Scene: Ensure classes match their header filename

Also drop some unused files.

Renamed:
- `scene/2d/navigation2d.h` -> `navigation_2d.h`
- `scene/2d/screen_button.h` -> `touch_screen_button.h`
- `scene/3d/scenario_fx.h` -> `world_environment.h`
- `scene/audio/audio_player.h` -> `audio_stream_player.h`
- `scene/resources/bit_mask.h` -> `bit_map.h`
- `scene/resources/color_ramp.h` -> `gradient.h`
- `scene/resources/shape_line_2d.h` -> `line_shape_2d.h`
- `scene/resources/scene_format_text.h` -> `resource_format_text.h`
- `scene/resources/sky_box.h` -> `sky.h`

Dropped:
- `scene/resources/bounds.h`

1 files changed, 424 insertions, 0 deletions

diff --git a/scene/2d/touch_screen_button.cpp b/scene/2d/touch_screen_button.cpp
new file mode 100644
index 0000000000..9a1a759e72
--- /dev/null
+++ b/scene/2d/touch_screen_button.cpp
@@ -0,0 +1,424 @@
+/*************************************************************************/
+/*  touch_screen_button.cpp                                              */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* 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 "touch_screen_button.h"
+
+#include "core/input_map.h"
+#include "core/os/input.h"
+#include "core/os/os.h"
+
+void TouchScreenButton::set_texture(const Ref<Texture> &p_texture) {
+
+	texture = p_texture;
+	update();
+}
+
+Ref<Texture> TouchScreenButton::get_texture() const {
+
+	return texture;
+}
+
+void TouchScreenButton::set_texture_pressed(const Ref<Texture> &p_texture_pressed) {
+
+	texture_pressed = p_texture_pressed;
+	update();
+}
+
+Ref<Texture> TouchScreenButton::get_texture_pressed() const {
+
+	return texture_pressed;
+}
+
+void TouchScreenButton::set_bitmask(const Ref<BitMap> &p_bitmask) {
+
+	bitmask = p_bitmask;
+}
+
+Ref<BitMap> TouchScreenButton::get_bitmask() const {
+
+	return bitmask;
+}
+
+void TouchScreenButton::set_shape(const Ref<Shape2D> &p_shape) {
+
+	if (shape.is_valid())
+		shape->disconnect("changed", this, "update");
+
+	shape = p_shape;
+
+	if (shape.is_valid())
+		shape->connect("changed", this, "update");
+
+	update();
+}
+
+Ref<Shape2D> TouchScreenButton::get_shape() const {
+
+	return shape;
+}
+
+void TouchScreenButton::set_shape_centered(bool p_shape_centered) {
+
+	shape_centered = p_shape_centered;
+	update();
+}
+
+bool TouchScreenButton::is_shape_visible() const {
+
+	return shape_visible;
+}
+
+void TouchScreenButton::set_shape_visible(bool p_shape_visible) {
+
+	shape_visible = p_shape_visible;
+	update();
+}
+
+bool TouchScreenButton::is_shape_centered() const {
+
+	return shape_centered;
+}
+
+void TouchScreenButton::_notification(int p_what) {
+
+	switch (p_what) {
+
+		case NOTIFICATION_DRAW: {
+
+			if (!is_inside_tree())
+				return;
+			if (!Engine::get_singleton()->is_editor_hint() && !OS::get_singleton()->has_touchscreen_ui_hint() && visibility == VISIBILITY_TOUCHSCREEN_ONLY)
+				return;
+
+			if (finger_pressed != -1) {
+
+				if (texture_pressed.is_valid())
+					draw_texture(texture_pressed, Point2());
+				else if (texture.is_valid())
+					draw_texture(texture, Point2());
+
+			} else {
+				if (texture.is_valid())
+					draw_texture(texture, Point2());
+			}
+
+			if (!shape_visible)
+				return;
+			if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_collisions_hint())
+				return;
+			if (shape.is_valid()) {
+				Color draw_col = get_tree()->get_debug_collisions_color();
+				Vector2 pos = shape_centered ? _edit_get_rect().size * 0.5f : Vector2();
+				draw_set_transform_matrix(get_canvas_transform().translated(pos));
+				shape->draw(get_canvas_item(), draw_col);
+			}
+
+		} break;
+		case NOTIFICATION_ENTER_TREE: {
+
+			if (!Engine::get_singleton()->is_editor_hint() && !OS::get_singleton()->has_touchscreen_ui_hint() && visibility == VISIBILITY_TOUCHSCREEN_ONLY)
+				return;
+			update();
+
+			if (!Engine::get_singleton()->is_editor_hint())
+				set_process_input(is_visible_in_tree());
+
+		} break;
