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authorStijn Buys <ingar@osirion.org>2008-03-06 21:49:54 +0000
committerStijn Buys <ingar@osirion.org>2008-03-06 21:49:54 +0000
commitd1b9fa9ebb493674c95983fe690bffb730b1ece2 (patch)
tree1de0975318cb41835f87c0a27f76e5f7c60ca7b7 /src/render/model.cc
parentc3d56342784bd97cce666f24539db31cbd5506d9 (diff)
moving model to core
Diffstat (limited to 'src/render/model.cc')
-rw-r--r--src/render/model.cc531
1 files changed, 0 insertions, 531 deletions
diff --git a/src/render/model.cc b/src/render/model.cc
deleted file mode 100644
index ae34270..0000000
--- a/src/render/model.cc
+++ /dev/null
@@ -1,531 +0,0 @@
-/*
- render/model.h
- This file is part of the Osirion project and is distributed under
- the terms of the GNU General Public License version 2
-*/
-
-#include <iostream>
-#include <string>
-#include <fstream>
-#include <iomanip>
-#include <sstream>
-#include <vector>
-#include <list>
-
-#include "render/model.h"
-#include "render/gl.h"
-#include "filesystem/filesystem.h"
-
-namespace render
-{
-
-const float MAX_BOUNDS = 8192;
-const float delta = 10e-10;
-
-Engine::Engine(math::Vector3f const & location) :
- engine_location(location)
-{}
-
-Engine::~Engine()
-{}
-
-std::map<std::string, Model*> Model::registry;
-
-Model::Model(std::string const & name) :
- model_name(name)
-{
- model_scale = 1.0f / 1024.0f;
-
- std::string fn("maps/");
- fn.append(name);
- fn.append(".map");
- filesystem::File *f = filesystem::open(fn.c_str());
-
- if (!f) {
- return;
- }
-
- fn = f->path();
- fn.append(f->name());
- filesystem::close(f);
-
- std::ifstream ifs(fn.c_str());
- if (!ifs.is_open()) {
- con_warn << "Could not stream " << fn << "!\n";
- return;
- }
-
- // --------- the actual reading
- using math::Vector3f;
- using math::Plane3f;
-
- std::vector<Plane3f *> planes;
- unsigned int level = 0;
- char data[1024];
-
- std::string class_name;
- math::Vector3f class_origin;
- float class_angle;
-
- while (ifs) {
- ifs.getline(data, 1023);
- std::istringstream linestream(data);
- std::string firstword;
-
- if (linestream >> firstword) {
- if (firstword == "//") {
- //cout << " COMMENT!" << std::endl;
- continue;
- } else if (firstword == "{") {
- level ++;
- //cout << " LEVEL +" << level << std::endl;
- } else if (firstword == "}") {
- //cout << " LEVEL -" << level << std::endl;
- if ((level == 2) && (class_name == "worldspawn")) {
- //cout << "brush with " << planes.size() << " faces" << std::endl;
-
- // for every face
- std::vector<Vector3f *>points;
- for (std::vector<Plane3f *>::iterator face = planes.begin(); face != planes.end(); face++) {
- make_face((*face), planes);
- }
-
- // clean planes
- for (std::vector<Plane3f *>::iterator it = planes.begin(); it != planes.end(); it++) {
- delete(*it);
- }
- planes.clear();
-
- } else if ((level == 1) && (class_name == "target_engine")) {
- //con_debug << " engine at " << class_origin << "\n";
- add_engine(new Engine(class_origin * model_scale));
- }
-
- if (level == 1) {
- class_angle = 0;
- class_name.clear();
- class_origin = Vector3f(0,0,0);
- }
-
- level--;
-
- } else if (firstword == "\"classname\"") {
- class_name.clear();
- if (linestream >> class_name) {
- if (class_name.size() > 2) {
- class_name.erase(0,1);
- class_name.erase(class_name.size()-1, 1);
- //linestream >> class_name;
- //con_debug << " classname '" << class_name << "'" << std::endl;
- } else {
- class_name.clear();
- }
- } else {
- //cout << " EMPTY CLASS" << std::endl;
- }
- } else if (firstword == "\"origin\"") {
- std::string tmp;
- char c;
- while ((linestream.get(c)) && (c != '"'));
- while ((linestream.get(c)) && (c != '"'))
- tmp += c;
- std::istringstream is(tmp);
- is >> class_origin.x;
- is >> class_origin.y;
- is >> class_origin.z;
