Mercurial > MadButterfly

annotate nodejs/animate.js @ 894:460b2629be30

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author wycc
date Mon, 27 Sep 2010 23:02:45 +0800
parents cad38ddb1253
children 3136db0ac01b
rev   line source
794
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Thinker K.F. Li <thinker@codemud.net>
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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 percent;
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14 this.obj.x = (this.targetx-this.startposx)*percent+this.startposx;
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15 this.obj.y = (this.targety-this.startposy)*percent+this.startposy;
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16 this.app.refresh();
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17 }
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18
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19 function shift(app,obj,shiftx,shifty) {
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20 obj.animated_shift = this;
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21 this.app = app;
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22 this.obj = obj;
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23 this.end = 0;
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24 this.targetx = shiftx + obj.x;
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25 this.targety = shifty + obj.y;
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26 this.startposx = obj.x;
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27 this.startposy = obj.y;
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28 }
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29
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30 exports.shift = shift;
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31 shift.prototype.draw = shift_draw;
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32
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33 /* ------------------------------------------------------------ */
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34 function rotate(app, obj, ang, duration) {
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35 this._app = app;
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36 this._obj = obj;
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37 this._ang = ang;
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38 this._start_mtx = [obj[0], obj[1], obj[2], obj[3], obj[4], obj[5]];
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39 }
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40
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41 function rotate_draw(percent) {
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42 var percent;
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43 var ang;
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44 var sv, cv;
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45 var obj = this._obj;
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46 var mtx, shift;
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47
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48
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49 ang = percent * this._ang;
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50 sv = Math.sin(ang);
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51 cv = Math.cos(ang);
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52 mtx = [cv, -sv, 0, sv, cv, 0];
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53 sys.puts('x='+obj.center.x+',y='+obj.center.y);
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54 shift = [1, 0, -obj.center.x, 0, 1, -obj.center.y];
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55 mtx = multiply(mtx, shift);
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56 shift = [1, 0, obj.center.x, 0, 1, obj.center.y];
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57 mtx = multiply(shift, mtx);
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58 mtx = multiply(mtx, this._start_mtx);
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59
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60 obj[0] = mtx[0];
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61 obj[1] = mtx[1];
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62 obj[2] = mtx[2];
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63 obj[3] = mtx[3];
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64 obj[4] = mtx[4];
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65 obj[5] = mtx[5];
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66
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67 this._app.refresh();
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68 }
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69
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70 rotate.prototype.draw = rotate_draw;
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71 exports.rotate = rotate;
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72
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73 function multiply(s,d) {
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74 var m=[];
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75 m[0] = s[0]*d[0]+s[1]*d[3];
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76 m[1] = s[0]*d[1]+s[1]*d[4];
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77 m[2] = s[0]*d[2]+s[1]*d[5]+s[2];
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78 m[3] = s[3]*d[0]+s[4]*d[3];
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79 m[4] = s[3]*d[1]+s[4]*d[4];
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80 m[5] = s[3]*d[2]+s[4]*d[5]+s[5];
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81 return m;
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82 }
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83
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84
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85 function scale_draw(percent) {
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86 if (this.end == 1) return;
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87 var sx = (this.targetx-this.startsx)*percent+this.startsx;
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88 var sy = (this.targety-this.startsy)*percent+this.startsy;
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89 var t=[sx,0,0,0,sy,0];
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90 this.obj[0] = sx;
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91 this.obj[4] = sy;
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92 this.obj[2] = this.origin_offset_x - (sx-this.startsx)*this.obj.center.x;
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93 this.obj[5] = this.origin_offset_y - (sy-this.startsy)*this.obj.center.y;
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94 sys.puts('x='+this.obj.center.x+',y='+this.obj.center.y);
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95
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96 this.app.refresh();
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97 var self = this;
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98 this.app.refresh();
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99 this.obj.animated_scale = null;
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100 }
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101
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102 function scale(app,obj,targetx,targety, duration) {
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103 try {
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104 if (obj.animated_scale) {
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105 //obj[0] = obj.animated_scale.targetx;
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106 //obj[4] = obj.animated_scale.targety;
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107 //obj[2] = obj.animated_scale.final_offset_x;
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108 //obj[5] = obj.aninated_scale.final_offset_y;
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109 obj.animated_scale.end = 1;
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110 }
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111 } catch(e) {
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112
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113 }
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114 obj.animated_scale = this;
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115 this.app = app;
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116 this.obj = obj;
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117 this.end = 0;
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118 this.starttime = Date.now();
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119 this.startsx = obj[0];
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120 this.startsy = obj[4];
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121 this.targetx = targetx;
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122 this.targety = targety;
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123 this.duration = duration*1000;
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124 this.origin_offset_x = obj[2];
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125 this.origin_offset_y = obj[5];
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126 this.final_offset_x = this.origin_offset_x-(targetx-this.startsx)*obj.center.x;
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127 this.final_offset_y = this.origin_offset_y-(targety-this.startsy)*obj.center.y;
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128 }
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129
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130
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131 exports.scale = scale;
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132 scale.prototype.draw = scale_draw;
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133
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134 function holder(app, coord) {
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135 var mtx = [coord[0], coord[1], coord[2], coord[3], coord[4], coord[5]];
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136
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137 this._mtx = mtx;
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138 this._coord = coord;
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139 this._app = app;
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140 }
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141
