/*************************************************************************/ /* interpolated_camera.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 "interpolated_camera.h" void InterpolatedCamera::_notification(int p_what) { switch(p_what) { case NOTIFICATION_ENTER_TREE: { if (get_tree()->is_editor_hint() && enabled) set_fixed_process(false); } break; case NOTIFICATION_PROCESS: { if (!enabled) break; if (has_node(target)) { Spatial *node = get_node(target)->cast_to<Spatial>(); if (!node) break; float delta = speed*get_process_delta_time(); Transform target_xform = node->get_global_transform(); Transform local_transform = get_global_transform(); local_transform = local_transform.interpolate_with(target_xform,delta); set_global_transform(local_transform); if (node->cast_to<Camera>()) { Camera *cam = node->cast_to<Camera>(); if (cam->get_projection()==get_projection()) { float new_near = Math::lerp(get_znear(),cam->get_znear(),delta); float new_far = Math::lerp(get_zfar(),cam->get_zfar(),delta); if (cam->get_projection()==PROJECTION_ORTHOGONAL) { float size = Math::lerp(get_size(),cam->get_size(),delta); set_orthogonal(size,new_near,new_far); } else { float fov = Math::lerp(get_fov(),cam->get_fov(),delta); set_perspective(fov,new_near,new_far); } } } } } break; } } void InterpolatedCamera::_set_target(const Object *p_target) { ERR_FAIL_NULL(p_target); set_target(p_target->cast_to<Spatial>()); } void InterpolatedCamera::set_target(const Spatial *p_target) { ERR_FAIL_NULL(p_target); target=get_path_to(p_target); } void InterpolatedCamera::set_target_path(const NodePath& p_path){ target=p_path; } NodePath InterpolatedCamera::get_target_path() const{ return target; } void InterpolatedCamera::set_interpolation_enabled(bool p_enable) { if (enabled==p_enable) return; enabled=p_enable; if (p_enable) { if (is_inside_tree() && get_tree()->is_editor_hint()) return; set_process(true); } else set_process(false); } bool InterpolatedCamera::is_interpolation_enabled() const { return enabled; } void InterpolatedCamera::set_speed(real_t p_speed) { speed=p_speed; } real_t InterpolatedCamera::get_speed() const { return speed; } void InterpolatedCamera::_bind_methods() { ObjectTypeDB::bind_method(_MD("set_target_path","target_path"),&InterpolatedCamera::set_target_path); ObjectTypeDB::bind_method(_MD("get_target_path"),&InterpolatedCamera::get_target_path); ObjectTypeDB::bind_method(_MD("set_target","target:Camera"),&InterpolatedCamera::_set_target); ObjectTypeDB::bind_method(_MD("set_speed","speed"),&InterpolatedCamera::set_speed); ObjectTypeDB::bind_method(_MD("get_speed"),&InterpolatedCamera::get_speed); ObjectTypeDB::bind_method(_MD("set_interpolation_enabled","target_path"),&InterpolatedCamera::set_interpolation_enabled); ObjectTypeDB::bind_method(_MD("is_interpolation_enabled"),&InterpolatedCamera::is_interpolation_enabled); ADD_PROPERTY( PropertyInfo(Variant::NODE_PATH,"target"), _SCS("set_target_path"), _SCS("get_target_path") ); ADD_PROPERTY( PropertyInfo(Variant::REAL,"speed"), _SCS("set_speed"), _SCS("get_speed") ); ADD_PROPERTY( PropertyInfo(Variant::BOOL,"enabled"), _SCS("set_interpolation_enabled"), _SCS("is_interpolation_enabled") ); } InterpolatedCamera::InterpolatedCamera() { enabled=false; speed=1; }