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Tidying up spaces and such.

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This commit is contained in:
Bruce Hill 2019-01-05 21:44:59 -08:00
parent c4df03cc8b
commit acfffade06
4 changed files with 504 additions and 581 deletions
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3
colors.h
View File

@ -1,4 +1,5 @@
#ifndef __colors
#define __colors
const int WHITE = 1, YELLOW = 2, RED = 3, BLUE = 4, GREEN = 5, BLACK = 6;
const int WHITE = 1, YELLOW = 2, RED = 3, BLUE = 4, GREEN = 5, BLACK = 6, WHITE_BG = 7,
BLACK_ON_RED = 8, BLACK_ON_GREEN = 9;
#endif

5
globe.h
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@ -12,7 +12,9 @@
#include <poll.h>
static const double GOLDEN_RATIO = 1.6180339887498948482045868343656381;
static const int NUM_WAVES = 7;
// Randomly generated x/y offsets:
static const double OFFSETS[2*NUM_WAVES] = {
0.5459919526, 0.6072439135, 0.6217563193, 0.5444045324, 0.8923452588,
0.4626828607, 0.9422234679,
@ -20,11 +22,12 @@ static const double OFFSETS[2*NUM_WAVES] = {
0.7870886548, 0.7425605127, 0.1510923405, 0.3889282293, 0.3730024274,
0.1450487012, 0.9051931355,
};
// 0.83^n amplitudes
static const double AMPLITUDES[NUM_WAVES] = {
//0.9, 0.81, 0.729, 0.6561, 0.59049, 0.531441, 0.4782969
0.83, 0.6889, 0.571787, 0.47458321, 0.3939040643, 0.326940373369, 0.27136050989627
};
// See: https://blog.bruce-hill.com/hill-noise/
static double hillnoise(double x, double y)
{
double noise = 0;

4
list.h
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@ -1,9 +1,13 @@
/**
* Helper functions for adding files to a dynamically resizing array.
*/
#include <dirent.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#define MAX_FILES 200
void add_file(char *name, char ***files, int *size, int *capacity)
{
// Prevent from taking too long

