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[python/turtle] Use an init method to reset the turtle

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This commit is contained in:
Romain Goyet
2018-11-16 18:33:05 +01:00
parent a9091c933b
commit 7fc34fe17f
4 changed files with 16 additions and 0 deletions
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8
python/port/mod/turtle/modturtle.cpp
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@@ -5,6 +5,14 @@ extern "C" {
static Turtle sTurtle;
mp_obj_t modturtle___init__() {
sTurtle = Turtle();
/* Note: we don't even bother writing a destructor for Turtle because this
* init function is called once, and only once, per MicroPython init cycle.
* When the previous Turtle object is destroyed, its VM is long gone. */
return mp_const_none;
}
mp_obj_t modturtle_forward(mp_obj_t px) {
sTurtle.forward(mp_obj_get_float(px));
return mp_const_none;

2
python/port/mod/turtle/modturtle.h
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@@ -1,5 +1,7 @@
#include <py/obj.h>
mp_obj_t modturtle___init__();
mp_obj_t modturtle_forward(mp_obj_t px);
mp_obj_t modturtle_backward(mp_obj_t px);
mp_obj_t modturtle_right(mp_obj_t deg);

3
python/port/mod/turtle/modturtle_table.c
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@@ -22,8 +22,11 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_0(modturtle_showturtle_obj, modturtle_showturtle)
STATIC MP_DEFINE_CONST_FUN_OBJ_0(modturtle_hideturtle_obj, modturtle_hideturtle);
STATIC MP_DEFINE_CONST_FUN_OBJ_0(modturtle_isvisible_obj, modturtle_isvisible);
STATIC MP_DEFINE_CONST_FUN_OBJ_0(modturtle___init___obj, modturtle___init__);
STATIC const mp_rom_map_elem_t modturtle_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_turtle) },
{ MP_ROM_QSTR(MP_QSTR___init__), (mp_obj_t)&modturtle___init___obj },
{ MP_ROM_QSTR(MP_QSTR_forward), (mp_obj_t)&modturtle_forward_obj },
{ MP_ROM_QSTR(MP_QSTR_fd), (mp_obj_t)&modturtle_forward_obj },
{ MP_ROM_QSTR(MP_QSTR_backward), (mp_obj_t)&modturtle_backward_obj },

3
python/port/mpconfigport.h
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@@ -35,6 +35,9 @@
// add bunch of once-off options. May need refactoring later
#define MICROPY_CPYTHON_COMPAT (0)
// modturtle needs a hook upon init
#define MICROPY_MODULE_BUILTIN_INIT (1)
// Support for async/await/async for/async with
#define MICROPY_PY_ASYNC_AWAIT (0)