API tools faq
paste
Advertisement
Guest User

Untitled

a guest
May 21st, 2019
150
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
text 12.14 KB | None | 0 0
raw download clone embed print report
  1. #include <GLFW/glfw3.h>
  2. #include <cstdlib>
  3. #include <cstdio>
  4. #include <iostream>
  5. #include <GL/glu.h>
  6. #include <vector>
  7. #include <cmath>
  8. #include <time.h>
  9. #include <SOIL/SOIL.h>
  10. #include <fstream>
  11.  
  12.  
  13. using namespace std;
  14.  
  15. #define PI 3.14159265
  16.  
  17. bool leftButtonIsPressed = false;
  18. bool polygonMode = false;
  19. double xPosOld = 0, yPosOld = 0;
  20. double G= -1.5;
  21. clock_t global_time;
  22. bool modA = false, modT=false;
  23. GLfloat material_diffuse[] = {1.0, 1.0, 1.0, 1.0};
  24. GLuint textureID;
  25. GLfloat light0_diffuse[] = {1,1,0};
  26. GLfloat light0_position[] = {1.0, 1.0, 1.0, 1.0};
  27. GLfloat light0_ambient[] = {1, 1, 1 };
  28. GLfloat light0_spot_direction[] = {-1.0, -1.0, -1.0};
  29.  
  30. void keyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
  31. void cursorPos(GLFWwindow* window, double xpos, double ypos);
  32. void mouseCallback(GLFWwindow *window, int button, int action, int mods);
  33. void scrollCallback(GLFWwindow* window, double xOffs, double yOffs);
  34.  
  35. struct Point {
  36. GLdouble x;
  37. GLdouble y;
  38. GLdouble z;
  39. };
  40.  
  41. class Pyramid {
  42. public:
  43. vector<vector<Point>> points;
  44. Pyramid(double r, double h, int n, int m, double alpha);
  45.  
  46. void construct();
  47. void draw();
  48.  
  49. float scaleValue = 1.5;
  50. float xAngle = 0, yAngle = 0, zAngle = 0;
  51. float dx = 0, dy = 0;
  52. double h;
  53. double V=0;
  54. double min_y=0;
  55. int n;
  56. int m;
  57. double alpha;
  58. double R = 0.4;
  59.  
  60. };
  61.  
  62. Pyramid::Pyramid(double r, double h, int n, int m, double alpha):
  63. R(r), h(h), n(n+1), m(m), alpha(alpha) {
  64. construct();
  65. }
  66.  
  67. void Pyramid::construct() {
  68. points.resize(n);
  69. points[0].resize(m);
  70. for (int i=0; i<m; i++){
  71. points[0][i]= Point {0, 0, 0};
  72. }
  73. for (int j=1; j<n; j++) {
  74. points[j].resize(m);
  75. double gamma = (alpha*(j-1))/n;
  76. double cosVal = cos(gamma);
  77. double sinVal = sin(gamma);
  78.  
  79. for (int i = 0; i < m; i++) {
  80. double fi = PI * 2 * i / m;
  81. double xt = R*(1 - (double)(j-1)/n) * cos(fi);
  82. double zt = R*(1 - (double)(j-1)/n) * sin(fi);
  83. double yt = (h*(j-1))/n;
  84. double xtOld = xt;
  85. xt = xt*cosVal - zt*sinVal;
  86. zt = xtOld*sinVal + zt*cosVal;
  87. points[j][i] = {xt, yt, zt};
  88. }
  89. }
  90. for (int i=0; i<m; i++){
  91. points[n-1][i]= Point {0, h, 0};
  92. }
  93. }
  94.  
  95. void Pyramid::draw() {
  96. glFrontFace(GL_CW);
  97. glBegin(GL_TRIANGLE_STRIP);
  98.  
  99. for (int i = 0; i < n-1; i++) {
  100.  
  101. double colorVal = (i+0.5)/n;
  102. glColor3d(colorVal,colorVal,colorVal);
  103.  
  104. for (int j = 0; j < m; j++) {
  105.  
  106. glBindTexture(GL_TEXTURE_2D, textureID);
  107. glBegin(GL_TRIANGLES);
  108.  
