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Strategická: Init c++ klienta

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Jiří Kalvoda 2 years ago
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  1. 203
      klient/client.cpp
  2. 471
      klient/jsmn.h

203
klient/client.cpp
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#include "jsmn.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vector>
#include <cassert>
using std::vector;
// Parsování JSONu
static int jsoneq(const char *json, jsmntok_t *tok, const char *s) {
if (tok->type == JSMN_STRING && (int)strlen(s) == tok->end - tok->start &&
strncmp(json + tok->start, s, tok->end - tok->start) == 0) {
return 0;
}
return -1;
}
// Třídy reprezentující hru
enum Direction
{
STAY = -1,
UP = 0,
LEFT = 1,
DOWN = 2,
RIGHT = 3,
};
struct Team;
struct Member;
struct Field;
struct Team
{
int id;
bool is_me;
Field* home;
vector<Field*> occupied;
vector<Field*> protected_fields;
vector<Member*> members;
Team(int _id, bool _is_me)
{
id = id;
is_me = _is_me;
}
};
struct Member
{
Field * field;
Team * team;
int id;
Direction action = STAY;
Member(Field *_field)
{
field = _field;
}
};
struct Field
{
int i,j;
bool hill;
Team* home_for_team = NULL;
Team* occupied_by_team = NULL;
Team* protected_for_team = NULL;
vector<Member*> members;
Field(int _i, int _j)
{
i = _i;
j = _j;
}
};
// Celý stav hry včetně parsování a vypisování
struct State
{
// Dealokace paměti není implementována, protože předpokládáme, že program
// poběží jen krátce a po ukončení všechna paměť automaticky zanikne.
vector<Team*> teams;
vector<vector<Field*>> world;
Team * my_team;
int round_number;
int time_to_response;
int js_skip(jsmntok_t* t, int i)
{
int s = t[i].size;
i++;
for(int j=0; j<s; j++)
i = js_skip(t, i);
return i;
}
State(char * input_str)
{
int r;
jsmn_parser p;
jsmntok_t t[10000]; /* We expect no more than this count of tokens (jsmn limitation)*/
jsmn_init(&p);
r = jsmn_parse(&p, input_str, strlen(input_str), t,
sizeof(t) / sizeof(t[0]));
assert(!(r < 0));
assert(!(r < 1 || t[0].type != JSMN_OBJECT));
int teams_count, team_id;
int state_tok, world_tok;
for (int i = 1, c=0; c < t[0].size;i = js_skip(t, i), c++)
{
//printf("- %.*s %d\n", t[i].end - t[i].start, input_str + t[i].start, t[i].size);
if (jsoneq(input_str, &t[i], "teams_count") == 0)
teams_count = atoi(input_str + t[i+1].start);
if (jsoneq(input_str, &t[i], "team_id") == 0)
team_id = atoi(input_str + t[i+1].start);
if (jsoneq(input_str, &t[i], "time_to_response") == 0)
time_to_response = atoi(input_str + t[i+1].start);
if (jsoneq(input_str, &t[i], "round_number") == 0)
round_number = atoi(input_str + t[i+1].start);
if (jsoneq(input_str, &t[i], "state") == 0)
state_tok = i+1;
;
}
assert(state_tok);
printf("%d", teams_count);
for(int i=0; i<teams_count; i++)
{
teams.push_back(new Team(i, i==team_id));
}
for (int i = state_tok+1, c=0; c < t[state_tok].size;i = js_skip(t, i), c++)
{
if (jsoneq(input_str, &t[i], "world") == 0)
world_tok = i+1;
;
}
assert(world_tok);
for (int i = world_tok+1, x=0; x < t[world_tok].size;i = js_skip(t, i), x++)
{
vector<Field *> current_row;
for (int j = i+1, y=0; y < t[i].size;j = js_skip(t, j), y++)
{
Field *current_field = new Field(x,y);
int members_tok;
for (int k = j+1, c=0; c < t[j].size;k = js_skip(t, k), c++)
