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tortis.c
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tortis.c
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/*
* Tortis: A Tetris Clone
* Walter Mays
*
* Entry Point
*/
#include <curses.h>
#include <time.h>
#include <stdbool.h>
#include <sys/select.h>
#include <sys/time.h>
#include "board.h"
#include "scoreboard.h"
#include "grabbag.h"
#include "color.h"
#include "menu.h"
#include "keys.h"
#define MICROS_TO_SECONDS 1000000
#define BOARD_WIDTH 10
#define BOARD_HEIGHT 22
#define INFO_PANEL_WIDTH 8
#define GRABBAG_REPETITIONS 4
#define CHOICE_STRS {"Normal Mode", "Zen Mode", "Exit Tortis"}
#define CHOICE_NUM 3
#define CHOICE_TITLE "Main Menu"
#define CHOICE_PLAY 0
#define CHOICE_ZEN 1
#define CHOICE_EXIT 2
static long TIMEOUTS[] = {
1000000,
750000,
620000,
500000,
420000,
350000,
250000,
200000,
150000,
100000,
50000
};
static int TIMEOUT_COUNT = sizeof(TIMEOUTS)/sizeof(TIMEOUTS[0]);
static Board* board;
static Board* previewBoard;
static ScoreBoard* scoreboard;
static WINDOW* gameWin;
static WINDOW* boardWin;
static WINDOW* previewWin;
static WINDOW* scoreWin;
static GrabBag* grabBag;
static bool showProjection = false;
static bool isZen;
/* Performs curses and game struct initialization. */
void setup(void);
/* Initializes the game window and board window. */
void initWindows(void);
/* Redraws all of the windows and refreshes the screen. */
void redrawGame(void);
/* The main game loop. */
void gameLoop(void);
/* Gets input and simulates the block until it is locked into place. */
void dropBlock(long timeout);
/* Gets the next piece and updates the preview so that we can properly know
* what pieces are coming. */
enum PieceType getNextPiece(void);
/* Redraws the window that shows the next piece. */
void redrawPreviewWindow(void);
/* Shows the main menu and returns the choice made. */
int showMainMenu(void);
int main() {
setup();
bool running = true;
int choice;
while (running) {
scoreboard->linesCleared = 0;
scoreboard->score = 0;
scoreboard->difficulty = 0;
redrawGame();
board_clear(board);
choice = showMainMenu();
switch (choice) {
case CHOICE_PLAY:
isZen = false;
gameLoop();
break;
case CHOICE_ZEN:
isZen = true;
gameLoop();
break;
case CHOICE_EXIT:
running = false;
break;
default:
// We don't know what else to do
running = false;
}
}
board_free(board);
scoreboard_free(scoreboard);
grabbag_free(grabBag);
delwin(boardWin);
delwin(gameWin);
endwin();
return 0;
}
void setup() {
initscr();
raw();
noecho();
curs_set(0);
refresh();
colors_init();
board = board_init(BOARD_WIDTH, BOARD_HEIGHT);
previewBoard = board_init(INFO_PANEL_WIDTH, INFO_PANEL_WIDTH);
scoreboard = scoreboard_init();
// initialize the grab bag for piece selection
grabBag = grabbag_init(GRABBAG_REPETITIONS);
getNextPiece();
// initialize the windows
initWindows();
}
void initWindows() {
int boardWinWidth = (BOARD_WIDTH*2) + 2;
int infoWinWidth = (INFO_PANEL_WIDTH*2) + 2;
int totalWidth = boardWinWidth+infoWinWidth;
int winHeight = BOARD_HEIGHT+2;
int previewHeight = INFO_PANEL_WIDTH + 2;
int infoWinHeight = winHeight - previewHeight;
int tWidth, tHeight;
getmaxyx(stdscr, tHeight, tWidth);
gameWin = newwin(winHeight, totalWidth, (tHeight-winHeight)/2,
(tWidth-totalWidth)/2);
boardWin = derwin(gameWin, winHeight, boardWinWidth, 0, 0);
previewWin = derwin(gameWin, previewHeight, infoWinWidth, 0, boardWinWidth);
scoreWin = derwin(gameWin, infoWinHeight, infoWinWidth, previewHeight, boardWinWidth);
redrawPreviewWindow();
}
void redrawGame() {
board_draw(board, boardWin, showProjection);
wrefresh(gameWin);
refresh();
}
void gameLoop() {
redrawGame();
redrawPreviewWindow();
bool running = true;
while (running) {
if (board->piece == NULL) {
enum PieceType piece = getNextPiece();
board_setPiece(board, piece);
}
int timeoutIndex = (scoreboard->difficulty < TIMEOUT_COUNT) ?