  109. double x0= points[i][j].x, x1= points[(i+1)%n][j].x, x2= points[i][(j+1)%m].x;
  110. double y0= points[i][j].y, y1= points[(i+1)%n][j].y, y2= points[i][(j+1)%m].y;
  111. double z0= points[i][j].z, z1= points[(i+1)%n][j].z, z2= points[i][(j+1)%m].z;
  112.  
  113. glNormal3f((y1-y0)*(z2-z1) - (z1-z0)*(y2-y1),
  114. (x1-x0)*(z2-z1) - (z1-z0)*(x2-x1),
  115. (x1-x0)*(y2-y1) - (y1-y0)*(x2-x1));
  116.  
  117. glTexCoord2f(0.0f, 0.0f);
  118. glVertex3f(x0, y0, z0);
  119. glTexCoord2f(1.0f, 0.0f);
  120. glVertex3f(x1, y1, z1);
  121. glTexCoord2f(0.5f, 1.0f);
  122. glVertex3f(x2, y2, z2);
  123.  
  124. x0= points[i][(j+1)%m].x, x1= points[(i+1)%n][j].x, x2= points[i+1][(j+1)%m].x;
  125. y0= points[i][(j+1)%m].y, y1= points[(i+1)%n][j].y, y2= points[i+1][(j+1)%m].y;
  126. z0= points[i][(j+1)%m].z, z1= points[(i+1)%n][j].z, z2= points[i+1][(j+1)%m].z;
  127.  
  128. glNormal3f((y1-y0)*(z2-z1) - (z1-z0)*(y2-y1),
  129. (x1-x0)*(z2-z1) - (z1-z0)*(x2-x1),
  130. (x1-x0)*(y2-y1) - (y1-y0)*(x2-x1));
  131.  
  132. glTexCoord2f(0.0f, 0.0f);
  133. glVertex3f(x0, y0, z0);
  134. glTexCoord2f(1.0f, 0.0f);
  135. glVertex3f(x1, y1, z1);
  136. glTexCoord2f(0.5f, 1.0f);
  137. glVertex3f(x2, y2, z2);
  138. glEnd();
  139.  
  140. }
  141. }
  142. glEnd();
  143. }
  144.  
  145. auto pyramid = new Pyramid(0.5,1,15, 5,PI/3);
  146. auto smallPyramid = new Pyramid(0.2, 1, 15, 5, PI/3);
  147.  
  148. void animation(){
  149. if (pyramid->min_y<= -1){
  150. pyramid->V*=-1;
  151. }
  152.  
  153. clock_t local_time= clock();
  154. double time= ((double)local_time)/CLOCKS_PER_SEC - ((double)global_time)/CLOCKS_PER_SEC ;
  155. global_time= local_time;
  156.  
  157. pyramid->V += G*time;
  158.  
  159. double dy = time * pyramid->V;
  160.  
  161. for (vector<vector<Point>>::iterator it = pyramid->points.begin(); it!=pyramid->points.end(); ++it){
  162. for (vector<Point>::iterator it2= (*it).begin(); it2!= (*it).end(); ++it2){
  163. (*it2).y+=dy;
  164. }
  165. }
  166. pyramid->min_y += dy;
  167.  
  168. }
  169.  
  170. int main()
  171. {
  172. if (!glfwInit()) {
  173. exit(EXIT_FAILURE);
  174. }
  175. glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
  176. glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
  177. int width = 800, height = 600;
  178.  
  179. GLFWwindow* window = glfwCreateWindow(width, height, "Anon widow", nullptr, nullptr);
  180.  
  181. if (!window) {
  182. glfwTerminate();
  183. exit(EXIT_FAILURE);
  184. }
  185.  
  186.  
  187. glfwMakeContextCurrent(window);
  188. glfwSetKeyCallback(window, keyCallback);
  189. glfwSetCursorPosCallback(window, cursorPos);
  190. glfwSetMouseButtonCallback(window, mouseCallback);
  191. glfwSetScrollCallback(window, scrollCallback);
  192.  
  193. glEnable(GL_NORMALIZE);
  194. glEnable(GL_LIGHTING);
  195. glEnable(GL_LIGHT0);
  196. glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
  197. glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, material_diffuse);
  198.  
  199. glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_diffuse);
  200. glLightfv(GL_LIGHT0, GL_POSITION, light0_position);
  201. glLightf(GL_LIGHT0, GL_SPOT_CUTOFF, 50);
  202. glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, light0_spot_direction);
  203. glLightf(GL_LIGHT0, GL_SPOT_EXPONENT, 30.0);
  204.  
