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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
#include <GL/glext.h>
#include <stdlib.h>
/* collision.c */
//gcc -o collision collision.c -lglut
#define VOL 150
#define NP 7
struct square {
int x; // x position
int y; // y position
int w; // size
int v; // vertical velocity
int vd; // vertical direction (1 or -1)
int h; // horizontal velocity
int hd; // horizontal direction (1 or -1)
} *piec;
void scene() {
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0.0f, 1.0f, 0.0f);
glRecti(piec[0].x,piec[0].y,piec[0].x+piec[0].w,piec[0].y-piec[0].w);
glColor3f(0.0f, 0.5f, 0.0f);
glRecti(piec[1].x,piec[1].y,piec[1].x+piec[1].w,piec[1].y-piec[1].w);
glColor3f(0.0f, 0.0f, 0.5f);
glRecti(piec[2].x,piec[2].y,piec[2].x+piec[2].w,piec[2].y-piec[2].w);
glColor3f(1.0f, 1.0f, 0.0f);
glRecti(piec[3].x,piec[3].y,piec[3].x+piec[3].w,piec[3].y-piec[3].w);
glColor3f(0.5f, 0.0f, 0.0f);
glRecti(piec[4].x,piec[4].y,piec[4].x+piec[4].w,piec[4].y-piec[4].w);
glColor3f(0.0f, 0.0f, 0.0f);
glRecti(piec[5].x,piec[5].y,piec[5].x+piec[5].w,piec[5].y-piec[5].w);
glColor3f(1.0f, 1.0f, 1.0f);
glRecti(piec[6].x,piec[6].y,piec[6].x+piec[6].w,piec[6].y-piec[6].w);
glutSwapBuffers();
}
void setup(float R, float G, float B, GLdouble P) {
GLdouble N=0-P;
glClearColor(R,G,B,1.0f);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(N,P,N,P,N,P);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void Vcollision (int P) {
int i;
for (i=0;i<NP;i++) {
if (i==P) continue;
if ((piec[P].y==piec[i].y-piec[i].w) && (piec[P].x<=piec[i].x+piec[i].w) &&
(piec[P].x+piec[P].w>=piec[i].x)) {piec[P].vd=-1;
piec[P].y-=1;
if (piec[i].vd==-1) piec[i].vd=1;
if (piec[P].v>=piec[i].v) piec[i].v--;
else {piec[P].v++;piec[i].v++;}}
else if ((piec[P].y-piec[P].w==piec[i].y) && (piec[P].x<=piec[i].x+piec[i].w) &&
(piec[P].x+piec[P].w>=piec[i].x)) {piec[P].vd=1;
piec[P].y+=1;
if (piec[i].vd==1) piec[i].vd=-1;
if (piec[P].v>=piec[i].v) piec[i].v--;
else {piec[P].v++;piec[i].v++;}}
}
}
void Hcollision (int P) {
int i;
for (i=0;i<NP;i++) {
if (i==P) continue;
if ((piec[P].x==piec[i].x+piec[i].w) && (piec[P].y>=piec[i].y-piec[i].w) &&
(piec[P].y-piec[P].w<=piec[i].y)) {piec[P].hd=1;
piec[P].x+=1;
if (piec[i].hd==1) piec[i].hd=-1;
if (piec[P].h>=piec[i].h) piec[i].h--;
else {piec[P].h++;piec[i].h++;}}
else if ((piec[P].x+piec[P].w==piec[i].x) && (piec[P].y>=piec[i].y-piec[i].w) &&
(piec[P].y-piec[P].w<=piec[i].y)) {piec[P].hd=-1;
piec[P].x-=1;
if (piec[i].hd==-1) piec[i].hd=1;
if (piec[P].h>=piec[i].h) piec[i].h--;
else {piec[P].h++;piec[i].h++;}}
}
}
void move(int T) {
int rendintrv, i;
for (rendintrv=0; rendintrv<15; rendintrv++) {
if (T==1000001) T=1;
for (i=0; i<NP; i++) {
if ((piec[i].v>0) && (T%piec[i].v==0)) {piec[i].y+=piec[i].vd;
if (piec[i].y-piec[i].w<=-VOL) {piec[i].vd=1;
piec[i].y=-VOL+piec[i].w+1; piec[i].v--;}
else if (piec[i].y>=VOL) {piec[i].vd=-1;
piec[i].y=VOL-1; piec[i].v--;}
else Vcollision(i);
}
if ((piec[i].h>0) && (T%piec[i].h==0)) {piec[i].x+=piec[i].hd;
if (piec[i].x+piec[i].w>=VOL) {piec[i].hd=-1;
piec[i].x=VOL-piec[i].w-1; piec[i].h--;}
else if (piec[i].x<=-VOL) {piec[i].hd=1;
piec[i].x=-VOL+1; piec[i].h--;}
else Hcollision(i);
}
if (piec[i].v<=1) piec[i].v=2; // min-max speeds
else if (piec[i].v>30) piec[i].v=50;
if (piec[i].h<=1) piec[i].h=2;
else if (piec[i].h>30) piec[i].h=50;
}
T++;
}
scene();
glutTimerFunc(1,move,T);
}
int main(int argc, char *argv[]) {
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
glutInitWindowSize(900,900);
glutCreateWindow("openGL test");
glutDisplayFunc(scene);
glutTimerFunc(1500,move,1);
piec=malloc(NP*sizeof(*piec));
piec[0].x=-100;piec[0].y=0; piec[0].w=30; piec[0].v=8;piec[0].vd=1; piec[0].h=4;piec[0].hd=1;
piec[1].x=10;piec[1].y=50; piec[1].w=18; piec[1].v=4;piec[1].vd=-1; piec[1].h=8;piec[1].hd=-1;
piec[2].x=50;piec[2].y=0; piec[2].w=14; piec[2].v=8;piec[2].vd=-1; piec[2].h=8;piec[2].hd=1;
piec[3].x=75;piec[3].y=90; piec[3].w=22; piec[3].v=6;piec[3].vd=1; piec[3].h=6;piec[3].hd=-1;
piec[4].x=-50;piec[4].y=0; piec[4].w=60; piec[4].v=5;piec[4].vd=-1; piec[4].h=5;piec[4].hd=1;
piec[5].x=100;piec[5].y=-60; piec[5].w=45; piec[5].v=3;piec[5].vd=-1; piec[5].h=6;piec[5].hd=1;
piec[6].x=-120;piec[6].y=-100; piec[6].w=27; piec[6].v=7;piec[6].vd=-1; piec[6].h=4;piec[6].hd=1;
setup(1.0,0.0,1.0,VOL);
glutMainLoop();
return 0;
}
|
