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annotate nodejs/animate.js @ 854:eff2f580b536 abs_n_rel_center

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Use accessor to return bbox values
author Thinker K.F. Li <thinker@codemud.net>
date Mon, 20 Sep 2010 22:43:43 +0800
parents 3c48a77b75d3
children 88f4916a0691
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 linear_draw() {
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13 var percent;
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14 var x, y;
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15
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16 percent = (Date.now() - this._start_tm) / this.duration;
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17 if(percent >= 1) {
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18 percent = 1;
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19 if (this.obj.timer) {
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20 this.obj.timer.stop();
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21 delete this.obj.timer;
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22 }
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23 }
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24 x = (this.targetx-this.startposx)*percent+this.startposx;
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25 y = (this.targety-this.startposy)*percent+this.startposy;
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26 this.obj.center.move(x, y);
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27 this.app.refresh();
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28 }
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29
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30 function linear_draw_start() {
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31 var obj = this.obj;
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32 var self = this;
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33
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34 if(obj.timer)
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35 obj.timer.stop();
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36
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37 this._start_tm = Date.now();
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38 obj.timer = setInterval(function() { self.draw(); }, frame_interval);
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39 }
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40
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41 function linear(app,obj,shiftx,shifty,duration) {
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42 obj.animated_linear = this;
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43 this.app = app;
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44 this.obj = obj;
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45 this.end = 0;
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46 this.targetx = shiftx + obj.center.x;
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47 this.targety = shifty + obj.center.y;
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48 this.startposx = obj.center.x;
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49 this.startposy = obj.center.y;
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50 this.duration = duration*1000;
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51 }
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52
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53 exports.linear = linear;
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54 linear.prototype.start = linear_draw_start;
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55 linear.prototype.draw = linear_draw;
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56
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57 /* ------------------------------------------------------------ */
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58 function rotate(app, obj, ang, duration) {
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59 this._app = app;
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60 this._obj = obj;
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61 this._ang = ang;
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62 this._duration = duration * 1000;
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63 }
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64
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65 function rotate_start() {
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66 var obj = this._obj;
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67 var self = this;
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68
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69 this._start_mtx = [obj[0], obj[1], obj[2], obj[3], obj[4], obj[5]];
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70 this._start_tm = Date.now();
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71 obj.timer = setInterval(function() { self.draw(); }, frame_interval);
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72 }
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73
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74 function rotate_draw() {
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75 var percent;
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76 var ang;
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77 var sv, cv;
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78 var obj = this._obj;
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79 var mtx, shift;
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80
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81 percent = (Date.now() - this._start_tm) / this._duration;
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82 if(percent >= 1) {
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83 percent = 1;
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84 obj.timer.stop();
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85 }
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86
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87 ang = percent * this._ang;
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88 sv = Math.sin(ang);
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89 cv = Math.cos(ang);
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90 mtx = [cv, -sv, 0, sv, cv, 0];
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91
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92 shift = [1, 0, -obj.center.x, 0, 1, -obj.center.y];
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93 mtx = multiply(mtx, shift);
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94 shift = [1, 0, obj.center.x, 0, 1, obj.center.y];
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95 mtx = multiply(shift, mtx);
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96 mtx = multiply(mtx, this._start_mtx);
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97
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98 obj[0] = mtx[0];
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99 obj[1] = mtx[1];
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100 obj[2] = mtx[2];
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101 obj[3] = mtx[3];
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102 obj[4] = mtx[4];
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103 obj[5] = mtx[5];
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104
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105 this._app.refresh();
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106 }
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107
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108 rotate.prototype.start = rotate_start;
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109 rotate.prototype.draw = rotate_draw;
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110 exports.rotate = rotate;
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111
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112 function multiply(s,d) {
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113 var m=[];
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114 m[0] = s[0]*d[0]+s[1]*d[3];
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115 m[1] = s[0]*d[1]+s[1]*d[4];
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116 m[2] = s[0]*d[2]+s[1]*d[5]+s[2];
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117 m[3] = s[3]*d[0]+s[4]*d[3];
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118 m[4] = s[3]*d[1]+s[4]*d[4];
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119 m[5] = s[3]*d[2]+s[4]*d[5]+s[5];
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120 return m;
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121 }
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122
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123
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124 function scale_draw() {
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125 if (this.end == 1) return;
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126 var percent = (Date.now() - this.starttime)/this.duration;
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127 if (percent > 1) percent = 1;
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128 var sx = (this.targetx-this.startsx)*percent+this.startsx;
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129 var sy = (this.targety-this.startsy)*percent+this.startsy;
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130 var t=[sx,0,0,0,sy,0];
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131 this.obj[0] = sx;
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132 this.obj[4] = sy;
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133 this.obj[2] = this.origin_offset_x - (sx-this.startsx)*this.obj.center.x;
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134 this.obj[5] = this.origin_offset_y - (sy-this.startsy)*this.obj.center.y;
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135
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136 this.app.refresh();
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137 var self = this;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
138 if (percent < 1) {
844
3c48a77b75d3 USe obj.x and obj.y to implement the linear animation
wycc
parents: 831
diff changeset
139 this.obj.timer=setTimeout(function() { self.draw();}, frame_interval);
794
a27606be2cab Change modeline
Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
140 return;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
141 }
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
142 this.app.refresh();
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
143 this.obj.animated_scale = null;
758
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
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144 }
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
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diff changeset
145
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
146 function scale(app,obj,targetx,targety, duration) {
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
147 try {
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
148 if (obj.animated_scale) {
794
a27606be2cab Change modeline
Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
149 //obj[0] = obj.animated_scale.targetx;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
150 //obj[4] = obj.animated_scale.targety;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
151 //obj[2] = obj.animated_scale.final_offset_x;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
152 //obj[5] = obj.aninated_scale.final_offset_y;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
153 obj.animated_scale.end = 1;
758
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
154 }
794
a27606be2cab Change modeline
Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
155 } catch(e) {
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
156
a27606be2cab Change modeline
Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
157 }
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
158 obj.animated_scale = this;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
159 this.app = app;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
160 this.obj = obj;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
161 this.end = 0;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
162 this.starttime = Date.now();
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
163 this.startsx = obj[0];
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
164 this.startsy = obj[4];
758
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
165 this.targetx = targetx;
794
a27606be2cab Change modeline
Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
166 this.targety = targety;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
167 this.duration = duration*1000;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
168 this.origin_offset_x = obj[2];
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
169 this.origin_offset_y = obj[5];
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
170 this.final_offset_x = this.origin_offset_x-(targetx-this.startsx)*obj.center.x;
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Thinker K.F. Li <thinker@codemud.net>
parents: 788
diff changeset
171 this.final_offset_y = this.origin_offset_y-(targety-this.startsy)*obj.center.y;
758
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
172 }
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
173
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
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diff changeset
174
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
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diff changeset
175 exports.scale = scale;
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
176 scale.prototype.start = scale_draw;
d11b0900f03c Check in the dynamic menu example. Currently, it illustarte a bug in the renderer.
