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Add cartesian to polar conversion functions

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pablotato 2017-10-13 01:15:45 +02:00 committed by Rémi Verschelde
parent fb801d4964
commit 054a2ac579
7 changed files with 132 additions and 22 deletions
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22
doc/classes/@GDScript.xml
View file

@ -138,6 +138,17 @@
Decodes a byte array back to a value.
</description>
</method>
<method name="cartesian2polar">
<return type="Vector2">
</return>
<argument index="0" name="x" type="float">
</argument>
<argument index="1" name="y" type="float">
</argument>
<description>
Converts a 2D point expressed in the cartesian coordinate system (x and y axis) to the polar coordinate system (a distance from the origin and an angle).
</description>
</method>
<method name="ceil">
<return type="float">
</return>
@ -604,6 +615,17 @@
[/codeblock]
</description>
</method>
<method name="polar2cartesian">
<return type="Vector2">
</return>
<argument index="0" name="r" type="float">
</argument>
<argument index="1" name="th" type="float">
</argument>
<description>
Converts a 2D point expressed in the polar coordinate system (a distance from the origin [code]r[/code] and an angle [code]th[/code]) to the cartesian coordinate system (x and y axis).
</description>
</method>
<method name="pow">
<return type="float">
</return>

30
modules/gdscript/gdscript_functions.cpp
View file

@ -84,6 +84,8 @@ const char *GDScriptFunctions::get_func_name(Function p_func) {
"rad2deg",
"linear2db",
"db2linear",
"polar2cartesian",
"cartesian2polar",
"wrapi",
"wrapf",
"max",
@ -408,6 +410,22 @@ void GDScriptFunctions::call(Function p_func, const Variant **p_args, int p_arg_
VALIDATE_ARG_NUM(0);
r_ret = Math::db2linear((double)*p_args[0]);
} break;
case MATH_POLAR2CARTESIAN: {
VALIDATE_ARG_COUNT(2);
VALIDATE_ARG_NUM(0);
VALIDATE_ARG_NUM(1);
double r = *p_args[0];
double th = *p_args[1];
r_ret = Vector2(r * Math::cos(th), r * Math::sin(th));
} break;
case MATH_CARTESIAN2POLAR: {
VALIDATE_ARG_COUNT(2);
VALIDATE_ARG_NUM(0);
VALIDATE_ARG_NUM(1);
double x = *p_args[0];
double y = *p_args[1];
r_ret = Vector2(Math::sqrt(x * x + y * y), Math::atan2(y, x));
} break;
case MATH_WRAP: {
VALIDATE_ARG_COUNT(3);
r_ret = Math::wrapi((int64_t)*p_args[0], (int64_t)*p_args[1], (int64_t)*p_args[2]);
@ -1296,6 +1314,8 @@ bool GDScriptFunctions::is_deterministic(Function p_func) {
case MATH_RAD2DEG:
case MATH_LINEAR2DB:
case MATH_DB2LINEAR:
case MATH_POLAR2CARTESIAN:
case MATH_CARTESIAN2POLAR:
case MATH_WRAP:
case MATH_WRAPF:
case LOGIC_MAX:
@ -1526,6 +1546,16 @@ MethodInfo GDScriptFunctions::get_info(Function p_func) {
mi.return_val.type = Variant::REAL;
return mi;
} break;
case MATH_POLAR2CARTESIAN: {
MethodInfo mi("polar2cartesian", PropertyInfo(Variant::REAL, "r"), PropertyInfo(Variant::REAL, "th"));
mi.return_val.type = Variant::VECTOR2;
return mi;
} break;
case MATH_CARTESIAN2POLAR: {
MethodInfo mi("cartesian2polar", PropertyInfo(Variant::REAL, "x"), PropertyInfo(Variant::REAL, "y"));
mi.return_val.type = Variant::VECTOR2;
return mi;
} break;
case MATH_WRAP: {
MethodInfo mi("wrapi", PropertyInfo(Variant::INT, "value"), PropertyInfo(Variant::INT, "min"), PropertyInfo(Variant::INT, "max"));
mi.return_val.type = Variant::INT;

2
modules/gdscript/gdscript_functions.h
View file

@ -75,6 +75,8 @@ public:
MATH_RAD2DEG,
MATH_LINEAR2DB,
MATH_DB2LINEAR,
MATH_POLAR2CARTESIAN,
MATH_CARTESIAN2POLAR,
MATH_WRAP,
MATH_WRAPF,
LOGIC_MAX,

10
modules/mono/glue/cs_files/Mathf.cs
View file

@ -35,6 +35,11 @@ namespace Godot
return (float)Math.Atan2(x, y);
}
public static Vector2 cartesian2polar(float x, float y)
{
return new Vector2(sqrt(x * x + y * y), atan2(y, x));
}
public static float ceil(float s)
{
return (float)Math.Ceiling(s);
@ -176,6 +181,11 @@ namespace Godot
return val;
}
public static Vector2 polar2cartesian(float r, float th)
{
return new Vector2(r * cos(th), r * sin(th));
}
public static float pow(float x, float y)
{
return (float)Math.Pow(x, y);

