diff options
Diffstat (limited to 'scene/3d/path.cpp')
| -rw-r--r-- | scene/3d/path.cpp | 388 |
1 files changed, 388 insertions, 0 deletions
diff --git a/scene/3d/path.cpp b/scene/3d/path.cpp new file mode 100644 index 0000000000..bc5cb1c4a2 --- /dev/null +++ b/scene/3d/path.cpp @@ -0,0 +1,388 @@ +/*************************************************************************/ +/* path.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* http://www.godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ +#include "path.h"
+#include "scene/scene_string_names.h"
+
+void Path::_notification(int p_what) {
+#if 0
+ if (p_what==NOTIFICATION_DRAW && curve.is_valid() && is_inside_scene() && get_scene()->is_editor_hint()) {
+ //draw the curve!!
+
+ for(int i=0;i<curve->get_point_count();i++) {
+
+ Vector2 prev_p=curve->get_point_pos(i);
+
+ for(int j=1;j<=8;j++) {
+
+ real_t frac = j/8.0;
+ Vector2 p = curve->interpolate(i,frac);
+ draw_line(prev_p,p,Color(0.5,0.6,1.0,0.7),2);
+ prev_p=p;
+ }
+ }
+ }
+#endif
+}
+
+void Path::_curve_changed() {
+
+
+ if (is_inside_scene() && get_scene()->is_editor_hint())
+ update_gizmo();
+}
+
+
+void Path::set_curve(const Ref<Curve3D>& p_curve) {
+
+ if (curve.is_valid()) {
+ curve->disconnect("changed",this,"_curve_changed");
+ }
+
+ curve=p_curve;
+
+ if (curve.is_valid()) {
+ curve->connect("changed",this,"_curve_changed");
+ }
+ _curve_changed();
+
+}
+
+Ref<Curve3D> Path::get_curve() const{
+
+ return curve;
+}
+
+void Path::_bind_methods() {
+
+ ObjectTypeDB::bind_method(_MD("set_curve","curve:Curve3D"),&Path::set_curve);
+ ObjectTypeDB::bind_method(_MD("get_curve:Curve3D","curve"),&Path::get_curve);
+ ObjectTypeDB::bind_method(_MD("_curve_changed"),&Path::_curve_changed);
+
+ ADD_PROPERTY( PropertyInfo( Variant::OBJECT, "curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve3D"), _SCS("set_curve"),_SCS("get_curve"));
+}
+
+Path::Path() {
+
+ set_curve(Ref<Curve3D>( memnew( Curve3D ))); //create one by default
+}
+
+
+//////////////
+
+
+void PathFollow::_update_transform() {
+
+
+ if (!path)
+ return;
+
+ Ref<Curve3D> c =path->get_curve();
+ if (!c.is_valid())
+ return;
+
+
+ float o = offset;
+ if (loop)
+ o=Math::fposmod(o,c->get_baked_length());
+
+ Vector3 pos = c->interpolate_baked(o,cubic);
+ Transform t=get_transform();
+
+
+ if (rotation_mode!=ROTATION_NONE) {
+
+ Vector3 n = (c->interpolate_baked(o+lookahead,cubic)-pos).normalized();
+
+ if (rotation_mode==ROTATION_Y) {
+
+ n.y=0;
+ n.normalize();
+ }
+
+ if (n.length()<CMP_EPSILON) {//nothing, use previous
+ n=-t.get_basis().get_axis(2).normalized();
+ }
+
+
+ Vector3 up = Vector3(0,1,0);
+
+ if (rotation_mode==ROTATION_XYZ) {
+
+ float tilt = c->interpolate_baked_tilt(o);
+ if (tilt!=0) {
+
+ Matrix3 rot(-n,tilt); //remember.. lookat will be znegative.. znegative!! we abide by opengl clan.