  205. int w= 512, h= 512;
  206. unsigned char* image = SOIL_load_image("./iye.bmp", &w, &h, 0, SOIL_LOAD_RGB);
  207. glGenTextures(1, &textureID);
  208. glBindTexture(GL_TEXTURE_2D, textureID);
  209.  
  210. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
  211. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
  212. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  213. glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  214. glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, image);
  215. SOIL_free_image_data(image);
  216. glBindTexture(GL_TEXTURE_2D, 0);
  217.  
  218.  
  219.  
  220.  
  221. glEnable(GL_DEPTH_TEST);
  222. glViewport(0, 0, width, height);
  223.  
  224. glMatrixMode(GL_PROJECTION);
  225.  
  226. gluPerspective(60, (float)width/height, 1, 100);
  227. glTranslated(0,0,-6);
  228. glRotated(45, 0,1,0);
  229.  
  230. while (!glfwWindowShouldClose(window)) {
  231.  
  232. if (modT){
  233. glEnable(GL_TEXTURE_2D);
  234. } else {
  235. glDisable(GL_TEXTURE_2D);
  236. }
  237.  
  238. glClearColor(0.0,0.2,0.2,1);
  239. glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  240. glMatrixMode(GL_MODELVIEW);
  241. glLoadIdentity();
  242. glTranslatef(pyramid->dx,pyramid->dy,0);
  243.  
  244. glRotated(pyramid->xAngle, 0,1,0);
  245. glRotated(pyramid->yAngle, 1,0,0);
  246. glRotated(pyramid->zAngle, 0, 0, 1);
  247. glScalef(pyramid->scaleValue, pyramid->scaleValue, pyramid->scaleValue);
  248.  
  249. glColor3f(0,0,1);
  250. glBegin(GL_POLYGON);
  251. glVertex3f(1, -1, 1);
  252. glVertex3f(1, -1, -1);
  253. glVertex3f(-1, -1, -1);
  254. glVertex3f(-1, -1, 1);
  255. glEnd();
  256.  
  257. if (modA) animation();
  258. pyramid->draw();
  259.  
  260. glLoadIdentity();
  261. glTranslatef(smallPyramid->dx, smallPyramid->dy, 0);
  262. glScalef(smallPyramid->scaleValue, smallPyramid->scaleValue, smallPyramid->scaleValue);
  263.  
  264. glfwSwapBuffers(window);
  265. glfwPollEvents();
  266. }
  267.  
  268. glfwDestroyWindow(window);
  269. glfwTerminate();
  270. exit(EXIT_SUCCESS);
  271. }
  272.  
  273. void save(){
  274. std::ofstream ttt;
  275. ttt.open("./position.txt");
  276. if (ttt.is_open()){
  277. ttt << "min_y = (" << pyramid->min_y << ") V = ("<< pyramid->V << ") scaleValue = ("<< pyramid->scaleValue << ") xAngle = ("<< pyramid->xAngle << ") yAngle = ("<< pyramid->yAngle << ") zAngle = ("<< pyramid->zAngle << ")";
  278. }
  279. }
  280.  
  281. //min_y = (-0.3163) V = (-0.973971) scaleValue = (1.5) xAngle = (137.736) yAngle = (-60.6624) zAngle = (0)
  282.  
  283. void load(){
  284. std::ifstream file("./position.txt");
  285. std::string s, t="";
  286. getline(file, s);
  287. file.close();
  288. int i=0;
  289.  
  290. for (; s[i]!= '('; i++);
  291. i++;
  292. for (; s[i]!= ')'; t+=s[i++]);
  293. double min_y= std::stod(t);
  294. t="";
  295.  
  296. pyramid = new Pyramid(0.5,1,15, 5,PI/3);
  297.  
  298. for (vector<vector<Point>>::iterator it = pyramid->points.begin(); it!=pyramid->points.end(); ++it){
  299. for (vector<Point>::iterator it2= (*it).begin(); it2!= (*it).end(); ++it2){
  300. (*it2).y+=min_y;
  301. }
  302. }
  303.  
  304. pyramid->min_y = min_y;
  305.  
  306. for (; s[i]!= '('; i++);
  307. i++;
  308. for (; s[i]!= ')'; t+=s[i++]);
  309. pyramid-> V = std::stod(t);
  310. t="";
  311.  
