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Bohdana Marchenko 2025-05-02 06:38:37 +00:00
parent 40d250a832
commit 9653efcd07
2 changed files with 31 additions and 16 deletions
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45
a3/main.c
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@ -25,8 +25,11 @@ void init_snake(struct event* world, struct state* st){
int cx = st->width / 2;
int cy = st->height / 2;
st->snake = NULL;
// Place snake horizontally, centered, away from borders
int start_x = cx - 2;
int y = cy;
for (int i = 0; i < 5; i++) {
st->snake = add_snake(st->snake, cx, cy + i); // vertical, head at top
st->snake = add_snake(st->snake, start_x + i, y);
}
int placed = 0;
@ -40,7 +43,7 @@ void init_snake(struct event* world, struct state* st){
}
}
// Initial game vector
// Initial game vector: right
st->sx = 1;
st->sy = 0;
}
@ -48,31 +51,45 @@ void init_snake(struct event* world, struct state* st){
// Step is called in a loop once in interval.
// It should modify the state and draw it.
int world_event(struct event* w,void* game){
// Get state pointer
static int game_over = 0;
struct state* st = game;
if (w->type == EVENT_START){
// Called on beginning
game_over = 0;
init_snake(w,st);
}
if (game_over) {
// Ignore all events except EVENT_START and EVENT_ESC
if (w->type != EVENT_ESC && w->type != EVENT_START) {
return 0;
}
}
// Called on key press
else if (w->type == EVENT_KEY){
int key = w->key;
// Modifies vector of snake movement
if (key == KEY_RIGHT){
st->sx = 1;
st->sy = 0;
if (!(st->sx == -1 && st->sy == 0)) { // Prevent reverse
st->sx = 1;
st->sy = 0;
}
}
else if (key == KEY_LEFT){
st->sx = -1;
st->sy = 0;
if (!(st->sx == 1 && st->sy == 0)) { // Prevent reverse
st->sx = -1;
st->sy = 0;
}
}
else if (key == KEY_DOWN){
st->sx = 0;
st->sy = 1;
if (!(st->sx == 0 && st->sy == -1)) { // Prevent reverse
st->sx = 0;
st->sy = 1;
}
}
else if (key == KEY_UP){
st->sx = 0;
st->sy = -1;
if (!(st->sx == 0 && st->sy == 1)) { // Prevent reverse
st->sx = 0;
st->sy = -1;
}
}
}
// Called on esc key
@ -88,9 +105,6 @@ int world_event(struct event* w,void* game){
st->height = w->height;
// Change game state
int r = step_state(st);
char ms[200];
sprintf(ms,"r %d\n",r);
set_message(ms,9,9);
// Draw snake
struct snake* sn = st->snake;
while (sn != NULL){
@ -107,6 +121,7 @@ int world_event(struct event* w,void* game){
if (r){
char message[] = "Koniec";
set_message(message,10,10);
game_over = 1;
}
}
return 0;

2
a3/snake.h
View File

@ -2,7 +2,7 @@
#define snake_h_INCLUDED
// Number of food items on the plane
#define FOOD_COUNT 5
#define FOOD_COUNT 20
/**
* One part of the snake;