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/* Copyright (C) 2017 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <stdalign.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <time.h>
#include <wchar.h>
#define ARRAY_LEN(a) (sizeof(a) / sizeof((a)[0]))
#undef COLOR_BLACK
#undef COLOR_RED
#undef COLOR_GREEN
#undef COLOR_YELLOW
#undef COLOR_BLUE
#undef COLOR_MAGENTA
#undef COLOR_CYAN
#undef COLOR_WHITE
enum {
COLOR_BLACK,
COLOR_RED,
COLOR_GREEN,
COLOR_YELLOW,
COLOR_BLUE,
COLOR_MAGENTA,
COLOR_CYAN,
COLOR_WHITE,
COLOR_BRIGHT,
};
static const wchar_t CP437[256] = (
L" ☺☻♥♦♣♠•◘○◙♂♀♪♫☼"
L"►◄↕‼¶§▬↨↑↓→←∟↔▲▼"
L" !\"#$%&'()*+,-./"
L"0123456789:;<=>?"
L"@ABCDEFGHIJKLMNO"
L"PQRSTUVWXYZ[\\]^_"
L"`abcdefghijklmno"
L"pqrstuvwxyz{|}~⌂"
L"ÇüéâäàåçêëèïîìÄÅ"
L"ÉæÆôöòûùÿÖÜ¢£¥₧ƒ"
L"áíóúñѪº¿⌐¬½¼¡«»"
L"░▒▓│┤╡╢╖╕╣║╗╝╜╛┐"
L"└┴┬├─┼╞╟╚╔╩╦╠═╬╧"
L"╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀"
L"αßΓπΣσµτΦΘΩδ∞φε∩"
L"≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
);
enum {
CELL_ROWS = 24,
CELL_COLS = 80,
};
static const size_t CELLS_SIZE = sizeof(uint8_t[CELL_ROWS][CELL_COLS]);
static const uint8_t CELL_INIT_X = CELL_COLS / 2;
static const uint8_t CELL_INIT_Y = CELL_ROWS / 2;
struct Meta {
time_t createTime;
time_t modifyTime;
time_t accessTime;
uint32_t modifyCount;
uint32_t accessCount;
};
struct Tile {
alignas(4096) uint8_t cells[CELL_ROWS][CELL_COLS];
uint8_t colors[CELL_ROWS][CELL_COLS];
struct Meta meta;
};
static_assert(4096 == sizeof(struct Tile), "struct Tile is page-sized");
enum {
TILE_ROWS = 64,
TILE_COLS = 64,
};
static const size_t TILES_SIZE = sizeof(struct Tile[TILE_ROWS][TILE_COLS]);
static const uint32_t TILE_INIT_X = TILE_COLS / 2;
static const uint32_t TILE_INIT_Y = TILE_ROWS / 2;
enum {
MAP_ROWS = 11,
MAP_COLS = 11,
};
struct Map {
struct Meta meta[MAP_ROWS][MAP_COLS];
};
struct ServerMessage {
enum {
SERVER_TILE,
SERVER_MOVE,
SERVER_PUT,
SERVER_CURSOR,
SERVER_MAP,
} type;
union {
struct {
uint8_t cellX;
uint8_t cellY;
} move;
struct {
uint8_t cellX;
uint8_t cellY;
uint8_t color;
uint8_t cell;
} put;
struct {
uint8_t oldCellX;
uint8_t oldCellY;
uint8_t newCellX;
uint8_t newCellY;
} cursor;
};
};
static const uint8_t CURSOR_NONE = UINT8_MAX;
struct ClientMessage {
enum {
CLIENT_MOVE,
CLIENT_FLIP,
CLIENT_PUT,
CLIENT_MAP,
} type;
union {
struct {
int8_t dx;
int8_t dy;
} move;
struct {
uint8_t color;
uint8_t cell;
} put;
};
};
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