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/**
* @file script.c
* Provides script library for using calculator hardware
*
* Copyright (C) 2018 Clyne Sullivan
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <script.h>
#include <builtins.h>
#include <clock.h>
#include <display.h>
#include <display_draw.h>
#include <heap.h>
#include <random.h>
#include <serial.h>
#include <stdlib.h>
#include <keypad.h>
#include <string.h>
#define igetarg_integer(it, n) ((int)igetarg(it, n)->value.f)
int script_puts(instance *it);
int script_gets(instance *it);
int script_delay(instance *it);
int script_rect(instance *it);
int script_ppos(instance *it);
int script_line(instance *it);
int script_color(instance *it);
int script_rand(instance *it);
int script_getkey(instance *it);
int script_pixel(instance *it);
int script_menu(instance *it);
void script_loadlib(instance *it)
{
inew_cfunc(it, "print", script_puts);
inew_cfunc(it, "gets", script_gets);
inew_cfunc(it, "getkey", script_getkey);
inew_cfunc(it, "ppos", script_ppos);
inew_cfunc(it, "pixel", script_pixel);
inew_cfunc(it, "line", script_line);
inew_cfunc(it, "rect", script_rect);
inew_cfunc(it, "color", script_color);
inew_cfunc(it, "rand", script_rand);
inew_cfunc(it, "delay", script_delay);
inew_cfunc(it, "menu", script_menu);
}
int script_menu(instance *it)
{
char listbuf[4];
int nargs = igetarg_integer(it, 0);
float *resps = (float *)calloc(nargs, sizeof(float));
strncpy(listbuf, " : \0", 4);
for (int i = 0; i < nargs; i++) {
listbuf[0] = i + '0';
dsp_puts(listbuf);
dsp_puts((char *)igetarg(it, 1 + i * 2)->value.p);
dsp_puts("\n");
resps[i] = igetarg(it, 2 + i * 2)->value.f;
}
free(resps);
return 0;
}
int script_puts(instance *it)
{
variable *v = igetarg(it, 0);
if (v->type == NUMBER) {
char buf[33];
snprintf(buf, 33, "%f", v->value.f);
dsp_puts(buf);
} else if (v->type == STRING) {
dsp_puts((const char *)v->value.p);
}
return 0;
}
int script_gets(instance *it)
{
char *s = malloc(64);
char c[2] = {0, 0};
int index = 0;
do {
c[0] = serial_get();
s[index] = c[0];
if (c[0] == '\b' || c[0] == 127) {
index--;
if (index > -1) {
dsp_puts("\b");
index--;
}
} else if (c[0] != '\r') {
dsp_puts(c);
}
} while (s[index] != '\r' && index++ < 63);
s[index] = '\0';
variable *r = make_vars(0, s);
ipush(it, (uint32_t)r);
free(s);
return 0;
}
int script_delay(instance *it)
{
int ms = (int)igetarg(it, 0)->value.f;
delay(ms);
return 0;
}
int script_rect(instance *it)
{
dsp_rect(igetarg_integer(it, 0), igetarg_integer(it, 1),
igetarg_integer(it, 2), igetarg_integer(it, 3),
igetarg_integer(it, 4));
return 0;
}
int script_line(instance *it)
{
int x = igetarg_integer(it, 0);
int y = igetarg_integer(it, 1);
int i = igetarg_integer(it, 2);
int j = igetarg_integer(it, 3);
int c = igetarg_integer(it, 4);
dsp_line(x, y, i, j, c);
return 0;
}
int script_ppos(instance *it)
{
dsp_cpos(0, 0);
dsp_coff(igetarg_integer(it, 0), igetarg_integer(it, 1));
return 0;
}
int script_color(instance *it)
{
uint16_t c = dsp_color(igetarg_integer(it, 0), igetarg_integer(it, 1),
igetarg_integer(it, 2));
variable *v = make_varf(0, (float)c);
ipush(it, (uint32_t)v);
return 0;
}
int script_rand(instance *it)
{
unsigned int mod = igetarg_integer(it, 0);
unsigned int val = random_get();
variable *v = make_varf(0, (float)(val % mod));
ipush(it, (uint32_t)v);
return 0;
}
int script_getkey(instance *it)
{
variable *v = make_varf(0, (float)keypad_get());
ipush(it, (uint32_t)v);
return 0;
}
int script_pixel(instance *it)
{
dsp_pixel(igetarg_integer(it, 0), igetarg_integer(it, 1),
igetarg_integer(it, 2));
return 0;
}
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