Parallel Programming - Make single threaded version

[matches/honours.git] / course / semester2 / pprog / assignment1 / nbody.c

diff --git a/course/semester2/pprog/assignment1/nbody.c b/course/semester2/pprog/assignment1/nbody.c
index 5891d14..0776160 100644 (file)
--- a/course/semester2/pprog/assignment1/nbody.c
+++ b/course/semester2/pprog/assignment1/nbody.c
@@ -1,7 +1,8 @@
-// nbody.cpp : Template program for N-body
-// Copyright UWA, 2012
-
-#define _ANSI_SOURCE
+/**
+ * @file nbody.c
+ * @author Sam Moore (20503628) 2012
+ * @purpose N-Body simulator - Definition of simulation functions; single threaded version
+ */
 
 #include <math.h>
 #include <stdlib.h>
@@ -12,42 +13,6 @@
 #include <GL/gl.h>
 #include <GL/glut.h>
 
-#define M_PI        3.14159265358979323846264338327950288   /* pi */
-#define WIDTH 800
-#define HEIGHT 800
-#define POINT_SIZE 1
-#define POSITION_X 112
-#define POSITION_Y 20
-#define WORLD_LEFT -10000
-#define WORLD_RIGHT 10000
-#define WORLD_BOTTOM -10000
-#define WORLD_TOP 10000
-#define VIEW_ANGLE 45
-#define RHO 100
-#define WORLD_NEAR 0.1
-#define WORLD_FAR 1000000
-#define BALL_SIZE 0.5
-#define REFRESH_RATE 0.001
-#define LINE_SIZE 1000
-#define G 6.67428E-11
-#define DELTA_T 0.05
-
-#define square(x) ((x)*(x))
-
-typedef struct {
-       double mass;
-       double X;
-       double Y;
-       double Z;
-       double Vx;
-       double Vy;
-       double Vz;
-       double Fx;
-       double Fy;
-       double Fz;
-       int color;
-} Particle;
-
 double previousTime, eyeTheta, eyePhi, eyeRho;
 float look[3];
 int windowWidth, windowHeight, upY;
@@ -58,71 +23,7 @@ Particle *body;
 int N;
 int numberOfProcessors=1;
 
-/*
- * Initialization of graphics
- */
-void Init(void) {
-    
-       glClearColor(1.0,1.0,1.0,0.0);
-       glColor3f(0.0f, 0.0f, 0.0f);
-       glPointSize(POINT_SIZE);
-       glMatrixMode(GL_PROJECTION);
-       glLoadIdentity();
-
-       /*init lighting */
-
-       GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 };
-       GLfloat mat_shininess[] = { 50.0 };
-       GLfloat light_position[] = { 1.0, 1.0, 0.0, 0.0 };
-       glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
-       glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
-       glLightfv(GL_LIGHT0, GL_POSITION, light_position);
 
-    glColorMaterial(GL_FRONT,GL_DIFFUSE);                // Set Color Capability
-    
-       glEnable(GL_LIGHTING);
-       glEnable(GL_LIGHT0);
-       glEnable(GL_DEPTH_TEST);
-    
-    glEnable(GL_COLOR_MATERIAL);                      // Enable color
-
-       double displayRatio = 1.0 * WIDTH / HEIGHT;
-       windowWidth = WIDTH;
-       windowHeight = HEIGHT;
-       previousTime = clock();
-       eyeTheta = 0;
-    eyePhi = 0.5 * M_PI;
-    eyeRho = RHO;
-    upY = 1;
-       look[0] = 0;
-       look[1] = 0;
-       look[2] = 0;
-    gluPerspective(VIEW_ANGLE, displayRatio, WORLD_NEAR, WORLD_FAR);  
-}
-
-/*
- * This function redraws the screen after the positions of particles 
- * have been updated
- */
-void Display(void) {
-       glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-       glMatrixMode(GL_MODELVIEW);
-    glLoadIdentity();
-    gluLookAt(eyeRho * sin(eyePhi) * sin(eyeTheta), eyeRho * cos(eyePhi),
-                    eyeRho * sin(eyePhi) * cos(eyeTheta),
-                                       look[0], look[1], look[2], 0, upY, 0);
-
-       for (int i = 0; i < N; i++) {
-        //glClearColor(1.0,1.0,1.0,0.0);
-               glColor3f(0.0f, body[i].mass/1e11*100, 0.0f);
-        //glColor3f(1.0f, 0.0f, 0.0f);
-               glPushMatrix(); // to save the current matrix
-               glTranslated(SCALE*body[i].X, SCALE*body[i].Y, SCALE*body[i].Z);
-               glutSolidSphere (BALL_SIZE, 10, 10);
-               glPopMatrix(); // restore the previous matrix
-       }
-       glFlush();
-}
 
 /*
  * Prints the body on screen