/*     */ package NET.worlds.scape;
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/*     */ import java.io.IOException;
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/*     */ public class TrajectoryBehavior
/*     */   extends SwitchableBehavior
/*     */   implements FrameHandler, BumpHandler
/*     */ {
/*     */   protected Point3 dir;
/*     */   public float linearVel;
/*     */   public Point3 axis;
/*     */   public float angularVel;
/*     */   private RollingAttribute attr;
/*     */   public float linearDamp;
/*     */   public float bounceDamp;
/*     */   public float angularDamp;
/*     */   public float gravity;
/*     */   private long lastTime;
/*  47 */   private boolean bumplock = false;
/*     */   
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/*     */ 
/*     */   public TrajectoryBehavior(Point3Temp linearVelocity, float linearDamping, Point3Temp angularAxis, float angularVelocity, float angularDamping)
/*     */   {
/*  64 */     this.dir = new Point3();
/*  65 */     this.linearVel = 0.0F;
/*  66 */     this.linearDamp = linearDamping;
/*  67 */     addVelocity(linearVelocity);
/*     */     
/*  69 */     this.axis = new Point3(angularAxis);
/*  70 */     this.axis.normalize();
/*  71 */     this.angularVel = angularVelocity;
/*  72 */     this.angularDamp = angularDamping;
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public TrajectoryBehavior()
/*     */   {
/*  82 */     this(Point3Temp.make(0.0F, 0.0F, 0.0F));
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
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/*     */   public TrajectoryBehavior(Point3Temp vel)
/*     */   {
/*  92 */     this(vel, 0.0F, Point3Temp.make(0.0F, 0.0F, 1.0F), 0.0F, 0.0F);
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */   public void setDir(Point3Temp d)
/*     */   {
/* 100 */     double len = Math.sqrt(d.x * d.x + d.y * d.y + d.z * d.z);
/*     */     
/* 102 */     if (len == 0.0D)
/*     */     {
/* 104 */       this.dir.x = 0.0F;
/* 105 */       this.dir.y = 0.0F;
/* 106 */       this.dir.z = 0.0F;
/* 107 */       return;
/*     */     }
/*     */     
/*     */ 
/* 111 */     this.dir.x = ((float)(d.x / len));
/* 112 */     this.dir.y = ((float)(d.y / len));
/* 113 */     this.dir.z = ((float)(d.z / len));
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public TrajectoryBehavior addVelocity(Point3Temp vector)
/*     */   {
/* 122 */     this.dir.times(this.linearVel).plus(vector);
/* 123 */     float len = this.dir.length();
/* 124 */     if (len > 0.0F)
/* 125 */       this.dir.dividedBy(len);
/* 126 */     this.linearVel = len;
/*     */     
/* 128 */     return this;
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public void setNotifyAttribute(RollingAttribute attr)
/*     */   {
/* 137 */     this.attr = attr;
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public boolean handle(FrameEvent e)
/*     */   {
/* 146 */     this.bumplock = false;
/* 147 */     WObject o = e.receiver;
/* 148 */     float dT = (float)(e.time - this.lastTime) / 1000.0F;
/*     */     
/*     */ 
/*     */ 
/* 152 */     if (this.lastTime == 0L) {
/* 153 */       this.lastTime = e.time;
/* 154 */       return true;
/*     */     }
/* 156 */     this.lastTime = e.time;
/*     */     
/*     */ 
/*     */ 
/*     */ 
/* 161 */     Room room = o.getRoom();
/* 162 */     if (o.getZ() > room.floorHeight(o.getX(), o.getY(), o.getZ())) {
/* 163 */       addVelocity(Point3Temp.make(0.0F, 0.0F, -this.gravity * dT));
/* 164 */     } else if (this.dir.z < 0.0F) {
/* 165 */       this.dir.z = (-this.dir.z);
/* 166 */       if (this.bounceDamp < 1.0D) {
/* 167 */         this.linearVel *= this.bounceDamp;
/* 168 */         if ((this.linearVel < 0.2D) && (this.linearVel > -0.2D)) {
/* 169 */           this.linearVel = 0.0F;
/*     */         }
/*     */       }
/*     */     }
/*     */     
/* 174 */     if (this.linearVel != 0.0F) {
/* 175 */       Point3Temp dist = Point3Temp.make(this.dir).times(dT * this.linearVel);
/* 176 */       o.moveThrough(dist);
/*     */       
/* 178 */       if (this.linearDamp != 0.0F) {
/* 179 */         this.linearVel = ((float)(this.linearVel * Math.exp(-this.linearDamp * dT)));
/* 180 */         if (Math.abs(this.linearVel) < this.linearDamp * 16.0F) {
/* 181 */           this.linearVel = 0.0F;
/* 182 */           if (this.attr != null) {
/* 183 */             this.attr.notifyStopped();
/*     */           }
/*     */         }
/*     */       }
/*     */     }
/*     */     
/* 189 */     if (this.angularVel != 0.0F) {
/* 190 */       o.spin(this.axis.x, this.axis.y, this.axis.z, this.angularVel * dT);
/* 191 */       if (this.angularDamp != 0.0F) {
/* 192 */         this.angularVel = ((float)(this.angularVel * Math.exp(-this.angularDamp * dT)));
/* 193 */         if (Math.abs(this.angularVel) < this.angularDamp * 0.6F)
/* 194 */           this.angularVel = 0.0F;
/*     */       }
/*     */     }
/* 197 */     return true;
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public boolean handle(BumpEventTemp b)
/*     */   {
/* 209 */     if (this.bumplock) {
/* 210 */       return true;
/*     */     }
/* 212 */     if (this.attr != null) {
/* 213 */       this.attr.handle(b);
/*     */     } else
/* 215 */       processBumpEvent(b);
/* 216 */     this.bumplock = true;
/* 217 */     return true;
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
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/*     */ 
/*     */ 
/*     */ 
/*     */   public void processBumpEvent(BumpEventTemp b)
/*     */   {
/* 229 */     b.postBumpPath.minus(b.postBumpPath);
/*     */     
/*     */ 
/*     */ 
/* 233 */     if ((this.dir.x == 0.0F) && (this.dir.y == 0.0F) && (this.dir.z == 0.0F)) {
/* 234 */       return;
/*     */     }
/*     */     
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/* 241 */     WObject bumper = b.receiver == b.target ? 
