/src/MenuExperience.cpp

  1/*
  2Copyright 2011 Clint Bellanger
  3
  4This file is part of FLARE.
  5
  6FLARE is free software: you can redistribute it and/or modify it under the terms
  7of the GNU General Public License as published by the Free Software Foundation,
  8either version 3 of the License, or (at your option) any later version.
  9
 10FLARE is distributed in the hope that it will be useful, but WITHOUT ANY
 11WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 12PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 13
 14You should have received a copy of the GNU General Public License along with
 15FLARE.  If not, see http://www.gnu.org/licenses/
 16*/
 17
 18/**
 19 * MenuExperience
 20 *
 21 * Handles the display of the Experience bar on the HUD
 22 */
 23
 24#include "MenuExperience.h"
 25#include "SharedResources.h"
 26#include "WidgetLabel.h"
 27
 28#include <SDL_mixer.h>
 29
 30#include <string>
 31#include <sstream>
 32
 33using namespace std;
 34
 35
 36MenuExperience::MenuExperience() {
 37	loadGraphics();
 38	
 39	// move these settings to a config file
 40	hud_position.x = 0;
 41	hud_position.y = 32;
 42	hud_position.w = 106;
 43	hud_position.h = 26;
 44	background_offset.x = 0;
 45	background_offset.y = 0;
 46	background_size.x = 106;
 47	background_size.y = 10;
 48	bar_offset.x = 3;
 49	bar_offset.y = 3;
 50	bar_size.x = 100;
 51	bar_size.y = 4;
 52	text_offset.x = 2;
 53	text_offset.y = 12;
 54	text_justify = JUSTIFY_LEFT;
 55}
 56
 57void MenuExperience::loadGraphics() {
 58
 59	background = IMG_Load(mods->locate("images/menus/menu_xp.png").c_str());
 60	bar = IMG_Load(mods->locate("images/menus/bar_xp.png").c_str());
 61	
 62	if(!background || !bar) {
 63		fprintf(stderr, "Couldn't load image: %s\n", IMG_GetError());
 64		Mix_CloseAudio();
 65		SDL_Quit();
 66	}
 67
 68	// optimize
 69	SDL_Surface *cleanup = background;
 70	background = SDL_DisplayFormatAlpha(background);
 71	SDL_FreeSurface(cleanup);	
 72	
 73	cleanup = bar;
 74	bar = SDL_DisplayFormatAlpha(bar);
 75	SDL_FreeSurface(cleanup);
 76}
 77
 78/**
 79 * Display the XP bar background and current progress.
 80 * On mouseover, display progress in text form.
 81 */
 82void MenuExperience::render(StatBlock *stats, Point mouse) {
 83
 84	SDL_Rect src;
 85	SDL_Rect dest;
 86	int xp_bar_length;
 87
 88	// don't display anything if max level
 89	if (stats->level < 1 || stats->level == MAX_CHARACTER_LEVEL) return;
 90	
 91	// lay down the background image first
 92	src.x = 0;
 93	src.y = 0;
 94	src.w = background_size.x;
 95	src.h = background_size.y;
 96	dest.x = hud_position.x + background_offset.x;
 97	dest.y = hud_position.y + background_offset.y;
 98	SDL_BlitSurface(background, &src, screen, &dest);
 99	
100	// calculate the length of the xp bar
101	// when at a new level, 0% progress
102	src.x = 0;
103	src.y = 0;
104	int required = stats->xp_table[stats->level] - stats->xp_table[stats->level-1];
105	int current = stats->xp - stats->xp_table[stats->level-1];
106	xp_bar_length = (current * bar_size.x) / required;
107	src.w = xp_bar_length;
108	src.h = bar_size.y;
109	dest.x = hud_position.x + bar_offset.x;
110	dest.y = hud_position.y + bar_offset.y;
111		
112	// draw xp bar
113	SDL_BlitSurface(bar, &src, screen, &dest);
114
115
116	string text_label;
117	
118	// if mouseover, draw text
119	if (isWithin(hud_position, mouse)) {
120
121		if (stats->level < MAX_CHARACTER_LEVEL) {
122			text_label = msg->get("XP: %d/%d", stats->xp, stats->xp_table[stats->level]);
123		}
124		else {
125			text_label = msg->get("XP: %d", stats->xp);
126		}
127
128		WidgetLabel label;
129		label.set(hud_position.x + text_offset.x, hud_position.y + text_offset.y, text_justify, VALIGN_TOP, text_label, FONT_WHITE);
130		label.render();
131	}
132}
133
134MenuExperience::~MenuExperience() {
135	SDL_FreeSurface(background);
136	SDL_FreeSurface(bar);
137}
138