diff options
Diffstat (limited to 'client.c')
-rw-r--r-- | client.c | 614 |
1 files changed, 219 insertions, 395 deletions
diff --git a/client.c b/client.c index 37cc7ce..ad0bc8e 100644 --- a/client.c +++ b/client.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2017 Curtis McEnroe <june@causal.agency> +/* Copyright (C) 2018 Curtis McEnroe <june@causal.agency> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by @@ -14,12 +14,14 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <ctype.h> +#define _XOPEN_SOURCE_EXTENDED + #include <curses.h> #include <err.h> #include <errno.h> -#include <math.h> +#include <locale.h> #include <poll.h> +#include <stdbool.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> @@ -27,43 +29,42 @@ #include <sys/un.h> #include <sysexits.h> #include <unistd.h> +#include <wchar.h> +#include <wctype.h> #include "torus.h" +#define err(...) do { endwin(); err(__VA_ARGS__); } while(0) +#define errx(...) do { endwin(); errx(__VA_ARGS__); } while (0) + +#define CTRL(ch) ((ch) ^ 0x40) enum { ESC = 0x1B, DEL = 0x7F, }; -static int client; - -static void clientMessage(struct ClientMessage msg) { - ssize_t size = send(client, &msg, sizeof(msg), 0); - if (size < 0) err(EX_IOERR, "send"); -} - -static void clientMove(int8_t dx, int8_t dy) { - struct ClientMessage msg = { - .type = CLIENT_MOVE, - .move = { .dx = dx, .dy = dy }, - }; - clientMessage(msg); -} - -static void clientPut(uint8_t color, char cell) { - struct ClientMessage msg = { - .type = CLIENT_PUT, - .put = { .color = color, .cell = cell }, - }; - clientMessage(msg); -} +static void curse(void) { + setlocale(LC_CTYPE, ""); -static void clientMap(void) { - struct ClientMessage msg = { .type = CLIENT_MAP }; - clientMessage(msg); -} + initscr(); + start_color(); + if (!has_colors() || COLOR_PAIRS < 64) { + endwin(); + fprintf(stderr, "Sorry, your terminal doesn't support colors!\n"); + fprintf(stderr, "If you think it should, check TERM.\n"); + exit(EX_CONFIG); + } + if (LINES < CELL_ROWS || COLS < CELL_COLS) { + endwin(); + fprintf( + stderr, + "Sorry, your terminal is too small!\n" + "It must be at least %ux%u characters.\n", + CELL_COLS, CELL_ROWS + ); + exit(EX_CONFIG); + } -static void colorPairs(void) { assume_default_colors(0, 0); if (COLORS >= 16) { for (short pair = 1; pair < 0x80; ++pair) { @@ -74,421 +75,243 @@ static void colorPairs(void) { init_pair(pair, pair & 007, (pair & 070) >> 3); } } -} -static chtype colorAttr(uint8_t color) { - if (COLORS >= 16) return COLOR_PAIR(color); - chtype bold = (color & COLOR_BRIGHT) ? A_BOLD : A_NORMAL; - short pair = (color & 0x70) >> 1 | (color & 0x07); - return bold | COLOR_PAIR(pair); -} + color_set(COLOR_WHITE, NULL); + bool hline = (LINES > CELL_ROWS); + bool vline = (COLS > CELL_COLS); + if (hline) mvhline(CELL_ROWS, 0, 0, CELL_COLS); + if (vline) mvvline(0, CELL_COLS, 0, CELL_ROWS); + if (hline && vline) mvaddch(CELL_ROWS, CELL_COLS, ACS_LRCORNER); -static uint8_t attrColor(chtype attr) { - if (COLORS >= 16) return PAIR_NUMBER(attr); - uint8_t bright = (attr & A_BOLD) ? COLOR_BRIGHT : 0; - short pair = PAIR_NUMBER(attr); - return (pair & 070) << 1 | bright | (pair & 