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- // SuperTux
- // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
- // 2018 Ingo Ruhnke <grumbel@gmail.com>
- //
- // This program is free software: you can redistribute it and/or modify
- // it under the terms of the GNU General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // This program is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- //
- // You should have received a copy of the GNU General Public License
- // along with this program. If not, see <http://www.gnu.org/licenses/>.
- #include "object/textscroller.hpp"
- #include <optional>
- #include <sexp/value.hpp>
- #include "control/input_manager.hpp"
- #include "editor/editor.hpp"
- #include "supertux/globals.hpp"
- #include "supertux/fadetoblack.hpp"
- #include "supertux/info_box_line.hpp"
- #include "supertux/screen_manager.hpp"
- #include "supertux/sector.hpp"
- #include "util/log.hpp"
- #include "util/reader.hpp"
- #include "util/reader_collection.hpp"
- #include "util/reader_document.hpp"
- #include "util/reader_mapping.hpp"
- #include "video/drawing_context.hpp"
- #include "video/video_system.hpp"
- #include "video/viewport.hpp"
- namespace {
- const float LEFT_BORDER = 0;
- const float DEFAULT_SPEED = 60;
- const float SCROLL_JUMP = 60;
- } // namespace
- TextScroller::TextScroller(const ReaderMapping& mapping) :
- controller(&InputManager::current()->get_controller()),
- m_filename(),
- m_finish_script(),
- m_lines(),
- m_scroll(),
- m_default_speed(DEFAULT_SPEED),
- m_x_offset(),
- m_controllable(true),
- m_finished(),
- m_fading(),
- m_x_anchor(XAnchor::SCROLLER_ANCHOR_CENTER),
- m_text_align(TextAlign::SCROLLER_ALIGN_CENTER)
- {
- mapping.get("file", m_filename);
- if (!Editor::is_active())
- {
- if (m_filename.empty())
- throw std::runtime_error("Cannot load text scroller: No file specified!");
- parse_file(m_filename);
- }
- mapping.get("finish-script", m_finish_script, "");
- mapping.get("speed", m_default_speed);
- mapping.get("x-offset", m_x_offset);
- mapping.get("controllable", m_controllable, true);
- std::string x_anchor_str;
- if (mapping.get("x-anchor", x_anchor_str))
- {
- if (x_anchor_str == "left")
- m_x_anchor = XAnchor::SCROLLER_ANCHOR_LEFT;
- else if (x_anchor_str == "right")
- m_x_anchor = XAnchor::SCROLLER_ANCHOR_RIGHT;
- else
- m_x_anchor = XAnchor::SCROLLER_ANCHOR_CENTER;
- }
- std::string text_align_str;
- if (mapping.get("text-align", text_align_str))
- {
- if (text_align_str == "left")
- m_text_align = TextAlign::SCROLLER_ALIGN_LEFT;
- else if (text_align_str == "right")
- m_text_align = TextAlign::SCROLLER_ALIGN_RIGHT;
- else
- m_text_align = TextAlign::SCROLLER_ALIGN_CENTER;
- }
- }
- TextScroller::TextScroller(const ReaderObject& root) :
- controller(&InputManager::current()->get_controller()),
- m_filename(),
- m_finish_script(),
- m_lines(),
- m_scroll(),
- m_default_speed(DEFAULT_SPEED),
- m_x_offset(),
- m_controllable(true),
- m_finished(),
- m_fading(),
- m_x_anchor(XAnchor::SCROLLER_ANCHOR_CENTER),
- m_text_align(TextAlign::SCROLLER_ALIGN_CENTER)
- {
- parse_root(root);
- }
- void
- TextScroller::parse_file(const std::string& filename)
- {
- register_translation_directory(filename);
- auto doc = ReaderDocument::from_file(filename);
- auto root = doc.get_root();
- parse_root(root);
- }
- void