  312. for (; s[i]!= '('; i++);
  313. i++;
  314. for (; s[i]!= ')'; t+=s[i++]);
  315. pyramid-> scaleValue= std::stod(t);
  316. t="";
  317.  
  318. for (; s[i]!= '('; i++);
  319. i++;
  320. for (; s[i]!= ')'; t+=s[i++]);
  321. pyramid-> xAngle= std::stod(t);
  322. t="";
  323.  
  324. for (; s[i]!= '('; i++);
  325. i++;
  326. for (; s[i]!= ')'; t+=s[i++]);
  327. pyramid-> yAngle= std::stod(t);
  328. t="";
  329.  
  330. for (; s[i]!= '('; i++);
  331. i++;
  332. for (; s[i]!= ')'; t+=s[i++]);
  333. pyramid-> zAngle= std::stod(t);
  334. t="";
  335.  
  336.  
  337.  
  338. }
  339.  
  340.  
  341. void keyCallback(GLFWwindow* window, int key, int scancode, int action, int mods) {
  342. if (!action || action == GLFW_REPEAT) {
  343. switch (key) {
  344. case GLFW_KEY_X:
  345. load();
  346. break;
  347. case GLFW_KEY_Z:
  348. save();
  349. break;
  350. case GLFW_KEY_SPACE:
  351. global_time= clock();
  352. modA^=true;
  353. break;
  354. case GLFW_KEY_UP:
  355. pyramid->dy += 0.1;
  356. break;
  357. case GLFW_KEY_DOWN:
  358. pyramid->dy -= 0.1;
  359. break;
  360. case GLFW_KEY_LEFT:
  361. pyramid->dx -= 0.1;
  362. break;
  363. case GLFW_KEY_RIGHT:
  364. pyramid->dx += 0.1;
  365. break;
  366. case GLFW_KEY_C:
  367. if (!polygonMode) {
  368. glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
  369. polygonMode = true;
  370. } else {
  371. glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
  372. polygonMode = false;
  373. }
  374. break;
  375. case GLFW_KEY_T:
  376. modT^=true;
  377. break;
  378. case GLFW_KEY_S:
  379. pyramid->zAngle -= 4;
  380. break;
  381. case GLFW_KEY_W:
  382. pyramid->zAngle += 4;
  383. break;
  384. case GLFW_KEY_PAGE_UP:
  385. pyramid->n++;
  386. smallPyramid->n++;
  387. pyramid->construct();
  388. smallPyramid->construct();
  389. break;
  390. case GLFW_KEY_PAGE_DOWN:
  391. pyramid->n--;
  392. smallPyramid->n--;
  393. pyramid->construct();
  394. smallPyramid->construct();
  395. break;
  396. case GLFW_KEY_A:
  397. pyramid->alpha-=0.2;
  398. smallPyramid->alpha-=0.2;
  399. pyramid->construct();
  400. smallPyramid->construct();
  401. break;
  402. case GLFW_KEY_D:
  403. pyramid->alpha+=0.2;
  404. smallPyramid->alpha+=0.2;
  405. pyramid->construct();
  406. smallPyramid->construct();
  407. break;
  408. case GLFW_KEY_P:
  409. pyramid->m++;
  410. smallPyramid->m++;
  411. pyramid->construct();
  412. smallPyramid->construct();
  413. break;
  414. case GLFW_KEY_O:
  415. pyramid->m--;
  416. smallPyramid->m--;
  417. pyramid->construct();
  418. smallPyramid->construct();
  419. break;
  420. default:
  421. break;
  422. }
  423. }
  424. }
  425.  
  426. void mouseCallback(GLFWwindow *window, int button, int action, int mods) {
  427. leftButtonIsPressed = static_cast<bool>(action);
  428. }
  429.  
  430.  
  431. void cursorPos(GLFWwindow* window, double xpos, double ypos) {
  432. if (leftButtonIsPressed) {
  433. pyramid->xAngle -= (xpos - xPosOld) * 0.6;
  434. pyramid->yAngle -= (ypos - yPosOld) * 0.6;
  435. }
  436. xPosOld = xpos;
  437. yPosOld = ypos;
  438. }
  439.  
  440. void scrollCallback(GLFWwindow* window, double xOffs, double yOffs) {
  441. pyramid->scaleValue += yOffs * 0.05;
  442. }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!