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c-urs_-toil-s/star.c
Gwenhael Le Moine 5726123ceb x is a more readable symbol for gifts than *
2011-07-01 15:45:43 +02:00

438 lines
12 KiB
C
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
/* levels have fixed, hardcoded dimensions */
#define LEVEL_HEIGHT 9
#define LEVEL_WIDTH 16
typedef enum {
WALL ='#',
BALL ='@',
CUBE ='H',
VOID =' ',
GIFT ='x'
} cell;
typedef enum {
UP ='u',
DOWN ='d',
LEFT ='l',
RIGHT ='r'
} direction;
struct state {
char level[ LEVEL_HEIGHT * LEVEL_WIDTH ];
char moving;
int moves;
};
int count_gifts( struct state *s )
{
int i, n = 0;
for( i = 0 ; i < LEVEL_HEIGHT * LEVEL_WIDTH ; i++ ) {
if ( s->level[ i ] == GIFT ) {
n++;
}
}
return n;
}
void get_pos( struct state *s, int* pos )
{
int p;
p = (int)( strchr( s->level, s->moving ) - s->level );
pos[ 1 ] = p / LEVEL_WIDTH;
pos[ 0 ] = p - ( pos[ 1 ] * LEVEL_WIDTH );
}
char get_cell( struct state *s, int x, int y )
{
return s->level[ y * LEVEL_WIDTH + x ];
}
void set_cell( struct state *s, int x, int y, cell value )
{
s->level[ y * LEVEL_WIDTH + x ] = value;
}
void load_level( struct state *s, char* lvl )
{
strncpy( s->level, lvl, LEVEL_HEIGHT * LEVEL_WIDTH );
s->moving = BALL;
s->moves = 0;
}
void switch_actor( struct state *s )
{
s->moving = (s->moving == BALL) ? CUBE : BALL;
}
int won_or_not( struct state *s )
{
return( count_gifts( s ) == 0 );
}
void move( struct state *s, direction where )
{
int dx = 0, dy = 0, tmpx, tmpy, *item_coord;
item_coord = malloc( sizeof( int ) * 2 );
get_pos( s, item_coord );
tmpx = item_coord[ 0 ];
tmpy = item_coord[ 1 ];
switch( where ) {
case UP:
dy--;
break;
case DOWN:
dy++;
break;
case LEFT:
dx--;
break;
case RIGHT:
dx++;
break;
default: break;
}
/* Calculating arrival coordinates */
while ( /* Hairy conditions ahead */
/* target cell is within level's boundaries */
( ( tmpx + dx >= 0 ) && ( tmpx + dx < LEVEL_WIDTH ) ) &&
( ( tmpy + dy >= 0 ) && ( tmpy + dy < LEVEL_HEIGHT ) ) &&
/* and target cell is empty */
( get_cell( s, tmpx + dx, tmpy + dy ) == VOID )
/* or, in case the ball is moving, target cell can be a gift (which we'll eat) */
|| ( s->moving == BALL && ( get_cell( s, tmpx + dx, tmpy + dy ) == GIFT ) )
)
{
tmpx += dx;
tmpy += dy;
if ( s->moving == BALL && get_cell( s, tmpx, tmpy ) == GIFT ) {
set_cell( s, tmpx, tmpy, VOID );
}
}
/* Moving to arrival coordinates */
set_cell( s, item_coord[ 0 ], item_coord[ 1 ], VOID );
set_cell( s, tmpx, tmpy, s->moving );
free( item_coord );
}
/* below for testing, my kind-of/sort-of unti-testing */
/* so if I declare level as cell* levels[] I get a warning :/ */
char xlevels[] = { "################"
"#@## x#H#"
"# x ###"
"# ##x #"
"# ## x ##"
"## x x x #"
"# x x## x #"
"# ##x x#"
"################",
" # # # # # ##"
"# x @#"
" #x #x x "
"# # x x # #"
" # x # "
"# #H# x #"
" # # # #xx#"
"# # "
" # # # ",
"################"
"# x#@#"
"# ## ##H#"
"# #x x #"
"# x x## x#"
"# #x x x# x##"
"# ##x #x x x###"
"#x ##x #"
"################",
"################"
"# #H#"
"# # #"
"##x#x x#x#x#x#x#"
"# # #x x# # # ##"
"##x#x#x x#x#x#x#"
"# # #"
"# # #@ #"
"################",
" ############## "
"#@ # # # #"
"# #x # x x # #"
"## # # #"
"#x #x# ##"
"## # x # #"
"#x# # # # #H#"
"# # x# #x#"
" ############## ",
" ############"
" # x #x x#"
" # x # ##"
" # x #"
"#@ x #"
"## x # ##"
"# x # #"
"#H # x ##x #"
"################",
"################"
"# #"
