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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]))
enum {
ColorBlack,
ColorRed,
ColorGreen,
ColorYellow,
ColorBlue,
ColorMagenta,
ColorCyan,
ColorWhite,
ColorBright,
};
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 {
CellRows = 24,
CellCols = 80,
};
static const size_t CellsSize = sizeof(uint8_t[CellRows][CellCols]);
static const uint8_t CellInitX = CellCols / 2;
static const uint8_t CellInitY = CellRows / 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[CellRows][CellCols];
uint8_t colors[CellRows][CellCols];
struct Meta meta;
};
static_assert(4096 == sizeof(struct Tile), "struct Tile is page-sized");
enum {
TileRows = 64,
TileCols = 64,
};
static const size_t TilesSize = sizeof(struct Tile[TileRows][TileCols]);
static const uint32_t TileInitX = TileCols / 2;
static const uint32_t TileInitY = TileRows / 2;
enum {
MapRows = 7,
MapCols = 7,
};
struct Map {
time_t now;
struct Meta min;
struct Meta max;
struct Meta meta[MapRows][MapCols];
};
struct ServerMessage {
enum {
ServerTile,
ServerMove,
ServerPut,
ServerCursor,
ServerMap,
} 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 CursorNone = UINT8_MAX;
struct ClientMessage {
enum {
ClientMove,
ClientFlip,
ClientPut,
ClientMap,
} type;
union {
struct {
int8_t dx;
int8_t dy;
} move;
struct {
uint8_t color;
uint8_t cell;
} put;
};
};
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