xnoe-os/src/world/world.c

243 lines
5.1 KiB
C

#include "../common/common.h"
#include <stdbool.h>
typedef struct {
char* buffer;
int x;
int y;
uint32_t process;
uint32_t stdin;
uint32_t stdout;
} procbuffer;
void scrollBuffer(char* buf) {
for (int y=0; y<21; y++)
for (int x=0; x<38; x++)
if (y != 20)
buf[y*38+x] = buf[(y+1)*38+x];
else
buf[y*38+x] = ' ';
}
void writeToBuf(char c, procbuffer* buf) {
switch (c) {
case '\n':
buf->x = 0;
buf->y++;
break;
case '\b':
if (buf->x > 0)
buf->x--;
else if (buf->y > 0) {
buf->x = 37;
buf->y--;
}
buf->buffer[buf->y*38+buf->x] = ' ';
break;
default:
buf->buffer[buf->y*38+buf->x++] = c;
}
if (buf->x == 38) {
buf->x = 0;
buf->y++;
}
if (buf->y == 21) {
buf->y--;
scrollBuffer(buf->buffer);
}
}
void writeStrToBuf(char* c, procbuffer* b) {
char* s = c;
while(*s)
writeToBuf(*(s++), b);
}
void displayBuf(procbuffer* b, int dx, int dy) {
char pset[9] = "\x1b[00;00H";
for (int i=0; i<dy;i++) {
pset[3]++;
if (pset[3] == 0x3a) {
pset[3] = 0x30;
pset[2]++;
}
}
for (int i=0; i<dx;i++) {
pset[6]++;
if (pset[6] == 0x3a) {
pset[6] = 0x30;
pset[5]++;
}
}
for (int i=0; i<21; i++) {
print(pset);
write(38, 0, b->buffer+(38*i));
pset[3]++;
if (pset[3] == 0x3a) {
pset[3] = 0x30;
pset[2]++;
}
}
}
void setCurPos(int x, int y) {
char pset[9] = "\x1b[00;00H";
for (int i=0; i<y;i++) {
pset[3]++;
if (pset[3] == 0x3a) {
pset[3] = 0x30;
pset[2]++;
}
}
for (int i=0; i<x;i++) {
pset[6]++;
if (pset[6] == 0x3a) {
pset[6] = 0x30;
pset[5]++;
}
}
print(pset);
}
void readline(int count, char* buffer) {
int index = 0;
char c;
while (index < count) {
if (read(1, 1, &c)) {
if (c == '\n')
break;
if (c == '\b') {
if (index == 0)
continue;
else {
index--;
buffer[index] = 0;
write(1, 0, &c);
continue;
}
}
buffer[index++] = c;
write(1, 0, &c);
}
}
}
bool strcmp(char* a, char* b) {
int index=0;
while (a[index])
if (a[index] == b[index])
index++;
else
return false;
return true;
}
bool strcmpcnt(int count, char* a, char* b) {
int index=0;
while (index < count)
if (a[index] == b[index])
index++;
else
return false;
return true;
}
int main() {
bindToKeyboard();
char space = ' ';
char plus = '+';
print("\x1b[1;1H");
for (int i=0; i < 1000; i++)
write(1, 0, &space);
print("\x1b[1;1H");
char* mid = "+ ++ +";
char* bottom = "+ +";
for (int i=0; i<80;i++)
write(1, 0, &plus);
for (int i=0; i<21;i++)
write(80, 0, mid);
for (int i=0; i<80;i++)
write(1, 0, &plus);
write(80, 0, bottom);
for (int i=0; i<80;i++)
write(1, 0, &plus);
uint32_t program = fopen("hello.bin");
uint32_t p1 = fork(program);
uint32_t p1out = bindStdout(p1);
uint32_t p1in = bindStdin(p1);
fclose(program);
program = fopen("hello.bin");
uint32_t p2 = fork(program);
uint32_t p2out = bindStdout(p2);
uint32_t p2in = bindStdin(p2);
fclose(program);
procbuffer b1 = {
.buffer = localalloc(21 * 38),
.x = 0,
.y = 0,
.process = p1,
.stdin = p1in,
.stdout = p1out
};
procbuffer b2 = {
.buffer = localalloc(21 * 38),
.x = 0,
.y = 0,
.process = p2,
.stdin = p2in,
.stdout = p2out
};
procbuffer* selectedBuf = &b1;
writeStrToBuf("XoSH (Xnoe SHell) v0.0.1\nPress : to use commands.\n :help for help.\n", &b1);
while (1) {
char c;
if (read(1, b1.stdout, &c))
writeToBuf(c, &b1);
if (read(1, b2.stdout, &c))
writeToBuf(c, &b2);
if (read(1, 1, &c)) {
if (c == ':') {
char buf[32] = {0};
print("\x1b[24;2H");
print(": ");
print("\x1b[24;3H");
readline(32, buf);
if (strcmpcnt(6, buf, "switch")) {
if (selectedBuf == &b1) {
selectedBuf = &b2;
} else {
selectedBuf = &b1;
}
} else if (strcmpcnt(4, buf, "help")) {
writeStrToBuf("\n--------\n", selectedBuf);
writeStrToBuf(":help\n", selectedBuf);
writeStrToBuf(" Displays this message.\n", selectedBuf);
writeStrToBuf(":switch\n", selectedBuf);
writeStrToBuf(" Switches which process you're using\n", selectedBuf);
writeStrToBuf(":kill\n", selectedBuf);
writeStrToBuf(" Kills the current process\n", selectedBuf);
writeStrToBuf(":load <filename>\n", selectedBuf);
writeStrToBuf(" Loads and executes the program <filename>\n", selectedBuf);
writeStrToBuf("--------\n", selectedBuf);
}
} else {
write(1, selectedBuf->stdin, &c);
}
}
displayBuf(&b1, 2, 2);
displayBuf(&b2, 42, 2);
}
}