(转)Unity3D 游戏引擎之FBX模型的载入与人物行走动画的播放

原文地址:http://blog.csdn.net/xys289187120/article/details/6961080

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?? ? ? 3D 世界中自定义模型的使用恐怕是重中之重，因为系统自身提供的模型肯定是无法满足GD对游戏的策划，所以为了让游戏更加绚丽，我们须要调用美术制作的精品模型与动画，本章MOMO将带领盆友们学习Unity3D中模型的载入与动画的播放，哇咔咔～～

?? ? ? 由于MOMO手头上没有现成的模型，所以我将在Unity3D 官网中下载官方提供的游戏DEMO 中的模型来使用。另外官方提供了很多Unity3D 游戏DEMO,与详细的文档。可以帮助我们学习Unity.有兴趣的盆友可以去看看哈。

下载页面：http://unity3d.com/support/resources/??

本章博文的目的是利用上一章介绍的游戏摇杆来控制人物模型的移动，与行走动画的播放。

如上图所示Create中的文件夹male中存放着模型动画与贴图等，这个应该是美术提供给我们的。然后将整个male用鼠标拖动到左侧3D世界中，通过移动，旋转，缩放将人物模型放置在一个理想的位置。右侧红框内设置模型动画的属性。

Animation ?

? ? ? ? idle1? 该模型默认动画名称为idle1

Animations?

? ? ? ? size ? 该模型动画的数量

? ? ? ? Element 该模型的动画名称

Play Automatically 是否自动播放

Animation Physics 是否设置该模型物理碰撞

Animation Only if Visable 是否设置该模型仅自己显示

给该模型绑定一个脚本Controller.cs 用来接收摇杆返回的信息更新模型动画。

Controller.cs

1. using?UnityEngine;??
2. using?System.Collections;??
3. ??
4. ??
5. ??
6. public?class?Controller?:?MonoBehaviour?{??
7. ??????
8. ????//人物的行走方向状态??
9. ????public?const?int?HERO_UP=?0;??
10. ????public?const?int?HERO_RIGHT=?1;??
11. ????public?const?int?HERO_DOWN=?2;??
12. ????public?const?int?HERO_LEFT=?3;??
13. ??????
14. ????//人物当前行走方向状态??
15. ????public?int?state?=?0;??
16. ??????
17. ????//备份上一次人物当前行走方向状态??
18. ????//这里暂时没有用到??
19. ????public?int?backState?=?0;??
20. ??????
21. ????//游戏摇杆对象??
22. ????public?MPJoystick?moveJoystick;????
23. ??????
24. ????//这个方法只调用一次，在Start方法之前调用??
25. ????public?void?Awake()?{??
26. ??????????
27. ????}??
28. ??????
29. ????//这个方法只调用一次，在Awake方法之后调用??
30. ????void?Start?()?{??
31. ????????state?=?HERO_DOWN;??
32. ????}??
33. ??????
34. ??????
35. ????void?Update?()?{??
36. ??????
37. ????//获取摇杆控制的方向数据?上一章有详细介绍????
38. ????float?touchKey_x?=??moveJoystick.position.x;????
39. ????float?touchKey_y?=??moveJoystick.position.y;????
40. ??????????
41. ????????
42. ???????
43. ????if(touchKey_x?==?-1){????
44. ???????setHeroState(HERO_LEFT);??
45. ????????????
46. ????}else?if(touchKey_x?==?1){????
47. ???????setHeroState(HERO_RIGHT);??
48. ????????????
49. ????}????
50. ???????
51. ????if(touchKey_y?==?-1){????
52. ????????setHeroState(HERO_DOWN);??
53. ???
54. ????}else?if(touchKey_y?==?1){????
55. ????????setHeroState(HERO_UP);???????????
56. ????}????
57. ??????
58. ????if(touchKey_x?==?0?&&?touchKey_y?==0){??
59. ????????//松开摇杆后播放默认动画，??
60. ????????//不穿参数为播放默认动画。??
61. ????????animation.Play();??
62. ????}??
63. ??????
64. ??????????
65. ????}??
66. ??????
67. ????public?void?setHeroState(int?newState)??
68. ????{??
69. ??????????
70. ????????//根据当前人物方向?与上一次备份方向计算出模型旋转的角度??
71. ????????int?rotateValue?=?(newState?-?state)?*?90;??
72. ????????Vector3?transformValue?=?new?Vector3();??
73. ??????????
74. ????????//播放行走动画??
75. ????????animation.Play("walk");??
76. ??????????
77. ????????//模型移动的位移的数值??
78. ????????switch(newState){??
79. ????????????case?HERO_UP:??
80. ????????????????transformValue?=?Vector3.forward?*?Time.deltaTime;??
81. ????????????break;????
82. ????????????case?HERO_DOWN:??
83. ????????????????transformValue?=?-Vector3.forward?*?Time.deltaTime;??
84. ????????????break;????
85. ????????????case?HERO_LEFT:??
86. ??????????
87. ??????????
88. ????????//模型旋转??
89. ????????transform.Rotate(Vector3.up,?rotateValue);??
90. ??????????
91. ????????????break;????????????????
92. ????????}??
93. ??????????
94. ??????????
95. ????????//模型旋转??
96. ????????transform.Rotate(Vector3.up,?rotateValue);??
97. ??????????
98. ????????//模型移动??
99. ????????transform.Translate(transformValue,?Space.World);??
100. ??????????
101. ????????backState?=?state;??
102. ????????state?=?newState;??
103. ??????????
104. ????}??
105. ??????
106. }??