50
modules/visual_script/doc_classes/VisualScriptBuiltinFunc.xml
View file

@ -151,68 +151,74 @@
<constant name="MATH_DB2LINEAR" value="39">
Convert the input from decibel volume to linear volume.
</constant>
<constant name="MATH_WRAP" value="40">
<constant name="MATH_POLAR2CARTESIAN" value="40">
Converts a 2D point expressed in the polar coordinate system (a distance from the origin [code]r[/code] and an angle [code]th[/code]) to the cartesian coordinate system (x and y axis).
</constant>
<constant name="MATH_WRAPF" value="41">
<constant name="MATH_CARTESIAN2POLAR" value="41">
Converts a 2D point expressed in the cartesian coordinate system (x and y axis) to the polar coordinate system (a distance from the origin and an angle).
</constant>
<constant name="LOGIC_MAX" value="42">
<constant name="MATH_WRAP" value="42">
</constant>
<constant name="MATH_WRAPF" value="43">
</constant>
<constant name="LOGIC_MAX" value="44">
Return the greater of the two numbers, also known as their maximum.
</constant>
<constant name="LOGIC_MIN" value="43">
<constant name="LOGIC_MIN" value="45">
Return the lesser of the two numbers, also known as their minimum.
</constant>
<constant name="LOGIC_CLAMP" value="44">
<constant name="LOGIC_CLAMP" value="46">
Return the input clamped inside the given range, ensuring the result is never outside it. Equivalent to `min(max(input, range_low), range_high)`
</constant>
<constant name="LOGIC_NEAREST_PO2" value="45">
<constant name="LOGIC_NEAREST_PO2" value="46">
Return the nearest power of 2 to the input.
</constant>
<constant name="OBJ_WEAKREF" value="46">
<constant name="OBJ_WEAKREF" value="47">
Create a [WeakRef] from the input.
</constant>
<constant name="FUNC_FUNCREF" value="47">
<constant name="FUNC_FUNCREF" value="48">
Create a [FuncRef] from the input.
</constant>
<constant name="TYPE_CONVERT" value="48">
<constant name="TYPE_CONVERT" value="49">
Convert between types.
</constant>
<constant name="TYPE_OF" value="49">
<constant name="TYPE_OF" value="50">
Return the type of the input as an integer. Check [enum Variant.Type] for the integers that might be returned.
</constant>
<constant name="TYPE_EXISTS" value="50">
<constant name="TYPE_EXISTS" value="51">
Checks if a type is registered in the [ClassDB].
</constant>
<constant name="TEXT_CHAR" value="51">
<constant name="TEXT_CHAR" value="52">
Return a character with the given ascii value.
</constant>
<constant name="TEXT_STR" value="52">
<constant name="TEXT_STR" value="53">
Convert the input to a string.
</constant>
<constant name="TEXT_PRINT" value="53">
<constant name="TEXT_PRINT" value="54">
Print the given string to the output window.
</constant>
<constant name="TEXT_PRINTERR" value="54">
<constant name="TEXT_PRINTERR" value="55">
Print the given string to the standard error output.
</constant>
<constant name="TEXT_PRINTRAW" value="55">
<constant name="TEXT_PRINTRAW" value="56">
Print the given string to the standard output, without adding a newline.
</constant>
<constant name="VAR_TO_STR" value="56">
<constant name="VAR_TO_STR" value="57">
Serialize a [Variant] to a string.
</constant>
<constant name="STR_TO_VAR" value="57">
<constant name="STR_TO_VAR" value="58">
Deserialize a [Variant] from a string serialized using [VAR_TO_STR].
</constant>
<constant name="VAR_TO_BYTES" value="58">
<constant name="VAR_TO_BYTES" value="59">
Serialize a [Variant] to a [PoolByteArray].
</constant>
<constant name="BYTES_TO_VAR" value="59">
<constant name="BYTES_TO_VAR" value="60">
Deserialize a [Variant] from a [PoolByteArray] serialized using [VAR_TO_BYTES].
</constant>
<constant name="COLORN" value="60">
<constant name="COLORN" value="61">
Return the [Color] with the given name and alpha ranging from 0 to 1. Note: names are defined in color_names.inc.
</constant>
<constant name="FUNC_MAX" value="61">
<constant name="FUNC_MAX" value="62">
The maximum value the [member function] property can have.
</constant>
</constants>