007); + cbreak(); + noecho(); + keypad(stdscr, true); + set_escdelay(100); } -static struct { - int8_t speed; - uint8_t color; - enum { - MODE_NORMAL, - MODE_MAP, - MODE_INSERT, - MODE_REPLACE, - MODE_PUT, - MODE_DRAW, - } mode; - int8_t dx; - int8_t dy; - uint8_t len; - char draw; -} input = { - .speed = 1, - .color = COLOR_WHITE, - .dx = 1, -}; - -static void colorFg(uint8_t fg) { - input.color = (input.color & 0xF8) | fg; +static attr_t colorAttr(uint8_t color) { + if (COLORS >= 16) return A_NORMAL; + return (color & COLOR_BRIGHT) ? A_BOLD : A_NORMAL; } - -static void colorBg(uint8_t bg) { - input.color = (input.color & 0x0F) | (bg << 4); +static short colorPair(uint8_t color) { + if (COLORS >= 16) return color; + return (color & 0x70) >> 1 | (color & 0x07); } -static void colorInvert(void) { - input.color = - (input.color & 0x08) | - ((input.color & 0x07) << 4) | - ((input.color & 0x70) >> 4); +static void put(uint8_t cellX, uint8_t cellY, uint8_t color, uint8_t cell) { + cchar_t cch; + wchar_t wch[] = { CP437[cell], L'\0' }; + setcchar(&cch, wch, colorAttr(color), colorPair(color), NULL); + mvadd_wch(cellY, cellX, &cch); } -static void insertMode(int8_t dx, int8_t dy) { - input.mode = MODE_INSERT; - input.dx = dx; - input.dy = dy; - input.len = 0; -} +static int client; -static void swapCell(int8_t dx, int8_t dy) { - uint8_t aColor = attrColor(inch()); - char aCell = inch() & A_CHARTEXT; +static void serverTile(void) { + struct Tile tile; + ssize_t size = recv(client, &tile, sizeof(tile), 0); + if (size < 0) err(EX_IOERR, "recv"); + if ((size_t)size < sizeof(tile)) errx(EX_PROTOCOL, "truncated tile"); - int sy, sx; - getyx(stdscr, sy, sx); - move(sy + dy, sx + dx); - uint8_t bColor = attrColor(inch()); - char bCell = inch() & A_CHARTEXT; - move(sy, sx); + for (uint8_t cellY = 0; cellY < CELL_ROWS; ++cellY) { + for (uint8_t cellX = 0; cellX < CELL_COLS; ++cellX) { + put(cellX, cellY, tile.colors[cellY][cellX], tile.cells[cellY][cellX]); + } + } +} - clientPut(bColor, bCell); - clientMove(dx, dy); - clientPut(aColor, aCell); +static void serverPut(struct ServerMessage msg) { + put(msg.put.cellX, msg.put.cellY, msg.put.color, msg.put.cell); } -static void inputNormal(int c) { - switch (c) { - break; case ESC: input.mode = MODE_NORMAL; +static void serverCursor(struct ServerMessage msg) { +} - break; case 'q': endwin(); exit(EX_OK); - break; case 'm': clientMap(); +static void serverMap(void) { +} - break; case 'i': insertMode(1, 0); - break; case 'a': clientMove(1, 0); insertMode(1, 0); - break; case 'I': insertMode(0, 0); - break; case 'r': input.mode = MODE_REPLACE; - break; case 'p': input.mode = MODE_PUT; - break; case 'R': input.mode = MODE_DRAW; input.draw = 0; - break; case 'x': clientPut(attrColor(inch()), ' '); - - break; case '~': { - clientPut(input.color, inch() & A_CHARTEXT); - clientMove(input.dx, input.dy); - } +static void readMessage(void) { + struct ServerMessage msg; + ssize_t size = recv(client, &msg, sizeof(msg), 0); + if (size < 0) err(EX_IOERR, "recv"); + if ((size_t)size < sizeof(msg)) errx(EX_PROTOCOL, "truncated message"); - break; case '[': if (input.speed > 1) input.speed--; - break; case ']': if (input.speed < 4) input.speed++; - - break; case 