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#include <curses.h>
#include <stdbool.h>
#include <string.h>
#include "config.h"
#include "tower.h"
#include "ring.h"
#define TERMINAL_MIN_HEIGHT 14
#define TERMINAL_MIN_WIDTH 39
void init_rings();
void init_towers();
bool check_terminal();
void draw_title();
void draw_body();
void draw_tower(int ring_index, int startx, int starty);
void draw_win();
void draw_move_count();
void input_loop();
WINDOW *wmain;
WINDOW *wbody;
Ring rings[3];
Ring *held = NULL;
Tower towers[3];
int hover = 0; // initially, hover over the leftmost tower
int move_count = 0;
int main()
{
init_rings();
init_towers();
wmain = initscr();
cbreak();
noecho();
curs_set(0);
keypad(stdscr, TRUE);
// check that the terminal can handle the program
if(check_terminal()) {
// draw title
draw_title();
refresh();
// draw body
wbody = newwin(12, getmaxx(wmain), getmaxy(wmain)/2 - 6, 0);
draw_body();
wrefresh(wbody);
input_loop();
}
endwin();
return 0;
}
void init_rings() {
int i;
// initialize rings
strcpy(rings[0].ascii, " ======= ");
strcpy(rings[1].ascii, " ===== ");
strcpy(rings[2].ascii, " === ");
for(i = 2; i >= 0; --i) {
rings[i].size = i;
rings[i].location = 0;
rings[i].held = false;
}
}
void init_towers() {
// initialize towers
memset(towers[0].rings, true, 3);
memset(towers[1].rings, false, 3);
memset(towers[2].rings, false, 3);
}
bool check_terminal() {
// check that terminal is big enough
if(getmaxx(wmain) < TERMINAL_MIN_WIDTH) return false;
if(getmaxy(wmain) < TERMINAL_MIN_HEIGHT) return false;
return true;
}
void draw_title() {
move(0, getmaxx(wmain)/2 - strlen(TITLE)/2);
printw(TITLE);
}
void draw_body() {
werase(wbody);
draw_tower(0, getmaxx(wbody)/4 - 4, 8);
draw_tower(1, getmaxx(wbody)/2 - 4, 8);
draw_tower(2, 3*getmaxx(wbody)/4 - 4, 8);
draw_move_count();
// FIXME placeholder implementation
/*
mvprintw(1, 0, " ^ ");
mvprintw(getcury(wmain)+1, 0, " | ");
mvprintw(getcury(wmain)+1, 0, " | ");
mvprintw(getcury(wmain)+1, 0, " | ");
mvprintw(getcury(wmain)+1, 0, " | ");
mvprintw(getcury(wmain)+1, 0, "---------");
mvprintw(1, 10, " ^ ");
mvprintw(getcury(wmain)+1, 10, " | ");
mvprintw(getcury(wmain)+1, 10, " === ");
mvprintw(getcury(wmain)+1, 10, " ===== ");
mvprintw(getcury(wmain)+1, 10, " ======= ");
mvprintw(getcury(wmain)+1, 10, "---------");
*/
// DEBUG
if(DEBUG) {
mvprintw(0, 0, "tower 1: %c %c %c", (towers[0].rings[0] ? 'X' : '_'), (towers[0].rings[1] ? 'X' : '_'), (towers[0].rings[2] ? 'X' : '_'));
mvprintw(1, 0, "tower 2: %c %c %c", (towers[1].rings[0] ? 'X' : '_'), (towers[1].rings[1] ? 'X' : '_'), (towers[1].rings[2] ? 'X' : '_'));
mvprintw(2, 0, "tower 3: %c %c %c", (towers[2].rings[0] ? 'X' : '_'), (towers[2].rings[1] ? 'X' : '_'), (towers[2].rings[2] ? 'X' : '_'));
mvprintw(3, 0, "ring 1:");
mvprintw(4, 2, "location: %d", rings[0].location);
mvprintw(5, 2, "held: %d", rings[0].held);
mvprintw(6, 2, "size: %d", rings[0].size);
mvprintw(7, 2, "ascii: %s", rings[0].ascii);
mvprintw(8, 0, "ring 2:");
mvprintw(9, 2, "location: %d", rings[1].location);
mvprintw(10, 2, "held: %d", rings[1].held);
mvprintw(11, 2, "size: %d", rings[1].size);
mvprintw(12, 2, "ascii: %s", rings[1].ascii);
mvprintw(13, 0, "ring 3:");
mvprintw(14, 2, "location: %d", rings[2].location);
mvprintw(15, 2, "held: %d", rings[2].held);
mvprintw(16, 2, "size: %d", rings[2].size);
mvprintw(17, 2, "ascii: %s", rings[2].ascii);
}
if(held == NULL && check_win_condition()) draw_win();
}
void draw_tower(int ring_index, int startx, int starty) {
int count;
int i;
// turn on bold attribute if tower is on hover
if(ring_index == hover) wattron(wbody, A_BOLD);
count = 4;
mvwprintw(wbody, starty, startx, "---------");
for(i = 0; i < 3; ++i) {
if(towers[ring_index].rings[i] && !rings[i].held) {
mvwprintw(wbody, getcury(wbody)-1, startx, rings[i].ascii);
--count;
}
}
while(count > 0) {
mvwprintw(wbody, getcury(wbody)-1, startx, " | ");
--count;
}
mvwprintw(wbody, getcury(wbody)-1, startx, " ^ ");
// draw held ring above the others
if(held != NULL && held->location == ring_index) {
mvwprintw(wbody, getcury(wbody)-2, startx, held->ascii);
}
wattroff(wbody, A_BOLD);
}
void draw_win() {
char *message = "WINNER (Return Key to play again)";
mvwprintw(wbody, getmaxy(wbody)/2, getmaxx(wbody)/2 - strlen(message)/2, message);
}
void draw_move_count() {
// tried to use log10, but this created weird problems
int local_move_count = move_count;
int count_length = 1;
while(local_move_count >= 10) {
local_move_count /= 10;
++count_length;
}
mvwprintw(wbody, 10, getmaxx(wbody)/2 - (7 + count_length)/2,
"moves: %d", move_count);
}
void input_loop() {
int input = 0;
while(input != 'q') {
input = getch();
if(held != NULL || !check_win_condition()) {
switch(input) {
case KEY_RIGHT:
hover_move_right();
draw_body();
wrefresh(wbody);
break;
case KEY_LEFT:
hover_move_left();
draw_body();
wrefresh(wbody);
break;
// pickup a ring
case ' ': // spacebar
if(held == NULL) {
pickup_ring();
if(held != NULL) ++move_count;
draw_body();
wrefresh(wbody);
}
else {
if(drop_ring()) {
draw_body();
wrefresh(wbody);
}
}
break;
}
}
else {
switch(input) {
case 10: // enter/return key
init_rings();
init_towers();
hover = 0;
move_count = 0;
draw_body();
wrefresh(wbody);
break;
}
}
}
}
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