38
modules/visual_script/visual_script_builtin_funcs.cpp
View file

@ -78,6 +78,8 @@ const char *VisualScriptBuiltinFunc::func_name[VisualScriptBuiltinFunc::FUNC_MAX
"rad2deg",
"linear2db",
"db2linear",
"polar2cartesian",
"cartesian2polar",
"wrapi",
"wrapf",
"max",
@ -191,6 +193,8 @@ int VisualScriptBuiltinFunc::get_func_argument_count(BuiltinFunc p_func) {
case MATH_EASE:
case MATH_STEPIFY:
case MATH_RANDOM:
case MATH_POLAR2CARTESIAN:
case MATH_CARTESIAN2POLAR:
case LOGIC_MAX:
case LOGIC_MIN:
case FUNC_FUNCREF:
@ -368,6 +372,18 @@ PropertyInfo VisualScriptBuiltinFunc::get_input_value_port_info(int p_idx) const
case MATH_DB2LINEAR: {
return PropertyInfo(Variant::REAL, "db");
} break;
case MATH_POLAR2CARTESIAN: {
if (p_idx == 0)
return PropertyInfo(Variant::REAL, "r");
else
return PropertyInfo(Variant::REAL, "th");
} break;
case MATH_CARTESIAN2POLAR: {
if (p_idx == 0)
return PropertyInfo(Variant::REAL, "x");
else
return PropertyInfo(Variant::REAL, "y");
} break;
case MATH_WRAP: {
if (p_idx == 0)
return PropertyInfo(Variant::INT, "value");
@ -573,6 +589,10 @@ PropertyInfo VisualScriptBuiltinFunc::get_output_value_port_info(int p_idx) cons
case MATH_DB2LINEAR: {
t = Variant::REAL;
} break;
case MATH_POLAR2CARTESIAN:
case MATH_CARTESIAN2POLAR: {
t = Variant::VECTOR2;
} break;
case MATH_WRAP: {
t = Variant::INT;
} break;
@ -922,6 +942,20 @@ void VisualScriptBuiltinFunc::exec_func(BuiltinFunc p_func, const Variant **p_in
VALIDATE_ARG_NUM(0);
*r_return = Math::db2linear((double)*p_inputs[0]);
} break;
case VisualScriptBuiltinFunc::MATH_POLAR2CARTESIAN: {
VALIDATE_ARG_NUM(0);
VALIDATE_ARG_NUM(1);
double r = *p_inputs[0];
double th = *p_inputs[1];
*r_return = Vector2(r * Math::cos(th), r * Math::sin(th));
} break;
case VisualScriptBuiltinFunc::MATH_CARTESIAN2POLAR: {
VALIDATE_ARG_NUM(0);
VALIDATE_ARG_NUM(1);
double x = *p_inputs[0];
double y = *p_inputs[1];
*r_return = Vector2(Math::sqrt(x * x + y * y), Math::atan2(y, x));
} break;
case VisualScriptBuiltinFunc::MATH_WRAP: {
VALIDATE_ARG_NUM(0);
VALIDATE_ARG_NUM(1);
@ -1294,6 +1328,8 @@ void VisualScriptBuiltinFunc::_bind_methods() {
BIND_ENUM_CONSTANT(MATH_RAD2DEG);
BIND_ENUM_CONSTANT(MATH_LINEAR2DB);
BIND_ENUM_CONSTANT(MATH_DB2LINEAR);
BIND_ENUM_CONSTANT(MATH_POLAR2CARTESIAN);
BIND_ENUM_CONSTANT(MATH_CARTESIAN2POLAR);
BIND_ENUM_CONSTANT(MATH_WRAP);
BIND_ENUM_CONSTANT(MATH_WRAPF);
BIND_ENUM_CONSTANT(LOGIC_MAX);
@ -1381,6 +1417,8 @@ void register_visual_script_builtin_func_node() {
VisualScriptLanguage::singleton->add_register_func("functions/built_in/rad2deg", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_RAD2DEG>);
VisualScriptLanguage::singleton->add_register_func("functions/built_in/linear2db", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_LINEAR2DB>);
VisualScriptLanguage::singleton->add_register_func("functions/built_in/db2linear", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_DB2LINEAR>);
VisualScriptLanguage::singleton->add_register_func("functions/built_in/polar2cartesian", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_POLAR2CARTESIAN>);
VisualScriptLanguage::singleton->add_register_func("functions/built_in/cartesian2polar", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_CARTESIAN2POLAR>);
VisualScriptLanguage::singleton->add_register_func("functions/built_in/wrapi", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_WRAP>);
VisualScriptLanguage::singleton->add_register_func("functions/built_in/wrapf", create_builtin_func_node<VisualScriptBuiltinFunc::MATH_WRAPF>);

2
modules/visual_script/visual_script_builtin_funcs.h
View file

@ -77,6 +77,8 @@ public:
MATH_RAD2DEG,
MATH_LINEAR2DB,
MATH_DB2LINEAR,
MATH_POLAR2CARTESIAN,
MATH_CARTESIAN2POLAR,
MATH_WRAP,
MATH_WRAPF,
LOGIC_MAX,