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[python] Return value for turtle.pensize()

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This commit is contained in:
Jean-Baptiste Boric
2018-10-30 17:34:13 +01:00
parent 9e2437047b
commit 0c94f44399
4 changed files with 44 additions and 29 deletions
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60
python/port/modturtle_impl.cpp
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@@ -171,35 +171,20 @@ mp_obj_t turtle_penup() {
return mp_const_none;
}
mp_obj_t turtle_pensize(mp_obj_t size) {
int s = mp_obj_get_int(size);
if (s < 1) {
s = 1;
}
else if (s > 10) {
s = 10;
mp_obj_t turtle_pensize(size_t n_args, const mp_obj_t *args) {
if (n_args == 0) {
return MP_OBJ_NEW_SMALL_INT(t_dotsize);
}
if (t_dot) {
delete[] t_dot;
int size = mp_obj_get_int(args[0]);
if (size < 1) {
size = 1;
}
else if (size > 10) {
size = 10;
}
t_dot = new uint8_t[s*s];
t_dotsize = s;
float middle = s / 2;
for (int j = 0; j < s; j++) {
for (int i = 0; i < s; i++) {
float distance = sqrt((j - middle)*(j - middle) + (i - middle)*(i - middle)) / (middle+1);
int value = distance * distance * 255;
if (value < 0) {
value = 0;
}
else if (value > 255) {
value = 255;
}
t_dot[j*s + i] = value;
}
}
turtle_initpen(size);
return mp_const_none;
}
@@ -244,11 +229,34 @@ mp_obj_t turtle___init__() {
t_mileage = 0;
t_hidden = false;
turtle_pensize(MP_OBJ_NEW_SMALL_INT(5));
turtle_initpen(5);
return mp_const_none;
}
void turtle_initpen(int size) {
if (t_dot) {
delete[] t_dot;
}
t_dot = new uint8_t[size*size];
t_dotsize = size;
float middle = size / 2;
for (int j = 0; j < size; j++) {
for (int i = 0; i < size; i++) {
float distance = sqrt((j - middle)*(j - middle) + (i - middle)*(i - middle)) / (middle+1);
int value = distance * distance * 255;
if (value < 0) {
value = 0;
}
else if (value > 255) {
value = 255;
}
t_dot[j*size + i] = value;
}
}
}
void turtle_deinit() {
delete[] t_underneath;
t_underneath = nullptr;