{
if (jsoneq(input_str, &t[k], "hill") == 0)
current_field->hill = input_str[t[k+1].start] == 't';
if (jsoneq(input_str, &t[k], "home_for_team") == 0)
if(input_str[t[k+1].start] != 'n')
current_field->home_for_team = teams[atoi(input_str+t[k+1].start)];
if (jsoneq(input_str, &t[k], "occupied_by_team") == 0)
if(input_str[t[k+1].start] != 'n')
current_field->occupied_by_team = teams[atoi(input_str+t[k+1].start)];
if (jsoneq(input_str, &t[k], "protected_for_team") == 0)
if(input_str[t[k+1].start] != 'n')
current_field->protected_for_team = teams[atoi(input_str+t[k+1].start)];
if (jsoneq(input_str, &t[k], "members") == 0)
members_tok = k+1;
}
for (int k = members_tok+1, c=0; c < t[members_tok].size;k = js_skip(t, k), c++)
{
auto m = new Member(current_field);
for (int l = k+1, d=0; d < t[k].size;l = js_skip(t, l), d++)
{
// printf("%d %d: %.*s %d\n", x,y, t[l].end - t[l].start, input_str + t[l].start, t[l].size);
if (jsoneq(input_str, &t[l], "id") == 0)
m->id = atoi(input_str + t[l+1].start);
if (jsoneq(input_str, &t[l], "team") == 0)
m->team = teams[atoi(input_str+t[l+1].start)];
}
current_field->members.push_back(m);
}
current_row.push_back(current_field);
}
world.push_back(current_row);
}
}
};
State* state;
// Algoritmy
// main (zde doplňte kód)
void load()
{
char * input_str;
scanf("%m[^\n]", &input_str);
state = new State(input_str);
}
int main()
{
load();
return 0;
}

471
klient/jsmn.h
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/*
* MIT License
*
* Copyright (c) 2010 Serge Zaitsev
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef JSMN_H
#define JSMN_H
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef JSMN_STATIC
#define JSMN_API static
#else
#define JSMN_API extern
#endif
/**
* JSON type identifier. Basic types are:
* o Object
* o Array
* o String
* o Other primitive: number, boolean (true/false) or null
*/
typedef enum {
JSMN_UNDEFINED = 0,
JSMN_OBJECT = 1 << 0,
JSMN_ARRAY = 1 << 1,
JSMN_STRING = 1 << 2,
JSMN_PRIMITIVE = 1 << 3
} jsmntype_t;
enum jsmnerr {
/* Not enough tokens were provided */
JSMN_ERROR_NOMEM = -1,
/* Invalid character inside JSON string */
JSMN_ERROR_INVAL = -2,
/* The string is not a full JSON packet, more bytes expected */
JSMN_ERROR_PART = -3
};
/**
* JSON token description.
* type type (object, array, string etc.)
* start start position in JSON data string
* end end position in JSON data string
*/
typedef struct jsmntok {
jsmntype_t type;
int start;
int end;
int size;
#ifdef JSMN_PARENT_LINKS
int parent;
#endif
} jsmntok_t;
/**
* JSON parser. Contains an array of token blocks available. Also stores
* the string being parsed now and current position in that string.
*/
typedef struct jsmn_parser {
unsigned int pos; /* offset in the JSON string */
unsigned int toknext; /* next token to allocate */
int toksuper; /* superior token node, e.g. parent object or array */
} jsmn_parser;
/**
* Create JSON parser over an array of tokens
*/
JSMN_API void jsmn_init(jsmn_parser *parser);
/**
* Run JSON parser. It parses a JSON data string into and array of tokens, each
* describing
* a single JSON object.
*/
JSMN_API int jsmn_parse(jsmn_parser *parser, const char *js, const size_t len,
jsmntok_t *tokens, const unsigned int num_tokens);
#ifndef JSMN_HEADER
/**
* Allocates a fresh unused token from the token pool.