- //con_debug << " origin '" << class_origin << "'" << std::endl;
-
- } else if (firstword == "\"angle\"") {
- std::string tmp;
- char c;
- while ((linestream.get(c)) && (c != '"'));
- while ((linestream.get(c)) && (c != '"'))
- tmp += c;
- std::istringstream is(tmp);
- is >> class_angle;
- //con_debug << " angle '" << class_angle << "'" << std::endl;
- } else if (firstword == "(") {
- if ((level == 2) && (class_name == "worldspawn")) {
- //cout << " BRUSH PLANE" << std::endl;
- Vector3f p1;
- Vector3f p2;
- Vector3f p3;
- std::string tmp;
- std::string texture;
-
- linestream >> p1;
- linestream >> tmp; // )
- linestream >> tmp; // (
- linestream >> p2;
- linestream >> tmp; // )
- linestream >> tmp; // (
- linestream >> p3;
- linestream >> tmp; // )
- linestream >> texture;
-
- //cout << data << std::endl;
- //cout << "(" << p1 << ") (" << p2 << ") (" << p3 << ") " << texture << std::endl;
-
- Plane3f *plane = new Plane3f(p1, p2, p3);
- plane->texture() = texture;
- planes.push_back(plane);
- //cout << "normal " << plane->normal() << std::endl;
- } else {
- //cout << " UNKNOWN line for '" << classname << "' level " << level << std::endl;
- }
- }
- }
- }
-
- ifs.close();
-
- con_debug << " maps/" << name << ".map " << model_face.size() << " polygons\n";
-}
-
-Model::~Model()
-{
- // delete all faces
- for (std::list<Face *>::iterator fit = model_face.begin(); fit != model_face.end(); fit++) {
- delete(*fit);
- }
- model_face.clear();
-
- // delete all engines
- for (std::list<Engine *>::iterator eit = model_engine.begin(); eit != model_engine.end(); eit++) {
- delete(*eit);
- }
- model_engine.clear();
-}
-
-void Model::make_face(math::Plane3f *face, std::vector<math::Plane3f *> & planes)
-{
- using math::Vector3f;
- using math::Plane3f;
-
- // ignore caulk
- if (face->texture() == "common/caulk") {
- return;
- }
-
- // using suggestions from
- // http://www.flipcode.com/archives/Level_Editing.shtml
-
- //cout << "Face with normal " << face->normal() << endl;
- std::vector<math::Vector3f *> vl;
-
- // inital vertexes
-
- // check if the face is x-axis oriented
- if ((fabsf(face->normal().x) >= fabsf(face->normal().y)) && (fabsf(face->normal().x) >= fabsf(face->normal().z))) {
- //cout << " x oriented" << std::endl;
-
- if (face->normal().x >= 0) {
- vl.push_back(new math::Vector3f(0, -MAX_BOUNDS, -MAX_BOUNDS));
- vl.push_back(new math::Vector3f(0, -MAX_BOUNDS, MAX_BOUNDS));
- vl.push_back(new math::Vector3f(0, MAX_BOUNDS, MAX_BOUNDS));
- vl.push_back(new math::Vector3f(0, MAX_BOUNDS, -MAX_BOUNDS));
- } else {
- vl.push_back(new math::Vector3f(0, MAX_BOUNDS, -MAX_BOUNDS));
- vl.push_back(new math::Vector3f(0, MAX_BOUNDS, MAX_BOUNDS));
- vl.push_back(new math::Vector3f(0, -MAX_BOUNDS, MAX_BOUNDS));
- vl.push_back(new math::Vector3f(0, -MAX_BOUNDS, -MAX_BOUNDS));
- }
- // calculate the x coordinate of each face vertex
- for (std::vector<Vector3f *>::iterator it = vl.begin(); it != vl.end(); it++) {
- (*it)->x = (-face->d() -
- face->normal().z * (*it)->z -
- face->normal().y * (*it)->y) /
- face->normal().x;
- }
- }
-
- // check if the face is y-axis oriented
- else if ((fabsf(face->normal().y) >= fabsf(face->normal().x)) && (fabsf(face->normal().y) >= fabsf(face->normal().z))) {
- //cout << " y oriented" << std::endl;
-
- if (face->normal().y >= 0) {
- vl.push_back(new Vector3f(MAX_BOUNDS, 0, -MAX_BOUNDS));
- vl.push_back(new Vector3f(MAX_BOUNDS, 0, MAX_BOUNDS));
- vl.push_back(new Vector3f(-MAX_BOUNDS, 0, MAX_BOUNDS));
- vl.push_back(new Vector3f(-MAX_BOUNDS, 0, -MAX_BOUNDS));
- } else {
- vl.push_back(new Vector3f(-MAX_BOUNDS, 0, -MAX_BOUNDS));
- vl.push_back(new Vector3f(-MAX_BOUNDS, 0, MAX_BOUNDS));
- vl.push_back(new Vector3f(MAX_BOUNDS, 0, MAX_BOUNDS));
- vl.push_back(new Vector3f(MAX_BOUNDS, 0, -MAX_BOUNDS));
