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#include "buttons.h"
#include "dogs.h"
static int values[16];
void g2048_init()
{
for (int i = 0; i < 16; i++)
values[i] = 0;
}
int g2048_loop()
{
if ((button_state & BUTTON_JOYUP) == BUTTON_JOYUP) {
for (int x = 0; x < 3; x++) {
for (int y = 0; y < 3; y++) {
if (values[4 * y + x] != 0)
continue;
}
}
for (int y = 3; y > 0; y--) {
for (int x = 0; x < 4; x++) {
if (values[4 * y + x] != 0) {
if (values[4 * (y - 1) + x] == 0)
values[4 * (y - 1) + x] = values[4 * y + x], values[4 * y + x] = 0;
else if (values[4 * (y - 1) + x] == values[4 * y + x])
values[4 * (y - 1) + x]++, values[4 * y + x] = 0;
}
}
}
for (int i = 15; i >= 0; i--) {
if (values[i] == 0) {
values[i] = 1;
break;
}
}
} else if ((button_state & BUTTON_JOYDOWN) == BUTTON_JOYDOWN) {
for (int y = 0; y < 3; y++) {
for (int x = 0; x < 4; x++) {
if (values[4 * y + x] != 0) {
if (values[4 * (y + 1) + x] == 0)
values[4 * (y + 1) + x] = values[4 * y + x], values[4 * y + x] = 0;
else if (values[4 * (y + 1) + x] == values[4 * y + x])
values[4 * (y + 1) + x]++, values[4 * y + x] = 0;
}
}
}
for (int i = 15; i >= 0; i--) {
if (values[i] == 0) {
values[i] = 1;
break;
}
}
} else if ((button_state & BUTTON_JOYLEFT) == BUTTON_JOYLEFT) {
for (int x = 3; x > 0; x--) {
for (int y = 0; y < 4; y++) {
if (values[4 * y + x] != 0) {
if (values[4 * y + x - 1] == 0)
values[4 * y + x - 1] = values[4 * y + x], values[4 * y + x] = 0;
else if (values[4 * y + x - 1] == values[4 * y + x])
values[4 * y + x - 1]++, values[4 * y + x] = 0;
}
}
}
for (int i = 15; i >= 0; i--) {
if (values[i] == 0) {
values[i] = 1;
break;
}
}
} else if ((button_state & BUTTON_JOYRIGHT) == BUTTON_JOYRIGHT) {
for (int x = 0; x < 3; x++) {
for (int y = 0; y < 4; y++) {
if (values[4 * y + x] != 0) {
if (values[4 * y + x + 1] == 0)
values[4 * y + x + 1] = values[4 * y + x], values[4 * y + x] = 0;
else if (values[4 * y + x + 1] == values[4 * y + x])
values[4 * y + x + 1]++, values[4 * y + x] = 0;
}
}
}
for (int i = 15; i >= 0; i--) {
if (values[i] == 0) {
values[i] = 1;
break;
}
}
}
dogs_clear();
for (int i = 0; i < 16; i++) {
if (values[i] != 0)
draw_number(31 + 10 * (i % 4), 12 + 10 * (3 - (i / 4)), values[i]);
}
dogs_flush();
return 500;
}
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