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#include <curses.h>
#include <stdlib.h>
#define MAIN_PANEL_WIDTH 100
#define MAIN_PANEL_HEIGHT 41
#define INSTRUCTION_PANEL_WIDTH 32
#define INSTRUCTION_PANEL_HEIGHT 43
#define MESSAGE_PANEL_WIDTH 100
#define MESSAGE_PANEL_HEIGHT 3
WINDOW *create_newwin(int height, int width, int starty, int startx)
{
WINDOW *local_win = newwin(height, width, starty, startx);
box(local_win, 0, 0);
wrefresh(local_win);
return local_win;
}
void destroy_win(WINDOW *local_win)
{
wborder(local_win, ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
wrefresh(local_win);
delwin(local_win);
}
int main(void)
{
initscr(); // initialize curses
// exit on unsupported consoles
if (LINES < INSTRUCTION_PANEL_HEIGHT ||
COLS < MAIN_PANEL_WIDTH + INSTRUCTION_PANEL_WIDTH || !has_colors()) {
endwin();
fprintf(
stderr,
"a color terminal is required with at least %dx%d characters\n",
INSTRUCTION_PANEL_WIDTH + MAIN_PANEL_WIDTH, INSTRUCTION_PANEL_HEIGHT
);
exit(1);
}
// configure curses if startup was successful
raw(); // disable line buffering
keypad(stdscr, TRUE); // enable reading function keys
noecho(); // don't print input
curs_set(0); // disable the cursor
start_color(); // enable colours
int starty = 12;
int startx = 40;
init_pair(1, COLOR_WHITE, COLOR_BLACK);
wattron(stdscr, COLOR_PAIR(1));
refresh();
// create the windows
WINDOW *inst = create_newwin(
INSTRUCTION_PANEL_HEIGHT, INSTRUCTION_PANEL_WIDTH,
(LINES - INSTRUCTION_PANEL_HEIGHT) / 2,
(COLS - MAIN_PANEL_WIDTH - INSTRUCTION_PANEL_WIDTH) / 2 +
MAIN_PANEL_WIDTH - 1
);
WINDOW *msgs = create_newwin(
MESSAGE_PANEL_HEIGHT, MESSAGE_PANEL_WIDTH,
(LINES - MAIN_PANEL_HEIGHT - MESSAGE_PANEL_HEIGHT) / 2 +
MAIN_PANEL_HEIGHT,
(COLS - MESSAGE_PANEL_WIDTH - INSTRUCTION_PANEL_WIDTH) / 2
);
WINDOW *main_win = create_newwin(
MAIN_PANEL_HEIGHT, MAIN_PANEL_WIDTH,
(LINES - MAIN_PANEL_HEIGHT - MESSAGE_PANEL_HEIGHT) / 2 + 1,
(COLS - MAIN_PANEL_WIDTH - INSTRUCTION_PANEL_WIDTH) / 2
);
mvwprintw(inst, 1, 2, "h - move left");
mvwprintw(inst, 2, 2, "j - move down");
mvwprintw(inst, 3, 2, "k - move up");
mvwprintw(inst, 4, 2, "l - move right");
wrefresh(inst);
mvwprintw(msgs, 1, 1, "TODO: put messages here");
wrefresh(msgs);
wattron(main_win, COLOR_PAIR(1));
mvwaddch(main_win, starty, startx, '@');
wrefresh(main_win);
int ch;
while ((ch = getch()) != KEY_F(1)) {
switch (ch) {
case 'k' :
if (starty > 1) {
mvwaddch(main_win, starty, startx, ' ');
mvwaddch(main_win, --starty, startx, '@');
}
break;
case 'j' :
if (starty < MAIN_PANEL_HEIGHT - 2) {
mvwaddch(main_win, starty, startx, ' ');
mvwaddch(main_win, ++starty, startx, '@');
}
break;
case 'h' :
if (startx > 1) {
mvwaddch(main_win, starty, startx, ' ');
mvwaddch(main_win, starty, --startx, '@');
}
break;
case 'l' :
if (startx < MAIN_PANEL_WIDTH - 2) {
mvwaddch(main_win, starty, startx, ' ');
mvwaddch(main_win, starty, ++startx, '@');
}
break;
}
wrefresh(main_win);
}
endwin();
return 0;
}
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