- }
-
- // calculate the x coordinate of each face vertex
- for (std::vector<Vector3f *>::iterator it = vl.begin(); it != vl.end(); it++) {
- (*it)->y = (-face->d() -
- face->normal().z * (*it)->z -
- face->normal().x * (*it)->x) /
- face->normal().y;
- }
- }
-
- // face must be z-axis oriented
- else {
- //cout << " z oriented" << std::endl;
- if (face->normal().z >= 0) {
- vl.push_back(new Vector3f(-MAX_BOUNDS, -MAX_BOUNDS, 0));
- vl.push_back(new Vector3f(-MAX_BOUNDS, MAX_BOUNDS, 0));
- vl.push_back(new Vector3f(MAX_BOUNDS, MAX_BOUNDS, 0));
- vl.push_back(new Vector3f(MAX_BOUNDS, -MAX_BOUNDS, 0));
- } else {
- vl.push_back(new Vector3f(MAX_BOUNDS, -MAX_BOUNDS, 0));
- vl.push_back(new Vector3f(MAX_BOUNDS, MAX_BOUNDS, 0));
- vl.push_back(new Vector3f(-MAX_BOUNDS, MAX_BOUNDS, 0));
- vl.push_back(new Vector3f(-MAX_BOUNDS, -MAX_BOUNDS, 0));
- }
-
- // calculate the x coordinate of each face vertex
- for (std::vector<Vector3f *>::iterator it = vl.begin(); it != vl.end(); it++) {
- (*it)->z = (-face->d() -
- face->normal().x * (*it)->x -
- face->normal().y * (*it)->y) /
- face->normal().z;
- }
- }
-
-
- // intersect the face with every plane
- for (std::vector<Plane3f *>::iterator pit = planes.begin(); pit != planes.end(); pit++) {
- Plane3f *plane = (*pit);
- if (plane == face) {
- continue;
- }
-
- Vector3f fn = crossproduct(face->point(1)-face->point(0), face->point(2)-face->point(0));
- Vector3f pn = crossproduct(plane->point(1)-plane->point(0), plane->point(2)-plane->point(0));
-
- Vector3f t = crossproduct(fn, pn);
- if ((t.x == 0) && (t.y == 0) && (t.z == 0)) {
- continue;
- }
-
- //cout << " intersecting with plane with normal " << plane->normal() << std::endl;
-
- // intersect face with plane
- for (int i=0; vl.size() - i > 0; i++) {
-
- Vector3f v(*vl.at(i));
-
-
- Vector3f next;
- if (vl.size() - i > 1) {
- //cout << " -- at " << i+1 << std::endl;
- next = *vl.at(i+1);
- } else {
- next = *vl.front();
- }
-
- Vector3f prev;
- if (i > 0) {
- //cout << " -- at " << i-1 << std::endl;
- prev = *vl.at(i-1);
- } else {
- prev = *vl.back();
- }
-
- //cout << " vertex " << i << " prev " << prev << " v " << v << " next " << next << std::endl;
- if ((v.x*plane->normal().x + v.y*plane->normal().y + v.z*plane->normal().z +plane->d()) < delta) {
-
- // find current
- std::vector<Vector3f *>::iterator vit = vl.begin();
- while ((*vit) != vl.at(i)) {
- vit++;
- }
-
- // check if prev - v intersects with plane
- if ((prev.x*plane->normal().x + prev.y*plane->normal().y + prev.z*plane->normal().z + plane->d()) > -delta) {
-
- // calculate intersection
- float t1 = -plane->normal().x * prev.x - plane->normal().y * prev.y - plane->normal().z * prev.z -plane->d();
- float t2 = (plane->normal().x * v.x - plane->normal().x * prev.x +
- plane->normal().y * v.y - plane->normal().y * prev.y +
- plane->normal().z * v.z - plane->normal().z * prev.z);
- //cout << "prev t2 " << t2 << std::endl;
- Vector3f *s = new Vector3f;
-
- if (t2 == 0) {
- *s = v;
- } else {
- for (int j = 0; j < 3; j++)
- (*s)[j] = prev [j] + t1 * (v[j] - prev[j]) / t2;
- }
-
- //cout << " added " << *s << std::endl;
- vit = vl.insert(vit,s);
- vit++;
- i++;
- }
-
- // check if next - v intersects with plane
- if ((next.x*plane->normal().x + next.y*plane->normal().y + next.z*plane->normal().z + plane->d()) > -delta) {
- // calculate intersection
-
- // calculate intersection
- float t1 = -plane->normal().x * v.x - plane->normal().y * v.y - plane->normal().z * v.z -plane->d();
- float t2 = (plane->normal().x * next.x - plane->normal().x * v.x +
- plane->normal().y * next.y - plane->normal().y * v.y +
- plane->normal().z * next.z - plane->normal().z * v.z);
- //cout << "next t2 " << t2 << std::endl;
- Vector3f *s = new Vector3f;