+		case NOTIFICATION_EXIT_TREE: {
+			if (is_pressed())
+				_release(true);
+		} break;
+		case NOTIFICATION_VISIBILITY_CHANGED: {
+			if (Engine::get_singleton()->is_editor_hint())
+				break;
+			if (is_visible_in_tree()) {
+				set_process_input(true);
+			} else {
+				set_process_input(false);
+				if (is_pressed())
+					_release();
+			}
+		} break;
+		case NOTIFICATION_PAUSED: {
+			if (is_pressed())
+				_release();
+		} break;
+	}
+}
+
+bool TouchScreenButton::is_pressed() const {
+
+	return finger_pressed != -1;
+}
+
+void TouchScreenButton::set_action(const String &p_action) {
+
+	action = p_action;
+}
+
+String TouchScreenButton::get_action() const {
+
+	return action;
+}
+
+void TouchScreenButton::_input(const Ref<InputEvent> &p_event) {
+
+	if (!get_tree())
+		return;
+
+	if (p_event->get_device() != 0)
+		return;
+
+	ERR_FAIL_COND(!is_visible_in_tree());
+
+	const InputEventScreenTouch *st = Object::cast_to<InputEventScreenTouch>(*p_event);
+
+	if (passby_press) {
+
+		const InputEventScreenDrag *sd = Object::cast_to<InputEventScreenDrag>(*p_event);
+
+		if (st && !st->is_pressed() && finger_pressed == st->get_index()) {
+
+			_release();
+		}
+
+		if ((st && st->is_pressed()) || sd) {
+
+			int index = st ? st->get_index() : sd->get_index();
+			Point2 coord = st ? st->get_position() : sd->get_position();
+
+			if (finger_pressed == -1 || index == finger_pressed) {
+
+				if (_is_point_inside(coord)) {
+					if (finger_pressed == -1) {
+						_press(index);
+					}
+				} else {
+					if (finger_pressed != -1) {
+						_release();
+					}
+				}
+			}
+		}
+
+	} else {
+
+		if (st) {
+
+			if (st->is_pressed()) {
+
+				const bool can_press = finger_pressed == -1;
+				if (!can_press)
+					return; //already fingering
+
+				if (_is_point_inside(st->get_position())) {
+					_press(st->get_index());
+				}
+			} else {
+				if (st->get_index() == finger_pressed) {
+					_release();
+				}
+			}
+		}
+	}
+}
+
+bool TouchScreenButton::_is_point_inside(const Point2 &p_point) {
+
+	Point2 coord = (get_global_transform_with_canvas()).affine_inverse().xform(p_point);
+	Rect2 item_rect = _edit_get_rect();
+
+	bool touched = false;
+	bool check_rect = true;
+
+	if (shape.is_valid()) {
+
+		check_rect = false;
+		Transform2D xform = shape_centered ? Transform2D().translated(item_rect.size * 0.5f) : Transform2D();
+		touched = shape->collide(xform, unit_rect, Transform2D(0, coord + Vector2(0.5, 0.5)));
+	}
+
+	if (bitmask.is_valid()) {
+
+		check_rect = false;
+		if (!touched && Rect2(Point2(), bitmask->get_size()).has_point(coord)) {
+
+			if (bitmask->get_bit(coord))
+				touched = true;
+		}
+	}
+
+	if (!touched && check_rect) {
+		if (texture.is_valid())
+			touched = item_rect.has_point(coord);
+	}
+
+	return touched;
+}
+
+void TouchScreenButton::_press(int p_finger_pressed) {
+
+	finger_pressed = p_finger_pressed;
+
+	if (action != StringName()) {
+
+		Input::get_singleton()->action_press(action);
+		Ref<InputEventAction> iea;
+		iea.instance();
+		iea->set_action(action);
+		iea->set_pressed(true);
+		get_tree()->input_event(iea);
+	}
+
+	emit_signal("pressed");
+	update();
+}
+
+void TouchScreenButton::_release(bool p_exiting_tree) {
+
+	finger_pressed = -1;
+
+	if (action != StringName()) {
+
+		Input::get_singleton()->action_release(action);
+		if (!p_exiting_tree) {
+
+			Ref<InputEventAction> iea;
+			iea.instance();
+			iea->set_action(action);
+			iea->set_pressed(false);
+			get_tree()->input_event(iea);
+		}
+	}
+
+	if (!p_exiting_tree) {
+		emit_signal("released");
+		update();
+	}
+}
+
+Rect2 TouchScreenButton::_edit_get_rect() const {
+	if (texture.is_null())
+		return CanvasItem::_edit_get_rect();
+
+	return Rect2(Size2(), texture->get_size());
+}
+
+bool TouchScreenButton::_edit_use_rect() const {
+	return !texture.is_null();
+}
+
+Rect2 TouchScreenButton::get_anchorable_rect() const {
+	if (texture.is_null())
+		return CanvasItem::get_anchorable_rect();