wycc
parents: 728
diff changeset
177 scale.prototype.draw = scale_draw;
788
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
178
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
179 function holder(app, coord) {
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Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
180 var mtx = [coord[0], coord[1], coord[2], coord[3], coord[4], coord[5]];
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Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
181
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
182 this._mtx = mtx;
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Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
183 this._coord = coord;
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Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
184 this._app = app;
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Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
185 }
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
186
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
187 holder.prototype = {
808
9b6c26cf9102 Move bounding box and center back to an object
Thinker K.F. Li <thinker@codemud.net>
parents: 806
diff changeset
188 go: function(pos) {
788
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
189 var sx, sy;
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
190
808
9b6c26cf9102 Move bounding box and center back to an object
Thinker K.F. Li <thinker@codemud.net>
parents: 806
diff changeset
191 sx = pos.x - this._coord.center.x;
9b6c26cf9102 Move bounding box and center back to an object
Thinker K.F. Li <thinker@codemud.net>
parents: 806
diff changeset
192 sy = pos.y - this._coord.center.y;
788
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
193 this.shift(sx, sy);
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
194 },
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
195
808
9b6c26cf9102 Move bounding box and center back to an object
Thinker K.F. Li <thinker@codemud.net>
parents: 806
diff changeset
196 go_center: function(o) {
9b6c26cf9102 Move bounding box and center back to an object
Thinker K.F. Li <thinker@codemud.net>
parents: 806
diff changeset
197 this.go(o.center);
9b6c26cf9102 Move bounding box and center back to an object
Thinker K.F. Li <thinker@codemud.net>
parents: 806
diff changeset
198 },
9b6c26cf9102 Move bounding box and center back to an object
Thinker K.F. Li <thinker@codemud.net>
parents: 806
diff changeset
199
788
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
200 home: function() {
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
201 this._coord[2] = this._mtx[2];
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
202 this._coord[5] = this._mtx[5];
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
203 this._app.refresh();
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
204 },
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
205
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
206 shift: function(sx, sy) {
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
207 this._coord[2] = this._mtx[2] + sx;
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
208 this._coord[5] = this._mtx[5] + sy;
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
209 this._app.refresh();
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
210 }
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
211 };
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
212
7ec13634c97d Add holder for animate
Thinker K.F. Li <thinker@codemud.net>
parents: 776
diff changeset
213 exports.holder = holder;
831
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
214
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
215
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
216
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
217 function alpha_draw() {
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
218
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
219 if (this.end == 1) return;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
220 var percent = (Date.now() - this.starttime)/this.duration;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
221 if (percent > 1) percent = 1;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
222 var sx = (this.targetalpha-this.startalpha)*percent+this.startalpha;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
223 this.obj.opacity=sx;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
224
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
225 this.app.refresh();
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
226 var self = this;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
227 if (percent < 1) {
844
3c48a77b75d3 USe obj.x and obj.y to implement the linear animation
wycc
parents: 831
diff changeset
228 this.obj.timer=setTimeout(function() { self.draw();}, frame_interval);
831
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
229 return;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
230 }
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
231 this.app.refresh();
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
232 this.obj.animated_alpha = null;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
233 }
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
234
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
235 function alpha(app,obj,alpha, duration) {
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
236 try {
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
237 if (obj.animated_alpha) {
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
238 obj.animated_alpha.end = 1;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
239 }
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
240 } catch(e) {
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
241
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
242 }
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
243 obj.animated_alpha = this;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
244 this.app = app;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
245 this.obj = obj;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
246 this.end = 0;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
247 this.starttime = Date.now();
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
248 this.startalpha = obj.opacity;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
249 this.targetalpha = alpha;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
250 this.duration = duration*1000;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
251 }
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
252
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
253 alpha.prototype.start = alpha_draw;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
254 alpha.prototype.draw = alpha_draw;
904b6928f727 Add animation.alpha
wycc
parents: 822
diff changeset
255 exports.alpha = alpha;