mirror of
https://github.com/DigvijaysinhGohil/Godot-Shader-Lib.git
synced 2025-01-09 18:58:45 +08:00
89 lines
2.1 KiB
GDScript
89 lines
2.1 KiB
GDScript
@tool
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class_name VisualShaderNodeMathsTriangleWave extends VisualShaderNodeCustom
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func _get_name() -> String:
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return "TriangleWave"
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func _get_category() -> String:
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return "Maths/Wave"
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func _get_description() -> String:
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return "Returns a triangle wave from the value of input in. Resulting output values will be between -1 and 1."
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func _get_return_icon_type() -> VisualShaderNode.PortType:
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var vector_index: int = get_option_index(0)
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match vector_index:
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0:
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return PORT_TYPE_SCALAR
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1:
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return PORT_TYPE_VECTOR_2D
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2:
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return PORT_TYPE_VECTOR_3D
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_:
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return PORT_TYPE_VECTOR_4D
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func _get_input_port_count() -> int:
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return 1
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func _get_input_port_name(port: int) -> String:
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return "in"
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func _get_input_port_type(port: int) -> VisualShaderNode.PortType:
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var vector_index: int = get_option_index(0)
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match vector_index:
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0:
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return PORT_TYPE_SCALAR
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1:
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return PORT_TYPE_VECTOR_2D
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2:
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return PORT_TYPE_VECTOR_3D
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_:
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return PORT_TYPE_VECTOR_4D
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func _get_output_port_count() -> int:
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return 1
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func _get_output_port_name(port: int) -> String:
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return "out"
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func _get_output_port_type(port: int) -> VisualShaderNode.PortType:
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var vector_index: int = get_option_index(0)
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match vector_index:
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0:
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return PORT_TYPE_SCALAR
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1:
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return PORT_TYPE_VECTOR_2D
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2:
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return PORT_TYPE_VECTOR_3D
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_:
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return PORT_TYPE_VECTOR_4D
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func _get_property_count() -> int:
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return 1
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func _get_property_default_index(index: int) -> int:
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return 0
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func _get_property_name(index: int) -> String:
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return ""
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func _get_property_options(index: int) -> PackedStringArray:
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return ["Vector1", "Vector2", "Vector3", "Vector4"]
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func _get_code(input_vars: Array[String], output_vars: Array[String], mode: Shader.Mode, type: VisualShader.Type) -> String:
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var input: String
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var vector_index: int = get_option_index(0)
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match vector_index:
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0:
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input = "0.0"
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1:
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input = "vec2(0.0)"
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2:
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input = "vec3(0.0)"
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_:
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input = "vec4(0.0)"
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if input_vars[0]:
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input = input_vars[0]
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return output_vars[0] + " = 2.0 * abs(2.0 * (%s - floor(0.5 + %s))) - 1.0;" % [input, input]
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