*/
static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser, jsmntok_t *tokens,
const size_t num_tokens) {
jsmntok_t *tok;
if (parser->toknext >= num_tokens) {
return NULL;
}
tok = &tokens[parser->toknext++];
tok->start = tok->end = -1;
tok->size = 0;
#ifdef JSMN_PARENT_LINKS
tok->parent = -1;
#endif
return tok;
}
/**
* Fills token type and boundaries.
*/
static void jsmn_fill_token(jsmntok_t *token, const jsmntype_t type,
const int start, const int end) {
token->type = type;
token->start = start;
token->end = end;
token->size = 0;
}
/**
* Fills next available token with JSON primitive.
*/
static int jsmn_parse_primitive(jsmn_parser *parser, const char *js,
const size_t len, jsmntok_t *tokens,
const size_t num_tokens) {
jsmntok_t *token;
int start;
start = parser->pos;
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
switch (js[parser->pos]) {
#ifndef JSMN_STRICT
/* In strict mode primitive must be followed by "," or "}" or "]" */
case ':':
#endif
case '\t':
case '\r':
case '\n':
case ' ':
case ',':
case ']':
case '}':
goto found;
default:
/* to quiet a warning from gcc*/
break;
}
if (js[parser->pos] < 32 || js[parser->pos] >= 127) {
parser->pos = start;
return JSMN_ERROR_INVAL;
}
}
#ifdef JSMN_STRICT
/* In strict mode primitive must be followed by a comma/object/array */
parser->pos = start;
return JSMN_ERROR_PART;
#endif
found:
if (tokens == NULL) {
parser->pos--;
return 0;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
parser->pos = start;
return JSMN_ERROR_NOMEM;
}
jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
parser->pos--;
return 0;
}
/**
* Fills next token with JSON string.
*/
static int jsmn_parse_string(jsmn_parser *parser, const char *js,
const size_t len, jsmntok_t *tokens,
const size_t num_tokens) {
jsmntok_t *token;
int start = parser->pos;
/* Skip starting quote */
parser->pos++;
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
char c = js[parser->pos];
/* Quote: end of string */
if (c == '\"') {
if (tokens == NULL) {
return 0;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
parser->pos = start;
return JSMN_ERROR_NOMEM;
}
jsmn_fill_token(token, JSMN_STRING, start + 1, parser->pos);
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
return 0;
}
/* Backslash: Quoted symbol expected */
if (c == '\\' && parser->pos + 1 < len) {
int i;
parser->pos++;
switch (js[parser->pos]) {
/* Allowed escaped symbols */
case '\"':
case '/':
case '\\':
case 'b':
case 'f':
case 'r':
case 'n':
case 't':
break;
/* Allows escaped symbol \uXXXX */
case 'u':
parser->pos++;
for (i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0';
i++) {
/* If it isn't a hex character we have an error */
if (!((js[parser->pos] >= 48 && js[parser->pos] <= 57) || /* 0-9 */
(js[parser->pos] >= 65 && js[parser->pos] <= 70) || /* A-F */
(js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
parser->pos = start;
return JSMN_ERROR_INVAL;
}
parser->pos++;
}
parser->pos--;
break;
/* Unexpected symbol */
default:
parser->pos = start;
return JSMN_ERROR_INVAL;
}
}
}
parser->pos = start;
return JSMN_ERROR_PART;
}
/**
* Parse JSON string and fill tokens.
