ncurses-gameoflife/main.c

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#include <stdio.h>
#include <ncurses.h>
#include <unistd.h>
#include <math.h>
#include <time.h>
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#include "grid.h"
#include "vect.h"
static bool running = true;
void handleInput(char ch);
void showLastPressed(char ch);
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int main()
{
// init
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initscr();
raw();
// Colors
// allows for transparancy when color values in init_pair(); are set to -1 or, no pair specified
// e.g init_pair(1, COLOR_WHITE, -1) would be transparent background but white text
use_default_colors();
start_color();
// cell
init_pair(1, COLOR_BLUE, COLOR_WHITE);
// text
init_pair(2, COLOR_YELLOW, -1);
// doesn't wait for user to input.
// timeout(100) waits for 100ms for input.
timeout(0);
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curs_set(FALSE);
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int width = 0;
int height = 0;
// stdscr is screen created by initscr()
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getmaxyx(stdscr, height, width);
// framerate of the game
const int FRAME_RATE = 144;
const float FRAME_TIME = 1.f/(float)FRAME_RATE;
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Grid grid;
initGrid(&grid, width, height);
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randomizeGrid(&grid);
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float t = 0;
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while (running) {
clock_t start_t = clock();
char ch = getch();
handleInput(ch);
// draw grid
drawGrid(&grid);
// draw overlays
attron(COLOR_PAIR(2));
showLastPressed(ch);
attroff(COLOR_PAIR(2));
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refresh();
updateGrid(&grid);
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usleep(pow(10,6)*(FRAME_TIME-t));
float t = (float) (clock()-start_t) / (float) CLOCKS_PER_SEC;
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}
endwin();
return 0;
}
void showLastPressed(char ch)
{
static char lastc = ' ';
if (ch != -1) lastc = ch;
mvprintw(0, 0, "LastPressed: %c", lastc);
}
void handleInput(char ch)
{
if (ch == 'q') running = false;
}