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142 holder.prototype = {
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143 go: function(pos) {
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144 var sx, sy;
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145
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146 sx = pos.x - this._coord.center.x;
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147 sy = pos.y - this._coord.center.y;
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148 this.shift(sx, sy);
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149 },
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150
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151 go_center: function(o) {
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152 this.go(o.center);
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153 },
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154
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155 home: function() {
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156 this._coord[2] = this._mtx[2];
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157 this._coord[5] = this._mtx[5];
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158 this._app.refresh();
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159 },
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160
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161 shift: function(sx, sy) {
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162 this._coord[2] = this._mtx[2] + sx;
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163 this._coord[5] = this._mtx[5] + sy;
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164 this._app.refresh();
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165 }
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166 };
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167
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168 exports.holder = holder;
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169
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170
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171
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172 function alpha_draw(percent) {
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173
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174 if (this.end == 1) return;
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175 var sx = (this.targetalpha-this.startalpha)*percent+this.startalpha;
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176 this.obj.opacity=sx;
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177 this.app.refresh();
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178 this.obj.animated_alpha = null;
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179 }
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180
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181 function alpha(app,obj,alpha, duration) {
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182 try {
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183 if (obj.animated_alpha) {
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184 obj.animated_alpha.end = 1;
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185 }
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186 } catch(e) {
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187
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188 }
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189 obj.animated_alpha = this;
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190 this.app = app;
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191 this.obj = obj;
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192 this.end = 0;
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193 this.starttime = Date.now();
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194 this.startalpha = obj.opacity;
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195 this.targetalpha = alpha;
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196 this.duration = duration*1000;
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197 }
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198
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199 alpha.prototype.draw = alpha_draw;
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200 exports.alpha = alpha;
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201
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202 function linear_update()
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203 {
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204 var now = Date.now();
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205 sys.puts("real time is "+now);
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206 sys.puts("end is "+this.end);
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207 if (now >= this.end) {
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208 this.timer.stop();
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209 now = this.end;
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210 }
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211 if (now < this.startmove) return;
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212 sys.puts("now is "+now+" offset is "+(now-this.startmove));
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213 var per = (now-this.startmove)/this.duration/1000;
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214 if (per > 1) per = 1;
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215 this.action.draw(per);
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216 }
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217
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218 function linear_start()
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219 {
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220 var self = this;
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221 if (this.timer)
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222 this.timer.stop();
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223 this.timer = setInterval(function() { self.update();}, frame_interval);
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224 this.startmove = Date.now()+this.starttime*1000;
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225 this.end = this.startmove+this.duration*1000;
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226 }
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227 function linear_stop()
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228 {
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229 if (this.timer) {
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230 this.timer.stop();
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231 this.timer = null;
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232 }
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233 }
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234
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235 function linear_finish()
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236 {
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237 this.action.draw(1);
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238 }
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239 function linear(action,start, duration)
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240 {
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241 this.action = action;
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242 this.duration = duration;
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243 this.starttime = start;
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244 this.timer=null;
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245 }
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246 linear.prototype.update = linear_update;
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247 linear.prototype.start = linear_start;
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248 linear.prototype.stop = linear_stop;
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249 linear.prototype.finish = linear_finish;
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250 exports.linear = linear;
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251
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252
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253 function program(words)
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254 {
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255 this.words = wrods;
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256 }
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257
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258 program.prototype.start=function() {
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259 for(w in this.words) {
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260 w.start();
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261 }
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262 }
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263
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264 program.prototype.stop=function(s) {
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265 for(w in this.words) {
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266 w.stop();
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267 }
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268 }
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269 program.prototype.finish=function() {
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270 for(w in this.words) {
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271 w.finish();
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272 }
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273 }
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274
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275 exports.run = function(actions,start,duration) {
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276 for(a in actions) {
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277 var li = new linear(actions[a],start,duration);
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278 sys.puts(li);
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279 li.start();
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280 }
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281 }
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282 exports.runexp=function(actions,start,exp) {
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283 }