'h': clientMove(-input.speed, 0); - break; case 'j': clientMove( 0, input.speed); - break; case 'k': clientMove( 0, -input.speed); - break; case 'l': clientMove( input.speed, 0); - break; case 'y': clientMove(-input.speed, -input.speed); - break; case 'u': clientMove( input.speed, -input.speed); - break; case 'b': clientMove(-input.speed, input.speed); - break; case 'n': clientMove( input.speed, input.speed); - - break; case 'H': swapCell(-1, 0); - break; case 'J': swapCell( 0, 1); - break; case 'K': swapCell( 0, -1); - break; case 'L': swapCell( 1, 0); - break; case 'Y': swapCell(-1, -1); - break; case 'U': swapCell( 1, -1); - break; case 'B': swapCell(-1, 1); - break; case 'N': swapCell( 1, 1); - - break; case '`': input.color = attrColor(inch()); - - break; case '0': colorFg(COLOR_BLACK); - break; case '1': colorFg(COLOR_RED); - break; case '2': colorFg(COLOR_GREEN); - break; case '3': colorFg(COLOR_YELLOW); - break; case '4': colorFg(COLOR_BLUE); - break; case '5': colorFg(COLOR_MAGENTA); - break; case '6': colorFg(COLOR_CYAN); - break; case '7': colorFg(COLOR_WHITE); - - break; case ')': colorBg(COLOR_BLACK); - break; case '!': colorBg(COLOR_RED); - break; case '@': colorBg(COLOR_GREEN); - break; case '#': colorBg(COLOR_YELLOW); - break; case '$': colorBg(COLOR_BLUE); - break; case '%': colorBg(COLOR_MAGENTA); - break; case '^': colorBg(COLOR_CYAN); - break; case '&': colorBg(COLOR_WHITE); - - break; case '*': case '8': input.color ^= COLOR_BRIGHT; - - break; case '(': case '9': colorInvert(); - - break; case KEY_LEFT: clientMove(-1, 0); - break; case KEY_DOWN: clientMove( 0, 1); - break; case KEY_UP: clientMove( 0, -1); - break; case KEY_RIGHT: clientMove( 1, 0); + int y, x; + getyx(stdscr, y, x); + switch (msg.type) { + break; case SERVER_TILE: serverTile(); + break; case SERVER_MOVE: y = msg.move.cellY; x = msg.move.cellX; + break; case SERVER_PUT: serverPut(msg); + break; case SERVER_CURSOR: serverCursor(msg); + break; case SERVER_MAP: serverMap(); + break; default: errx(EX_PROTOCOL, "unknown message type %d", msg.type); } + move(y, x); } -static void inputMap(void) { - input.mode = MODE_NORMAL; - curs_set(1); - touchwin(stdscr); +static void clientMessage(struct ClientMessage msg) { + ssize_t size = send(client, &msg, sizeof(msg), 0); + if (size < 0) err(EX_IOERR, "send"); } -static void inputInsert(int c) { - if (c == ESC) { - input.mode = MODE_NORMAL; - clientMove(-input.dx, -input.dy); - } else if (!input.dx && !input.dy) { - switch (c) { - break; case 'h': insertMode(-1, 0); - break; case 'j': insertMode( 0, 1); - break; case 'k': insertMode( 0, -1); - break; case 'l': insertMode( 1, 0); - break; case 'y': insertMode(-1, -1); - break; case 'u': insertMode( 1, -1); - break; case 'b': insertMode(-1, 1); - break; case 'n': insertMode( 1, 1); - } - } else if (c == '\b' || c == DEL) { - clientMove(-input.dx, -input.dy); - clientPut(input.color, ' '); - input.len--; - } else if (c == '\n') { - clientMove(input.dy, input.dx); - clientMove(-input.dx * input.len, -input.dy * input.len); - input.len = 0; - } else if (isprint(c)) { - clientPut(input.color, c); - clientMove(input.dx, input.dy); - input.len++; - } +static void clientMove(int8_t dx, int8_t