OpenGL-Search-Algorithm-Visualization/Shape.cpp at master · donovan-prehn/OpenGL-Search-Algorithm-Visualization · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
#include "Shape.hpp"
#include <stdio.h>

Shape::Shape() {
	MC.mat[0][0] = 1.0; MC.mat[0][1] = 0.0; MC.mat[0][2] = 0.0; MC.mat[0][3] = 0.0;
	MC.mat[1][0] = 0.0; MC.mat[1][1] = 1.0; MC.mat[1][2] = 0.0; MC.mat[1][3] = 0.0;
	MC.mat[2][0] = 0.0;	MC.mat[2][1] = 0.0;	MC.mat[2][2] = 1.0;	MC.mat[2][3] = 0.0;
	MC.mat[3][0] = 0.0;	MC.mat[3][1] = 0.0;	MC.mat[3][2] = 0.0;	MC.mat[3][3] = 1.0;
	s = 1;
}


Shape::~Shape() { };

Matrix Shape::getMC() {
	return  MC;
};

void Shape::translate(GLfloat tx, GLfloat ty, GLfloat tz) {
	MC.translate(tx, ty, tz);
}

void Shape::rotate(GLfloat rx, GLfloat ry, GLfloat rz, GLfloat angle) {
	MC.rotate(rx, ry, rz, angle);
}

void Shape::rotate_mc(GLfloat rx, GLfloat ry, GLfloat rz, GLfloat angle) {
	GLfloat x,y,z;
	x=MC.mat[0][3];
	y=MC.mat[1][3];
	z=MC.mat[2][3];

	MC.rotate(rx,ry,rz,angle);

	MC.mat[0][3]=x;
	MC.mat[1][3]=y;
	MC.mat[2][3]=z;
	MC.normalize();

}

void Shape::rotate_origin(GLfloat rx, GLfloat ry, GLfloat rz, GLfloat angle) {

	Matrix* m = new Matrix();
	m->rotate(rx, ry, rz, angle);
	GLfloat v[4];
	v[0] = MC.mat[0][3];
	v[1] = MC.mat[1][3];
	v[2] = MC.mat[2][3];
	v[3] = MC.mat[3][3];
	m->multiply_vector(v);
	MC.mat[0][3] = v[0];
	MC.mat[1][3] = v[1];
	MC.mat[2][3] = v[2];
	MC.mat[3][3] = v[3];
	MC.normalize();
	delete m;

}

void Shape::scale_change(GLfloat x) {
	s += x;
}

/**
 * Shape::ctm_multiply() multiply this matrix to openGL current matrix
 */
void Shape::ctm_multiply() {
	GLfloat M[16];
	M[0] = MC.mat[0][0];
	M[1] = MC.mat[1][0];
	M[2] = MC.mat[2][0];
	M[3] = 0;
	M[4] = MC.mat[0][1];
	M[5] = MC.mat[1][1];
	M[6] = MC.mat[2][1];
	M[7] = 0;
	M[8] = MC.mat[0][2];
	M[9] = MC.mat[1][2];
	M[10] = MC.mat[2][2];
	M[11] = 0;
	M[12] = MC.mat[0][3];
	M[13] = MC.mat[1][3];
	M[14] = MC.mat[2][3];
	M[15] = 1;
	glMultMatrixf(M);

}