mirror of
https://github.com/J-D-K/JKSV.git
synced 2026-03-22 01:34:13 -05:00
115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
#include "ui/PopMessage.hpp"
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#include "config/config.hpp"
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#include "graphics/colors.hpp"
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#include "mathutil.hpp"
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#include "sdl.hpp"
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namespace
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{
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static inline constexpr int START_X = 624;
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static inline constexpr double START_Y = 720;
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static inline constexpr int START_WIDTH = 32;
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static inline constexpr int PERMA_HEIGHT = 48;
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}
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ui::PopMessage::PopMessage(int ticks, std::string_view message)
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: m_transition(START_X, START_Y, START_WIDTH, PERMA_HEIGHT, 0, 0, 0, 0, 4)
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, m_ticks(ticks)
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, m_message(message)
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, m_dialog(ui::DialogBox::create(START_X, START_Y - 6, START_WIDTH, PERMA_HEIGHT, ui::DialogBox::Type::Light)) {};
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ui::PopMessage::PopMessage(int ticks, std::string &message)
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: m_transition(START_X, START_Y, START_WIDTH, PERMA_HEIGHT, 0, 0, 0, 0, 4)
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, m_ticks(ticks)
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, m_message(std::move(message))
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, m_dialog(ui::DialogBox::create(START_X, START_Y - 6, START_WIDTH, PERMA_HEIGHT, ui::DialogBox::Type::Light)) {};
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void ui::PopMessage::update(double targetY)
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{
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PopMessage::update_y(targetY);
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PopMessage::update_text_offset();
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PopMessage::update_width();
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if (m_close && m_transition.in_place()) { m_finished = true; }
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else if (m_displayTimer.is_triggered()) { PopMessage::close(); }
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}
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void ui::PopMessage::render()
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{
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m_dialog->render(sdl::Texture::Null, false);
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if (!m_yMet || m_close) { return; }
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// This avoids allocating and returning another std::string.
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const int y = m_transition.get_y();
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const std::string_view message(m_message.c_str(), m_substrOffset);
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sdl::text::render(sdl::Texture::Null, m_textX, y + 5, 22, sdl::text::NO_WRAP, colors::BLACK, message);
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}
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bool ui::PopMessage::finished() const noexcept { return m_finished; }
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std::string_view ui::PopMessage::get_message() const noexcept { return m_message; }
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void ui::PopMessage::update_y(double targetY) noexcept
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{
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if (!m_close) { m_transition.set_target_y(targetY); };
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m_transition.update_xy();
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if (!m_yMet && m_transition.in_place_xy())
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{
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m_yMet = true;
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m_typeTimer.start(5);
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}
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const int y = m_transition.get_y();
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m_dialog->set_y(y - 6);
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}
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void ui::PopMessage::update_text_offset()
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{
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static constexpr int HALF_WIDTH = 640;
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const int messageLength = m_message.length();
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if (!m_yMet || m_substrOffset >= messageLength || !m_typeTimer.is_triggered()) { return; }
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// This is slightly more technical than I originally thought, but I liked the effect so.
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uint32_t codepoint{};
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const char *message = m_message.c_str();
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const uint8_t *targetPoint = reinterpret_cast<const uint8_t *>(&message[m_substrOffset]);
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const ssize_t unitCount = decode_utf8(&codepoint, targetPoint);
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if (unitCount <= 0) { return; }
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m_substrOffset += unitCount;
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const std::string_view subMessage(message, m_substrOffset);
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const int stringWidth = sdl::text::get_width(22, subMessage);
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m_textX = HALF_WIDTH - (stringWidth / 2);
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const int dialogX = m_textX - 16;
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const int dialogWidth = stringWidth + 32;
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m_transition.set_target_x(dialogX);
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m_transition.set_target_width(dialogWidth);
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if (m_substrOffset >= messageLength) { m_displayTimer.start(m_ticks); }
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}
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void ui::PopMessage::update_width() noexcept
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{
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if (!m_yMet) { return; }
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m_transition.update_width_height();
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const int x = m_transition.get_centered_x();
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const int width = m_transition.get_width();
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m_dialog->set_x(x);
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m_dialog->set_width(width);
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if (m_close && m_transition.in_place_width_height()) { m_transition.set_target_y(720); }
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}
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void ui::PopMessage::close() noexcept
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{
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m_close = true;
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m_transition.set_target_width(32);
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} |