Pixel-Composer/scripts/node_dilate/node_dilate.gml

function Node_Dilate(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
	name = "Dilate";
	
	inputs[| 0] = nodeValue("Surface in", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, 0);
	
	inputs[| 1] = nodeValue("Center", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 0, 0 ])
		.setDisplay(VALUE_DISPLAY.vector)
		.setUnitRef(function(index) { return getDimension(index); });
	
	inputs[| 2] = nodeValue("Strength", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 1)
		.setDisplay(VALUE_DISPLAY.slider, { range: [-3, 3, 0.01] })
		.setMappable(11);
	
	inputs[| 3] = nodeValue("Radius", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 16)
		.setMappable(12);
	
	inputs[| 4] = nodeValue("Oversample mode", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 0, "How to deal with pixel outside the surface.\n    - Empty: Use empty pixel\n    - Clamp: Repeat edge pixel\n    - Repeat: Repeat texture.")
		.setDisplay(VALUE_DISPLAY.enum_scroll, [ "Empty", "Clamp", "Repeat" ]);
	
	inputs[| 5] = nodeValue("Mask", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, 0);
	
	inputs[| 6] = nodeValue("Mix", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 1)
		.setDisplay(VALUE_DISPLAY.slider);
	
	inputs[| 7] = nodeValue("Active", self, JUNCTION_CONNECT.input, VALUE_TYPE.boolean, true);
		active_index = 7;
	
	inputs[| 8] = nodeValue("Channel", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 0b1111)
		.setDisplay(VALUE_DISPLAY.toggle, { data: array_create(4, THEME.inspector_channel) });
		
	__init_mask_modifier(5); // inputs 9, 10
	
	//////////////////////////////////////////////////////////////////////////////////////////////////////////
	
	inputs[| 11] = nodeValue("Strength map", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, noone)
		.setVisible(false, false);
	
	inputs[| 12] = nodeValue("Radius map", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, noone)
		.setVisible(false, false);
	
	//////////////////////////////////////////////////////////////////////////////////////////////////////////
	
	outputs[| 0] = nodeValue("Surface out", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
	
	input_display_list = [ 7, 8, 
		["Surfaces", true],	0, 5, 6, 9, 10, 
		["Dilate",	false],	1, 2, 11, 3, 12,
	];
	
	attribute_surface_depth();
	attribute_oversample();
	attribute_interpolation();
	
	static drawOverlay = function(active, _x, _y, _s, _mx, _my, _snx, _sny) { #region
		var pos = getInputData(1);
		
		var px = _x + pos[0] * _s;
		var py = _y + pos[1] * _s;
		
		inputs[| 1].drawOverlay(active, _x, _y, _s, _mx, _my, _snx, _sny);
		inputs[| 3].drawOverlay(active, px, py, _s, _mx, _my, _snx, _sny, 0, 1, THEME.anchor_scale_hori);
	} #endregion
	
	static step = function() { #region
		__step_mask_modifier();
		
		inputs[| 2].mappableStep();
		inputs[| 3].mappableStep();
	} #endregion
	
	static processData = function(_outSurf, _data, _output_index, _array_index) { #region
		var sam    = struct_try_get(attributes, "oversample");
		
		surface_set_shader(_outSurf, sh_dilate);
		shader_set_interpolation(_data[0]);
			shader_set_f("dimension", [ surface_get_width_safe(_data[0]), surface_get_height_safe(_data[0]) ]);
			shader_set_f("center",         _data[1]);
			shader_set_f_map("strength",   _data[2], _data[11], inputs[| 2]);
			shader_set_f_map("radius",     _data[3], _data[12], inputs[| 3]);
			
			shader_set_i("sampleMode", sam);
			draw_surface_safe(_data[0], 0, 0);
		surface_reset_shader();
		
		__process_mask_modifier(_data);
		_outSurf = mask_apply(_data[0], _outSurf, _data[5], _data[6]);
		_outSurf = channel_apply(_data[0], _outSurf, _data[8]);
		
		return _outSurf;
	} #endregion
}