風船 Balloons | C language for IchigoJam (c4ij, IchigoJam BASIC 1.3.2b12+) https://15jamrecipe.jimdofree.com/basic/%E3%83%97%E3%83%AD%E3%82%B0%E3%83%A9%E3%83%A0/%E9%A2%A8%E8%88%B9/

main-balloons.c

// Balloons | C language for IchigoJam (c4ij, IchigoJam BASIC 1.3.2b12+)
// Copyright (c) 2019 Keiichi SHIGA (BALLOON a.k.a. Fu-sen.)
// The MIT License (MIT) - https://gist.github.com/fu-sen/7e55ee56a67e07d804db9379178e3cb5

#include <std15.h>

__attribute__ ((section(".main")))
int main(int param, int ram, int rom, int (*divfunc)()) {
	cls();

	for (;;) {
		int x = rnd(31);

		locate(x, 23);
		putc(232);
		putc(10);

		if( inkey() != -1 ) break;

		wait(7);

		locate(x, 23);
		putc(242);
	}

	return 0;
}