*/
JSMN_API int jsmn_parse(jsmn_parser *parser, const char *js, const size_t len,
jsmntok_t *tokens, const unsigned int num_tokens) {
int r;
int i;
jsmntok_t *token;
int count = parser->toknext;
for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
char c;
jsmntype_t type;
c = js[parser->pos];
switch (c) {
case '{':
case '[':
count++;
if (tokens == NULL) {
break;
}
token = jsmn_alloc_token(parser, tokens, num_tokens);
if (token == NULL) {
return JSMN_ERROR_NOMEM;
}
if (parser->toksuper != -1) {
jsmntok_t *t = &tokens[parser->toksuper];
#ifdef JSMN_STRICT
/* In strict mode an object or array can't become a key */
if (t->type == JSMN_OBJECT) {
return JSMN_ERROR_INVAL;
}
#endif
t->size++;
#ifdef JSMN_PARENT_LINKS
token->parent = parser->toksuper;
#endif
}
token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
token->start = parser->pos;
parser->toksuper = parser->toknext - 1;
break;
case '}':
case ']':
if (tokens == NULL) {
break;
}
type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
#ifdef JSMN_PARENT_LINKS
if (parser->toknext < 1) {
return JSMN_ERROR_INVAL;
}
token = &tokens[parser->toknext - 1];
for (;;) {
if (token->start != -1 && token->end == -1) {
if (token->type != type) {
return JSMN_ERROR_INVAL;
}
token->end = parser->pos + 1;
parser->toksuper = token->parent;
break;
}
if (token->parent == -1) {
if (token->type != type || parser->toksuper == -1) {
return JSMN_ERROR_INVAL;
}
break;
}
token = &tokens[token->parent];
}
#else
for (i = parser->toknext - 1; i >= 0; i--) {
token = &tokens[i];
if (token->start != -1 && token->end == -1) {
if (token->type != type) {
return JSMN_ERROR_INVAL;
}
parser->toksuper = -1;
token->end = parser->pos + 1;
break;
}
}
/* Error if unmatched closing bracket */
if (i == -1) {
return JSMN_ERROR_INVAL;
}
for (; i >= 0; i--) {
token = &tokens[i];
if (token->start != -1 && token->end == -1) {
parser->toksuper = i;
break;
}
}
#endif
break;
case '\"':
r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
if (r < 0) {
return r;
}
count++;
if (parser->toksuper != -1 && tokens != NULL) {
tokens[parser->toksuper].size++;
}
break;
case '\t':
case '\r':
case '\n':
case ' ':
break;
case ':':
parser->toksuper = parser->toknext - 1;
break;
case ',':
if (tokens != NULL && parser->toksuper != -1 &&
tokens[parser->toksuper].type != JSMN_ARRAY &&
tokens[parser->toksuper].type != JSMN_OBJECT) {
#ifdef JSMN_PARENT_LINKS
parser->toksuper = tokens[parser->toksuper].parent;
#else
for (i = parser->toknext - 1; i >= 0; i--) {
if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT) {
if (tokens[i].start != -1 && tokens[i].end == -1) {
parser->toksuper = i;
break;
}
}
}
#endif
}
break;
#ifdef JSMN_STRICT
/* In strict mode primitives are: numbers and booleans */
case '-':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case 't':
case 'f':
case 'n':
/* And they must not be keys of the object */
if (tokens != NULL && parser->toksuper != -1) {
const jsmntok_t *t = &tokens[parser->toksuper];
if (t->type == JSMN_OBJECT ||
(t->type == JSMN_STRING && t->size != 0)) {
return JSMN_ERROR_INVAL;
}
}
#else
/* In non-strict mode every unquoted value is a primitive */
default:
#endif
r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
if (r < 0) {
return r;
}
count++;
if (parser->toksuper != -1 && tokens != NULL) {
tokens[parser->toksuper].size++;
}
break;
#ifdef JSMN_STRICT
/* Unexpected char in strict mode */
default:
return JSMN_ERROR_INVAL;
#endif
}
}
if (tokens != NULL) {
for (i = parser->toknext - 1; i >= 0; i--) {
/* Unmatched opened object or array */
if (tokens[i].start != -1 && tokens[i].end == -1) {
return JSMN_ERROR_PART;
}
}
}
return count;
}
/**
* Creates a new parser based over a given buffer with an array of tokens
* available.
*/
JSMN_API void jsmn_init(jsmn_parser *parser) {
parser->pos = 0;
parser->toknext = 0;
parser->toksuper = -1;
}
#endif /* JSMN_HEADER */
#ifdef __cplusplus
}
#endif
#endif /* JSMN_H */
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