dy) { + struct ClientMessage msg = { + .type = CLIENT_MOVE, + .move = { .dx = dx, .dy = dy }, + }; + clientMessage(msg); } -static void inputReplace(int c) { - if (isprint(c)) clientPut(attrColor(inch()), c); - input.mode = MODE_NORMAL; +static void clientPut(uint8_t color, uint8_t cell) { + struct ClientMessage msg = { + .type = CLIENT_PUT, + .put = { .color = color, .cell = cell }, + }; + clientMessage(msg); } -static void inputPut(int c) { - if (isprint(c)) clientPut(input.color, c); - input.mode = MODE_NORMAL; +static void clientMap(void) { + struct ClientMessage msg = { .type = CLIENT_MAP }; + clientMessage(msg); } -static void inputDraw(int c) { - if (input.draw) { - inputNormal(c); - clientPut(input.color, input.draw); - } else if (isprint(c)) { - input.draw = c; - clientPut(input.color, c); - } else if (c == ESC) { - input.mode = MODE_NORMAL; - } -} +static struct { + enum { + MODE_NORMAL, + MODE_INSERT, + } mode; + uint8_t color; + uint8_t shift; +} input; -static void readInput(void) { - int c = getch(); - switch (input.mode) { - break; case MODE_NORMAL: inputNormal(c); - break; case MODE_MAP: inputMap(); - break; case MODE_INSERT: inputInsert(c); - break; case MODE_REPLACE: inputReplace(c); - break; case MODE_PUT: inputPut(c); - break; case MODE_DRAW: inputDraw(c); - } -} +static struct { + int8_t dx; + int8_t dy; + uint8_t len; +} insert; -static void serverPut(uint8_t x, uint8_t y, uint8_t color, char cell) { - mvaddch(y, x, colorAttr(color) | cell); +static void insertMode(int8_t dx, int8_t dy) { + input.mode = MODE_INSERT; + insert.dx = dx; + insert.dy = dy; + insert.len = 0; } -static void serverTile(void) { - struct Tile tile; - ssize_t size = recv(client, &tile, sizeof(tile), 0); - if (size < 0) err(EX_IOERR, "recv"); - if ((size_t)size < sizeof(tile)) { - errx(EX_PROTOCOL, "This tile isn't big enough..."); - } - - for (int y = 0; y < CELL_ROWS; ++y) { - for (int x = 0; x < CELL_COLS; ++x) { - serverPut(x, y, tile.colors[y][x], tile.cells[y][x]); - } - } +static void inputFg(uint8_t fg) { + input.color = (input.color & 0x78) | (fg & 0x07); +} +static void inputBg(uint8_t bg) { + input.color = (input.color & 0x0F) | (bg & 0x07) << 4; +} +static void inputInvert(void) { + input.color = (input.color & 0x08) + | (input.color & 0x70) >> 4 + | (input.color & 0x07) << 4; } -static void serverCursor(uint8_t oldX, uint8_t oldY, uint8_t newX, uint8_t newY) { - if (oldX != CURSOR_NONE) { - move(oldY, oldX); - addch(inch() & ~A_REVERSE); - } - if (newX != CURSOR_NONE) { - move(newY, newX); - addch(inch() | A_REVERSE); +static uint8_t inputCell(wchar_t ch) { + if (ch < 0x7F) return (uint8_t)ch + input.shift; + for (size_t i = 0; i < ARRAY_LEN(CP437); ++i) { + if (ch == CP437[i]) return i; } + return 0; } -static WINDOW *mapFrame; -static WINDOW *mapWindow; - -static const char MAP_CELLS[] = " -~=+:$%#"; -static const uint8_t MAP_COLORS[] = { - COLOR_BLUE, COLOR_BRIGHT | COLOR_BLUE, - COLOR_CYAN, COLOR_BRIGHT | COLOR_CYAN, - COLOR_GREEN, COLOR_BRIGHT | COLOR_GREEN, - COLOR_YELLOW, COLOR_BRIGHT | COLOR_YELLOW, - COLOR_RED, COLOR_BRIGHT | COLOR_RED, - COLOR_MAGENTA, COLOR_BRIGHT | COLOR_MAGENTA, - COLOR_WHITE, COLOR_BRIGHT | COLOR_WHITE, -}; - -static