Mercurial > MadButterfly

annotate nodejs/animate.js @ 895:3136db0ac01b abs_n_rel_center

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Merged from default branch
author Thinker K.F. Li <thinker@branda.to>
date Tue, 28 Sep 2010 17:27:01 +0800
parents 3ce9daa9558b 460b2629be30
children b38161a3abae
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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55 sys.puts('x='+obj.center.x+',y='+obj.center.y);
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56 shift = [1, 0, -obj.center.x, 0, 1, -obj.center.y];
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57 mtx = multiply(mtx, shift);
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58 shift = [1, 0, obj.center.x, 0, 1, obj.center.y];
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59 mtx = multiply(shift, mtx);
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60 mtx = multiply(mtx, this._start_mtx);
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61
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62 obj[0] = mtx[0];
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63 obj[1] = mtx[1];
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64 obj[2] = mtx[2];
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65 obj[3] = mtx[3];
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66 obj[4] = mtx[4];
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67 obj[5] = mtx[5];
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68
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69 this._app.refresh();
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70 }
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71
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72 rotate.prototype.draw = rotate_draw;
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73 exports.rotate = rotate;
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74
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75 function multiply(s,d) {
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76 var m=[];
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77 m[0] = s[0]*d[0]+s[1]*d[3];
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78 m[1] = s[0]*d[1]+s[1]*d[4];
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79 m[2] = s[0]*d[2]+s[1]*d[5]+s[2];
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80 m[3] = s[3]*d[0]+s[4]*d[3];
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81 m[4] = s[3]*d[1]+s[4]*d[4];
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82 m[5] = s[3]*d[2]+s[4]*d[5]+s[5];
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83 return m;
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84 }
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85
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86
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87 function scale_draw(percent) {
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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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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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209 var now = Date.now();
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210 var i;
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211
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212 sys.puts("real time is "+now);
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213 sys.puts("end is "+this.end);
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214 if (now >= this.end) {
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215 this.timer.stop();
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216 now = this.end;
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217 }
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218 if (now < this.startmove) return;
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219 sys.puts("now is "+now+" offset is "+(now-this.startmove));
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220 var per = (now-this.startmove)/this.duration/1000;
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221 if (per > 1) per = 1;
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222 this.action.draw(per);
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223 }
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224
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225 function linear_start()
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226 {
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227 var self = this;
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228 if (this.timer)
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229 this.timer.stop();
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230 this.timer = setInterval(function() { self.update();}, frame_interval);
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231 this.startmove = Date.now()+this.starttime*1000;
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232 this.end = this.startmove+this.duration*1000;
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233 }
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234 function linear_stop()
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235 {
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236 if (this.timer) {
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237 this.timer.stop();
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238 this.timer = null;
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239 }
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240 }
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241
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242 function linear_finish()
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243 {
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244 this.action.draw(1);
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245 }
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246 function linear(action,start, duration)
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247 {
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248 this.action = action;
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249 this.duration = duration;
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250 this.starttime = start;
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251 this.timer=null;
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252 }
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253 linear.prototype.update = linear_update;
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254 linear.prototype.start = linear_start;
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255 linear.prototype.stop = linear_stop;
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256 linear.prototype.finish = linear_finish;
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257 exports.linear = linear;
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258
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259
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260 function program(words)
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261 {
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262 this.words = wrods;
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263 }
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264
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265 program.prototype.start=function() {
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266 for(w in this.words) {
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267 w.start();
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268 }
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269 }
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270
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271 program.prototype.stop=function(s) {
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272 for(w in this.words) {
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273 w.stop();
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274 }
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275 }
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276 program.prototype.finish=function() {
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277 for(w in this.words) {
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278 w.finish();
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279 }
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280 }
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281
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282 exports.run = function(actions,start,duration) {
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283 for(a in actions) {
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284 var li = new linear(actions[a],start,duration);
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285 sys.puts(li);
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286 li.start();
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287 }
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288 }
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289 exports.runexp=function(actions,start,exp) {
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290 }