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fgets.c
647 lines (557 loc) · 19.4 KB
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fgets.c
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/* fill, repeat */
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include <ctype.h>
#include "graphics.h"
enum {
MAZE_BLANK,
MAZE_WALL,
MAZE_KEY,
MAZE_NOKEY,
MAZE_DOOR,
MAZE_FINISH
};
struct sq_t {
unsigned type : 4;
unsigned ex : 1;
char data;
};
struct maze_t {
unsigned exists : 2;
int xp, yp;
struct sq_t sq[80][22];
} maze[13];
void main_screen(void);
void start_game(char *fn);
void start_edit(char *fn);
int read_in_mazes(FILE *fp);
void clear_mazes(void);
void play_game(void);
void play_move(int x, int y);
void edit_game(FILE *fp);
void message(char *s);
void chomp(char *s);
int main(void) {
main_screen();
clear_screen();
cursor(0, 0);
printf("Thanks for playing tmaze! :)\n");
return 0;
}
void main_screen(void) {
int c, quit = 0;
char file[70];
size_t filelen = 0;
file[0] = 0;
while(!quit) {
clear_screen();
cursor_on();
cursor(30, 1);
printf("TMAZE by DWK");
cursor(5, 20);
printf("%s", file);
switch((c=getch())) {
case 0: /* extended key */
switch((c=getch())) {
/*case 72: /* up */
}
/*cursor(0, 1);
printf("%3i", c);*/
break;
case 27: quit = 1; break; /* esc */
case '\b':
if(filelen > 0) {
file[--filelen] = 0;
}
break;
case '\r':
start_game(file);
break;
case 10: /* ctrl-enter */
start_edit(file);
break;
default:
if(isprint(c) && filelen < 70) {
file[filelen++] = c;
file[filelen] = 0;
}
}
}
}
void start_game(char *fn) {
char s[20];
FILE *fp;
if((fp=fopen(fn, "rt")) == NULL) {
message("Can't open file");
return;
}
fgets(s, sizeof(s), fp);
chomp(s);
if(strcmp(s, "TMAZE")) {
message("Invalid map file (doesn't have signature)");
return;
}
if(read_in_mazes(fp)) {
fclose(fp);
return;
}
play_game();
fclose(fp);
}
void start_edit(char *fn) {
char s[20];
FILE *fp;
if((fp=fopen(fn, "r+t")) == NULL) {
message("Creating new map");
clear_mazes();
}
else {
fgets(s, sizeof(s), fp);
chomp(s);
if(strcmp(s, "TMAZE")) {
message("Invalid map file (doesn't have signature)");
return;
}
if(read_in_mazes(fp)) {
fclose(fp);
return;
}
fclose(fp);
}
if((fp=fopen(fn, "wt")) == NULL) {
message("Can't make file");
return;
}
edit_game(fp);
fclose(fp);
}
int read_in_mazes(FILE *fp) {
char c;
int x, y, z, m;
for(z = 0; z < 13; z ++) {
maze[z].exists = 0;
maze[z].xp = maze[z].yp = 0;
for(x = 0; x < 80; x ++) {
for(y = 0; y < 22; y ++) {
maze[z].sq[x][y].type = MAZE_BLANK;
}
}
}
clear_screen();
cursor_on();
cursor(0, 0);
printf("\nLoading file . . .");
while(!feof(fp)) {
c = getc(fp);
if(feof(fp)) break;
if((x=getc(fp)) != '\n') {
printf("Expected '\\n', found '%c'", x);
getch();
return 1;
}
m = (isupper(c)?c-'A':c-'a'+26);
maze[m].exists = 1;
for(x = y = 0; y < 22; ) {
c = getc(fp);
if(feof(fp)) break;
if(x >= 80 && c != '\n') continue;