void serverMap(void) { - struct Map map; - ssize_t size = recv(client, &map, sizeof(map), 0); - if (size < 0) err(EX_IOERR, "recv"); - if ((size_t)size < sizeof(map)) errx(EX_PROTOCOL, "This map is incomplete..."); - - uint32_t countMax = 0; - time_t timeNow = time(NULL); - time_t timeMin = timeNow; - for (int y = 0; y < MAP_ROWS; ++y) { - for (int x = 0; x < MAP_COLS; ++x) { - struct Meta meta = map.meta[y][x]; - if (countMax < meta.modifyCount) countMax = meta.modifyCount; - if (meta.modifyTime && timeMin > meta.modifyTime) { - timeMin = meta.modifyTime; - } +static void inputNormal(bool keyCode, wchar_t ch) { + if (keyCode) { + switch (ch) { + break; case KEY_LEFT: clientMove(-1, 0); + break; case KEY_RIGHT: clientMove( 1, 0); + break; case KEY_UP: clientMove( 0, -1); + break; case KEY_DOWN: clientMove( 0, 1); } + return; } - for (int y = 0; y < MAP_ROWS; ++y) { - for (int x = 0; x < MAP_COLS; ++x) { - struct Meta meta = map.meta[y][x]; - - double count = (meta.modifyCount && countMax > 1) - ? log(meta.modifyCount) / log(countMax) - : 0.0; - double time = (meta.modifyTime && timeNow - timeMin) - ? (double)(meta.modifyTime - timeMin) / (double)(timeNow - timeMin) - : 0.0; - count *= ARRAY_LEN(MAP_CELLS) - 2; - time *= ARRAY_LEN(MAP_COLORS) - 1; - - char cell = MAP_CELLS[(int)round(count)]; - chtype attr = colorAttr(MAP_COLORS[(int)round(time)]); - if (y == MAP_ROWS / 2 && x == MAP_COLS / 2) { - attr |= A_REVERSE; - } + switch (ch) { + break; case ESC: input.mode = MODE_NORMAL; + break; case 'q': endwin(); exit(EX_OK); - wmove(mapWindow, y, 3 * x); - waddch(mapWindow, attr | cell); - waddch(mapWindow, attr | cell); - waddch(mapWindow, attr | cell); - } - } + break; case 'h': clientMove(-1, 0); + break; case 'l': clientMove( 1, 0); + break; case 'k': clientMove( 0, -1); + break; case 'j': clientMove( 0, 1); + break; case 'y': clientMove(-1, -1); + break; case 'u': clientMove( 1, -1); + break; case 'b': clientMove(-1, 1); + break; case 'n': clientMove( 1, 1); + + break; case '0': inputFg(COLOR_BLACK); + break; case '1': inputFg(COLOR_RED); + break; case '2': inputFg(COLOR_GREEN); + break; case '3': inputFg(COLOR_YELLOW); + break; case '4': inputFg(COLOR_BLUE); + break; case '5': inputFg(COLOR_MAGENTA); + break; case '6': inputFg(COLOR_CYAN); + break; case '7': inputFg(COLOR_WHITE); + + break; case ')': inputBg(COLOR_BLACK); + break; case '!': inputBg(COLOR_RED); + break; case '@': inputBg(COLOR_GREEN); + break; case '#': inputBg(COLOR_YELLOW); + break; case '$': inputBg(COLOR_BLUE); + break; case '%': inputBg(COLOR_MAGENTA); + break; case '^': inputBg(COLOR_CYAN); + break; case '&': inputBg(COLOR_WHITE); + + break; case '8': case '*': input.color ^= COLOR_BRIGHT; + break; case '9': case '(': inputInvert(); + + break; case CTRL('P'): input.shift -= 0x20; + break; case CTRL('N'): input.shift += 0x20; - input.mode = MODE_MAP; - curs_set(0); + break; case 'i': insertMode(1, 0); + break; case 'a': clientMove(1, 0); insertMode(1, 0); + } } -static void readMessage(void) { - struct ServerMessage msg; - ssize_t size = recv(client, &msg, sizeof(msg), 0); - if (size < 0) err(EX_IOERR, "recv"); - if ((size_t)size < sizeof(msg)) errx(EX_PROTOCOL, "A