-
- if (t2 == 0) {
- *s = v;
- } else {
- for (int j = 0; j < 3; j++)
- (*s)[j] = v [j] + t1 * (next[j] - v[j]) / t2;
- }
-
- //cout << " added " << *s << std::endl;
- vit = vl.insert(vit,s);
- vit++;
- i++;
- }
-
- // erase
- delete *vit;
- vl.erase(vit);
- i--;
- }
-
- }
- }
-
- if (vl.size() > 2) {
-
- math::Color *color = 0;
- if (face->texture() == "colors/white") {
- color = new math::Color(1, 1, 1);
- } else if (face->texture() == "colors/grey90") {
- color = new math::Color(0.9, 0.9, 0.9);
- } else if (face->texture() == "colors/grey75") {
- color = new math::Color(0.75, 0.75, 0.75);
- } else if (face->texture() == "colors/grey50") {
- color = new math::Color(0.5, 0.5, 0.5);
- } else if (face->texture() == "colors/grey25") {
- color = new math::Color(0.25, 0.25, 0.25);
- } else if (face->texture() == "colors/black") {
- color = new math::Color(0, 0, 0);
- } else if (face->texture() == "common/entity") {
- color = 0;
- } else
- color = new math::Color(1.0f, 0.0, 1.0f);
-
- Face *mf = new Face(face->normal()*-1, color);
- if (color) delete color;
-
- for (std::vector<Vector3f *>::iterator it = vl.begin(); it != vl.end(); it++) {
- mf->add_vertex(*(*it) * model_scale);
- }
-
- //con_debug << "adding face\n";
- add_face(mf);
- } else {
- con_debug << "Unresolved face!\n";
- }
-
- for (std::vector<Vector3f *>::iterator it = vl.begin(); it != vl.end(); it++) {
- delete(*it);
- }
-
- vl.clear();
-
-}
-
-void Model::add_face(Face *face)
-{
- model_face.push_back(face);
-}
-
-void Model::add_engine(Engine *engine)
-{
- model_engine.push_back(engine);
-}
-
-void Model::draw(core::Entity const * entity, math::Vector3f const & eye)
-{
- //gl::scale(model_scale, model_scale, model_scale);
-
- // calculate a normal from eye to entity location
- math::Vector3f n = entity->location() - eye;
- n.normalize();
-
- // draw all faces
- for (std::list<Face *>::iterator fit = model_face.begin(); fit != model_face.end(); fit++) {
- // poor man's lighting
- // set the face color depending on the viewing direction
- //float d = fabsf(math::dotproduct(n, (*fit)->normal()));
-
- //if (d > 1)
- // d = 1;
- //d = 0.5f + d/2;
-
- if ((*fit)->color()) {
- render::gl::color(*(*fit)->color());
- } else {
- render::gl::color(entity->color());
- }
- (*fit)->draw();
- }
-}
-
-void Model::draw(core::EntityControlable const * entity, math::Vector3f const & eye)
-{
- // draw the model
- draw((core::Entity *) entity, eye);
-
- // draw engines
- // all engines are assumed to point to the rear
- if (model_engine.size() && entity->thrust()) {
- gl::color(1.0f,0 ,0);
- gl::begin(gl::Lines);
-
- for (std::list<Engine *>::iterator eit = model_engine.begin(); eit != model_engine.end(); eit++) {
- math::Vector3f const & v = (*eit)->location();
- gl::vertex(v);
- gl::vertex(v.x - 0.0625f*entity->thrust(), v.y, v.z);
- }
- gl::end();
- }
-}
-
-Model *Model::find(std::string const & name)
-{
- std::map<std::string, Model*>::iterator it = registry.find(name);
- if (it == registry.end())
- return 0;
- else
- return (*it).second;
-}
-
-Model *Model::get(std::string const & name)
-{
- Model *model = find(name);
- if (!model) {
- model = new Model(name);
- registry[model->name()] = model;
- }
- return model;
-}
-
-void Model::clear()
-{
- // delete all models in the registry
- for (std::map<std::string, Model*>::iterator mit = registry.begin(); mit != registry.end(); mit++) {
- delete(*mit).second;
- }
- registry.clear();
-}
-
-void Model::list()
-{
- for (std::map<std::string, Model*>::iterator mit = registry.begin(); mit != registry.end(); mit++) {
- con_print << " " << (*mit).second->model_name << " " << (*mit).second->model_face.size() << " polys\n";
- }
- con_print << registry.size() << " registered models" << std::endl;
-}
-}