+ up=rot.xform(up);
+ }
+ }
+
+ t.set_look_at(pos,pos+n,up);
+
+ } else {
+
+ t.origin=pos;
+ }
+
+ t.origin+=t.basis.get_axis(0)*h_offset + t.basis.get_axis(1)*v_offset;
+ set_transform(t);
+
+}
+
+void PathFollow::_notification(int p_what) {
+
+
+ switch(p_what) {
+
+ case NOTIFICATION_ENTER_SCENE: {
+
+ Node *parent=get_parent();
+ if (parent) {
+
+ path=parent->cast_to<Path>();
+ if (path) {
+ _update_transform();
+ }
+ }
+
+ } break;
+ case NOTIFICATION_EXIT_SCENE: {
+
+
+ path=NULL;
+ } break;
+ }
+
+}
+
+void PathFollow::set_cubic_interpolation(bool p_enable) {
+
+ cubic=p_enable;
+}
+
+bool PathFollow::get_cubic_interpolation() const {
+
+ return cubic;
+}
+
+
+bool PathFollow::_set(const StringName& p_name, const Variant& p_value) {
+
+ if (p_name==SceneStringNames::get_singleton()->offset) {
+ set_offset(p_value);
+ } else if (p_name==SceneStringNames::get_singleton()->unit_offset) {
+ set_unit_offset(p_value);
+ } else if (p_name==SceneStringNames::get_singleton()->rotation_mode) {
+ set_rotation_mode(RotationMode(p_value.operator int()));
+ } else if (p_name==SceneStringNames::get_singleton()->v_offset) {
+ set_v_offset(p_value);
+ } else if (p_name==SceneStringNames::get_singleton()->h_offset) {
+ set_h_offset(p_value);
+ } else if (String(p_name)=="cubic_interp") {
+ set_cubic_interpolation(p_value);
+ } else if (String(p_name)=="loop") {
+ set_loop(p_value);
+ } else if (String(p_name)=="lookahead") {
+ set_lookahead(p_value);
+ } else
+ return false;
+
+ return true;
+}
+
+bool PathFollow::_get(const StringName& p_name,Variant &r_ret) const{
+
+ if (p_name==SceneStringNames::get_singleton()->offset) {
+ r_ret=get_offset();
+ } else if (p_name==SceneStringNames::get_singleton()->unit_offset) {
+ r_ret=get_unit_offset();
+ } else if (p_name==SceneStringNames::get_singleton()->rotation_mode) {
+ r_ret=get_rotation_mode();
+ } else if (p_name==SceneStringNames::get_singleton()->v_offset) {
+ r_ret=get_v_offset();
+ } else if (p_name==SceneStringNames::get_singleton()->h_offset) {
+ r_ret=get_h_offset();
+ } else if (String(p_name)=="cubic_interp") {
+ r_ret=cubic;
+ } else if (String(p_name)=="loop") {
+ r_ret=loop;
+ } else if (String(p_name)=="lookahead") {
+ r_ret=lookahead;
+ } else
+ return false;
+
+ return true;
+
+}
+void PathFollow::_get_property_list( List<PropertyInfo> *p_list) const{
+
+ float max=10000;
+ if (path && path->get_curve().is_valid())
+ max=path->get_curve()->get_baked_length();
+ p_list->push_back( PropertyInfo( Variant::REAL, "offset", PROPERTY_HINT_RANGE,"0,"+rtos(max)+",0.01"));
+ p_list->push_back( PropertyInfo( Variant::REAL, "unit_offset", PROPERTY_HINT_RANGE,"0,1,0.0001",PROPERTY_USAGE_EDITOR));
+ p_list->push_back( PropertyInfo( Variant::REAL, "h_offset") );
+ p_list->push_back( PropertyInfo( Variant::REAL, "v_offset") );
+ p_list->push_back( PropertyInfo( Variant::INT, "rotation_mode", PROPERTY_HINT_ENUM,"None,Y,XY,XYZ"));
+ p_list->push_back( PropertyInfo( Variant::BOOL, "cubic_interp"));
+ p_list->push_back( PropertyInfo( Variant::BOOL, "loop"));
+ p_list->push_back( PropertyInfo( Variant::REAL, "lookahead",PROPERTY_HINT_RANGE,"0.001,1024.0,0.001"));