+
+	return Rect2(Size2(), texture->get_size());
+}
+
+void TouchScreenButton::set_visibility_mode(VisibilityMode p_mode) {
+	visibility = p_mode;
+	update();
+}
+
+TouchScreenButton::VisibilityMode TouchScreenButton::get_visibility_mode() const {
+
+	return visibility;
+}
+
+void TouchScreenButton::set_passby_press(bool p_enable) {
+
+	passby_press = p_enable;
+}
+
+bool TouchScreenButton::is_passby_press_enabled() const {
+
+	return passby_press;
+}
+
+void TouchScreenButton::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_texture", "texture"), &TouchScreenButton::set_texture);
+	ClassDB::bind_method(D_METHOD("get_texture"), &TouchScreenButton::get_texture);
+
+	ClassDB::bind_method(D_METHOD("set_texture_pressed", "texture_pressed"), &TouchScreenButton::set_texture_pressed);
+	ClassDB::bind_method(D_METHOD("get_texture_pressed"), &TouchScreenButton::get_texture_pressed);
+
+	ClassDB::bind_method(D_METHOD("set_bitmask", "bitmask"), &TouchScreenButton::set_bitmask);
+	ClassDB::bind_method(D_METHOD("get_bitmask"), &TouchScreenButton::get_bitmask);
+
+	ClassDB::bind_method(D_METHOD("set_shape", "shape"), &TouchScreenButton::set_shape);
+	ClassDB::bind_method(D_METHOD("get_shape"), &TouchScreenButton::get_shape);
+
+	ClassDB::bind_method(D_METHOD("set_shape_centered", "bool"), &TouchScreenButton::set_shape_centered);
+	ClassDB::bind_method(D_METHOD("is_shape_centered"), &TouchScreenButton::is_shape_centered);
+
+	ClassDB::bind_method(D_METHOD("set_shape_visible", "bool"), &TouchScreenButton::set_shape_visible);
+	ClassDB::bind_method(D_METHOD("is_shape_visible"), &TouchScreenButton::is_shape_visible);
+
+	ClassDB::bind_method(D_METHOD("set_action", "action"), &TouchScreenButton::set_action);
+	ClassDB::bind_method(D_METHOD("get_action"), &TouchScreenButton::get_action);
+
+	ClassDB::bind_method(D_METHOD("set_visibility_mode", "mode"), &TouchScreenButton::set_visibility_mode);
+	ClassDB::bind_method(D_METHOD("get_visibility_mode"), &TouchScreenButton::get_visibility_mode);
+
+	ClassDB::bind_method(D_METHOD("set_passby_press", "enabled"), &TouchScreenButton::set_passby_press);
+	ClassDB::bind_method(D_METHOD("is_passby_press_enabled"), &TouchScreenButton::is_passby_press_enabled);
+
+	ClassDB::bind_method(D_METHOD("is_pressed"), &TouchScreenButton::is_pressed);
+
+	ClassDB::bind_method(D_METHOD("_input"), &TouchScreenButton::_input);
+
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "normal", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "pressed", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture_pressed", "get_texture_pressed");
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "bitmask", PROPERTY_HINT_RESOURCE_TYPE, "BitMap"), "set_bitmask", "get_bitmask");
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shape", PROPERTY_HINT_RESOURCE_TYPE, "Shape2D"), "set_shape", "get_shape");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "shape_centered"), "set_shape_centered", "is_shape_centered");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "shape_visible"), "set_shape_visible", "is_shape_visible");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "passby_press"), "set_passby_press", "is_passby_press_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING, "action"), "set_action", "get_action");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "visibility_mode", PROPERTY_HINT_ENUM, "Always,TouchScreen Only"), "set_visibility_mode", "get_visibility_mode");
+
+	ADD_SIGNAL(MethodInfo("pressed"));
+	ADD_SIGNAL(MethodInfo("released"));
+
+	BIND_ENUM_CONSTANT(VISIBILITY_ALWAYS);
+	BIND_ENUM_CONSTANT(VISIBILITY_TOUCHSCREEN_ONLY);
+}
+
+TouchScreenButton::TouchScreenButton() {
+
+	finger_pressed = -1;
+	passby_press = false;
+	visibility = VISIBILITY_ALWAYS;
+	shape_centered = true;
+	shape_visible = true;
+	unit_rect = Ref<RectangleShape2D>(memnew(RectangleShape2D));
+	unit_rect->set_extents(Vector2(0.5, 0.5));
+}