138 lines
5.5 KiB
C++
138 lines
5.5 KiB
C++
/*************************************************************************/
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/* interpolated_camera.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "interpolated_camera.h"
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#include "core/engine.h"
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void InterpolatedCamera::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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if (Engine::get_singleton()->is_editor_hint() && enabled)
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set_process_internal(false);
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} break;
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case NOTIFICATION_INTERNAL_PROCESS: {
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if (!enabled)
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break;
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if (has_node(target)) {
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Spatial *node = Object::cast_to<Spatial>(get_node(target));
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if (!node)
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break;
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float delta = speed * get_process_delta_time();
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Transform target_xform = node->get_global_transform();
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Transform local_transform = get_global_transform();
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local_transform = local_transform.interpolate_with(target_xform, delta);
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set_global_transform(local_transform);
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Camera *cam = Object::cast_to<Camera>(node);
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if (cam) {
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if (cam->get_projection() == get_projection()) {
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float new_near = Math::lerp(get_znear(), cam->get_znear(), delta);
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float new_far = Math::lerp(get_zfar(), cam->get_zfar(), delta);
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if (cam->get_projection() == PROJECTION_ORTHOGONAL) {
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float size = Math::lerp(get_size(), cam->get_size(), delta);
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set_orthogonal(size, new_near, new_far);
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} else {
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float fov = Math::lerp(get_fov(), cam->get_fov(), delta);
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set_perspective(fov, new_near, new_far);
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}
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}
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}
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}
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} break;
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}
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}
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void InterpolatedCamera::_set_target(const Object *p_target) {
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ERR_FAIL_NULL(p_target);
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set_target(Object::cast_to<Spatial>(p_target));
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}
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void InterpolatedCamera::set_target(const Spatial *p_target) {
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ERR_FAIL_NULL(p_target);
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target = get_path_to(p_target);
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}
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void InterpolatedCamera::set_target_path(const NodePath &p_path) {
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target = p_path;
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}
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NodePath InterpolatedCamera::get_target_path() const {
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return target;
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}
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void InterpolatedCamera::set_interpolation_enabled(bool p_enable) {
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if (enabled == p_enable)
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return;
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enabled = p_enable;
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if (p_enable) {
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if (is_inside_tree() && Engine::get_singleton()->is_editor_hint())
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return;
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set_process_internal(true);
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} else
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set_process_internal(false);
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}
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bool InterpolatedCamera::is_interpolation_enabled() const {
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return enabled;
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}
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void InterpolatedCamera::set_speed(real_t p_speed) {
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speed = p_speed;
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}
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real_t InterpolatedCamera::get_speed() const {
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return speed;
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}
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void InterpolatedCamera::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_target_path", "target_path"), &InterpolatedCamera::set_target_path);
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ClassDB::bind_method(D_METHOD("get_target_path"), &InterpolatedCamera::get_target_path);
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ClassDB::bind_method(D_METHOD("set_target", "target"), &InterpolatedCamera::_set_target);
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ClassDB::bind_method(D_METHOD("set_speed", "speed"), &InterpolatedCamera::set_speed);
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ClassDB::bind_method(D_METHOD("get_speed"), &InterpolatedCamera::get_speed);
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ClassDB::bind_method(D_METHOD("set_interpolation_enabled", "target_path"), &InterpolatedCamera::set_interpolation_enabled);
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ClassDB::bind_method(D_METHOD("is_interpolation_enabled"), &InterpolatedCamera::is_interpolation_enabled);
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ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "target"), "set_target_path", "get_target_path");
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ADD_PROPERTY(PropertyInfo(Variant::REAL, "speed"), "set_speed", "get_speed");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "enabled"), "set_interpolation_enabled", "is_interpolation_enabled");
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}
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InterpolatedCamera::InterpolatedCamera() {
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enabled = false;
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speed = 1;
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}
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