prosperon/source/engine/script.c
2022-12-22 22:58:06 +00:00

132 lines
2.8 KiB
C

#include "script.h"
#include "stdio.h"
#include "log.h"
#include "mrbffi.h"
#include "stb_ds.h"
s7_scheme *s7 = NULL;
static void null_port(s7_scheme *sc, uint8_t c, s7_pointer port) {
}
static void my_err(s7_scheme *sc, uint8_t c, s7_pointer port) {
static char buffer[1024];
static char *p = buffer;
if (c != '\n' && p != &buffer[1023]) {
*p = c;
p++;
} else {
*p = '\0';
if (buffer[0] != '\n')
YughError(buffer);
p = buffer;
//YughInfo("File %s, line %d", s7_port_filename(sc, port), s7_port_line_number(sc, port));
int lost = s7_flush_output_port(sc, port);
}
}
static void my_print(s7_scheme *sc, uint8_t c, s7_pointer port) {
static char buffer[1024];
static char *p = buffer;
if (c != '\n' && p != &buffer[1023]) {
*p = c;
p++;
} else {
*p = '\0';
YughInfo(buffer);
p = buffer;
}
}
void script_init() {
s7 = s7_init();
s7_set_current_error_port(s7, s7_open_output_function(s7, my_err));
s7_set_current_output_port(s7, s7_open_output_function(s7, my_print));
ffi_load();
}
void script_run(const char *script) {
s7_eval_c_string(s7, script);
}
int script_dofile(const char *file) {
if (!s7_load(s7, file)) {
YughError("Can't find file %s.", file);
return 1;
}
return 0;
}
/* Call the "update" function in the master game script */
void script_update(double dt) {
}
/* Call the "draw" function in master game script */
void script_draw() {
}
/* Call "editor" function in master game script */
void script_editor() {
}
void script_call(const char *f) {
s7_call(s7, s7_name_to_value(s7, f), s7_nil(s7));
}
void script_eval_w_env(const char *s, s7_pointer env) {
char buffer[512];
snprintf(buffer, 512-1, "(%s)", s);
s7_set_current_error_port(s7, s7_open_output_function(s7, null_port));
s7_eval_c_string_with_environment(s7, buffer, env);
s7_set_current_error_port(s7, s7_open_output_function(s7, my_err));
}
void script_call_sym(s7_pointer sym)
{
s7_call(s7, sym, s7_nil(s7));
}
int script_has_sym(s7_pointer sym) {
return 1;
}
s7_pointer *updates;
s7_pointer *guis;
s7_pointer *physics;
void register_update(s7_pointer sym) {
arrput(updates, sym);
}
void call_updates(double dt) {
for (int i = 0; i < arrlen(updates); i++)
s7_call(s7, updates[i], s7_cons(s7, s7_make_real(s7, dt), s7_nil(s7)));
}
void register_gui(s7_pointer sym) {
arrput(guis, sym);
}
void call_gui() {
for (int i = 0; i < arrlen(guis); i++)
script_call_sym(guis[i]);
}
void register_physics(s7_pointer sym) {
arrput(physics, sym);
}
void call_physics(double dt) {
for (int i = 0; i < arrlen(physics); i++)
s7_call(s7, physics[i], s7_cons(s7, s7_make_real(s7, dt), s7_nil(s7)));
}