" ## ### #x ##x#"
" #x #x # # # # "
" # # ### ## "
" ## # #x# #x# "
"# #"
"# @#x H #x#"
"################",
"############### "
"# x## ##"
"# #x ## x #"
"# x## # #x #"
"## ## #x# #"
"## # x#x #"
"#xHx# x #@# #"
"## #"
" ###############",
" # ########### "
" #x#x # @#"
"#x x# x # "
" # # x## x# #"
"# #x #xHx x#"
"# x## # "
"#x#x # "
"# # "
"############ ",
" ########### "
"#### x #"
"# H ###x x# x#"
"# x #x #x # "
"# # x # x#"
"#x#x # x# #@# "
" #x ### ### "
"# # # # "
" ######### # #",
"################"
"# # @#"
"# #xx xx ##"
"## x ## x#"
"#x #x#xx ###"
"## ## ## #"
"#x x# x H x#"
"##x### # ##"
" ## ########### ",
"## ## #### "
"#@#####x ### x##"
"# xx x #"
"# ## ##x #x# #"
"# # x ###x ## #"
"# ## ## #H# #"
"# x #"
"# x #"
"################",
" ############## "
"# @# x ##"
"# # #x x## #"
"# x # #"
"# x #x#"
"# # x #"
"## x x #x#"
"#H # x # # #"
" ############## ",
"################"
"#x#x x#x#"
"# x#@ ## #"
"# H x #"
"# x# #"
"# x #"
"# x# # #"
"#x#x x#x#"
"################",
" ###### ####### "
"# x# x #"
"# # x # # x #"
"# @# #xx #x #"
" # # # x H# #"
"#x # #x #"
" # x # "
"#x x#"
" ############## ",
"################"
"## H#x x x#"
"#x @x#x ##"
"## ### x ##"
"## x#x# #"
"#xx x#x #"
"## x ####x #"
"##x# # #"
"################",
"################"
"# x# #@ #"
"# # x#xx#x # #"
"# #x##x# x #"
"# x# x# #"
"# x#x x# #"
"# # # ##x# # #"
"# x #x H #"
"################",
"################"
"# x x H# #"
"# #x#x #x #"
"# #x# #x #"
"# x # x#x #"
"# #x# # x# #"
"# x#x # x # #"
"#x#@ # # #"
"################",
"################"
"#x ## ##x#"
"# # # #x #"
"# x# x## x #"
"# # #x #"
"# # x# #"
"# ## x# ##x #H#"
"# x# #x ##@#"
"################",
"################"
"# x#x #"
"##x x# ##x ##"
"# # # x # # #"
"# H # ## # @x#"
"# # # x # # #"
"## x## #x x##"
"# x#x #"
"################",
"################"
"# ### x ##"
"# # # ##"
"# ##x x #"
"# x x x ##"
"# # ###x #"
"# x x @ H x xx#"
"################"
" ",
"################"
"#x# #x# #x # #"
"# # #"
"#x # #x x #"
"## #x x ###"
"# x # ###x #"
"# #@#H x #"
"################"
" ",
" ############## "
"# # #x# #x # #"
"# x # #"
"## # x #x #"
"# #x # xx x #"
"##x # ## x #"
"# #@#H x #"
" ############## "
" ",
"################"
"# # ##"
"# ##x x ##x##"
"# #x x# ###"
"# xx x# ## #"
"# #x x # ## #"
"# ## @#H###xx#"
"################"
" ",
"################"
"# # #"
"# x ##x x #"
"# #x x ## #"
"# x ## #x #"
"# #x x# x #"
"# ##x #@ H #"
"################"
" " };
void display_level( struct state *s )
{
int i, j, *ball, *cube;
printf( "%i gifts left", count_gifts( s ) );
if ( won_or_not( s ) ) {
printf( ", You WON !\n");
}
else {
printf( ", go on.\n");
}
for( i = 0 ; i < LEVEL_HEIGHT ; i++ ) {
for( j = 0 ; j < LEVEL_WIDTH ; j++ ) {
switch( get_cell( s, j, i ) ) {
case WALL:
printf( "##" );
break;
case VOID:
printf( " " );
break;
case BALL:
printf( "()" );
break;
case CUBE:
printf( "[]" );
break;
case GIFT:
printf( "<>" );
break;
default: break; /* ignore newlines */
}
}
printf( "\n" );
}
}
int main( int argc, char* argv[] )
{
int i = 0;
struct state *s = malloc( sizeof( struct state ) );
load_level( s, levels[ 0 ] );
display_level( s );
char* moves = "drdluruldrdlrulurudlurdul";
do {
fprintf( stderr, "move %c\n", moves[ i ]);
move( s, moves[ i ] );
display_level( s );
i++;
} while( ( ! won_or_not( s ) ) && ( moves[ i ] != '\0' ) );
display_level( s );
free( s );
return 0;
}
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