- TextScroller::parse_root(const ReaderObject& root)
- {
- if (root.get_name() != "supertux-text")
- {
- throw std::runtime_error("File isn't a supertux-text file");
- }
- else
- {
- auto mapping = root.get_mapping();
- int version = 1;
- mapping.get("version", version);
- if (version == 1)
- {
- log_info << "[" << mapping.get_doc().get_filename() << "] Text uses old format: version 1" << std::endl;
- std::string text;
- if (!mapping.get("text", text)) {
- throw std::runtime_error("File doesn't contain a text field");
- }
- // Split text string lines into a vector
- m_lines = InfoBoxLine::split(text, static_cast<float>(SCREEN_WIDTH) - 2.0f * LEFT_BORDER);
- }
- else if (version == 2)
- {
- std::optional<ReaderCollection> content_collection;
- if (!mapping.get("content", content_collection)) {
- throw std::runtime_error("File doesn't contain content");
- } else {
- parse_content(*content_collection);
- }
- }
- }
- }
- void
- TextScroller::parse_content(const ReaderCollection& collection)
- {
- for (const auto& item : collection.get_objects())
- {
- if (item.get_name() == "image")
- {
- std::string image_file = item.get_sexp().as_array()[1].as_string();
- m_lines.emplace_back(new InfoBoxLine('!', image_file));
- }
- else if (item.get_name() == "person")
- {
- bool simple;
- std::string name, info, image_file;
- item.get_mapping().get("simple", simple, false);
- if (simple) {
- if (!item.get_mapping().get("name", name) || !item.get_mapping().get("info", info)) {
- throw std::runtime_error("Simple entry requires both name and info specified");
- }
- if (item.get_mapping().get("image", image_file)) {
- log_warning << "[" << collection.get_doc().get_filename() << "] Simple person entry shouldn't specify images" << std::endl;
- }
- m_lines.emplace_back(new InfoBoxLine(' ', name + " (" + info + ")")); // NOLINT
- } else {
- if (item.get_mapping().get("name", name)) {
- m_lines.emplace_back(new InfoBoxLine('\t', name));
- }
- if (item.get_mapping().get("image", image_file)) {
- m_lines.emplace_back(new InfoBoxLine('!', image_file));
- }
- if (item.get_mapping().get("info", info)) {
- m_lines.emplace_back(new InfoBoxLine(' ', info));
- }
- }
- }
- else if (item.get_name() == "blank")
- {
- // Empty line
- m_lines.emplace_back(new InfoBoxLine('\t', ""));
- }
- else if (item.get_name() == "text")
- {
- std::string type, string;
- if (!item.get_mapping().get("type", type)) {
- type = "normal";
- }
- if (!item.get_mapping().get("string", string)) {
- throw std::runtime_error("Text entry requires a string");
- }
- if (type == "normal")
- m_lines.emplace_back(new InfoBoxLine('\t', string));
- else if (type == "normal-left")
- m_lines.emplace_back(new InfoBoxLine('#', string));
- else if (type == "small")
- m_lines.emplace_back(new InfoBoxLine(' ', string));
- else if (type == "heading")
- m_lines.emplace_back(new InfoBoxLine('-', string));
- else if (type == "reference")
- m_lines.emplace_back(new InfoBoxLine('*', string));
- else {
- log_warning << "[" << item.get_doc().get_filename() << "] Unknown text type '" << type << "'" << std::endl;
- m_lines.emplace_back(new InfoBoxLine('\t', string));
- }
- }
- else
- {
- log_warning << "[" << item.get_doc().get_filename() << "] Unknown token '" << item.get_name() << "'" << std::endl;
- }
- }
- }
- void
- TextScroller::draw(DrawingContext& context)
- {
