Pixel-Composer/scripts/node_path_trim/node_path_trim.gml
2025-01-16 10:39:54 +07:00

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function Node_Path_Trim(_x, _y, _group = noone) : Node(_x, _y, _group) constructor {
name = "Trim Path";
setDimension(96, 48);
newInput(0, nodeValue_PathNode("Path", self, noone))
.setVisible(true, true);
newInput(1, nodeValue_Slider_Range("Range", self, [ 0, 1 ]));
newOutput(0, nodeValue_Output("Path", self, VALUE_TYPE.pathnode, self));
cached_pos = ds_map_create();
curr_path = noone;
is_path = false;
curr_range = noone;
static drawOverlay = function(hover, active, _x, _y, _s, _mx, _my, _snx, _sny) {
if(curr_path && struct_has(curr_path, "drawOverlay"))
curr_path.drawOverlay(hover, active, _x, _y, _s, _mx, _my, _snx, _sny);
draw_set_color(COLORS._main_icon);
var _amo = getLineCount();
for( var i = 0; i < _amo; i++ ) {
var _len = getLength(_amo);
var _stp = 1 / clamp(_len * _s, 1, 64);
var ox, oy, nx, ny;
var _p = new __vec2P();
for( var j = 0; j < 1; j += _stp ) {
_p = getPointRatio(j, i, _p);
nx = _x + _p.x * _s;
ny = _y + _p.y * _s;
if(j > 0) draw_line_width(ox, oy, nx, ny, 3);
ox = nx;
oy = ny;
}
}
}
static getLineCount = function( ) /*=>*/ {return is_path? curr_path.getLineCount() : 1};
static getSegmentCount = function(ind = 0) /*=>*/ {return is_path? curr_path.getSegmentCount(ind) : 0};
static getLength = function(ind = 0) /*=>*/ {return is_path? curr_path.getLength(ind) : 0};
static getAccuLength = function(ind = 0) /*=>*/ {return is_path? curr_path.getAccuLength(ind) : []};
static getBoundary = function(ind = 0) /*=>*/ {return is_path? curr_path.getBoundary(ind) : new BoundingBox( 0, 0, 1, 1 )};
static getPointRatio = function(_rat, ind = 0, out = undefined) {
if(out == undefined) out = new __vec2P(); else { out.x = 0; out.y = 0; }
if(!is_path) return out;
_rat = lerp(curr_range[0], curr_range[1], _rat);
return curr_path.getPointRatio(_rat, ind, out);
}
static getPointDistance = function(_dist, ind = 0, out = undefined) { return getPointRatio(_dist / getLength(), ind, out); }
static update = function() {
curr_path = getInputData(0);
is_path = curr_path != noone && struct_has(curr_path, "getPointRatio");
curr_range = getInputData(1);
ds_map_clear(cached_pos);
outputs[0].setValue(self);
}
static onDrawNode = function(xx, yy, _mx, _my, _s, _hover, _focus) {
var bbox = drawGetBbox(xx, yy, _s);
draw_sprite_fit(s_node_path_trim, 0, bbox.xc, bbox.yc, bbox.w, bbox.h);
}
}