format

Author: donno2048

main.c

@@ -5,81 +5,60 @@
 #include <unistd.h>
 #include <termios.h>
 #include <sys/ioctl.h>
-int t()
-{
-	struct timespec now;
-	timespec_get(&now, TIME_UTC);
-	return now.tv_sec * 1000 + now.tv_nsec / 1000000;
+#define g(x, y, u, v, s) for (int j = 0, X = x, Y = y; j < v && Y + j < h - X / w && Y >= 0 && X >= 0; ++j) memcpy(&f[Y + j][X], &s[j * u], u)
+#define l(x, y, w, h, a, b, c, d) !((x - a > c && x >= a) || (a - x > w && a >= x) || (y - b > d && y >= b) || (b - y > h && b >= y))
+#define f(x, y, z) y += z * d; strcpy(b, x); break
+int t() {
+    struct timespec now;
+    timespec_get(&now, TIME_UTC);
+    return now.tv_sec * 1000 + now.tv_nsec / 1000000;
 }
-
-#define g(x, y, u, v, s)                                                               \
-	for (int j = 0, X = x, Y = y; j < v && Y + j < h - X / w && Y >= 0 && X >= 0; ++j) \
-	memcpy(&f[Y + j][X], &s[j * u], u)
-#define l(x, y, w, h, a, b, c, d) \
-	!((x - a > c && x >= a) || (a - x > w && a >= x) || (y - b > d && y >= b) || (b - y > h && b >= y))
-#define f(x, y, z) \
-	y += z * d;    \
-	strcpy(b, x);  \
-	break
-
-int main()
-{
-	struct termios z, o;
-	tcgetattr(0, &z);		   // get current terminal settings as a "backup"
-	o = z;					   // save a copy
-	z.c_lflag &= ~ICANON;	   // disable canonical mode
-	z.c_cc[VMIN] = 0;		   // minimum number of characters to read
-	tcsetattr(0, TCSANOW, &z); // set new terminal settings
-	struct winsize v;		   // terminal size
-	ioctl(1, TIOCGWINSZ, &v);  // get terminal size
-	int h = v.ws_row, w = v.ws_col, A = w * h / 100, l = t(), g = 1;
-	struct V
-	{
-		float x, y;
-	} p = {w / 2, h / 2}, a[A], m[A];
-	char u = 0, f[h + 1][w], b[13] = " /\\ /  \\ vv ";
-	while (1)
-	{
-		float d = (t() - l) * .001;
-		read(0, &u, 1); // read the next move
-		l = t();
-		memset(f, ' ', h * w); // clear the screen
-		switch (u)			   // could be minified...
-		{
-		case 65: // up
-			f(" /\\ /  \\ vv ", p.y, -20);
-		case 66: // down
-			f(" ^^ \\  / \\/ ", p.y, 20);
-		case 67: // right
-			f("<\\  <  ></  ", p.x, 40);
-		case 68: // left
-			f("  /><  >  \\>", p.x, -40);
-		}
-		p.x = p.x < 4 ? 4 : p.x >= w - 4 ? w - 4
-										 : p.x; // make sure the player is in the screen (horizontally)
-		p.y = p.y < 1 ? 1 : p.y >= h - 3 ? h - 3
-										 : p.y; // make sure the player is in the screen (vertically)
-		for (int i = 0; i < A; ++i)
-		{
-			*f[h] = 0;
-			struct V *e = &a[i], *z = &m[i];
-			e->x += d * z->x; // move the asteroid in the x direction
-			e->y += d * z->y; // move the asteroid in the y direction
-			e->x < 0 - 3 || e->x >= w + 3 || e->y >= h + 2 || g ? e->y = -rand() % h * (1 + g),
-																  e->x = rand() % w,
-																  z->x = -8 + rand() % 15,
-																  z->y = 10 + rand() % 5 : 0;
-			if (l(p.x, p.y, 4, 3, e->x, e->y, 3, 2)) // if player hit an asteroid
-			{
-				tcsetattr(0, TCSADRAIN, &o); // restore the terminal
-				exit(0);					 // exit the program
-			};
-			g(e->x, e->y, 3, 2, "OOOOOO"); // draw the asteroid
-		}
-		g(p.x, p.y, 4, 3, b);			// draw the player
-		printf("\33[0;4H%s", &f[0][4]); // print the screen
-		while (t() - l < 10)
-			; // wait for a bit
-		g = 0;
-	}
+int main() {
+    struct termios z, o;
+    tcgetattr(0, &z);          // get current terminal settings as a "backup"
+    o = z;                     // save a copy
+    z.c_lflag &= ~ICANON;      // disable canonical mode
+    z.c_cc[VMIN] = 0;          // minimum number of characters to read
+    tcsetattr(0, TCSANOW, &z); // set new terminal settings
+    struct winsize v;          // terminal size
+    ioctl(1, TIOCGWINSZ, &v);  // get terminal size
+    int h = v.ws_row, w = v.ws_col, A = w * h / 100, l = t(), g = 1;
+    struct V {
+        float x, y;
+    } p = {w / 2, h / 2}, a[A], m[A];
+    char u = 0, f[h + 1][w], b[13] = " /\\ /  \\ vv ";
+    while (1) {
+        float d = (t() - l) * .001;
+        read(0, &u, 1); // read the next move
+        l = t();
+        memset(f, ' ', h * w); // clear the screen
+        switch (u) {           // could be minified...
+        case 65: // up
+            f(" /\\ /  \\ vv ", p.y, -20);
+        case 66: // down
+            f(" ^^ \\  / \\/ ", p.y, 20);
+        case 67: // right
+            f("<\\  <  ></  ", p.x, 40);
+        case 68: // left
+            f("  /><  >  \\>", p.x, -40);
+        }
+        p.x = p.x < 4 ? 4 : p.x >= w - 4 ? w - 4 : p.x; // make sure the player is in the screen (horizontally)
+        p.y = p.y < 1 ? 1 : p.y >= h - 3 ? h - 3 : p.y; // make sure the player is in the screen (vertically)
+        for (int i = 0; i < A; ++i) {
+            *f[h] = 0;
+            struct V *e = &a[i], *z = &m[i];
+            e->x += d * z->x; // move the asteroid in the x direction
+            e->y += d * z->y; // move the asteroid in the y direction
+            e->x < 0 - 3 || e->x >= w + 3 || e->y >= h + 2 || g ? e->y = -rand() % h * (1 + g), e->x = rand() % w, z->x = -8 + rand() % 15, z->y = 10 + rand() % 5 : 0;
+            if (l(p.x, p.y, 4, 3, e->x, e->y, 3, 2)) { // if player hit an asteroid
+                tcsetattr(0, TCSADRAIN, &o); // restore the terminal
+                exit(0);                     // exit the program
+            };
+            g(e->x, e->y, 3, 2, "OOOOOO"); // draw the asteroid
+        }
+        g(p.x, p.y, 4, 3, b);           // draw the player
+        printf("\33[0;4H%s", &f[0][4]); // print the screen
+        while (t() - l < 10); // wait for a bit
+        g = 0;
+    }
 }