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#include <termbox.h>
#include "world.h"
void print_tb(
std::size_t x,
std::size_t y,
std::uint16_t fg,
std::uint16_t bg,
const std::string& text
) {
for ( const char& c : text ) {
tb_change_cell(x, y, c, fg, bg);
x++;
}
}
template<
std::size_t WIDTH,
std::size_t HEIGHT
>
void draw(
std::size_t x,
std::size_t y,
life::World<WIDTH, HEIGHT>& world
) {
tb_clear();
for ( std::size_t i = 0; i < HEIGHT; i++ ) {
for ( std::size_t j = 0; j < WIDTH; j++ ) {
const char density{std::to_string(world.lifeDensityAt(j,i))[0]};
if ( world.isLifeAt(j,i) ) {
tb_change_cell(x+j, y+i, density, TB_BLACK, TB_GREEN);
} else {
tb_change_cell(x+j, y+i, density, TB_BLACK, TB_BLUE);
}
}
}
print_tb(x+1, y+21, TB_WHITE, TB_DEFAULT, "Age:");
print_tb(x+6, y+21, TB_WHITE, TB_DEFAULT, std::to_string(world.getAge()));
tb_present();
}
int main(int, char*[]) {
tb_init();
tb_select_output_mode(TB_OUTPUT_NORMAL);
tb_select_input_mode(TB_INPUT_ESC | TB_INPUT_MOUSE);
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;
int t = tb_poll_event(&ev);
if ( t == -1 ) {
tb_shutdown();
return -1;
}
switch ( t ) {
case TB_EVENT_KEY:
switch ( ev.key ) {
case TB_KEY_ESC:
tb_shutdown();
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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