scoreboard->difficulty : TIMEOUT_COUNT-1;
long timeout = isZen ? TIMEOUTS[0] : TIMEOUTS[timeoutIndex];
dropBlock(timeout);
// check if you lost, bruh
if (board->piece->pos.y <= 0) {
running = false;
break;
}
board_cementPiece(board);
// check for any lines to clear
int i;
int turnLinesCleared = 0;
for (i = 0; i < board->height; i++) {
if (board_isLineFull(board, i)) {
board_setCleared(board, i);
turnLinesCleared++;
}
}
if (turnLinesCleared > 0) {
board_clearLines(board, boardWin, MICROS_TO_SECONDS / 10, 3);
}
scoreboard_clearLines(scoreboard, turnLinesCleared);
}
}
void dropBlock(long timeout) {
bool falling = true;
struct timeval time, tmp_time;
// setup inputs for select
fd_set in, tmp_in;
FD_ZERO(&in);
FD_SET(0, &in); //adds stdin
time.tv_sec = timeout/MICROS_TO_SECONDS;
time.tv_usec = timeout%MICROS_TO_SECONDS;
tmp_time = time;
while (falling) {
redrawGame();
tmp_in = in; // so we don't overwrite the stream
int sel_value = select(FD_SETSIZE, &tmp_in, NULL, NULL, &tmp_time);
if (sel_value != 0) { // we didn't timeout
int c = getch();
switch(c) {
case KEY_UP:
board_rotatePiece(board, false);
break;
case KEY_LEFT:
board_movePiece(board, -1, 0);
break;
case KEY_RIGHT:
board_movePiece(board, 1, 0);
break;
case KEY_DOWN:
if (board_movePiece(board, 0, 1)) {
// reset the timer
tmp_time = time;
} else {
falling = false;
}
break;
case KEY_QUICKDROP:
while (board_movePiece(board, 0, 1)){}
falling = false;
break;
case KEY_PROJECT:
showProjection = !showProjection;
break;
case KEY_PAUSE:
// simple pausing
menu_pauseMenu();
// the board gets immediately redrawn, but these windows
// might not
redrawwin(scoreWin);
wrefresh(scoreWin);
redrawwin(previewWin);
wrefresh(previewWin);
refresh();
break;
}
} else { // we timed out
if (board_movePiece(board, 0, 1)) {
// reset the timer
tmp_time = time;
} else {
falling = false;
}
}
}
}
enum PieceType getNextPiece() {
enum PieceType piece;
if (previewBoard->piece != NULL) {
piece = previewBoard->piece->type;
} else {
grabbag_next(grabBag, &piece);
}
enum PieceType newPiece;
grabbag_next(grabBag, &newPiece);
board_setPiece(previewBoard, newPiece);
board_movePiece(previewBoard, 0, INFO_PANEL_WIDTH/2-1);
//board->piece->pos = c;
redrawPreviewWindow();
return piece;
}
int showMainMenu() {
char* choices[] = CHOICE_STRS;
int value = menu_choice(CHOICE_TITLE, CHOICE_NUM, choices);
return value;
}
void redrawPreviewWindow() {
board_draw(previewBoard, previewWin, false);
scoreboard_draw(scoreboard, scoreWin);
}