119
nuke.c
View File

@ -1,9 +1,8 @@
/**
* ASCII explosion from squeamish ossifrage at:
* https://codegolf.stackexchange.com/questions/24462/display-the-explosion-of-a-star-in-ascii-art/24554#24554
* A program to nuke files from orbit.
*/
#include "colors.h"
#include "explosion.h"
#include "globe.h"
#include "list.h"
#include <curses.h>
@ -17,25 +16,14 @@
#include <unistd.h>
#define NUM_FRAMES 100
#define NUM_BLOBS 800
#define PERSPECTIVE 50.0
#define ESCDELAY 10
typedef struct {
double x,y,z;
} spaceblob;
// 30 FPS:
#define FRAME_USEC 33333
static int color_ramp1[] = {1,1,1,2,2,2,3,3,3,1,1, -1};
static int bold_ramp1[] = {1,1,0,1,0,0,1,0,0,0,0, -1};
static int color_ramp2[] = {1,1,1,1,2,2,2,2,2,3,3,3,3,3,1,1,1,1,1,1, -1};
static int bold_ramp2[] = {1,1,0,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0, -1};
double prng() {
static long long s=1;
s = s * 1488248101 + 981577151;
return ((s % 65536) - 32768) / 32768.0;
}
static void sighandler(int sig) {
(void)sig;
curs_set(1);
@ -43,69 +31,6 @@ static void sighandler(int sig) {
exit(EXIT_FAILURE);
}
static void draw_frame(int i, int midx, int midy, spaceblob* blobs) {
int rows,cols;
getmaxyx(stdscr,rows,cols);
int maxx,minx,maxy,miny;
minx = -midx;
maxx = cols+minx-1;
miny = -midy;
maxy = rows+miny-1;
chtype line[cols+1];
for (int y=miny; y<=maxy; y++) {
int row = y+midy;
for (int x=minx; x<=maxx; x++) {
int col = x+midx;
/* Show expanding star in next 7 frames */
if (i<8) {
double r = sqrt(x*x + 4*y*y);
if (r < i*2)
mvaddch(row,col,'@');
continue;
}
/* Otherwise show blast wave */
double r = sqrt(x*x + 4*y*y) * (0.5 + (prng()/3.0)*cos(16.*atan2(y*2.+0.01,x+0.01))*.3);
int v = i - r - 7;
if (v<0) {
if (i<19) {
int attr = 0;//color_ramp1[i-8];
line[col] = "%@W#H=+~-:."[i-8] | attr;
} else {
line[col] = ' ';
}
} else if (v<20) {
int attr = 0;//color_ramp2[v];
line[col] = " .:!HIOMW#%$&@08O=+-"[v] | attr;
} else {
line[col] = ' ';
}
}
if (i >= 8) {
line[cols+1] = '\0';
mvaddchstr(row,0,line);
}
}
/* Add blobs with perspective effect */
if (i>6) {
int i0 = i-6;
for (int j=0; j<NUM_BLOBS; j++) {
double bx = blobs[j].x * i0;
double by = blobs[j].y * i0;
double bz = blobs[j].z * i0;
if (bz<5-PERSPECTIVE || bz>PERSPECTIVE) continue;
int x = midx + bx * PERSPECTIVE / (bz+PERSPECTIVE);
int y = midy + by * PERSPECTIVE / (bz+PERSPECTIVE);
if (x>=0 && x<cols && y>=0 && y<rows) {
int row = y, col = x;
mvaddch(row,col,(bz>40) ? '.' : (bz>-20) ? 'o' : '@');
}
}
}
}
static int remove_callback(const char *path, const struct stat *sb, int typeflag, struct FTW *ftwbuf)
{
int rv = remove(path);
@ -124,7 +49,6 @@ int main(int argc, char *argv[])
int rows,cols;
int delay=1E5;
spaceblob *blobs;
int capacity = 32, num_files= 0;
char **files = malloc(sizeof(char*)*capacity);
@ -158,29 +82,17 @@ int main(int argc, char *argv[])
init_pair(BLUE, COLOR_BLUE, COLOR_BLACK);
init_pair(GREEN, COLOR_GREEN, COLOR_BLACK);
init_pair(BLACK, COLOR_BLACK, COLOR_BLACK);
init_pair(WHITE_BG, COLOR_BLACK, COLOR_WHITE);
init_pair(BLACK_ON_RED, COLOR_BLACK, COLOR_RED);
init_pair(BLACK_ON_GREEN, COLOR_BLACK, COLOR_GREEN);
for (int i = 0; color_ramp1[i] >= 0; i++)
color_ramp1[i] = COLOR_PAIR(color_ramp1[i]) | (bold_ramp1[i] ? A_BOLD : 0);
for (int i = 0; color_ramp2[i] >= 0; i++)
color_ramp2[i] = COLOR_PAIR(color_ramp2[i]) | (bold_ramp2[i] ? A_BOLD : 0);
const int BLACK_ON_RED = 7, BLACK_ON_GREEN = 8;
init_pair(BLACK_ON_RED, COLOR_BLACK, COLOR_RED);
init_pair(BLACK_ON_GREEN, COLOR_BLACK, COLOR_GREEN);
getmaxyx(stdscr,rows,cols);
/* Generate random blob coordinates */
blobs = (spaceblob*)malloc(NUM_BLOBS * sizeof(spaceblob));
for (int i=0; i<NUM_BLOBS; i++) {
double bx,by,bz,br;
bx = prng();
by = prng();
bz = prng();
br = sqrt(bx*bx + by*by + bz*bz);
blobs[i].x = (bx / br) * (1.3 + 0.2 * prng());
blobs[i].y = (0.5 * by / br) * (1.3 + 0.2 * prng());;
blobs[i].z = (bz / br) * (1.3 + 0.2 * prng());;
}
curs_set(0); /* hide text cursor */
noecho();
keypad(stdscr, 1);
@ -375,20 +287,23 @@ int main(int argc, char *argv[])
goto exit_success;
}
}
usleep(33333); // 30 FPS
usleep(FRAME_USEC);
}
t += nuking_time;
for (int i=1; i<NUM_FRAMES; i++) {
draw_frame(i, targetc, targetr, blobs);
for (int i=0; i<100; i++) {
draw_explosion(i, targetc, targetr);
refresh();
/* Quit early? */
int ch = getch();
if (ch == 'q' || ch == 27) {
goto exit_success;
}
usleep(33333); // 30 FPS
if (i == 0)
usleep(8*FRAME_USEC); // flash for 8 frames
else
usleep(FRAME_USEC);
}
t += nuking_time;
for (; t < targeting_time + anticipation + firing_time + nuking_time + aftermath; t += 1./30.) {
erase();
@ -431,7 +346,7 @@ int main(int argc, char *argv[])
refresh();
if (getch() != -1)
goto exit_success;
usleep(33333); // 30 FPS
usleep(FRAME_USEC);
}
exit_success: