70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
/******************************************************************************
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Plush Version 1.2
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read_jaw.c
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Jaw3D Object Reader
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Copyright (c) 1996-2000, Justin Frankel
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*******************************************************************************
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Notes on .JAW files:
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This is a file format created by Jawed Karim for Jaw3D
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(http://jaw3d.home.ml.org).
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-- updated 11/6/00 - www.jawed.com
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It is very simple, and lets one easily create ones own models using only
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a text editor. The format is pretty simple:
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The first line must be "Light: (x,y,z)" where x,y, and z are the x y and
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z components of the lightsource vector (I think ;)
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A series of lines, numbered 0 to n, in the format of
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"i: x y z", where i is the vertex number (which should be listed in
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order, and x y and z are the coordinates of that vertex.
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A series of lines, having the format "tri a, b, c" where a b and c are
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the vertices that the face uses. It is unclear at this time which
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way the vertices are listed (ccw or cw), so just make em consistent
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and you can always use plFlipObjectNormals() on the loaded object.
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That is it! (I told ya it was simple).
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******************************************************************************/
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#include "plush.h"
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pl_Obj *plReadJAWObj(char *filename, pl_Mat *m) {
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FILE *jawfile;
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pl_Obj *obj;
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pl_uInt32 i;
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pl_sInt crap;
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char line[256];
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pl_uInt32 total_points = 0, total_polys = 0;
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if ((jawfile = fopen(filename, "r")) == NULL) return 0;
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fgets(line, 256, jawfile); /* Ignores lightsource info */
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while (fgets(line, 256, jawfile) != NULL)
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if (strstr(line, ":") != NULL) total_points++;
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rewind(jawfile); fgets(line, 256, jawfile);
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while (fgets(line, 256, jawfile) != NULL)
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if (strstr(line, "tri") != NULL) total_polys++;
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rewind(jawfile); fgets(line, 256, jawfile);
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obj = plObjCreate(total_points,total_polys);
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i = 0;
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while (fgets(line, 256, jawfile) != NULL) if (strstr(line, ":") != NULL) {
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float x, y, z;
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sscanf(line, "%d: %f %f %f",&crap,&x,&y,&z);
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obj->Vertices[i].x = (pl_Float) x;
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obj->Vertices[i].y = (pl_Float) y;
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obj->Vertices[i].z = (pl_Float) z;
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i++;
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}
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rewind(jawfile); fgets(line, 256, jawfile);
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i = 0;
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while (fgets(line, 256, jawfile) != NULL) if (strstr(line, "tri") != NULL) {
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pl_uInt32 a,b,c;
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sscanf(line, "tri %ld, %ld, %ld", &a, &b, &c);
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obj->Faces[i].Vertices[0] = obj->Vertices + a;
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obj->Faces[i].Vertices[1] = obj->Vertices + c;
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obj->Faces[i].Vertices[2] = obj->Vertices + b;
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obj->Faces[i].Material = m;
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i++;
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}
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fclose(jawfile);
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plObjCalcNormals(obj);
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return obj;
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}
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