Pixel-Composer/scripts/node_equation/node_equation.gml

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function Node_create_Equation(_x, _y, _group = noone, _param = {}) {
var query = struct_try_get(_param, "query", "");
var node = new Node_Equation(_x, _y, _group).skipDefault();
if(query == "") return node;
node.inputs[| 0].setValue(query);
var ind = 1;
var amo = string_length(query);
var str = "";
var pres = global.EQUATION_PRES;
var vars = [];
for( var ind = 1; ind <= amo; ind++ ) {
var ch = string_char_at(query, ind);
if(ds_map_exists(pres, ch) || ch == "(" || ch == ")") {
if(str != "" && str != toNumber(str))
array_push_unique(vars, str);
str = "";
} else
str += ch;
}
if(str != "" && str != toNumber(str))
array_push_unique(vars, str);
for( var i = 0, n = array_length(vars); i < n; i++ )
node.inputs[| 1 + i * 2].setValue(vars[i]);
return node;
}
function Node_Equation(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
name = "Equation";
color = COLORS.node_blend_number;
draw_pad_w = 10;
setDimension(96, 48);
ast = [];
attributes.size = 0;
inputs[| 0] = nodeValue("Equation", self, JUNCTION_CONNECT.input, VALUE_TYPE.text, "");
outputs[| 0] = nodeValue("Result", self, JUNCTION_CONNECT.output, VALUE_TYPE.float, 0);
argument_renderer = new Inspector_Custom_Renderer(function(_x, _y, _w, _m, _hover, _focus) { #region
argument_renderer.x = _x;
argument_renderer.y = _y;
argument_renderer.w = _w;
var bw = _w / 2 - ui(4);
var bh = ui(36);
if(buttonTextIconInstant(true, THEME.button_hide, _x, _y + ui(8), bw, bh, _m, _focus, _hover, "", THEME.add, __txt("Add"), COLORS._main_value_positive) == 2) {
attributes.size++;
refreshDynamicInput();
update();
}
var amo = attributes.size;
if(buttonTextIconInstant(attributes.size > 0, THEME.button_hide, _x + _w - bw, _y + ui(8), bw, bh, _m, _focus, _hover, "", THEME.minus, __txt("Remove"), COLORS._main_value_negative) == 2) {
attributes.size--;
refreshDynamicInput();
update();
}
var tx = _x + ui(8);
var ty = _y + bh + ui(16);
var hh = bh + ui(16);
var _th = TEXTBOX_HEIGHT;
for( var i = input_fix_len; i < ds_list_size(inputs); i += data_length ) {
var _h = 0;
var _jName = inputs[| i + 0];
_jName.editWidget.setFocusHover(_focus, _hover);
_jName.editWidget.draw(tx, ty, ui(128), _th, _jName.showValue(), _m, _jName.display_type);
draw_set_text(f_p1, fa_center, fa_top, COLORS._main_text_sub);
draw_text_add(tx + ui(128 + 12), ty + ui(6), "=");
var _jValue = inputs[| i + 1];
_jValue.editWidget.setFocusHover(_focus, _hover);
_jValue.editWidget.draw(tx + ui(128 + 24), ty, _w - ui(128 + 24 + 16), _th, _jValue.showValue(), _m);
_h += _th + ui(6);
hh += _h;
ty += _h;
}
argument_renderer.h = hh;
return hh;
}); #endregion
argument_renderer.register = function(parent = noone) { #region
for( var i = input_fix_len; i < ds_list_size(inputs); i++ )
inputs[| i].editWidget.register(parent);
} #endregion
input_display_list = [
["Function", false], 0,
["Arguments", false], argument_renderer,
["Inputs", true],
]
static createNewInput = function() {
var index = ds_list_size(inputs);
inputs[| index + 0] = nodeValue("Argument name", self, JUNCTION_CONNECT.input, VALUE_TYPE.text, "" )
.setDisplay(VALUE_DISPLAY.text_box);
inputs[| index + 1] = nodeValue("Argument value", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, 0 )
.setVisible(true, true);
return inputs[| index + 0];
} setDynamicInput(2, false);
static refreshDynamicInput = function() { #region
var _l = ds_list_create();
var amo = attributes.size;
for(var i = 0; i < input_fix_len; i++ )
ds_list_add(_l, inputs[| i]);
for(var i = 0; i < amo; i++ ) {
var _i = input_fix_len + i * data_length;
if(_i >= ds_list_size(_l))
createNewInput();
for(var j = 0; j < data_length; j++)
ds_list_add(_l, inputs[| _i + j]);
}
input_display_list = array_clone(input_display_list_raw);
for( var i = input_fix_len; i < ds_list_size(_l); i++ ) {
_l[| i].index = i;
array_push(input_display_list, i);
}
ds_list_destroy(inputs);
inputs = _l;
getJunctionList();
setHeight();
} #endregion
static onValueUpdate = function(index = 0) { #region
if(LOADING || APPENDING) return;
if(safe_mod(index - input_fix_len, data_length) == 0) //Variable name
inputs[| index + 1].name = getInputData(index);
} #endregion
static processData = function(_output, _data, _output_index, _array_index = 0) { #region
var eq = _data[0];
var params = {};
for( var i = input_fix_len; i < array_length(_data); i += data_length ) {
var _pName = _data[i + 0];
var _pVal = _data[i + 1];
if(_pName != "")
params[$ _pName] = _pVal;
}
var _tree = array_safe_get_fast(ast, _array_index, noone);
if(_tree == noone || _tree.fx != eq) {
ast[_array_index] = { fx: eq, tree: evaluateFunctionTree(eq) };
_tree = ast[_array_index];
}
if(_tree == noone) return noone;
return _tree.tree.eval(params);
} #endregion
static onDrawNode = function(xx, yy, _mx, _my, _s, _hover, _focus) { #region
draw_set_text(f_sdf, fa_center, fa_center, COLORS._main_text);
var str = getInputData(0);
var bbox = drawGetBbox(xx, yy, _s);
var ss = string_scale(str, bbox.w, bbox.h);
draw_text_transformed(bbox.xc, bbox.yc, str, ss, ss, 0);
} #endregion
static doApplyDeserialize = function() { refreshDynamicInput(); }
}