上一章介绍了javaScript脚本使用游戏摇杆的方法，本章MOMO告诉大家使用C＃脚本来使用游戏摇杆，上面我用 Controller.cs? C＃脚本来接收系统提供的Joystick.js是肯定无法使用的，须要修改成.cs文件，我在国外的一个网站上看到了一个老外帮我们已经修改了，那么我将他修改后的代码贴出来方便大家学习，有兴趣的朋友可以研究研究。哇咔咔～

MPJoystick.cs

1. using?UnityEngine;???
2. ??
3. /**?
4. ?
5. ?*?File:?MPJoystick.cs?
6. ?
7. ?*?Author:?Chris?Danielson?of?(monkeyprism.com)?
8. ?
9. ?*??
10. ?
11. //?USED?TO?BE:?Joystick.js?taken?from?Penelope?iPhone?Tutorial?
12. ?
13. //?
14. ?
15. //?Joystick?creates?a?movable?joystick?(via?GUITexture)?that??
16. ?
17. //?handles?touch?input,?taps,?and?phases.?Dead?zones?can?control?
18. ?
19. //?where?the?joystick?input?gets?picked?up?and?can?be?normalized.?
20. ?
21. //?
22. ?
23. //?Optionally,?you?can?enable?the?touchPad?property?from?the?editor?
24. ?
25. //?to?treat?this?Joystick?as?a?TouchPad.?A?TouchPad?allows?the?finger?
26. ?
27. //?to?touch?down?at?any?point?and?it?tracks?the?movement?relatively??
28. ?
29. //?without?moving?the?graphic?
30. ?
31. */??
32. [RequireComponent(typeof(GUITexture))]??
33. ??
34. public?class?MPJoystick?:?MonoBehaviour??
35. ??
36. {??
37. ??
38. class?Boundary?{??
39. ??
40. public?Vector2?min?=?Vector2.zero;??
41. ??
42. public?Vector2?max?=?Vector2.zero;??
43. ??
44. }??
45. private?static?MPJoystick[]?joysticks;???//?A?static?collection?of?all?joysticks??
46. ??
47. private?static?bool?enumeratedJoysticks?=?false;??
48. ??
49. private?static?float?tapTimeDelta?=?0.3f;????//?Time?allowed?between?taps??
50. public?bool?touchPad;??
51. ??
52. public?Vector2?position?=?Vector2.zero;??
53. ??
54. public?Rect?touchZone;??
55. ??
56. public?Vector2?deadZone?=?Vector2.zero;??//?Control?when?position?is?output??
57. ??
58. public?bool?normalize?=?false;?//?Normalize?output?after?the?dead-zone???
59. ??
60. public?int?tapCount;???????
61. ??
62. private?int?lastFingerId?=?-1;???//?Finger?last?used?for?this?joystick??
63. ??
64. private?float?tapTimeWindow;?????//?How?much?time?there?is?left?for?a?tap?to?occur??
65. ??
66. private?Vector2?fingerDownPos;??
67. ??
68. //private?float?fingerDownTime;??
69. ??
70. //private?float?firstDeltaTime?=?0.5f;??
71. private?GUITexture?gui;??
72. ??
73. private?Rect?defaultRect;????//?Default?position?/?extents?of?the?joystick?graphic??
74. ??
75. private?Boundary?guiBoundary?=?new?Boundary();???//?Boundary?for?joystick?graphic??
76. ??
77. private?Vector2?guiTouchOffset;??//?Offset?to?apply?to?touch?input??
78. ??
79. private?Vector2?guiCenter;???//?Center?of?joystick??
80. void?Start()?{??
81. ??
82. gui?=?(GUITexture)GetComponent(typeof(GUITexture));??
83. defaultRect?=?gui.pixelInset;??
84. ??
85. defaultRect.x?+=?transform.position.x?*?Screen.width;//?+?gui.pixelInset.x;?//?-??Screen.width?*?0.5;??
86. ??
87. ????????defaultRect.y?+=?transform.position.y?*?Screen.height;//?-?Screen.height?*?0.5;??
88. transform.position?=?Vector3.zero;??
89. if?(touchPad)?{??
90. ??
91. //?If?a?texture?has?been?assigned,?then?use?the?rect?ferom?the?gui?as?our?touchZone??
92. ??
93. if?(?gui.texture?)??
94. ??
95. touchZone?=?defaultRect;??
96. ??
97. }?else?{??
98. ??
