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Add %v for formatting vectors

This commit is contained in:
Marcus Elg 2022-07-31 17:50:02 +02:00
parent 0c5f254956
commit dbc165715b
2 changed files with 164 additions and 5 deletions
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75
core/string/ustring.cpp
View File

@ -4664,6 +4664,71 @@ String String::sprintf(const Array &values, bool *error) const {
in_format = false;
break;
}
case 'v': { // Vector2/3/4/2i/3i/4i
if (value_index >= values.size()) {
return "not enough arguments for format string";
}
int count;
switch (values[value_index].get_type()) {
case Variant::VECTOR2:
case Variant::VECTOR2I: {
count = 2;
} break;
case Variant::VECTOR3:
case Variant::VECTOR3I: {
count = 3;
} break;
case Variant::VECTOR4:
case Variant::VECTOR4I: {
count = 4;
} break;
default: {
return "%v requires a vector type (Vector2/3/4/2i/3i/4i)";
}
}
Vector4 vec = values[value_index];
String str = "(";
for (int i = 0; i < count; i++) {
double val = vec[i];
// Pad decimals out.
String number_str = String::num(ABS(val), min_decimals).pad_decimals(min_decimals);
int initial_len = number_str.length();
// Padding. Leave room for sign later if required.
int pad_chars_count = val < 0 ? min_chars - 1 : min_chars;
String pad_char = pad_with_zeros ? String("0") : String(" ");
if (left_justified) {
number_str = number_str.rpad(pad_chars_count, pad_char);
} else {
number_str = number_str.lpad(pad_chars_count, pad_char);
}
// Add sign if needed.
if (val < 0) {
if (left_justified) {
number_str = number_str.insert(0, "-");
} else {
number_str = number_str.insert(pad_with_zeros ? 0 : number_str.length() - initial_len, "-");
}
}
// Add number to combined string
str += number_str;
if (i < count - 1) {
str += ", ";
}
}
str += ")";
formatted += str;
++value_index;
in_format = false;
break;
}
case 's': { // String
if (value_index >= values.size()) {
return "not enough arguments for format string";
@ -4756,7 +4821,7 @@ String String::sprintf(const Array &values, bool *error) const {
}
break;
}
case '.': { // Float separator.
case '.': { // Float/Vector separator.
if (in_decimals) {
return "too many decimal points in format";
}
@ -4770,8 +4835,12 @@ String String::sprintf(const Array &values, bool *error) const {
return "not enough arguments for format string";
}
if (!values[value_index].is_num()) {
return "* wants number";
Variant::Type value_type = values[value_index].get_type();
if (!values[value_index].is_num() &&
value_type != Variant::VECTOR2 && value_type != Variant::VECTOR2I &&
value_type != Variant::VECTOR3 && value_type != Variant::VECTOR3I &&
value_type != Variant::VECTOR4 && value_type != Variant::VECTOR4I) {
return "* wants number or vector";
}
int size = values[value_index];

94
tests/core/string/test_string.h
View File

@ -803,6 +803,96 @@ TEST_CASE("[String] sprintf") {
REQUIRE(error == false);
CHECK(output == String("fish -99.990000 frog"));
////// VECTORS
// Vector2
format = "fish %v frog";
args.clear();
args.push_back(Variant(Vector2(19.99, 1.00)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (19.990000, 1.000000) frog"));
// Vector3
format = "fish %v frog";
args.clear();
args.push_back(Variant(Vector3(19.99, 1.00, -2.05)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (19.990000, 1.000000, -2.050000) frog"));
// Vector4
format = "fish %v frog";
args.clear();
args.push_back(Variant(Vector4(19.99, 1.00, -2.05, 5.5)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (19.990000, 1.000000, -2.050000, 5.500000) frog"));
// Vector with negative values
format = "fish %v frog";
args.clear();
args.push_back(Variant(Vector2(-19.99, -1.00)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (-19.990000, -1.000000) frog"));
// Vector left-padded
format = "fish %11v frog";
args.clear();
args.push_back(Variant(Vector3(19.99, 1.00, -2.05)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish ( 19.990000, 1.000000, -2.050000) frog"));
// Vector right-padded
format = "fish %-11v frog";
args.clear();
args.push_back(Variant(Vector3(19.99, 1.00, -2.05)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (19.990000 , 1.000000 , -2.050000 ) frog"));
// Vector left-padded with zeros
format = "fish %011v frog";
args.clear();
args.push_back(Variant(Vector3(19.99, 1.00, -2.05)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (0019.990000, 0001.000000, -002.050000) frog"));
// Vector given Vector3i.
format = "fish %v frog";
args.clear();
args.push_back(Variant(Vector3i(19, 1, -2)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (19.000000, 1.000000, -2.000000) frog"));
// Vector with 1 decimals.
format = "fish %.1v frog";
args.clear();
args.push_back(Variant(Vector3(19.99, 1.00, -2.05)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (20.0, 1.0, -2.0) frog"));
// Vector with 12 decimals.
format = "fish %.12v frog";
args.clear();
args.push_back(Variant(Vector3(19.00, 1.00, -2.00)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (19.000000000000, 1.000000000000, -2.000000000000) frog"));
// Vector with no decimals.
format = "fish %.v frog";
args.clear();
args.push_back(Variant(Vector3(19.99, 1.00, -2.05)));
output = format.sprintf(args, &error);
REQUIRE(error == false);
CHECK(output == String("fish (20, 1, -2) frog"));
/////// Strings.
// String
@ -920,14 +1010,14 @@ TEST_CASE("[String] sprintf") {
REQUIRE(error);
CHECK(output == "too many decimal points in format");
// * not a number
// * not a number or vector
format = "fish %*f frog";
args.clear();
args.push_back("cheese");
args.push_back(99.99);
output = format.sprintf(args, &error);
REQUIRE(error);
CHECK(output == "* wants number");
CHECK(output == "* wants number or vector");
// Character too long.
format = "fish %c frog";