+}
+
+
+void PathFollow::_bind_methods() {
+
+ ObjectTypeDB::bind_method(_MD("set_offset","offset"),&PathFollow::set_offset);
+ ObjectTypeDB::bind_method(_MD("get_offset"),&PathFollow::get_offset);
+
+ ObjectTypeDB::bind_method(_MD("set_h_offset","h_offset"),&PathFollow::set_h_offset);
+ ObjectTypeDB::bind_method(_MD("get_h_offset"),&PathFollow::get_h_offset);
+
+ ObjectTypeDB::bind_method(_MD("set_v_offset","v_offset"),&PathFollow::set_v_offset);
+ ObjectTypeDB::bind_method(_MD("get_v_offset"),&PathFollow::get_v_offset);
+
+ ObjectTypeDB::bind_method(_MD("set_unit_offset","unit_offset"),&PathFollow::set_unit_offset);
+ ObjectTypeDB::bind_method(_MD("get_unit_offset"),&PathFollow::get_unit_offset);
+
+ ObjectTypeDB::bind_method(_MD("set_rotation_mode","rotation_mode"),&PathFollow::set_rotation_mode);
+ ObjectTypeDB::bind_method(_MD("get_rotation_mode"),&PathFollow::get_rotation_mode);
+
+ ObjectTypeDB::bind_method(_MD("set_cubic_interpolation","enable"),&PathFollow::set_cubic_interpolation);
+ ObjectTypeDB::bind_method(_MD("get_cubic_interpolation"),&PathFollow::get_cubic_interpolation);
+
+ ObjectTypeDB::bind_method(_MD("set_loop","loop"),&PathFollow::set_loop);
+ ObjectTypeDB::bind_method(_MD("has_loop"),&PathFollow::has_loop);
+
+ BIND_CONSTANT( ROTATION_NONE );
+ BIND_CONSTANT( ROTATION_Y );
+ BIND_CONSTANT( ROTATION_XY );
+ BIND_CONSTANT( ROTATION_XYZ );
+
+}
+
+void PathFollow::set_offset(float p_offset) {
+
+ offset=p_offset;
+ if (path)
+ _update_transform();
+ _change_notify("offset");
+ _change_notify("unit_offset");
+
+}
+
+void PathFollow::set_h_offset(float p_h_offset) {
+
+ h_offset=p_h_offset;
+ if (path)
+ _update_transform();
+
+}
+
+float PathFollow::get_h_offset() const {
+
+ return h_offset;
+}
+
+void PathFollow::set_v_offset(float p_v_offset) {
+
+ v_offset=p_v_offset;
+ if (path)
+ _update_transform();
+
+}
+
+float PathFollow::get_v_offset() const {
+
+ return v_offset;
+}
+
+
+float PathFollow::get_offset() const{
+
+ return offset;
+}
+
+void PathFollow::set_unit_offset(float p_unit_offset) {
+
+ if (path && path->get_curve().is_valid() && path->get_curve()->get_baked_length())
+ set_offset(p_unit_offset*path->get_curve()->get_baked_length());
+
+}
+
+float PathFollow::get_unit_offset() const{
+
+ if (path && path->get_curve().is_valid() && path->get_curve()->get_baked_length())
+ return get_offset()/path->get_curve()->get_baked_length();
+ else
+ return 0;
+}
+
+void PathFollow::set_lookahead(float p_lookahead) {
+
+ lookahead=p_lookahead;
+
+}
+
+float PathFollow::get_lookahead() const{
+
+ return lookahead;
+}
+
+void PathFollow::set_rotation_mode(RotationMode p_rotation_mode) {
+
+ rotation_mode=p_rotation_mode;
+ _update_transform();
+}
+
+PathFollow::RotationMode PathFollow::get_rotation_mode() const {
+
+ return rotation_mode;
+}
+
+void PathFollow::set_loop(bool p_loop) {
+
+ loop=p_loop;
+}
+
+bool PathFollow::has_loop() const{
+
+ return loop;
+}
+
+
+PathFollow::PathFollow() {
+
+ offset=0;
+ h_offset=0;
+ v_offset=0;
+ path=NULL;
+ rotation_mode=ROTATION_XYZ;
+ cubic=true;
+ loop=true;
+ lookahead=0.1;
+}
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