77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
#include <stdio.h>
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#include <ncurses.h>
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#include <unistd.h>
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#include <math.h>
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#include <time.h>
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#include "grid.h"
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#include "vect.h"
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static void contain(int* pos, int* velocity, int min, int max);
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int main()
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{
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// init
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bool running = true;
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initscr();
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raw();
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// allows for transparancy when color values in init_pair(); are set to -1 or, no pair specified
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// e.g init_pair(1, COLOR_WHITE, -1) would be transparent background but white text
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use_default_colors();
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start_color();
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// doesn't wait for user to input.
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// timeout(100) waits for 100ms for input.
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timeout(0);
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curs_set(FALSE);
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int width = 0;
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int height = 0;
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// stdscr is screen created by initscr()
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getmaxyx(stdscr, height, width);
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// framerate of the game
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const int FRAME_RATE = 30;
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const float FRAME_TIME = 1.f/(double)FRAME_RATE;
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const int DELAY = (float)pow(10,6)/(float)FRAME_RATE;
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Grid grid;
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initGrid(&grid, width, height);
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randomizeGrid(&grid);
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clock_t t = 0;
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while (running) {
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clock_t start_t = clock();
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char ch = getch();
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if (ch == 'q') running = false;
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float actual_frame_time = (float) t / (float) CLOCKS_PER_SEC;
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if (actual_frame_time >= FRAME_TIME) {
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drawGrid(&grid);
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refresh();
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updateGrid(&grid);
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t = 0;
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}
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t += clock()-start_t;
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}
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endwin();
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return 0;
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}
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static void contain(int* pos, int* velocity, int min, int max)
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{
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bool above_max = max < *pos;
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bool below_min = *pos < min;
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bool not_in_range = below_min || above_max;
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if (not_in_range) {
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if (below_min) *pos = min;
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else if (above_max) *pos = max;
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*velocity *= -1;
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}
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}
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