26 grid3d_new (int sizex, int defx, int sizez, int defz, v3d center)  in grid3d_new()  argument
28   int x = defx;  in grid3d_new()
38   g->defx = defx;  in grid3d_new()
46     x = defx;  in grid3d_new()
49       s->vertex[x + defx * y].x = (float) (x - defx / 2) * sizex / defx;  in grid3d_new()
50       s->vertex[x + defx * y].y = 0;  in grid3d_new()
51       s->vertex[x + defx * y].z = (float) (y - defz / 2) * sizez / defz;  in grid3d_new()
80   for (x = 0; x < g->defx; x++) {  in grid3d_draw()
86       v2 = v2_array[z * g->defx + x];  in grid3d_draw()
139       for (i = 0; i < g->defx; i++)  in grid3d_update()
142     for (i = g->defx; i < s->nbvertex; i++) {  in grid3d_update()
144       s->vertex[i].y += (s->vertex[i - g->defx].y * 0.777f);  in grid3d_update()