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352 exports.runexp=function(actions,start,exp) {
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353 sys.puts("This function is not implemented yet");
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354 }
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355