- context.push_transform();
- context.set_translation(Vector(0, 0));
- context.transform().scale = 1.f;
- const float ctx_w = context.get_width();
- const float ctx_h = context.get_height();
- float y = floorf(ctx_h - m_scroll);
- { // draw text
- for (const auto& line : m_lines)
- {
- if (y + line->get_height() >= 0 && ctx_h - y >= 0) {
- line->draw(context, Rectf(LEFT_BORDER, y, ctx_w * (m_x_anchor == XAnchor::SCROLLER_ANCHOR_LEFT ? 0.f :
- m_x_anchor == XAnchor::SCROLLER_ANCHOR_RIGHT ? 2.f : 1.f) + m_x_offset, y), LAYER_GUI,
- (m_text_align == TextAlign::SCROLLER_ALIGN_LEFT ? line->LineAlignment::LEFT :
- m_text_align == TextAlign::SCROLLER_ALIGN_RIGHT ? line->LineAlignment::RIGHT :
- line->LineAlignment::CENTER));
- }
- y += floorf(line->get_height());
- }
- }
- context.pop_transform();
- // close when done
- if (y < 0)
- {
- m_finished = true;
- set_default_speed(0.f);
- }
- }
- void
- TextScroller::update(float dt_sec)
- {
- float speed = m_default_speed;
- if (controller && m_controllable) {
- // allow changing speed with up and down keys
- if (controller->hold(Control::UP)) {
- speed = -m_default_speed * 5;
- } else if (controller->hold(Control::DOWN)) {
- speed = m_default_speed * 5;
- }
- // allow jumping ahead with certain keys
- if (controller->pressed_any(Control::JUMP, Control::ACTION, Control::MENU_SELECT) &&
- !(controller->pressed(Control::UP))) { // prevent skipping if jump with up is enabled
- scroll(SCROLL_JUMP);
- }
- // use start or escape keys to exit
- if (controller->pressed_any(Control::START, Control::ESCAPE) &&
- !m_fading && m_finish_script.empty()) {
- m_fading = true;
- ScreenManager::current()->pop_screen(std::make_unique<FadeToBlack>(FadeToBlack::FADEOUT, 0.5f));
- return;
- }
- }
- m_scroll += speed * dt_sec;
- if (m_scroll < 0)
- m_scroll = 0;
- if (!m_finish_script.empty())
- {
- Sector::get().run_script(m_finish_script, "finishscript");
- }
- else
- {
- // close when done
- if (m_finished && !m_fading)
- {
- m_fading = true;
- ScreenManager::current()->pop_screen(std::unique_ptr<ScreenFade>(new FadeToBlack(FadeToBlack::FADEOUT, 0.25f)));
- }
- }
- }
- void
- TextScroller::set_default_speed(float default_speed)
- {
- m_default_speed = default_speed;
- }
- void
- TextScroller::scroll(float offset)
- {
- m_scroll += offset;
- if (m_scroll < 0.0f)
- {
- m_scroll = 0.0f;
- }
- }
- ObjectSettings
- TextScroller::get_settings()
- {
- ObjectSettings result = GameObject::get_settings();
- result.add_file(_("File"), &m_filename, "file");
- result.add_script(_("Finish Script"), &m_finish_script, "finish-script");
- result.add_float(_("Speed"), &m_default_speed, "speed", DEFAULT_SPEED);
- result.add_float(_("X-offset"), &m_x_offset, "x-offset");
- result.add_bool(_("Controllable"), &m_controllable, "controllable", true);
- result.add_enum(_("Anchor"), reinterpret_cast<int*>(&m_x_anchor),
- { _("Left"), _("Center"), _("Right") },
- { "left", "center", "right" },
- static_cast<int>(XAnchor::SCROLLER_ANCHOR_CENTER), "x-anchor");
- result.add_enum(_("Text Alignment"), reinterpret_cast<int*>(&m_text_align),
- { _("Left"), _("Center"), _("Right") },
- { "left", "center", "right" },
- static_cast<int>(TextAlign::SCROLLER_ALIGN_CENTER), "text-align");
- result.add_remove();
- return result;
- }
- /* EOF */
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