113 lines
2.1 KiB
C
113 lines
2.1 KiB
C
#include "snake.h"
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#include <stdlib.h>
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#include <curses.h>
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//void freeAll(struct snake* prvok);
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struct snake* add_snake(struct snake* snake,int x,int y){
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struct snake* head = calloc(1,sizeof(struct snake));
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head->x = x;
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head->y = y;
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head->next = snake;
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return head;
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}
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struct snake* remove_snake(struct snake* snake){
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if(!snake->next&&!snake)
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return NULL;
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struct snake* last = snake;
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struct snake* secondLast = snake;
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while(1){
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if(!last->next){
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free(last);
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secondLast->next=NULL;
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return snake;
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}
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secondLast=last;
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last=last->next;
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}
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}
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void free_snake(struct snake* sn){
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struct snake* this = sn;
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while(this){
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struct snake* next = this->next;
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free(this);
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this = next;
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}
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}
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/*
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void freeAll(struct snake* prvok){
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if(!prvok)
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break;
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else if(prvok->next)
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freeAll(prvok->next);
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free(prvok);
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}*/
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int is_snake(struct snake* snake,int x,int y){
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struct snake* this = snake;
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while(this){
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if(this->x==x && this->y==y)
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return 1;
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this = this->next;
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}
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return 0;
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}
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//Spojkový zoznam =============================> celá hra
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int step_state(struct state* st){
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int nx = (st->snake->x + st->sx);
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int ny = (st->snake->y + st->sy);
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if(is_snake(st->snake,nx, ny))
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return END_SNAKE;
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//
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for(int i = 0;i < FOOD_COUNT; i++){
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if(nx==st->foodx[i]&&ny==st->foody[i]){
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st->foody[i]=-1;
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st->foodx[i]=-1;
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add_snake(st->snake, nx, ny);
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}
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}
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int is_all_eaten=1;
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for(int i = 0;i < FOOD_COUNT; i++){
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if(st->foodx[i]>=0){
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is_all_eaten = 0;
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break;
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}
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}
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if(is_all_eaten)
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return END_FOOD;
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//
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if(nx<0||ny<0||nx>=COLS||ny>=LINES)
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return END_WALL;
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//
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if(st->snake->x != nx && st->snake->y != ny){
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remove_snake(st->snake);
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add_snake(st->snake, nx, ny);
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}
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return END_CONTINUE;
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}
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