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Add Color.lightened and Color.darkened (like LESS.css or SASS)

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Kyle Van Berendonck 2017-10-13 15:49:31 +11:00 committed by Kyle Van Berendonck
parent c846e49a7d
commit 8e4336a729
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GPG key ID: 8694C540164A38D2
3 changed files with 48 additions and 0 deletions
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18
core/color.h
View file

@ -101,6 +101,24 @@ struct Color {
return res; return res;
} }
_FORCE_INLINE_ Color darkened(float p_amount) const {
Color res = *this;
res.r = CLAMP(res.r * (1.0f - p_amount), 0.0, 1.0);
res.g = CLAMP(res.g * (1.0f - p_amount), 0.0, 1.0);
res.b = CLAMP(res.b * (1.0f - p_amount), 0.0, 1.0);
return res;
}
_FORCE_INLINE_ Color lightened(float p_amount) const {
Color res = *this;
res.r = CLAMP(res.r + (1.0f - res.r) * p_amount, 0.0, 1.0);
res.g = CLAMP(res.g + (1.0f - res.g) * p_amount, 0.0, 1.0);
res.b = CLAMP(res.b + (1.0f - res.b) * p_amount, 0.0, 1.0);
return res;
}
_FORCE_INLINE_ uint32_t to_rgbe9995() const { _FORCE_INLINE_ uint32_t to_rgbe9995() const {
const float pow2to9 = 512.0f; const float pow2to9 = 512.0f;

4
core/variant_call.cpp
View file

@ -437,6 +437,8 @@ struct _VariantCall {
VCALL_LOCALMEM0R(Color, contrasted); VCALL_LOCALMEM0R(Color, contrasted);
VCALL_LOCALMEM2R(Color, linear_interpolate); VCALL_LOCALMEM2R(Color, linear_interpolate);
VCALL_LOCALMEM1R(Color, blend); VCALL_LOCALMEM1R(Color, blend);
VCALL_LOCALMEM1R(Color, lightened);
VCALL_LOCALMEM1R(Color, darkened);
VCALL_LOCALMEM1R(Color, to_html); VCALL_LOCALMEM1R(Color, to_html);
VCALL_LOCALMEM0R(RID, get_id); VCALL_LOCALMEM0R(RID, get_id);
@ -1581,6 +1583,8 @@ void register_variant_methods() {
ADDFUNC0R(COLOR, COLOR, Color, contrasted, varray()); ADDFUNC0R(COLOR, COLOR, Color, contrasted, varray());
ADDFUNC2R(COLOR, COLOR, Color, linear_interpolate, COLOR, "b", REAL, "t", varray()); ADDFUNC2R(COLOR, COLOR, Color, linear_interpolate, COLOR, "b", REAL, "t", varray());
ADDFUNC1R(COLOR, COLOR, Color, blend, COLOR, "over", varray()); ADDFUNC1R(COLOR, COLOR, Color, blend, COLOR, "over", varray());
ADDFUNC1R(COLOR, COLOR, Color, lightened, REAL, "amount", varray());
ADDFUNC1R(COLOR, COLOR, Color, darkened, REAL, "amount", varray());
ADDFUNC1R(COLOR, STRING, Color, to_html, BOOL, "with_alpha", varray(true)); ADDFUNC1R(COLOR, STRING, Color, to_html, BOOL, "with_alpha", varray(true));
ADDFUNC0R(_RID, INT, RID, get_id, varray()); ADDFUNC0R(_RID, INT, RID, get_id, varray());

26
doc/classes/Color.xml
View file

@ -126,6 +126,32 @@
[/codeblock] [/codeblock]
</description> </description>
</method> </method>
<method name="lightened">
<return type="Color">
</return>
<argument index="0" name="amount" type="float">
</argument>
<description>
Returns a new color resulting from making this color lighter by the specified percentage (0-1).
[codeblock]
var green = Color(0.0, 1.0, 0.0)
var lightgreen = green.lightened(0.2) # 20% lighter than regular green
[/codeblock]
</description>
</method>
<method name="darkened">
<return type="Color">
</return>
<argument index="0" name="amount" type="float">
</argument>
<description>
Returns a new color resulting from making this color darker by the specified percentage (0-1).
[codeblock]
var green = Color(0.0, 1.0, 0.0)
var darkgreen = green.darkened(0.2) # 20% darker than regular green
[/codeblock]
</description>
</method>
<method name="linear_interpolate"> <method name="linear_interpolate">
<return type="Color"> <return type="Color">
</return> </return>