X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=meshfrac;a=blobdiff_plain;f=main.c;h=724fd70e5c1394e14183e68c5e698bdf978d4d5b;hp=07e67c309bbc6f6dc2227a6ac85af863c748ec88;hb=0b9d8564e9c3785a69829a8faa67f5169185d8fd;hpb=3266468aa891bea6bda03f64ecba7da2a29d09c3

diff --git a/main.c b/main.c
index 07e67c3..724fd70 100644
--- a/main.c
+++ b/main.c
@@ -6,6 +6,7 @@
 #include <cgmath/cgmath.h>
 #include "cmesh.h"
 #include "meshgen.h"
+#include "frac.h"
 #include "sdr.h"
 
 static const char *vsdr_src =
@@ -50,9 +51,15 @@ static float proj_mat[16], view_mat[16];
 static int bnstate[8];
 static int mx, my;
 
+static struct fracture frac;
 static struct cmesh *mesh;
 static unsigned int sdr;
 
+static int cur, pending;
+static int show_orig = 1;
+static int show_points;
+
+
 int main(int argc, char **argv)
 {
 	glutInit(&argc, argv);
@@ -106,11 +113,14 @@ static int init(void)
 	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, specular);
 	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 60);
 
-	bind_program(sdr);
-
 	mesh = cmesh_alloc();
 	gen_torus(mesh, 2, 0.8, 24, 12, 1, 1);
 
+	if(frac_init(&frac) == -1) {
+		return -1;
+	}
+	frac_mesh(&frac, mesh);
+
 	return 0;
 }
 
@@ -120,8 +130,56 @@ static void cleanup(void)
 	free_program(sdr);
 }
 
+static void update(void)
+{
+	if(pending > cur) {
+		switch(cur) {
+		case 0:
+			if(frac_gen_points(&frac, 16) == -1) {
+				cur++;
+			} else {
+				pending = cur;
+			}
+			show_points = 1;
+			break;
+
+		case 1:
+			if(frac_build_cells(&frac) != -1) {
+				cur++;
+			} else {
+				pending = cur;
+			}
+			break;
+
+		case 2:
+			if(frac_build_shell(&frac) != -1) {
+				cur++;
+			} else {
+				pending = cur;
+			}
+			break;
+
+		case 3:
+			if(frac_build_walls(&frac) != -1) {
+				cur++;
+			} else {
+				pending = cur;
+			}
+			break;
+
+		default:
+			break;
+		}
+		if(pending > cur) glutPostRedisplay();
+	}
+}
+
 static void display(void)
 {
+	int i, num;
+
+	update();
+
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
 	cgm_mtranslation(view_mat, 0, 0, -view_dist);
@@ -131,7 +189,30 @@ static void display(void)
 	glMatrixMode(GL_MODELVIEW);
 	glLoadMatrixf(view_mat);
 
-	cmesh_draw(mesh);
+	if(show_orig) {
+		bind_program(sdr);
+		cmesh_draw(mesh);
+	}
+	if(show_points) {
+		num = frac_num_cells(&frac);
+		bind_program(0);
+
+		glPushAttrib(GL_ENABLE_BIT);
+		glDisable(GL_DEPTH_TEST);
+		glDisable(GL_LIGHTING);
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_ONE, GL_ONE);
+
+		glPointSize(2.0f);
+		glBegin(GL_POINTS);
+		glColor3f(0.1, 0.8, 0.1);
+		for(i=0; i<num; i++) {
+			glVertex3fv(&frac.cells[i].pt.x);
+		}
+		glEnd();
+
+		glPopAttrib();
+	}
 
 	assert(glGetError() == GL_NO_ERROR);
 	glutSwapBuffers();
@@ -150,9 +231,30 @@ static void reshape(int x, int y)
 
 static void keydown(unsigned char key, int x, int y)
 {
+	int n;
+
 	switch(key) {
 	case 27:
 		exit(0);
+
+	case 'o':
+		show_orig ^= 1;
+		glutPostRedisplay();
+		break;
+
+	case 'p':
+		show_points ^= 1;
+		glutPostRedisplay();
+		break;
+
+	default:
+		if(key >= '1' && key <= '4') {
+			n = key - '0';
+			if(cur < n) {
+				pending = n;
+				glutPostRedisplay();
+			}
+		}
 	}
 }