if(c == '.') maze[m].sq[x][y].type = MAZE_WALL;
else if(c == ' ') ;
else if(c == '+') {
maze[m].sq[x][y].type = MAZE_KEY;
c = getc(fp);
maze[m].sq[x][y].data = (isupper(c)?c-'A':c-'a'+26);
}
else if(c == '-') {
maze[m].sq[x][y].type = MAZE_DOOR;
c = getc(fp);
maze[m].sq[x][y].data = (isupper(c)?c-'A':c-'a'+26);
}
else if(c == '>') {
maze[m].sq[x][y].type = MAZE_FINISH;
c = getc(fp);
maze[m].sq[x][y].data = (c=='>'?-1:(isupper(c)?c-'A':c-'a'+26));
}
else if(isspace(c)) ;
else if(c == ':') {
maze[m].xp = x, maze[m].yp = y;
}
if(c == '\n') y ++, x = 0;
else x ++;
}
}
return 0;
}
void clear_mazes(void) {
char c;
int x, y, z, m;
for(z = 0; z < 13; z ++) {
maze[z].exists = 0;
maze[z].xp = maze[z].yp = 0;
for(x = 0; x < 80; x ++) {
for(y = 0; y < 22; y ++) {
maze[z].sq[x][y].type = MAZE_BLANK;
}
}
}
}
void play_game(void) {
int quit = 0, key[52], m = 0;
int x, y, z, c, xp, yp;
while(!quit && m >= 0) {
xp = maze[m].xp, yp = maze[m].yp;
for(x = 0; x < 52; x ++) key[x] = 0;
for(x = 0; x < 80; x ++) {
for(y = 0; y < 22; y ++) {
maze[m].sq[x][y].ex = 0;
}
}
clear_screen();
cursor(0, 0);
for(x = 0; x < 80; x ++) {
printf("\260\260\260\260\260\260\260\260\260\260"
"\260\260\260\260\260\260\260\260\260\260\260\260");
}
cursor_off();
while(!quit) {
cursor(0, 0);
if(xp > 0) maze[m].sq[xp-1][yp].ex = 1;
if(yp > 0) maze[m].sq[xp][yp-1].ex = 1;
if(xp < 79) maze[m].sq[xp+1][yp].ex = 1;
if(yp < 21) maze[m].sq[xp][yp+1].ex = 1;
if(xp > 0 && yp > 0) maze[m].sq[xp-1][yp-1].ex = 1;
if(xp > 0 && yp < 21) maze[m].sq[xp-1][yp+1].ex = 1;
if(xp < 79 && yp > 0) maze[m].sq[xp+1][yp-1].ex = 1;
if(xp < 79 && yp < 21) maze[m].sq[xp+1][yp+1].ex = 1;
z = xp-1;
if(z < 0) z = 0;
for(y = yp-1 < 0 ? 0 : yp-1; y < yp+2 && y < 22; y ++) {
cursor(z, y);
for(x = z; x < xp+2 && x < 80; x ++) {
if(x == xp && y == yp) printf("\017");
else if(maze[m].sq[x][y].ex) {
switch(maze[m].sq[x][y].type) {
case MAZE_BLANK: printf(" "); break;
case MAZE_KEY: printf("\013"); break;
case MAZE_NOKEY: printf("\372"); break;
case MAZE_DOOR: printf("\376"); break;
case MAZE_FINISH: printf("\257"); break;
default: printf("\333"); break;
}
}
}
}
switch((c=getch())) {
case 0: /* extended */
switch((c=getch())) {
case 72: /* up */
if(yp > 0) {
switch(maze[m].sq[xp][yp-1].type) {
case MAZE_FINISH:
m = maze[m].sq[xp][yp-1].data;
quit = 1;
break;
case MAZE_NOKEY:
case MAZE_BLANK: yp --; break;
case MAZE_WALL: break;
case MAZE_KEY:
yp --;
key[maze[m].sq[xp][yp].data] = 1;
maze[m].sq[xp][yp].type = MAZE_NOKEY;
break;
case MAZE_DOOR:
if(key[maze[m].sq[xp][yp-1].data]) yp --;
break;
}
}
break;
case 80: /* down */
if(yp < 21) {
switch(maze[m].sq[xp][yp+1].type) {
case MAZE_FINISH:
m = maze[m].sq[xp][yp+1].data;
quit = 1;
break;
case MAZE_NOKEY:
case MAZE_BLANK: yp ++; break;
case MAZE_WALL: break;
case MAZE_KEY:
yp ++;
key[maze[m].sq[xp][yp].data] = 1;
maze[m].sq[xp][yp].type = MAZE_NOKEY;
break;
case MAZE_DOOR:
