1 /**
2 A $(D Color) function to be used within the visual shader graph.
3 
4 Copyright:
5 Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.  
6 Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)  
7 Copyright (c) 2017-2018 Godot-D contributors  
8 
9 License: $(LINK2 https://opensource.org/licenses/MIT, MIT License)
10 
11 
12 */
13 module godot.visualshadernodecolorfunc;
14 import std.meta : AliasSeq, staticIndexOf;
15 import std.traits : Unqual;
16 import godot.d.traits;
17 import godot.core;
18 import godot.c;
19 import godot.d.bind;
20 import godot.d.reference;
21 import godot.globalenums;
22 import godot.object;
23 import godot.classdb;
24 import godot.visualshadernode;
25 import godot.resource;
26 import godot.reference;
27 /**
28 A $(D Color) function to be used within the visual shader graph.
29 
30 Accept a $(D Color) to the input port and transform it according to $(D _function).
31 */
32 @GodotBaseClass struct VisualShaderNodeColorFunc
33 {
34 	package(godot) enum string _GODOT_internal_name = "VisualShaderNodeColorFunc";
35 public:
36 @nogc nothrow:
37 	union { /** */ godot_object _godot_object; /** */ VisualShaderNode _GODOT_base; }
38 	alias _GODOT_base this;
39 	alias BaseClasses = AliasSeq!(typeof(_GODOT_base), typeof(_GODOT_base).BaseClasses);
40 	package(godot) __gshared bool _classBindingInitialized = false;
41 	package(godot) static struct GDNativeClassBinding
42 	{
43 		__gshared:
44 		@GodotName("get_function") GodotMethod!(VisualShaderNodeColorFunc.Function) getFunction;
45 		@GodotName("set_function") GodotMethod!(void, long) setFunction;
46 	}
47 	/// 
48 	pragma(inline, true) bool opEquals(in VisualShaderNodeColorFunc other) const
49 	{ return _godot_object.ptr is other._godot_object.ptr; }
50 	/// 
51 	pragma(inline, true) typeof(null) opAssign(typeof(null) n)
52 	{ _godot_object.ptr = n; return null; }
53 	/// 
54 	pragma(inline, true) bool opEquals(typeof(null) n) const
55 	{ return _godot_object.ptr is n; }
56 	/// 
57 	size_t toHash() const @trusted { return cast(size_t)_godot_object.ptr; }
58 	mixin baseCasts;
59 	/// Construct a new instance of VisualShaderNodeColorFunc.
60 	/// Note: use `memnew!VisualShaderNodeColorFunc` instead.
61 	static VisualShaderNodeColorFunc _new()
62 	{
63 		static godot_class_constructor constructor;
64 		if(constructor is null) constructor = _godot_api.godot_get_class_constructor("VisualShaderNodeColorFunc");
65 		if(constructor is null) return typeof(this).init;
66 		return cast(VisualShaderNodeColorFunc)(constructor());
67 	}
68 	@disable new(size_t s);
69 	/// 
70 	enum Function : int
71 	{
72 		/**
73 		Converts the color to grayscale using the following formula:
74 		
75 		
76 		vec3 c = input;
77 		float max1 = max(c.r, c.g);
78 		float max2 = max(max1, c.b);
79 		float max3 = max(max1, max2);
80 		return vec3(max3, max3, max3);
81 		
82 		
83 		*/
84 		funcGrayscale = 0,
85 		/**
86 		Applies sepia tone effect using the following formula:
87 		
88 		
89 		vec3 c = input;
90 		float r = (c.r * 0.393) + (c.g * 0.769) + (c.b * 0.189);
91 		float g = (c.r * 0.349) + (c.g * 0.686) + (c.b * 0.168);
92 		float b = (c.r * 0.272) + (c.g * 0.534) + (c.b * 0.131);
93 		return vec3(r, g, b);
94 		
95 		
96 		*/
97 		funcSepia = 1,
98 	}
99 	/// 
100 	enum Constants : int
101 	{
102 		funcGrayscale = 0,
103 		funcSepia = 1,
104 	}
105 	/**
106 	
107 	*/
108 	VisualShaderNodeColorFunc.Function getFunction() const
109 	{
110 		checkClassBinding!(typeof(this))();
111 		return ptrcall!(VisualShaderNodeColorFunc.Function)(GDNativeClassBinding.getFunction, _godot_object);
112 	}
113 	/**
114 	
115 	*/
116 	void setFunction(in long func)
117 	{
118 		checkClassBinding!(typeof(this))();
119 		ptrcall!(void)(GDNativeClassBinding.setFunction, _godot_object, func);
120 	}
121 	/**
122 	A function to be applied to the input color. See $(D _function) for options.
123 	*/
124 	@property VisualShaderNodeColorFunc.Function _function()
125 	{
126 		return getFunction();
127 	}
128 	/// ditto
129 	@property void _function(long v)
130 	{
131 		setFunction(v);
132 	}
133 }