sheldonmlee/ncurses-gameoflife
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FPS now controlled by delay to reduce cpu usage. Added last key overlay.

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This commit is contained in:
Sheldon Lee 2020-06-22 00:58:05 +01:00
parent 75f670988c
commit 8361724ad5
2 changed files with 38 additions and 16 deletions
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1
grid.c
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@ -97,7 +97,6 @@ void drawGrid(Grid* grid)
width = grid->width;
height = grid->size/width;
// Init color pair init_pair(index, fg, bg);
init_pair(1, COLOR_BLUE, COLOR_WHITE);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
if (grid->state[toIndex(grid, x, y)]){

53
main.c
View File

@ -6,16 +6,28 @@
#include "grid.h"
#include "vect.h"
static bool running = true;
void handleInput(char ch);
void showLastPressed(char ch);
int main()
{
// init
bool running = true;
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);
@ -28,31 +40,32 @@ int main()
getmaxyx(stdscr, height, width);
// framerate of the game
const int FRAME_RATE = 30;
const float FRAME_TIME = 1.f/(double)FRAME_RATE;
const int DELAY = (float)pow(10,6)/(float)FRAME_RATE;
const int FRAME_RATE = 144;
const float FRAME_TIME = 1.f/(float)FRAME_RATE;
Grid grid;
initGrid(&grid, width, height);
randomizeGrid(&grid);
clock_t t = 0;
float t = 0;
while (running) {
clock_t start_t = clock();
char ch = getch();
if (ch == 'q') running = false;
float actual_frame_time = (float) t / (float) CLOCKS_PER_SEC;
handleInput(ch);
if (actual_frame_time >= FRAME_TIME) {
drawGrid(&grid);
refresh();
updateGrid(&grid);
t = 0;
}
// draw grid
drawGrid(&grid);
// draw overlays
attron(COLOR_PAIR(2));
showLastPressed(ch);
attroff(COLOR_PAIR(2));
t += clock()-start_t;
refresh();
updateGrid(&grid);
usleep(pow(10,6)*(FRAME_TIME-t));
float t = (float) (clock()-start_t) / (float) CLOCKS_PER_SEC;
}
@ -60,3 +73,13 @@ int main()
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;
}