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Polyhedra
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PolyhedraView.h
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1992-04-16
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//
// RegularPolyhedraView - a flexible, bouncing polyhedron.
//
// Module for BackSpace.app
// 22 Nov 91 - 8 Dec 91.
// Simon Marchant, and Paul Brown (simon@math.berkeley.edu,
// pbrown@math.berkeley.edu).
//
#import <appkit/View.h>
#import "Thinker.h"
#import "BackView.h"
//#define SPRING_K 0.2
#define SPRING_K 0.15
#define SPRING_REST_LEN 150
// #define DAMPING 0.1
#define DAMPING 0.05
#define DEPTH 2
//#define MASS 10
#define MASS 15
#define TETRAHEDRON 0
#define CUBE 1
#define OCTAHEDRON 2
#define DODECAHEDRON 3
#define ICOSAHEDRON 4
#define NUM_POLYHEDRA (ICOSAHEDRON + 1)
#define MAX_NUM_VERTICES 20
#define MAX_NUM_ADJACENTS 5
#define MAX_NUM_FACES 20
#define MAX_VERTICES_PER_FACE 5
// #define INIT_VELOCITY 10
#define INIT_VELOCITY 10
//#define MAX_VEL 100
#define MAX_VEL 100
typedef struct
{
float x,y,z;
} D3_PT;
typedef struct
{
float mass;
D3_PT vel;
D3_PT pos;
NXPoint screenPos;
} VERTEX;
@interface PolyhedraView:View
{
int polyhedron;
int selectedIndex;
int numVertices;
int numAdjacents;
int numFaces;
int numDrawFaces;
int verticesPerFace;
int realAdjacents;
VERTEX vertices[MAX_NUM_VERTICES];
float restLengths[MAX_NUM_VERTICES][MAX_NUM_VERTICES];
BOOL isAdjacent[MAX_NUM_VERTICES][MAX_NUM_VERTICES];
D3_PT perspectivePt;
D3_PT backTopRight;
float damping;
BOOL noAnimation;
int backStep;
id inspectorPanel;
}
- oneStep;
- drawSelf:(const NXRect *)rects :(int)rectCount;
- initFrame:(const NXRect *)frameRect;
- useNewFrame:(const NXRect *)frameRect;
- perspectiveLineFrom:(D3_PT)pt1 to:(D3_PT)pt2;
- drawBoxInColour:(float)theGray;
- drawPolyhedron;
- erasePolyhedron;
- frameChanged:(const NXRect *)frameRect;
- setSelectedIndex:sender;
- kickIt:sender;
- inspector:sender;
@end