99. guiTouchOffset.x?=?defaultRect.width?*?0.5f;??
100. ??
101. guiTouchOffset.y?=?defaultRect.height?*?0.5f;??
102. //?Cache?the?center?of?the?GUI,?since?it?doesn't?change??
103. ??
104. guiCenter.x?=?defaultRect.x?+?guiTouchOffset.x;??
105. ??
106. guiCenter.y?=?defaultRect.y?+?guiTouchOffset.y;??
107. //?Let's?build?the?GUI?boundary,?so?we?can?clamp?joystick?movement??
108. ??
109. guiBoundary.min.x?=?defaultRect.x?-?guiTouchOffset.x;??
110. ??
111. guiBoundary.max.x?=?defaultRect.x?+?guiTouchOffset.x;??
112. ??
113. guiBoundary.min.y?=?defaultRect.y?-?guiTouchOffset.y;??
114. ??
115. guiBoundary.max.y?=?defaultRect.y?+?guiTouchOffset.y;??
116. ??
117. }??
118. ??
119. }??
120. public?Vector2?getGUICenter()?{??
121. ??
122. return?guiCenter;??
123. ??
124. }??
125. void?Disable()?{??
126. ??
127. gameObject.active?=?false;??
128. ??
129. //enumeratedJoysticks?=?false;??
130. ??
131. }??
132. private?void?ResetJoystick()?{??
133. ??
134. gui.pixelInset?=?defaultRect;??
135. ??
136. lastFingerId?=?-1;??
137. ??
138. position?=?Vector2.zero;??
139. ??
140. fingerDownPos?=?Vector2.zero;??
141. ??
142. }??
143. private?bool?IsFingerDown()?{??
144. ??
145. return?(lastFingerId?!=?-1);??
146. ??
147. }??
148. public?void?LatchedFinger(int?fingerId)?{??
149. ??
150. //?If?another?joystick?has?latched?this?finger,?then?we?must?release?it??
151. ??
152. if?(?lastFingerId?==?fingerId?)??
153. ??
154. ResetJoystick();??
155. ??
156. }??
157. void?Update()?{??
158. ??
159. if?(!enumeratedJoysticks)?{??
160. ??
161. //?Collect?all?joysticks?in?the?game,?so?we?can?relay?finger?latching?messages??
162. ??
163. joysticks?=?(MPJoystick[])FindObjectsOfType(typeof(MPJoystick));??
164. ??
165. enumeratedJoysticks?=?true;??
166. ??
167. }??
168. int?count?=?Input.touchCount;??
169. if?(?tapTimeWindow?>?0?)??
170. ??
171. tapTimeWindow?-=?Time.deltaTime;??
172. ??
173. else??
174. ??
175. tapCount?=?0;??
176. if?(?count?==?0?)??
177. ??
178. ResetJoystick();??
179. ??
180. else??
181. ??
182. {??
183. ??
184. for(int?i?=?0;?i?<?count;?i++)?{??
185. ??
186. Touch?touch?=?Input.GetTouch(i);??
187. ??
188. Vector2?guiTouchPos?=?touch.position?-?guiTouchOffset;??
189. bool?shouldLatchFinger?=?false;??
190. ??
191. if?(touchPad)?{??
192. ??
193. if?(touchZone.Contains(touch.position))??
194. ??
195. shouldLatchFinger?=?true;??
196. ??
197. }??
198. ??
199. else?if?(gui.HitTest(touch.position))?{??
200. ??
201. shouldLatchFinger?=?true;??
202. ??
203. }??
204. //?Latch?the?finger?if?this?is?a?new?touch??
205. ??
206. if?(shouldLatchFinger?&&?(lastFingerId?==?-1?||?lastFingerId?!=?touch.fingerId?))?{??
207. if?(touchPad)?{??
208. ??
209. //gui.color.a?=?0.15;??
210. ??
211. lastFingerId?=?touch.fingerId;??
212. ??
213. //fingerDownPos?=?touch.position;??
214. ??
215. //fingerDownTime?=?Time.time;??
216. ??
217. }??
218. lastFingerId?=?touch.fingerId;??
219. ??
220. ???
221. ??
222. //?Accumulate?taps?if?it?is?within?the?time?window??
223. ??
224. if?(?tapTimeWindow?>?0?)??
225. ??
226. tapCount++;??
227. ??
228. else?{??
229. ??
