bettola/client/src/ui/login_screen.cpp

150 lines
6.5 KiB
C++

#include <string>
#include <vector>
#include "gfx/types.h"
#include "ui/ui_renderer.h"
#include "ui/login_screen.h"
LoginScreen::LoginScreen(int screen_width, int screen_height)
: _screen_width(screen_width), _screen_height(screen_height) {}
LoginScreen::~LoginScreen(void) {}
void LoginScreen::update(float dt) {
/* TODO: */
}
void LoginScreen::render(const RenderContext& context) const {
UIRenderer* ui_renderer = context.ui_renderer;
/* Colours. */
const Color text_color = { 0.8f, 0.8f, 0.8f };
const Color inactive_box_color = { 0.1f, 0.1f, 0.15f };
const Color active_box_color = { 0.15f, 0.15f, 0.2f };
const Color warning_color = { 0.7f, 0.3f, 0.3f };
/* Layout. */
const int box_width = 300;
const int box_height = 30;
const int center_x = (_screen_width - box_width) / 2;
const int start_y = _screen_height / 2 - 100;
const Rect username_rect = { center_x, start_y+40, box_width, box_height };
const Rect password_rect = { center_x, start_y+100, box_width, box_height };
const Rect hostname_rect = { center_x, start_y+160, box_width, box_height };
ui_renderer->begin_shapes();
ui_renderer->begin_text();
/* Draw title. */
const char* title = _is_new_account ? "Create Account" : "Login";
float title_width = ui_renderer->get_text_renderer()->get_text_width(title, 1.0f);
ui_renderer->render_text(title, (_screen_width-title_width)/2, start_y, text_color);
/* Draw input boxes and labels. */
/* Username */
ui_renderer->render_text("Username", username_rect.x, username_rect.y-5, text_color);
ui_renderer->draw_rect(username_rect.x, username_rect.y, username_rect.w, username_rect.h,
_active_field == 0 ? active_box_color : inactive_box_color);
ui_renderer->render_text(_username_input.c_str(), username_rect.x+10, username_rect.y+20, text_color);
if(_active_field == 0 && context.show_cursor) {
float cursor_x = username_rect.x + 10 +
ui_renderer->get_text_renderer()->get_text_width(_username_input.c_str(), 1.0f);
ui_renderer->draw_rect((int)cursor_x, username_rect.y+5, 2, 20, text_color);
}
/* Password. */
ui_renderer->render_text("Password", password_rect.x, password_rect.y-5, text_color);
ui_renderer->draw_rect(password_rect.x, password_rect.y, password_rect.w, password_rect.h,
_active_field == 1 ? active_box_color : inactive_box_color);
ui_renderer->render_text(_password_input.c_str(), password_rect.x+10, password_rect.y+20, text_color);
if(_active_field == 1 && context.show_cursor) {
float cursor_x = password_rect.x + 10 +
ui_renderer->get_text_renderer()->get_text_width(_password_input.c_str(), 1.0f);
ui_renderer->draw_rect((int)cursor_x, password_rect.y+5, 2, 20, text_color);
}
/* Hostname (only for new account). */
if(_is_new_account) {
ui_renderer->render_text("Hostname", hostname_rect.x, hostname_rect.y-5, text_color);
ui_renderer->draw_rect(hostname_rect.x, hostname_rect.y, hostname_rect.w, hostname_rect.h,
_active_field == 2 ? active_box_color : inactive_box_color);
ui_renderer->render_text(_hostname_input.c_str(), hostname_rect.x+10, hostname_rect.y+20, text_color);
if(_active_field == 2 && context.show_cursor) {
float cursor_x = hostname_rect.x + 10 +
ui_renderer->get_text_renderer()->get_text_width(_hostname_input.c_str(), 1.0f);
ui_renderer->draw_rect((int)cursor_x, hostname_rect.y+5, 2, 20, text_color);
}
}
/* Draw the security warning. */
const char* warning_title = "Security Warning";
float warning_title_width = ui_renderer->get_text_renderer()->get_text_width(warning_title, 1.0f);
ui_renderer->render_text(warning_title, (_screen_width-warning_title_width)/2,
_screen_height-120, warning_color);
const std::vector<std::string> warning_lines = {
"Passwords in Bettola are stored in plain text by design.",
"Players, can, and will attempt to obtain your password.",
"DO NOT use a password you have used for any other game or service.",
"Use a unique, throwaway password for this game only!"
};
for(size_t i = 0; i < warning_lines.size(); ++i) {
const std::string& line = warning_lines[i];
float line_width = ui_renderer->get_text_renderer()->get_text_width(line.c_str(), 1.0f);
ui_renderer->render_text(line.c_str(), (_screen_width-line_width)/2,
_screen_height-100+(i*20), warning_color);
}
ui_renderer->flush_shapes();
ui_renderer->flush_text();
}
void LoginScreen::handle_event(const SDL_Event* event) {
if(event->type == SDL_EVENT_TEXT_INPUT) {
/* Append character to active input string. */
switch(_active_field) {
case 0: _username_input += event->text.text; break;
case 1: _password_input += event->text.text; break;
case 2: if(_is_new_account) { _hostname_input += event->text.text; } break;
}
} else if(event->type == SDL_EVENT_KEY_DOWN) {
if(event->key.key == SDLK_BACKSPACE) {
/* Handle backspace. */
switch(_active_field) {
case 0: if(!_username_input.empty()) { _username_input.pop_back(); } break;
case 1: if(!_password_input.empty()) { _password_input.pop_back(); } break;
case 2: if(_is_new_account && !_hostname_input.empty()) {
_hostname_input.pop_back();
}
break;
}
} else if(event->key.key == SDLK_TAB) {
/* Tab to switch fields. */
int num_fields = _is_new_account ? 3 : 2;
_active_field = (_active_field+1) % num_fields;
} else if(event->key.key == SDLK_RETURN) {
_login_attempted = true;
}
} else if(event->type == SDL_EVENT_MOUSE_BUTTON_DOWN) {
/* Handle mouse clicks. */
int mouse_x = event->button.x;
int mouse_y = event->button.y;
/* Recalculate rects to check for clicks. */
const int box_width = 300;
const int start_y = _screen_height / 2 - 100;
const int center_x = (_screen_width - box_width) / 2;
const Rect username_rect = { center_x, start_y+40, box_width, 30 };
const Rect password_rect = { center_x, start_y+100, box_width, 30 };
const Rect hostname_rect = { center_x, start_y+160, box_width, 30 };
if(mouse_y >= username_rect.y && mouse_y <= username_rect.y + username_rect.h)
_active_field = 0;
else if(mouse_y >= password_rect.y && mouse_y <= password_rect.y + password_rect.h)
_active_field = 1;
else if(_is_new_account && (mouse_y >= hostname_rect.y && mouse_y <= hostname_rect.y + hostname_rect.h))
_active_field = 2;
}
}