nuclear@0: #include <float.h>
nuclear@0: #include "object.h"
nuclear@0: #include "opengl.h"
nuclear@0: #include "unistate.h"
nuclear@0: #include "logger.h"
nuclear@0: 
nuclear@15: using namespace goatgfx;
nuclear@15: 
nuclear@0: static void destroy_all_rec(XFormNode *node);
nuclear@0: static void get_all_meshes_rec(XFormNode *node, std::list<Mesh*> *reslist);
nuclear@0: 
nuclear@0: DrawMode Object::draw_mode = DRAW_DEFAULT;
nuclear@0: 
nuclear@0: Object::Object()
nuclear@0: {
nuclear@0: 	mesh = 0;
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::destroy_all()
nuclear@0: {
nuclear@0: 	destroy_all_rec(this);
nuclear@0: }
nuclear@0: 
nuclear@0: static void destroy_all_rec(XFormNode *node)
nuclear@0: {
nuclear@0: 	if(!node) {
nuclear@0: 		return;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	for(int i=0; i<node->get_children_count(); i++) {
nuclear@0: 		destroy_all_rec(node->get_child(i));
nuclear@0: 	}
nuclear@0: 	delete node;
nuclear@0: }
nuclear@0: 
nuclear@0: void Object::set_mesh(Mesh *m)
nuclear@0: {
nuclear@0: 	mesh = m;
nuclear@0: }
nuclear@0: 
nuclear@0: Mesh *Object::get_mesh()
nuclear@0: {
nuclear@0: 	return mesh;
nuclear@0: }
nuclear@0: 
nuclear@0: const Mesh *Object::get_mesh() const
nuclear@0: {
nuclear@0: 	return mesh;
nuclear@0: }
nuclear@0: 
nuclear@0: std::list<Mesh*> Object::get_all_meshes()
nuclear@0: {
nuclear@0: 	std::list<Mesh*> meshes;
nuclear@0: 	get_all_meshes_rec(this, &meshes);
nuclear@0: 	return meshes;
nuclear@0: }
nuclear@0: 
nuclear@0: std::list<const Mesh*> Object::get_all_meshes() const
nuclear@0: {
nuclear@0: 	std::list<const Mesh*> meshes;
nuclear@0: 	get_all_meshes_rec((Object*)this, (std::list<Mesh*>*)&meshes);
nuclear@0: 	return meshes;
nuclear@0: }
nuclear@0: 
nuclear@0: static void get_all_meshes_rec(XFormNode *node, std::list<Mesh*> *reslist)
nuclear@0: {
nuclear@0: 	if(!node) {
nuclear@0: 		return;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	Object *obj = dynamic_cast<Object*>(node);
nuclear@0: 	if(obj) {
nuclear@0: 		Mesh *mesh = obj->get_mesh();
nuclear@0: 		if(mesh) {
nuclear@0: 			reslist->push_back(mesh);
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	for(int i=0; i<node->get_children_count(); i++) {
nuclear@0: 		get_all_meshes_rec(node->get_child(i), reslist);
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@0: AABox Object::get_aabbox() const
nuclear@0: {
nuclear@0: 	AABox box;
nuclear@0: 
nuclear@0: 	if(mesh) {
nuclear@0: 		box = mesh->get_aabbox();
nuclear@0: 	} else {
nuclear@0: 		box.min = Vector3(FLT_MAX, FLT_MAX, FLT_MAX);
nuclear@0: 		box.max = -box.min;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	int num_children = get_children_count();
nuclear@0: 	for(int i=0; i<num_children; i++) {
nuclear@0: 		const Object *obj = dynamic_cast<const Object*>(get_child(i));
nuclear@0: 		if(obj) {
nuclear@0: 			AABox child_box = obj->get_aabbox();
nuclear@0: 			box.set_union(&box, &child_box);
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 	return box;
nuclear@0: }
nuclear@0: 
nuclear@0: Sphere Object::get_bsphere() const
nuclear@0: {
nuclear@0: 	Sphere sph;
nuclear@0: 	bool valid = false;
nuclear@0: 
nuclear@0: 	if(mesh) {
nuclear@0: 		sph = mesh->get_bsphere();
nuclear@0: 		valid = true;
nuclear@0: 	} else {
nuclear@0: 		sph.radius = 0.0;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	int num_children = get_children_count();
nuclear@0: 	for(int i=0; i<num_children; i++) {
nuclear@0: 		const Object *obj = dynamic_cast<const Object*>(get_child(i));
nuclear@0: 		if(obj) {
nuclear@0: 			Sphere child_sph = obj->get_bsphere();
nuclear@0: 			if(valid) {
nuclear@0: 				sph.set_union(&sph, &child_sph);
nuclear@0: 			} else {
nuclear@0: 				sph = child_sph;
nuclear@0: 				valid = true;
nuclear@0: 			}
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	return sph;
nuclear@0: }
nuclear@0: 
nuclear@0: /*static const char *attr_name[] = {
nuclear@0: 	"attr_vertex",
nuclear@0: 	"attr_normal",
nuclear@0: 	"attr_tangent",
nuclear@0: 	"attr_texcoord",
nuclear@0: 	"attr_boneweights",
nuclear@0: 	"attr_boneidx"
nuclear@0: };*/
nuclear@0: 
nuclear@0: void Object::draw(long msec) const
nuclear@0: {
nuclear@0: 	Matrix4x4 xform;
nuclear@0: 	get_xform(msec, &xform);
