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#include "types.hpp"
#include "util.hpp"
#include "input.hpp"
void bad_vsync() {
while (*REG_VCOUNT >= 160);
while (*REG_VCOUNT < 160);
}
int main() {
auto bg_flags = BGControlFlags()
.set_charblock_base(0)
.set_screenblock_base(28)
.set_size(BGControlSize::Regular_64x64);
set_bg_control(0, bg_flags);
set_bg_offsets(0, 0, 0);
const Tile4 tiles[2] = {
{{0x11111111, 0x01111111, 0x01111111, 0x01111111, 0x01111111, 0x01111111, 0x01111111, 0x00000001}},
{{0x00000000, 0x00100100, 0x01100110, 0x00011000, 0x00011000, 0x01100110, 0x00100100, 0x00000000}},
};
set_tile(0, 0, tiles[0]);
set_tile(0, 1, tiles[1]);
set_bg_palette(0, 1, Color::from_rgb(31, 0, 0));
set_bg_palette(1, 1, Color::from_rgb( 0, 31, 0));
set_bg_palette(2, 1, Color::from_rgb( 0, 0, 31));
set_bg_palette(3, 1, Color::from_rgb(16, 16, 16));
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 32*32; j++) {
auto screen_entry = ScreenEntry()
.set_tile_index(i % 2)
.set_palette_bank(i);
set_screen_entry(28+i, j, screen_entry);
}
}
set_display_control(Mode0, BG0);
s16 x = 0, y = 0;
while (1) {
bad_vsync();
keyflags_poll();
if (key_is_down(Key::Left)) x -= 1;
if (key_is_down(Key::Right)) x += 1;
if (key_is_down(Key::Up)) y -= 1;
if (key_is_down(Key::Down)) y += 1;
set_bg_offsets(0, x, y);
}
return 0;
}
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