/* 242 */       (WObject)b.source : b.target;
/*     */     Point3Temp norm;
/* 244 */     Point3Temp norm; if (((bumper instanceof Camera)) || ((bumper instanceof Hologram)))
/*     */     {
/* 246 */       float orientation = (float)((360.0F - bumper.getYaw() + 90.0F) * 
/* 247 */         3.141592653589793D / 180.0D);
/* 248 */       norm = Point3Temp.make((float)Math.cos(orientation), 
/* 249 */         (float)Math.sin(orientation), 
/* 250 */         0.0F);
/*     */     } else {
/* 252 */       norm = Point3Temp.make(b.bumpNormal);
/*     */     }
/* 254 */     float lb = (float)Math.sqrt(norm.x * norm.x + 
/* 255 */       norm.y * norm.y + norm.z * norm.z);
/* 256 */     norm.x /= lb;
/* 257 */     norm.y /= lb;
/* 258 */     norm.z /= lb;
/*     */     
/*     */ 
/*     */ 
/* 262 */     float projection = Math.abs(this.dir.x * norm.x + 
/* 263 */       this.dir.y * norm.y + 
/* 264 */       this.dir.z * norm.z);
/*     */     
/*     */ 
/* 267 */     this.dir.x += norm.x * 2.0F * projection;
/* 268 */     this.dir.y += norm.y * 2.0F * projection;
/* 269 */     this.dir.z += norm.z * 2.0F * projection;
/*     */     
/*     */ 
/* 272 */     double n = Math.sqrt(this.dir.x * this.dir.x + this.dir.y * this.dir.y + this.dir.z * this.dir.z);
/* 273 */     if (n != 0.0D)
/*     */     {
/* 275 */       Point3 tmp380_377 = this.dir;tmp380_377.x = ((float)(tmp380_377.x / n)); Point3 
/* 276 */         tmp396_393 = this.dir;tmp396_393.y = ((float)(tmp396_393.y / n)); Point3 
/* 277 */         tmp412_409 = this.dir;tmp412_409.z = ((float)(tmp412_409.z / n));
/*     */     }
/*     */     
/*     */ 
/*     */ 
/*     */ 
/* 283 */     if (this.bounceDamp < 1.0D) {
/* 284 */       this.linearVel *= this.bounceDamp;
/* 285 */       if ((this.linearVel < 0.2D) && (this.linearVel > -0.2D)) {
/* 286 */         this.linearVel = 0.0F;
/*     */       }
/*     */     }
/*     */   }
/*     */   
/*     */ 
/*     */ 
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/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public String toString()
/*     */   {
/* 302 */     return 
/*     */     
/*     */ 
/* 305 */       super.toString() + "[" + getName() + ": lin. velocity " + this.linearVel + ", lin. damp " + this.linearDamp + ", direction " + this.dir + ", ang. vel " + this.angularVel + ", ang. damp " + this.angularDamp + ", axis " + this.axis + "]";
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/*     */ 
/*     */   public Object properties(int index, int offset, int mode, Object value)
/*     */     throws NoSuchPropertyException
/*     */   {
/* 315 */     Object ret = null;
/* 316 */     switch (index - offset) {
/*     */     case 0: 
/* 318 */       if (mode == 0) {
/* 319 */         ret = FloatPropertyEditor.make(
/* 320 */           new Property(this, index, "Linear Velocity"));
/* 321 */       } else if (mode == 1) {
/* 322 */         ret = new Float(this.linearVel);
/* 323 */       } else if (mode == 2)
/* 324 */         this.linearVel = ((Float)value).floatValue();
/* 325 */       break;
/*     */     case 1: 
/* 327 */       if (mode == 0) {
/* 328 */         ret = FloatPropertyEditor.make(
/* 329 */           new Property(this, index, "Linear Damping"));
/* 330 */       } else if (mode == 1) {
/* 331 */         ret = new Float(this.linearDamp);
/* 332 */       } else if (mode == 2)
/* 333 */         this.linearDamp = ((Float)value).floatValue();
/* 334 */       break;
/*     */     case 2: 
/* 336 */       if (mode == 0) {
/* 337 */         ret = Point3PropertyEditor.make(
/* 338 */           new Property(this, index, "Direction"));
/* 339 */       } else if (mode == 1) {
/* 340 */         ret = new Point3(this.dir);
/* 341 */       } else if (mode == 2)
/* 342 */         this.dir = ((Point3)value);
/* 343 */       break;
/*     */     case 3: 
/* 345 */       if (mode == 0) {
