Pixel-Composer/scripts/node_palette/node_palette.gml

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function Node_create_Palette(_x, _y) {
var node = new Node_Palette(_x, _y);
ds_list_add(PANEL_GRAPH.nodes_list, node);
return node;
}
function Node_Palette(_x, _y) : Node(_x, _y) constructor {
name = "Palette";
previewable = false;
min_h = 0;
w = 96;
min_h = 0;
inputs[| 0] = nodeValue(0, "Palette", self, JUNCTION_CONNECT.input, VALUE_TYPE.color, [ c_white ])
.setDisplay(VALUE_DISPLAY.palette)
.setVisible(false);
inputs[| 1] = nodeValue(1, "Trim range", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 0, 1 ])
.setDisplay(VALUE_DISPLAY.slider_range, [0, 1, 0.01]);
outputs[| 0] = nodeValue(0, "Palette", self, JUNCTION_CONNECT.output, VALUE_TYPE.color, []);
input_display_list = [0,
["Trim", true], 1
];
_pal = -1;
_ran = [0, 1];
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static update = function() {
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var pal = inputs[| 0].getValue();
var ran = inputs[| 1].getValue();
if(pal != _pal) {
_pal = pal;
}
var st = floor(min(ran[0], ran[1]) * array_length(pal));
var en = floor(max(ran[0], ran[1]) * array_length(pal));
var len = max(1, en - st);
var ar = array_create(len);
array_copy(ar, 0, pal, min(array_length(pal) - len, st), len);
outputs[| 0].setValue(ar);
}
static onDrawNode = function(xx, yy, _mx, _my, _s) {
var x0 = xx + 8 * _s;
var x1 = xx + (w - 8) * _s;
var y0 = yy + 20 + 8 * _s;
var y1 = yy + (h - 8) * _s;
if(y1 > y0)
drawPalette(outputs[| 0].getValue(), x0, y0, x1 - x0, y1 - y0);
}
doUpdate();
}