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#include <termbox.h>
#include "world.h"
#include "util/term.h"
template<
std::size_t WIDTH,
std::size_t HEIGHT
>
void draw(
std::size_t x,
std::size_t y,
life::World<WIDTH, HEIGHT>& world
) {
life::util::BoxTraverser viewport(x, y, WIDTH, HEIGHT);
tb_clear();
viewport.for_each([&](std::size_t i, std::size_t j) {
const std::uint8_t density{world.lifeDensityAt(i-x, j-y)};
if ( world.isLifeAt(i-x, j-y) ) {
tb_change_cell(i, j, 48+density, TB_BLACK, TB_GREEN);
} else {
tb_change_cell(i, j, 48+density, TB_BLACK, TB_BLUE);
}
});
util::print_tb(1, 1, TB_WHITE, TB_DEFAULT, "Age:");
util::print_tb(6, 1, TB_WHITE, TB_DEFAULT, std::to_string(world.getAge()));
tb_present();
}
int main(int, char*[]) {
util::TermGuard guard;
life::World<40,20> world;
std::size_t worldOffsetX = tb_width() / 2 - world.width / 2;
std::size_t worldOffsetY = tb_height() / 2 - world.height / 2;
draw(worldOffsetX, worldOffsetY, world);
while ( true ) {
struct tb_event ev{ guard.poll() };
switch ( ev.type ) {
case TB_EVENT_KEY:
switch ( ev.key ) {
case TB_KEY_ESC:
return 0;
case TB_KEY_SPACE:
world.tick();
break;
}
break;
case TB_EVENT_MOUSE:
if ( ev.key == TB_KEY_MOUSE_LEFT ) {
const std::size_t x = ev.x - worldOffsetX;
const std::size_t y = ev.y - worldOffsetY;
if ( world.isLifeAt(x, y) ) {
world.extinguishLifeAt(x, y);
} else {
world.summonLifeAt(x, y);
}
}
break;
case TB_EVENT_RESIZE:
worldOffsetX = ev.w / 2 - world.width / 2;
worldOffsetY = ev.h / 2 - world.height / 2;
break;
}
draw(worldOffsetX, worldOffsetY, world);
}
return 0;
}
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