message was cut short."); - - int sy, sx; - getyx(stdscr, sy, sx); - switch (msg.type) { - break; case SERVER_TILE: serverTile(); - break; case SERVER_MOVE: move(msg.move.cellY, msg.move.cellX); return; - break; case SERVER_PUT: { - serverPut( - msg.put.cellX, - msg.put.cellY, - msg.put.color, - msg.put.cell - ); +static void inputInsert(bool keyCode, wchar_t ch) { + if (keyCode) { + inputNormal(keyCode, ch); + return; + } + switch (ch) { + break; case ESC: { + input.mode = MODE_NORMAL; + clientMove(-insert.dx, -insert.dy); } - break; case SERVER_CURSOR: { - serverCursor( - msg.cursor.oldCellX, - msg.cursor.oldCellY, - msg.cursor.newCellX, - msg.cursor.newCellY - ); + break; case '\b': case DEL: { + clientMove(-insert.dx, -insert.dy); + clientPut(input.color, ' '); + insert.len--; } - break; case SERVER_MAP: serverMap(); - break; default: errx(EX_PROTOCOL, "I don't know what %d means!", msg.type); - } - move(sy, sx); -} + break; case '\n': { + clientMove(insert.dy, insert.dx); + clientMove(insert.len * -insert.dx, insert.len * -insert.dy); + insert.len = 0; + } + break; default: { + if (iswcntrl(ch)) { + inputNormal(false, ch); + break; + } -static void draw(void) { - wnoutrefresh(stdscr); - if (input.mode == MODE_MAP) { - touchwin(mapFrame); - touchwin(mapWindow); - wnoutrefresh(mapFrame); - wnoutrefresh(mapWindow); + uint8_t cell = inputCell(ch); + if (!cell) break; + clientPut(input.color, cell); + clientMove(insert.dx, insert.dy); + insert.len++; + } } - doupdate(); } -static void curse(void) { - initscr(); - cbreak(); - noecho(); - keypad(stdscr, true); - set_escdelay(100); - - if (!has_colors()) { - endwin(); - fprintf( - stderr, - "Sorry, your terminal doesn't support colors!\n" - "If you think it does, check TERM.\n" - ); - exit(EX_CONFIG); - } - start_color(); - if (COLOR_PAIRS < 64) { - endwin(); - fprintf( - stderr, - "Sorry, your terminal doesn't support enough color pairs!\n" - "If you think it does, check TERM.\n" - ); - exit(EX_CONFIG); - } - colorPairs(); - - if (LINES < CELL_ROWS || COLS < CELL_COLS) { - endwin(); - fprintf(stderr, "Sorry, your terminal is too small!\n"); - fprintf(stderr, "It needs to be at least 80x25 characters.\n"); - exit(EX_CONFIG); - } - - attrset(colorAttr(COLOR_WHITE)); - if (LINES > CELL_ROWS) { - mvhline(CELL_ROWS, 0, 0, CELL_COLS); - } - if (COLS > CELL_COLS) { - mvvline(0, CELL_COLS, 0, CELL_ROWS); - } - if (LINES > CELL_ROWS && COLS > CELL_COLS) { - mvaddch(CELL_ROWS, CELL_COLS, ACS_LRCORNER); +static void readInput(void) { + wint_t ch; + bool keyCode = (KEY_CODE_YES == get_wch(&ch)); + switch (input.mode) { + break; case MODE_NORMAL: inputNormal(keyCode, ch); + break; case MODE_INSERT: inputInsert(keyCode, ch); } - attrset(A_NORMAL); - - mapFrame = newwin( - MAP_ROWS + 2, - 3 * MAP_COLS + 2, - CELL_INIT_Y - MAP_ROWS / 2 - 1, - CELL_INIT_X - 3 * MAP_COLS / 2 - 1 - ); - mapWindow = newwin( - MAP_ROWS, - 3 * MAP_COLS, - CELL_INIT_Y - MAP_ROWS / 2, - CELL_INIT_X - 3 * MAP_COLS / 2 - ); - wattrset(mapFrame, colorAttr(COLOR_WHITE)); - box(mapFrame, 0, 0); } int main() { @@ -515,6 +338,7 @@ int main() { if (fds[0].revents) readInput(); if (fds[1].revents) readMessage(); - draw(); + + refresh(); } } |