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custom charset #205

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29 changes: 23 additions & 6 deletions cmatrix.c
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Original file line number Diff line number Diff line change
Expand Up @@ -168,6 +168,8 @@ void usage(void) {
printf(" -m: lambda mode\n");
printf(" -k: Characters change while scrolling. (Works without -o opt.)\n");
printf(" -t [tty]: Set tty to use\n");
printf(" -U [charset]: Use given charset\n");

}

void version(void) {
Expand Down Expand Up @@ -310,6 +312,14 @@ void resize_screen(void) {
refresh();
}

char *charset = NULL;
int charsetlen;

int randomchar(int randnum, int randmin, int customcharset) {
if (customcharset) return charset[(int) rand() % charsetlen];
else return (int) rand() % randnum + randmin;
}

int main(int argc, char *argv[]) {
int i, y, z, optchr, keypress;
int j = 0;
Expand All @@ -331,6 +341,7 @@ int main(int argc, char *argv[]) {
int pause = 0;
int classic = 0;
int changes = 0;
int customcharset = 0;
char *msg = "";
char *tty = NULL;

Expand All @@ -339,7 +350,7 @@ int main(int argc, char *argv[]) {

/* Many thanks to morph- ([email protected]) for this getopt patch */
opterr = 0;
while ((optchr = getopt(argc, argv, "abBcfhlLnrosmxkVM:u:C:t:")) != EOF) {
while ((optchr = getopt(argc, argv, "abBcfhlLnrosmxkVM:u:C:t:U:")) != EOF) {
switch (optchr) {
case 's':
screensaver = 1;
Expand Down Expand Up @@ -428,6 +439,12 @@ int main(int argc, char *argv[]) {
case 't':
tty = optarg;
break;
case 'U':
charset = optarg;
charsetlen = strlen(charset);
customcharset = 1;
break;

}
}

Expand Down Expand Up @@ -682,14 +699,14 @@ if (console) {
if (((int) rand() % 3) == 1) {
matrix[0][j].val = 0;
} else {
matrix[0][j].val = (int) rand() % randnum + randmin;
matrix[0][j].val = randomchar(randnum, randmin, customcharset);
}
spaces[j] = (int) rand() % LINES + 1;
}
} else if (random > highnum && matrix[1][j].val != 1) {
matrix[0][j].val = ' ';
} else {
matrix[0][j].val = (int) rand() % randnum + randmin;
matrix[0][j].val = randomchar(randnum, randmin, customcharset);
}

} else { /* New style scrolling (default) */
Expand All @@ -699,7 +716,7 @@ if (console) {
} else if (matrix[0][j].val == -1
&& matrix[1][j].val == ' ') {
length[j] = (int) rand() % (LINES - 3) + 3;
matrix[0][j].val = (int) rand() % randnum + randmin;
matrix[0][j].val = randomchar(randnum, randmin, customcharset);

spaces[j] = (int) rand() % LINES + 1;
}
Expand All @@ -726,7 +743,7 @@ if (console) {
matrix[i][j].is_head = false;
if (changes) {
if (rand() % 8 == 0)
matrix[i][j].val = (int) rand() % randnum + randmin;
matrix[i][j].val = randomchar(randnum, randmin, customcharset);
}
i++;
y++;
Expand All @@ -737,7 +754,7 @@ if (console) {
continue;
}

matrix[i][j].val = (int) rand() % randnum + randmin;
matrix[i][j].val = randomchar(randnum, randmin, customcharset);
matrix[i][j].is_head = true;

/* If we're at the top of the column and it's reached its
Expand Down