Pixel-Composer/scripts/node_gradient_palette/node_gradient_palette.gml
2024-07-27 12:10:34 +07:00

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function Node_Gradient_Palette(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
name = "Palette to Gradient";
setDimension(96);
inputs[| 0] = nodeValue("Palette", self, JUNCTION_CONNECT.input, VALUE_TYPE.color, array_clone(DEF_PALETTE))
.setDisplay(VALUE_DISPLAY.palette)
.setVisible(true, true);
inputs[| 1] = nodeValue("Custom positions", self, JUNCTION_CONNECT.input, VALUE_TYPE.boolean, false);
inputs[| 2] = nodeValue("Positions", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [], "Array of number indicating color position (0 - 1).")
.setVisible(true, true);
inputs[| 2].array_depth = 1;
inputs[| 3] = nodeValue("Interpolation", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, 1)
.setDisplay(VALUE_DISPLAY.enum_button, [ "None", "RGB", "HSV", "OKLAB", "sRGB" ]);
outputs[| 0] = nodeValue("Gradient", self, JUNCTION_CONNECT.output, VALUE_TYPE.gradient, new gradientObject(cola(c_white)) )
_pal = -1;
static step = function() { #region
var usePos = array_safe_get_fast(current_data, 1);
inputs[| 2].setVisible(usePos, usePos);
} #endregion
static processData = function(_outSurf, _data, _output_index, _array_index) { #region
var pal = _data[0];
var pos_use = _data[1];
var _pos = _data[2];
var type = _data[3];
var grad = new gradientObject();
var len = min(128, array_length(pal));
grad.keys = array_create(len);
var _stp = type == GRADIENT_INTER.none? 1 / (len - 1) : 1 / len;
for( var i = 0; i < len; i++ ) {
var clr = pal[i];
var pos = pos_use? array_safe_get_fast(_pos, i, 0) : i * _stp;
grad.keys[i] = new gradientKey(pos, clr);
}
switch(type) {
case 0 : grad.type = GRADIENT_INTER.none; break;
case 1 : grad.type = GRADIENT_INTER.smooth; break;
case 2 : grad.type = GRADIENT_INTER.hue; break;
case 3 : grad.type = GRADIENT_INTER.oklab; break;
case 4 : grad.type = GRADIENT_INTER.srgb; break;
}
return grad;
} #endregion
static onDrawNode = function(xx, yy, _mx, _my, _s, _hover, _focus) { #region
var bbox = drawGetBbox(xx, yy, _s);
if(bbox.h < 1) return;
var grad = outputs[| 0].getValue();
if(!is_array(grad)) grad = [ grad ];
var _h = array_length(grad) * 32;
var _y = bbox.y0;
var gh = bbox.h / array_length(grad);
for( var i = 0, n = array_length(grad); i < n; i++ ) {
grad[i].draw(bbox.x0, _y, bbox.w, gh);
_y += gh;
}
if(_h != min_h) will_setHeight = true;
min_h = _h;
} #endregion
}