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define INPUT = 0xbffe;
define SCREEN = 0xbfff;
define TRUE = 1;
define FALSE = 0;
main() {
loop {
slp;
erase();
update();
draw();
}
}
update() {
input_update();
player_update();
}
erase() {
player_erase();
}
draw() {
player_draw();
}
global input_left;
global input_right;
global input_up;
global input_down;
input_update() {
local input;
input = [INPUT];
input_up = (input & 0x10) != 0;
input_down = (input & 0x20) != 0;
input_left = (input & 0x40) != 0;
input_right = (input & 0x80) != 0;
}
global player_x = 64;
global player_y = 64;
player_update() {
player_x = player_x + input_right - input_left;
player_y = player_y + input_down - input_up;
}
player_erase() {
pset(player_x, player_y, 0x1111);
}
player_draw() {
pset(player_x, player_y, 0xffff);
}
pset(x, y, c) {
[SCREEN + (x & 127) + (y & 127) * 128] = c;
}
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