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menu.c
116 lines (88 loc) · 2.07 KB
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menu.c
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#include <allegro.h>
#include <stdlib.h>
#include <stdio.h>
#include "menu.h"
#include "main.h"
void inicializaMenu(OPCOES *menu)
{
int i, h;
PONTO p1, p2;
menu->itens[0].text = "I n i c i a r";
menu->itens[1].text = "C o n f i g u r a ç ã o";
menu->itens[2].text = "R e c o r d e s";
menu->itens[3].text = "S a i r";
menu->w = RES_X/4;
menu->h = RES_Y/20;
menu->x = RES_X/2;
menu->y = RES_Y/2 -200;
p1.x = menu->x - menu->w/2;
p2.x = menu->x + menu->w/2;
h = menu->y;
for (i = 0; i < NUM_ITENS; i++)
{
h += menu->h;
p1.y = h;
p2.y = h + menu->h;
h += OPCOES_GAP;
menu->itens[i].p1 = p1;
menu->itens[i].p2 = p2;
menu->itens[i].code = i;
}
}
void desenhaMenu(BITMAP *buffer, OPCOES *menu, int selected)
{
int i, ym, cor;
PONTO p1, p2;
OPCAO op;
for (i = 0; i < NUM_ITENS; i++)
{
op = menu->itens[i];
p1 = op.p1; p2 = op.p2;
if (selected == i)
cor = makecol(255,0,0);
else
cor = makecol(255,255,255);
rectfill(buffer, p1.x, p1.y, p2.x, p2.y, cor);
rectfill(buffer, p1.x+5, p1.y+5, p2.x-5, p2.y-5, makecol(0,0,0));
ym = (p1.y + p2.y) / 2;
textprintf_centre_ex(buffer, font, menu->x, ym, makecol(255,255,255), -1, "%s", menu->itens[i].text);
}
}
int abrirMenu(BITMAP *buffer, OPCOES *menu, ESTRELA *estrelas)
{
int selected, code, keyCount;
selected = 0, code = -1;
inicializaMenu(menu);
while(code == -1)
{
clear(buffer);
desenhaEstrelas(buffer, estrelas);
desenhaMenu(buffer, menu, selected);
movimentaEstrelas(estrelas);
code = selecionarItemTeclado(menu, &selected, &keyCount);
draw_sprite(screen, buffer, 0, 0);
rest(10);
}
return code;
}
int selecionarItemTeclado(OPCOES *menu, int *selected, int *keyCount)
{
clear_keybuf();
if (key[KEY_UP] && *keyCount == 0 && *selected != 0)
{
*keyCount += 1;
*selected -= 1;
}
if (key[KEY_DOWN] && *keyCount == 0 && *selected < NUM_ITENS-1)
{
*keyCount += 1;
*selected += 1;
}
if (!key[KEY_UP] && !key[KEY_DOWN])
*keyCount = 0;
if (key[KEY_ENTER])
{
return menu->itens[*selected].code;
}
return -1;
}