230. tapCount?=?1;??
231. ??
232. tapTimeWindow?=?tapTimeDelta;??
233. ??
234. }??
235. //?Tell?other?joysticks?we've?latched?this?finger??
236. ??
237. //for?(??j?:?Joystick?in?joysticks?)??
238. ??
239. foreach?(MPJoystick?j?in?joysticks)?{??
240. ??
241. if?(j?!=?this)???
242. ??
243. j.LatchedFinger(?touch.fingerId?);??
244. ??
245. }??
246. ??
247. }?????
248. if?(?lastFingerId?==?touch.fingerId?)?{??
249. ??
250. //?Override?the?tap?count?with?what?the?iPhone?SDK?reports?if?it?is?greater??
251. ??
252. //?This?is?a?workaround,?since?the?iPhone?SDK?does?not?currently?track?taps??
253. ??
254. //?for?multiple?touches??
255. ??
256. if?(?touch.tapCount?>?tapCount?)??
257. ??
258. tapCount?=?touch.tapCount;??
259. if?(?touchPad?)?{??
260. ??
261. //?For?a?touchpad,?let's?just?set?the?position?directly?based?on?distance?from?initial?touchdown??
262. ??
263. position.x?=?Mathf.Clamp(?(?touch.position.x?-?fingerDownPos.x?)?/?(?touchZone.width?/?2?),?-1,?1?);??
264. ??
265. position.y?=?Mathf.Clamp(?(?touch.position.y?-?fingerDownPos.y?)?/?(?touchZone.height?/?2?),?-1,?1?);??
266. ??
267. }?else?{??
268. ??
269. //?Change?the?location?of?the?joystick?graphic?to?match?where?the?touch?is??
270. ??
271. Rect?r?=?gui.pixelInset;??
272. ??
273. r.x?=??Mathf.Clamp(?guiTouchPos.x,?guiBoundary.min.x,?guiBoundary.max.x?);??
274. ??
275. r.y?=??Mathf.Clamp(?guiTouchPos.y,?guiBoundary.min.y,?guiBoundary.max.y?);??
276. ??
277. gui.pixelInset?=?r;??
278. ??
279. }??
280. if?(touch.phase?==?TouchPhase.Ended?||?touch.phase?==?TouchPhase.Canceled)??
281. ??
282. ResetJoystick();??
283. ??
284. }??
285. ??
286. }??
287. ??
288. }??
289. if?(!touchPad)?{??
290. ??
291. //?Get?a?value?between?-1?and?1?based?on?the?joystick?graphic?location??
292. ??
293. position.x?=?(?gui.pixelInset.x?+?guiTouchOffset.x?-?guiCenter.x?)?/?guiTouchOffset.x;??
294. ??
295. position.y?=?(?gui.pixelInset.y?+?guiTouchOffset.y?-?guiCenter.y?)?/?guiTouchOffset.y;??
296. ??
297. }??
298. //?Adjust?for?dead?zone??
299. ??
300. var?absoluteX?=?Mathf.Abs(?position.x?);??
301. ??
302. var?absoluteY?=?Mathf.Abs(?position.y?);??
303. ??
304. ???
305. ??
306. if?(absoluteX?<?deadZone.x)?{??
307. ??
308. //?Report?the?joystick?as?being?at?the?center?if?it?is?within?the?dead?zone??
309. ??
310. position.x?=?0;??
311. ??
312. }??
313. ??
314. else?if?(normalize)?{??
315. ??
316. //?Rescale?the?output?after?taking?the?dead?zone?into?account??
317. ??
318. position.x?=?Mathf.Sign(?position.x?)?*?(?absoluteX?-?deadZone.x?)?/?(?1?-?deadZone.x?);??
319. ??
320. }??
321. if?(absoluteY?<?deadZone.y)?{??
322. ??
323. //?Report?the?joystick?as?being?at?the?center?if?it?is?within?the?dead?zone??
324. ??
325. position.y?=?0;??
326. ??
327. }??
328. ??
329. else?if?(normalize)?{??
330. ??
331. //?Rescale?the?output?after?taking?the?dead?zone?into?account??
332. ??
333. position.y?=?Mathf.Sign(?position.y?)?*?(?absoluteY?-?deadZone.y?)?/?(?1?-?deadZone.y?);??
334. ??
335. }??
336. }??
337. }??

导出 build and run? 看看在iPhone 上的效果，通过触摸游戏摇杆可以控制人物的上，下，左，右 ，左上，右上，左下，右下 8个方向的移动啦，不错吧，哇咔咔～～