Tutorial 04 - Start Moving

重點API：
sandy.core.scenegraph.TransformGroup
sandy.primitive.Cone
sandy.primitive.Hedra

1. package
2. {
3. import flash.display.Sprite;
4. import flash.events.*;
5. import flash.ui.*;
6. import sandy.core.Scene3D;
7. import sandy.core.data.*;
8. import sandy.core.scenegraph.*;
9. import sandy.materials.*;
10. import sandy.materials.attributes.*;
11. import sandy.primitive.*;
13. public class Example004 extends Sprite
14. {
15. private var scene:Scene3D;
16. private var camera:Camera3D;
17. private var tg:TransformGroup;
18. private var myCone:Cone;
19. private var myHeadra:Hedra;
21. public function Example004()
22. {
23. // 產生 camera 物件
24. camera = new Camera3D(300, 300);
25. camera.x = 100;
26. camera.y = 100;
27. camera.z = -400;
28. camera.lookAt(0, 0, 0);
30. // 產生顯示物件群組
31. var root:Group = createScene();
33. // 產生場景物件，並將 camera 物件及顯示
34. // 物件群組加到場景中
35. scene = new Scene3D("scene", this, camera, root);
37. addEventListener(Event.ENTER_FRAME, enterFrameHandler);
38. stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
39. }
41. private function createScene():Group
42. {
43. var g:Group = new Group();
45. // 在每個座標軸，產生一線性物件
46. var myXLine:Line3D = new Line3D("x-coord", new Point3D(-50, 0, 0),
47. new Point3D(50, 0, 0));
48. var myYLine:Line3D = new Line3D("y-coord", new Point3D(0, -50, 0),
49. new Point3D(0, 50, 0));
50. var myZLine:Line3D = new Line3D("z-coord", new Point3D(0, 0, -50),
51. new Point3D(0, 0, 50));
53. // 產生一移動群組物件, 並為其命名
54. tg = new TransformGroup("myGroup");
56. // 產生Cone object, 並設定其參數，分別為：
57. // 識別名稱, 半徑及高
58. myCone = new Cone("theObj1", 50, 100);
60. // 產生 Hedra objecct，並設定其參數，分別為：
61. // 識別名稱、高、寬及深度
62. myHeadra = new Hedra("theObj2", 80, 60, 60);
64. // 分別將 Cone 物件移到左邊， Hedra 物件移到右邊
65. myCone.x = -160;
66. myCone.z = 150;
67. myHeadra.x = 90;
69. // 產生 materialAttributes物件
70. var materialAttr:MaterialAttributes = new MaterialAttributes(
71. new LineAttributes(0.5, 0x2111BB, 0.4),
72. new LightAttributes(true, 0.1)
73. );
74. var material:Material = new ColorMaterial(0xFFCC33, 1, materialAttr);
75. material.lightingEnable = true;
77. var app:Appearance = new Appearance(material);
79. myCone.appearance = app;
80. myHeadra.appearance = app;
82. // 將兩個 objects 加入移動群組物件中
83. tg.addChild(myCone);
84. tg.addChild(myHeadra);
86. // 將所有的物件加入 Group 物件中
87. g.addChild(tg);
88. g.addChild(myXLine);
89. g.addChild(myYLine);
90. g.addChild(myZLine);
92. return g;
93. }
95. private function enterFrameHandler(evt:Event):void
96. {
97. // 調整 Headra 與 Cone 沿Y軸轉向的幅度
98. myHeadra.pan += 4;
99. myCone.pan += 4;
101. scene.render();
102. }
104. private function keyPressed(evt:KeyboardEvent):void
105. {
106. switch(evt.keyCode)
107. {
108. case Keyboard.UP:
109. tg.y += 2;
110. break;
111. case Keyboard.DOWN:
112. tg.y -= 2;
113. break;
114. case Keyboard.RIGHT:
115. tg.roll += 2;
116. break;
117. case Keyboard.LEFT:
118. tg.roll -= 2;
119. break;
120. }
121. }
122. }
123. }

產出：



程式碼出處：http://www.flashsandy.org/tutorials/3.0/sandy_cs3_tut04