nuclear@0: 
nuclear@0: 	set_world_matrix(xform);
nuclear@0: 
nuclear@0: 	if(mesh) {
nuclear@0: 		/*unsigned int prog = sdrprog;
nuclear@0: 
nuclear@0: 		if(mesh->get_bones_count() > 0) {
nuclear@0: 			prog = sdrprog_skin;
nuclear@0: 		}
nuclear@0: 
nuclear@0: 		glUseProgram(prog);
nuclear@0: 		// get all the attribute locations
nuclear@0: 		for(int i=0; i<NUM_MESH_ATTR; i++) {
nuclear@0: 			int loc = glGetAttribLocation(prog, attr_name[i]);
nuclear@0: 			if(loc != -1) {
nuclear@0: 				Mesh::set_attrib_location(i, loc);
nuclear@0: 			}
nuclear@0: 		}
nuclear@0: 
nuclear@0: 		setup_bones(msec);
nuclear@0: 
nuclear@0: 		glUseProgram(prog);*/
nuclear@0: 
nuclear@0: 		material.setup();
nuclear@0: 		setup_unistate();	// set all state uniforms
nuclear@0: 
nuclear@0: 		switch(Object::draw_mode) {
nuclear@0: 		case DRAW_WIREFRAME:
nuclear@0: 			mesh->draw_wire();
nuclear@0: 			break;
nuclear@0: 
nuclear@0: 		case DRAW_VERTICES:
nuclear@0: 			mesh->draw_vertices();
nuclear@0: 			break;
nuclear@0: 
nuclear@0: 		case DRAW_DEFAULT:
nuclear@0: 		default:
nuclear@0: 			mesh->draw();
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	int num_children = get_children_count();
nuclear@0: 	for(int i=0; i<num_children; i++) {
nuclear@0: 		const Object *obj = dynamic_cast<const Object*>(get_child(i));
nuclear@0: 		if(obj) {
nuclear@0: 			obj->draw(msec);
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@0: 
nuclear@0: bool Object::intersect(const Ray &inray, HitPoint *hit) const
nuclear@0: {
nuclear@0: 	Ray ray = inray;
nuclear@0: 	Matrix4x4 xform, inv_xform;
nuclear@0: 	get_xform(ray.time, &xform/*, &inv_xform*/);
nuclear@0: 	ray.transform(xform.inverse());	// TODO find out what's wrong with get_xform's inv_xform and use that
nuclear@0: 
nuclear@0: 	HitPoint nearest_hit;
nuclear@0: 	nearest_hit.dist = FLT_MAX;
nuclear@0: 	nearest_hit.obj = 0;
nuclear@0: 
nuclear@0: 	if(mesh) {
nuclear@0: 		if(mesh->intersect(ray, hit ? &nearest_hit : 0)) {
nuclear@0: 			if(!hit) {
nuclear@0: 				return true;
nuclear@0: 			}
nuclear@0: 
nuclear@0: 			if(Mesh::get_intersect_mode() & ISECT_FACE) {
nuclear@0: 				Triangle *face = (Triangle*)nearest_hit.obj;
nuclear@0: 				face->transform(xform);
nuclear@0: 			} else if(Mesh::get_intersect_mode() & ISECT_VERTICES) {
nuclear@0: 				Vector3 *v = (Vector3*)nearest_hit.obj;
nuclear@0: 				v->transform(xform);
nuclear@0: 			} else {
nuclear@0: 				nearest_hit.obj = this;
nuclear@0: 			}
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	int num_children = get_children_count();
nuclear@0: 	for(int i=0; i<num_children; i++) {
nuclear@0: 		const Object *obj = dynamic_cast<const Object*>(get_child(i));
nuclear@0: 
nuclear@0: 		HitPoint chit;
nuclear@0: 		if(obj && obj->intersect(inray, hit ? &chit : 0)) {
nuclear@0: 			if(!hit) {
nuclear@0: 				return true;
nuclear@0: 			}
nuclear@0: 
nuclear@0: 			if(chit.dist < nearest_hit.dist) {
nuclear@0: 				nearest_hit = chit;
nuclear@0: 			}
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	if(nearest_hit.obj) {
nuclear@0: 		if(hit) {
nuclear@0: 			*hit = nearest_hit;
nuclear@0: 		}
nuclear@0: 		return true;
nuclear@0: 	}
nuclear@0: 	return false;
nuclear@0: }
nuclear@0: 
nuclear@0: 
nuclear@0: bool Object::setup_bones(long msec) const
nuclear@0: {
nuclear@0: 	int num_bones;
nuclear@0: 	if(!mesh || !(num_bones = mesh->get_bones_count())) {
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	/*char uniname[32];
nuclear@0: 
nuclear@0: 	for(int i=0; i<num_bones; i++) {
nuclear@0: 		const XFormNode *bone = mesh->get_bone(i);
nuclear@0: 
nuclear@0: 		Matrix4x4 xform;
nuclear@0: 		bone->get_xform(msec, &xform);
nuclear@0: 
nuclear@0: 		xform = xform * bone->get_bone_matrix();
nuclear@0: 
nuclear@0: 		sprintf(uniname, "bone_xform[%d]", i);
nuclear@0: 		int loc = glGetUniformLocation(sdrprog_skin, uniname);
nuclear@0: 		if(loc == -1) {
nuclear@0: 			return false;
nuclear@0: 		}
nuclear@0: 		glUniformMatrix4fv(loc, 1, GL_TRUE, xform[0]);
nuclear@0: 	}*/
nuclear@0: 	return true;
nuclear@0: }
nuclear@0: 
nuclear@0: DrawMode Object::set_draw_mode(DrawMode mode)
nuclear@0: {
nuclear@0: 	DrawMode prev = Object::draw_mode;
nuclear@0: 	Object::draw_mode = mode;
nuclear@0: 	return prev;
nuclear@0: }