if(key[maze[m].sq[xp][yp+1].data]) yp ++;
break;
}
}
break;
case 75: /* left */
if(xp > 0) {
switch(maze[m].sq[xp-1][yp].type) {
case MAZE_FINISH:
m = maze[m].sq[xp-1][yp].data;
quit = 1;
break;
case MAZE_NOKEY:
case MAZE_BLANK: xp --; break;
case MAZE_WALL: break;
case MAZE_KEY:
xp --;
key[maze[m].sq[xp][yp].data] = 1;
maze[m].sq[xp][yp].type = MAZE_NOKEY;
break;
case MAZE_DOOR:
if(key[maze[m].sq[xp-1][yp].data]) xp --;
break;
}
}
break;
case 77: /* right */
if(xp < 79) {
switch(maze[m].sq[xp+1][yp].type) {
case MAZE_FINISH:
m = maze[m].sq[xp+1][yp].data;
quit = 1;
break;
case MAZE_NOKEY:
case MAZE_BLANK: xp ++; break;
case MAZE_WALL: break;
case MAZE_KEY:
xp ++;
key[maze[m].sq[xp][yp].data] = 1;
maze[m].sq[xp][yp].type = MAZE_NOKEY;
break;
case MAZE_DOOR:
if(key[maze[m].sq[xp+1][yp].data]) xp ++;
break;
}
}
break;
}
break;
case 27: quit = 2; break; /* esc */
}
/*cursor(0, 24);
printf("%3i", c);*/
}
quit --;
}
cursor_on();
}
void edit_game(FILE *fp) {
int quit = 0, m = 0;
int x, y, z, a, c, xp, yp;
while(!quit && m >= 0) {
xp = maze[m].xp, yp = maze[m].yp;
clear_screen();
cursor(0, 0);
for(y = 0; y < 22; y ++) {
cursor(0, y);
for(x = 0; x < 80; x ++) {
if(x == xp && y == yp) printf("\017");
else if(x == maze[m].xp && y == maze[m].yp) printf("\001");
else {
switch(maze[m].sq[x][y].type) {
case MAZE_BLANK: printf(" "); break;
case MAZE_KEY: printf("\013"); break;
/*case MAZE_NOKEY: printf("\372"); break;*/
case MAZE_DOOR: printf("\376"); break;
case MAZE_FINISH: printf("\257"); break;
default: printf("\333"); break;
}
}
}
}
cursor_off();
while(!quit) {
cursor(0, 0);
if(xp > 0) maze[m].sq[xp-1][yp].ex = 1;
if(yp > 0) maze[m].sq[xp][yp-1].ex = 1;
if(xp < 79) maze[m].sq[xp+1][yp].ex = 1;
if(yp < 21) maze[m].sq[xp][yp+1].ex = 1;
if(xp > 0 && yp > 0) maze[m].sq[xp-1][yp-1].ex = 1;
if(xp > 0 && yp < 21) maze[m].sq[xp-1][yp+1].ex = 1;
if(xp < 79 && yp > 0) maze[m].sq[xp+1][yp-1].ex = 1;
if(xp < 79 && yp < 21) maze[m].sq[xp+1][yp+1].ex = 1;
z = xp-1;
if(z < 0) z = 0;
for(y = yp-1 < 0 ? 0 : yp-1; y < yp+2 && y < 22; y ++) {
cursor(z, y);
for(x = z; x < xp+2 && x < 80; x ++) {
if(x == xp && y == yp) printf("\017");
else if(x == maze[m].xp && y == maze[m].yp) printf("\001");
else {
switch(maze[m].sq[x][y].type) {
case MAZE_BLANK: printf(" "); break;
case MAZE_KEY: printf("\013"); break;
/*case MAZE_NOKEY: printf("\372"); break;*/
case MAZE_DOOR: printf("\376"); break;
case MAZE_FINISH: printf("\257"); break;
default: printf("\333"); break;
}
}
}
}
cursor(0, 22);
printf("MAZE %c ", m+'A');
switch(maze[m].sq[xp][yp].type) {
case MAZE_KEY:
printf("Key %c ", maze[m].sq[xp][yp].data < 26 ?
maze[m].sq[xp][yp].data + 'A'
: maze[m].sq[xp][yp].data + 'a' - 26);
break;
case MAZE_DOOR:
printf("Door %c", maze[m].sq[xp][yp].data < 26 ?
maze[m].sq[xp][yp].data + 'A'
: maze[m].sq[xp][yp].data + 'a' - 26);
break;
case MAZE_FINISH:
printf("Fin %c ", maze[m].sq[xp][yp].data < 0 ?
