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change the number of balls in runtime with m and l (no more malloc(sizeof(ball)*nballs) :C )

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Angel Jumbo 2023-01-13 22:32:11 -05:00
parent be6adee51b
commit aa408d0b9f
1 changed files with 48 additions and 17 deletions
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65
lavat.c
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@ -7,6 +7,9 @@
#include <time.h>
#include <unistd.h>
#define MIN_NBALLS 5
#define MAX_NBALLS 20
typedef struct {
int x;
int y;
@ -22,7 +25,10 @@ static short speedMult = 5;
static short rim = 0;
static short contained = 0;
static float radius = 100;
static int maxX,maxY;
static int speed;
void event_handler(struct tb_event event);
int parse_options(int argc, char *argv[]);
void print_help();
@ -35,7 +41,8 @@ int main(int argc, char *argv[]) {
rim = 0;
time_t t;
Ball *balls = malloc(sizeof(Ball) * nballs);
//Ball *balls = malloc(sizeof(Ball) * nballs);
Ball balls[MAX_NBALLS] = {0};
struct tb_event event = {0};
@ -45,10 +52,10 @@ int main(int argc, char *argv[]) {
tb_hide_cursor();
int maxX = tb_width();
int maxY = tb_height() * 2;
maxX = tb_width();
maxY = tb_height() * 2;
speedMult = 11 - speedMult;
int speed = (((1 / (float)(maxX + maxY)) * 1000000) + 10000) * speedMult;
speed = (((1 / (float)(maxX + maxY)) * 1000000) + 10000) * speedMult;
radius = (radius * radius + (float)(maxX * maxY)) / 15000;
int margin = contained ? radius * 10 : 0;
@ -65,7 +72,7 @@ int main(int argc, char *argv[]) {
custom2 = custom + 1;
}
for (int i = 0; i < nballs; i++) {
for (int i = 0; i < MAX_NBALLS; i++) {
balls[i].x = rand() % (maxX - 2 * margin) + margin;
balls[i].y = rand() % (maxY - 2 * margin) + margin;
balls[i].dx = (rand() % 2 == 0) ? -1 : 1;
@ -145,6 +152,20 @@ int main(int argc, char *argv[]) {
tb_clear();
tb_peek_event(&event, 10);
event_handler(event);
if (event.key == TB_KEY_CTRL_C || event.key == TB_KEY_ESC ||
event.ch == 'q' || event.ch == 'Q')
break;
}
tb_shutdown();
//free(balls);
}
void event_handler(struct tb_event event){
switch (event.ch) {
case '-':
case '_':
@ -160,17 +181,24 @@ int main(int argc, char *argv[]) {
speed = (((1 / (float)(maxX + maxY)) * 1000000) + 10000) * speedMult;
}
break;
}
if (event.key == TB_KEY_CTRL_C || event.key == TB_KEY_ESC ||
event.ch == 'q' || event.ch == 'Q')
case 'm':
case 'M':
if(nballs+1<=MAX_NBALLS){
nballs++;
}
break;
}
case 'l':
case 'L':
if(nballs-1>=MIN_NBALLS){
nballs--;
}
break;
}
tb_shutdown();
free(balls);
}
int set_color(short *var, char *optarg) {
if (strcmp(optarg, "red") == 0) {
@ -230,10 +258,10 @@ int parse_options(int argc, char *argv[]) {
case 'b':
nballs = atoi(optarg);
if (nballs > 20 || nballs < 2) {
if (nballs > MAX_NBALLS || nballs < MIN_NBALLS) {
printf("Invalid number of metaballs, only values between 2 and 20 are"
"allowed\n");
printf("Invalid number of metaballs, only values between %i and %i are"
"allowed\n", MIN_NBALLS,MAX_NBALLS);
return 0;
}
break;
@ -282,7 +310,10 @@ void print_help() {
" -k <COLOR> Set the color of the rim if there is one."
" Available colours: red, blue, yellow, green, cyan and magenta. \n"
" -b <NBALLS> Set the number of metaballs in the simulation, "
"from 2 to 20. (default: 10)\n"
"from %i to %i. (default: 10)\n"
" Increase or decrease the number of balls in run"
"time with the m and l keys.\n"
" -F <CHARS> Allows for a custom set of chars to be used\n"
" Only ascii symbols are supported for now, "
"wide/unicode chars may appear broken.\n"
@ -291,5 +322,5 @@ void print_help() {
" a bigger radius than the default one.\n"
" -h Print help.\n"
"(Tip: Zoom out in your terminal before running the program to get a "
"better resolution of the lava).\n");
"better resolution of the lava).\n",MIN_NBALLS,MAX_NBALLS);
}