/**
* @brief Shows a new group of 3 lines in the dialog box, if any.
*/
void DialogBox::show_more_lines() {
if (!has_more_lines()) {
show_next_dialog();
return;
}
// hide the action icon and change the sword icon
KeysEffect& keys_effect = game.get_keys_effect();
keys_effect.set_action_key_effect(KeysEffect::ACTION_KEY_NONE);
if (skip_mode != Dialog::SKIP_NONE) {
keys_effect.set_sword_key_effect(KeysEffect::SWORD_KEY_SKIP);
keys_effect.set_action_key_effect(KeysEffect::ACTION_KEY_NEXT);
}
else {
keys_effect.set_sword_key_effect(KeysEffect::SWORD_KEY_HIDDEN);
}
// hide the bottom arrow
end_lines_sprite.stop_animation();
// prepare the lines
int text_x = box_dst_position.get_x() + ((icon_number == -1) ? 16 : 48);
int text_y = box_dst_position.get_y() - 1;
for (int i = 0; i < nb_visible_lines; i++) {
text_y += 13;
line_surfaces[i]->set_x(text_x);
line_surfaces[i]->set_y(text_y);
line_surfaces[i]->set_text("");
if (has_more_lines()) {
lines[i] = *line_it;
line_it++;
}
else {
lines[i] = "";
}
}
if (dialog.is_question() && !has_more_lines()) {
text_x += 24;
line_surfaces[nb_visible_lines - 2]->set_x(text_x);
line_surfaces[nb_visible_lines - 1]->set_x(text_x);
}
// initialize the lines
this->line_index = 0;
this->char_index = 0;
this->next_char_date = this->next_sound_date = System::now();
}
/**
* \brief Shows a new group of 3 lines (if possible) in the built-in
* dialog box.
*/
void DialogBoxSystem::show_more_lines() {
// This function is only called in the built-in case.
Debug::check_assertion(built_in, "This dialog box is not the built-in one");
if (!has_more_lines()) {
ScopedLuaRef status_ref;
if (is_question) {
// Send the answer to the callback.
LuaContext& lua_context = game.get_lua_context();
lua_pushboolean(lua_context.get_internal_state(), selected_first_answer);
status_ref = lua_context.create_ref();
}
close(status_ref);
return;
}
KeysEffect& keys_effect = game.get_keys_effect();
keys_effect.set_action_key_effect(KeysEffect::ACTION_KEY_NEXT);
// Prepare the 3 lines.
int text_x = text_position.x;
int text_y = text_position.y;
for (int i = 0; i < nb_visible_lines; i++) {
text_y += 16;
line_surfaces[i]->set_x(text_x);
line_surfaces[i]->set_y(text_y);
line_surfaces[i]->set_text_color(Color::white);
if (has_more_lines()) {
line_surfaces[i]->set_text(*remaining_lines.begin());
remaining_lines.pop_front();
}
else {
line_surfaces[i]->set_text("");
}
}
if (built_in && is_question && !has_more_lines()) {
// If the dialog is a question, we assume that the last group of 3 lines
// are the question and the two possible answers.
// Remember that this is only the case of the built-in dialog box:
// if the user needs something more elaborate, he should make his own
// dialog box in Lua.
this->selected_first_answer = true;
line_surfaces[nb_visible_lines - 2]->set_text_color(Color::yellow);
}
}
/**
* \brief This function is called by the game when a command is pressed
* while a dialog is active.
*
* Nothing happens if the dialog is handled in Lua.
*
* \param command The command pressed.
* \return \c true if the command was handled (that is, if the dialog box
* is active and is the built-in one).
*/
bool DialogBoxSystem::notify_command_pressed(GameCommand command) {
if (!is_enabled()) {
return false;
}
if (!built_in) {
// The dialog box is handled by a Lua script.
return false;
}
if (command == GameCommand::ACTION) {
show_more_lines();
}
else if (command == GameCommand::UP || command == GameCommand::DOWN) {
if (is_question && !has_more_lines()) {
// Switch the selected answer.
selected_first_answer = !selected_first_answer;
int selected_line_index = selected_first_answer ? 1 : 2;
for (int i = 0; i < nb_visible_lines; i++) {
line_surfaces[i]->set_text_color(Color::white);
}
line_surfaces[selected_line_index]->set_text_color(Color::yellow);
}
}
return true;
}
/**
* @brief Updates the dialog box.
*
* This function is called repeatedly by the game
* while the dialog box exists.
*/
void DialogBox::update() {
if (!is_enabled()) {
return; // nothing to update
}
// update the text displaying
update_lines();
// handle the end of the visible lines
if (is_full()) {
// update the message end arrow
end_lines_sprite.update();
// show the appropriate action icon
KeysEffect& keys_effect = game.get_keys_effect();
if (!end_lines_sprite.is_animation_started()) {
if (has_more_lines()
|| dialog.has_next()
|| dialog.is_question()) {
end_lines_sprite.set_current_animation("next");
keys_effect.set_action_key_effect(KeysEffect::ACTION_KEY_NEXT);
}
else {
keys_effect.set_action_key_effect(KeysEffect::ACTION_KEY_RETURN);
end_lines_sprite.set_current_animation("last");
}
keys_effect.set_sword_key_effect(KeysEffect::SWORD_KEY_HIDDEN);
Sound::play("message_end");
}
}
}
/**
* @brief This function is called when the user pressed the up or down key.
*/
void DialogBox::up_or_down_key_pressed() {
if (dialog.is_question()
&& !has_more_lines()
&& is_full()) {
// switch the answer
last_answer = 1 - last_answer;
question_dst_position.set_y(
box_dst_position.get_y() + ((last_answer == 0) ? 27 : 40));
Sound::play("cursor");
}
}
/**
* @brief Displays the dialog box on a surface.
* @param destination_surface the surface
*/
void DialogBox::display(Surface* destination_surface) {
int x = box_dst_position.get_x();
int y = box_dst_position.get_y();
dialog_surface.fill_with_color(Color::get_black());
if (style == STYLE_WITHOUT_FRAME) {
// display a dark rectangle
destination_surface->fill_with_color(Color::get_black(),
box_dst_position);
}
else {
// display the dialog box
box_img.blit(box_src_position, &dialog_surface, box_dst_position);
}
// display the text
for (int i = 0; i < nb_visible_lines; i++) {
line_surfaces[i]->display(&dialog_surface);
}
// display the icon
if (icon_number != -1) {
Rectangle src_position(0, 0, 16, 16);
src_position.set_xy(16 * (icon_number % 10), 16 * (icon_number / 10));
icons_img.blit(src_position, &dialog_surface, icon_dst_position);
question_dst_position.set_x(x + 50);
}
else {
question_dst_position.set_x(x + 18);
}
// display the question arrow
if (dialog.is_question()
&& is_full()
&& !has_more_lines()) {
box_img.blit(question_src_position, &dialog_surface, question_dst_position);
}
// display the end message arrow
if (is_full()) {
end_lines_sprite.display(&dialog_surface, x + 103, y + 56);
}
// final blit
dialog_surface.blit(destination_surface);
}