'>' : maze[m].sq[xp][yp].data + 'A');
break;
default: printf(" "); break;
}
switch((c=getch())) {
case 0: /* extended */
switch((c=getch())) {
case 72: /* up */
if(yp > 0) yp --;
break;
case 80: /* down */
if(yp < 21) yp ++;
break;
case 75: /* left */
if(xp > 0) xp --;
break;
case 77: /* right */
if(xp < 79) xp ++;
break;
case 15: /* shift-tab */
if(m > 0) {
m --;
quit = 1;
}
break;
}
break;
case 27: quit = 2; break; /* esc */
case ' ': maze[m].sq[xp][yp].type = MAZE_BLANK; break;
case '.': maze[m].sq[xp][yp].type = MAZE_WALL; break;
case '+':
maze[m].sq[xp][yp].type = MAZE_KEY;
while(!isalpha(c = getch())) ;
maze[m].sq[xp][yp].data = (isupper(c) ? c-'A' : c-'a'+26);
break;
case '-':
maze[m].sq[xp][yp].type = MAZE_DOOR;
while(!isalpha(c = getch())) ;
maze[m].sq[xp][yp].data = (isupper(c) ? c-'A' : c-'a'+26);
break;
case '>':
maze[m].sq[xp][yp].type = MAZE_FINISH;
c = getch();
maze[m].sq[xp][yp].data = (c>='A' && c<='M' ? c-'A' : -1);
break;
case 's':
cursor(maze[m].xp, maze[m].yp);
printf(" ");
maze[m].xp = xp, maze[m].yp = yp;
maze[m].sq[xp][yp].type = MAZE_BLANK;
break;
case 'l':
for(x = 0; x < 80; x ++) {
for(y = 0; y < 22; y ++) {
if(maze[m].sq[x][y].type == MAZE_DOOR ||
maze[m].sq[x][y].type == MAZE_KEY) {
cursor(x, y);
printf("%c", maze[m].sq[x][y].data < 26 ?
maze[m].sq[x][y].data + 'A' :
maze[m].sq[x][y].data + 'a'-26);
}
}
}
getch();
for(x = 0; x < 80; x ++) {
for(y = 0; y < 22; y ++) {
if(maze[m].sq[x][y].type == MAZE_DOOR) {
cursor(x, y);
printf("\376");
}
else if(maze[m].sq[x][y].type == MAZE_KEY) {
cursor(x, y);
printf("\013");
}
}
}
break;
case '\t':
if(m < 13) {
m ++;
quit = 1;
}
break;
}
/*cursor(0, 24);
printf("%3i", c);*/
}
quit --;
}
fputs("TMAZE\n", fp);
for(z = 0; z < 13; z ++) {
for(x = 0; x < 80; x ++) {
for(y = 0; y < 22; y ++) {
if(maze[z].sq[x][y].type != MAZE_BLANK) x = 81;
}
}
if(x > 80) {
putc(z+'A', fp);
putc('\n', fp);
for(y = 0; y < 22; y ++) {
for(a = 79; a >= 0; a --) {
if(maze[z].sq[a][y].type != MAZE_BLANK ||
(maze[z].xp == a && maze[z].yp == y)) break;
}
for(x = 0; x <= a; x ++) {
if(x == maze[z].xp && y == maze[z].yp) putc(':', fp);
else switch(maze[z].sq[x][y].type) {
case MAZE_BLANK: putc(' ', fp); break;
case MAZE_WALL: putc('.', fp); break;
case MAZE_KEY: case MAZE_NOKEY:
putc('+', fp);
putc(maze[z].sq[x][y].data < 26 ?
maze[z].sq[x][y].data + 'A' :
maze[z].sq[x][y].data + 'a'-26, fp);
break;
case MAZE_DOOR:
putc('-', fp);
putc(maze[z].sq[x][y].data < 26 ? maze[z].sq[x][y].data + 'A' :
maze[z].sq[x][y].data + 'a'-26, fp);
break;
case MAZE_FINISH:
putc('>', fp);
if(maze[z].sq[x][y].data == -1) putc('>', fp);
else putc(maze[z].sq[x][y].data + 'A', fp);
break;
}
}
putc('\n', fp);
}
}
}
cursor_on();
}
void message(char *s) {
cursor_off();
clear_screen();
cursor(10, 10);
printf("%s", s);
getch();
cursor_on();
}
void chomp(char *s) {
while(*s && *s != '\n' && *s != '\r') s++;
*s = 0;
}