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#include <iostream> |
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#include <fstream> |
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#include <string> |
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#include <vector> |
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#include "txtprt_import.h" |
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#include "entity.h" |
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#include "util.h" |
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|
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using namespace std; |
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|
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// FIXME: In case of failed loading a memory leak can happen |
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|
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entity* txtprt_parser::read (string filename) { |
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double tmpn; |
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string tmps; |
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int i, o; |
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|
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entity *e = new entity; |
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entity_container *ec = new entity_container; |
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e->set (ec); |
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|
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ifs.open (filename.c_str(), ifstream::in); |
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while (ifs.good ()) { |
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char c[1024]; |
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ifs.getline (c, 1024); |
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line_data += (string) c + "\n"; |
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} |
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ifs.close(); |
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|
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double objs; |
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|
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match_section ('O', objs); |
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|
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for (o = 0; o < objs; o++) { |
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double c1, c2, c3, c4, l0, l1, l2; |
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match_section ('M', tmps); |
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match_section ('L', tmps); |
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match_number (l0); match_space (); match_number (l1); match_space (); match_number (l2); match_nl (); |
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match_section ('T', tmps); |
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|
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material m; |
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match_number (c1); match_space (); match_number (c2); match_space (); match_number (c3); match_space (); match_number (c4); match_nl (); |
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m.diffuse = colour (c1, c2, c3, c4); |
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match_number (c1); match_space (); match_number (c2); match_space (); match_number (c3); match_space (); match_number (c4); match_nl (); |
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m.specular = colour (c1, c2, c3, c4); |
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match_number (c1); match_space (); match_number (c2); match_space (); match_number (c3); match_space (); match_number (c4); match_nl (); |
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m.emission = colour (c1, c2, c3, c4); |
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match_number (c1); match_nl (); |
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m.shininess = (GLfloat) c1; |
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|
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match_section ('V', tmpn); |
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if (tmpn <= 0) |
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throw txtprt_i_exception ("No Vertices?!"); |
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|
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vector<vertex2d> verts; |
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for (i = 0; i < tmpn; i++) { |
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double x, y, z; |
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match_number (x); |
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match_space (); |
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match_number (y); |
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match_space (); |
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match_number (z); |
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match_nl (); |
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verts.push_back (vertex2d (point (l0 + x, l1 + y, l2 + z), vec3 (0, 0, 1))); |
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// FIXME: propably vertex coloUrs ? |
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} |
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match_section ('N', tmpn); |
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if (tmpn > verts.size()) { throw txtprt_i_exception ("Too many vertex normals!!"); } |
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for (i = 0; i < tmpn; i++) { |
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double x, y, z; |
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match_number (x); |
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match_space (); |
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match_number (y); |
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match_space (); |
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match_number (z); |
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match_nl (); |
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verts[i].n = vec3 (x, y, z); |
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} |
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char tmpc; |
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match_asection (tmpc, tmpn); |
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if (tmpc == 'U') { |
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for (i = 0; i < tmpn; i++) { |
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double u, v; |
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match_number (u); |
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match_space (); |
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match_number (v); |
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match_nl (); |
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verts[i].t = texc (u,v); |
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} |
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match_section ('A', tmpn); |
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} |
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vector<vertex2d> vd; |
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for (i = 0; i < tmpn; i++) { |
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double a, b, c; |
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match_number (a); |
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if (verts.size () < a) |
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throw txtprt_i_exception ("Vertex a out of range!"); |
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match_space (); |
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match_number (b); |
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if (verts.size () < b) |
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throw txtprt_i_exception ("Vertex b out of range!"); |
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match_space (); |
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match_number (c); |
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if (verts.size () < c) |
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throw txtprt_i_exception ("Vertex c out of range!"); |
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match_nl (); |
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double smooth_fl; |
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match_number (smooth_fl); match_nl (); |
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if (!smooth_fl) { |
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point ap = verts[(int)a].p; |
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point bp = verts[(int)b].p; |
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point cp = verts[(int)c].p; |
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vec3 nv = normalize (cross (vec3 (cp.x - bp.x, cp.y - bp.y, cp.z - bp.z), |
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vec3 (ap.x - bp.x, ap.y - bp.y, ap.z - bp.z))); |
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|
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verts[(int)a].n = nv; |
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verts[(int)b].n = nv; |
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verts[(int)c].n = nv; |
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} |
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vd.push_back (verts[(int)a]); |
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vd.push_back (verts[(int)b]); |
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vd.push_back (verts[(int)c]); |
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} |
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|
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entity_triangles *tri = new entity_triangles; |
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tri->m = m; |
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tri->set (vd); |
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ec->add (tri); |
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} |
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return e; |
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} |
