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1 /*
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2 * lump.h
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3 * simplespring
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4 *
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5 * Created by Robert Tubb on 01/06/2011.
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6 * Copyright 2011 __MyCompanyName__. All rights reserved.
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7 *
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8 */
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9 #ifndef _LUMPH
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10 #define _LUMPH
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11 #include "2dvector.h"
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12 #include "ofMain.h"
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13 #include "spring.h"
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14
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15
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16 class Spring;
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17 class Lump {
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18 private:
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19 double mass, inverseMass;
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20 bool grabbed, highlighted;
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21 const int maxSprings;
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22
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23 TwoVector velocity;
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24 TwoVector accel;
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25 double friction;
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26
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27 public:
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28 bool constrained;
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29 Spring** attachedSprings; // pointers to all attached springs
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30 int numAttachedSprings;
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31
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32 enum ConstrainMode {NOT_CONSTRAINED,CONSTRAIN_X,CONSTRAIN_Y,CONSTRAIN_XY};
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33 ConstrainMode constrainMode;
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34
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35 bool isInScanPath;
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36
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37 TwoVector position;
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38 TwoVector previousPosition;
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39 double totalForceMag;
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40 double size;
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41 int grabID; // which touch is this lump grabbed by?
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42
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43 Lump(); // default constructor
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44 Lump(double aMass,double aFriction, double positionX, double positionY);
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45 // also which spring is it attached to
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46 ~Lump();
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47
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48 TwoVector applyForce();
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49 void averagingFilter(double amt);
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50 void homingFilter(double amt);
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51 TwoVector averageOfConnected();
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52
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53 TwoVector zeroRefPos;
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54 void draw();
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55
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56 void attachSpring(Spring* aSpring);
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57 void setPosition(double ax, double ay);
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58 void setVelocity(double ax, double ay);
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59 void constrain();
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60 void constrain(ConstrainMode aconstrainMode);
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61 void unconstrain();
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62
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63 bool isGrabbed();
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64 void grab(int aGrabID);
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65 void drag(double ax, double ay, int aGrabID);
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66 void unGrab();
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67 void highlight();
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68 void unhighlight();
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69 void setInvMass(double aInvMass);
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70 double getTotalForceMag();
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71 void setZeroRefPos();
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72 void setFriction(double aF);
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73
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74 Spring * checkConnectedTo(Lump * otherLump);
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75
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76 // interface to scan path
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77 double scanDisplacement();
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78 double scanRadialDisplacement();
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79 double scanLumpSpeed();
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80 double scanYPos();
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81 double scanXPos();
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82 void addToScanPath();
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83 void removeFromScanPath();
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84
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85 };
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86
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87 #endif |