/* 346 */         ret = FloatPropertyEditor.make(
/* 347 */           new Property(this, index, "Angular Velocity"));
/* 348 */       } else if (mode == 1) {
/* 349 */         ret = new Float(this.angularVel);
/* 350 */       } else if (mode == 2)
/* 351 */         this.angularVel = ((Float)value).floatValue();
/* 352 */       break;
/*     */     case 4: 
/* 354 */       if (mode == 0) {
/* 355 */         ret = FloatPropertyEditor.make(
/* 356 */           new Property(this, index, "Angular Damping"));
/* 357 */       } else if (mode == 1) {
/* 358 */         ret = new Float(this.angularDamp);
/* 359 */       } else if (mode == 2)
/* 360 */         this.angularDamp = ((Float)value).floatValue();
/* 361 */       break;
/*     */     case 5: 
/* 363 */       if (mode == 0) {
/* 364 */         ret = Point3PropertyEditor.make(
/* 365 */           new Property(this, index, "Axis"));
/* 366 */       } else if (mode == 1) {
/* 367 */         ret = new Point3(this.axis);
/* 368 */       } else if (mode == 2)
/* 369 */         this.axis = ((Point3)value);
/* 370 */       break;
/*     */     case 6: 
/* 372 */       if (mode == 0) {
/* 373 */         ret = FloatPropertyEditor.make(
/* 374 */           new Property(this, index, 
/* 375 */           "Gravitational Acceleration"));
/* 376 */       } else if (mode == 1) {
/* 377 */         ret = new Float(this.gravity);
/* 378 */       } else if (mode == 2)
/* 379 */         this.gravity = ((Float)value).floatValue();
/* 380 */       break;
/*     */     case 7: 
/* 382 */       if (mode == 0) {
/* 383 */         ret = FloatPropertyEditor.make(
/* 384 */           new Property(this, index, 
/* 385 */           "Bounce Damping (1 = superball, 0 = beanbag)"));
/* 386 */       } else if (mode == 1) {
/* 387 */         ret = new Float(this.bounceDamp);
/* 388 */       } else if (mode == 2) {
/* 389 */         this.bounceDamp = ((Float)value).floatValue();
/* 390 */         this.bounceDamp = ((float)Math.max(0.0D, Math.min(1.0D, this.bounceDamp)));
/*     */       }
/* 392 */       break;
/*     */     default: 
/* 394 */       ret = super.properties(index, offset + 8, mode, value);
/*     */     }
/* 396 */     return ret;
/*     */   }
/*     */   
/*     */ 
/*     */ 
/*     */ 
/* 402 */   private static Object classCookie = new Object();
/*     */   
/*     */   public void saveState(Saver s)
/*     */     throws IOException
/*     */   {
/* 407 */     s.saveVersion(0, classCookie);
/* 408 */     super.saveState(s);
/*     */     
/* 410 */     s.saveFloat(this.linearVel);
/* 411 */     s.saveFloat(this.linearDamp);
/* 412 */     s.save(this.dir);
/* 413 */     s.saveFloat(this.angularVel);
/* 414 */     s.saveFloat(this.angularDamp);
/* 415 */     s.save(this.axis);
/* 416 */     s.saveFloat(this.gravity);
/* 417 */     s.saveFloat(this.bounceDamp);
/*     */   }
/*     */   
/*     */   public void restoreState(Restorer r)
/*     */     throws IOException, TooNewException
/*     */   {
/* 423 */     switch (r.restoreVersion(classCookie)) {
/*     */     case 0: 
/* 425 */       super.restoreState(r);
/*     */       
/* 427 */       this.linearVel = r.restoreFloat();
/* 428 */       this.linearDamp = r.restoreFloat();
/* 429 */       this.dir = ((Point3)r.restore());
/* 430 */       this.angularVel = r.restoreFloat();
/* 431 */       this.angularDamp = r.restoreFloat();
/* 432 */       this.axis = ((Point3)r.restore());
/* 433 */       this.gravity = r.restoreFloat();
/* 434 */       this.bounceDamp = r.restoreFloat();
/* 435 */       break;
/*     */     default: 
/* 437 */       throw new TooNewException();
/*     */     }
/*     */   }
/*     */ }


/* Location:              C:\Program Files (x86)\Worlds Inc\WorldsPlayer - Win7\lib\worlds.jar!\NET\worlds\scape\TrajectoryBehavior.class
 * Java compiler version: 6 (50.0)
 * JD-Core Version:       0.7.1
 */