Pixel-Composer/scripts/node_path_builder/node_path_builder.gml
2024-01-22 20:23:35 +07:00

124 lines
3.5 KiB
Plaintext

function Node_Path_Builder(_x, _y, _group = noone) : Node(_x, _y, _group) constructor {
name = "Path Builder";
w = 96;
length = [];
lengthAcc = [];
lines = [];
inputs[| 0] = nodeValue("Point array", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [])
.setVisible(true, true)
.setArrayDepth(2);
outputs[| 0] = nodeValue("Path", self, JUNCTION_CONNECT.output, VALUE_TYPE.pathnode, self);
static drawOverlay = function(active, _x, _y, _s, _mx, _my, _snx, _sny) { #region
draw_set_color(COLORS._main_accent);
for( var i = 0, n = array_length(lines); i < n; i++ ) {
var _line = lines[i];
for( var j = 1, m = array_length(_line); j < m; j++ ) {
var p0 = _line[j - 1];
var p1 = _line[j - 0];
draw_line(_x + p0[0] * _s, _y + p0[1] * _s,
_x + p1[0] * _s, _y + p1[1] * _s);
if(j == 1) draw_circle(_x + p0[0] * _s, _y + p0[1] * _s, 4, false);
draw_circle(_x + p1[0] * _s, _y + p1[1] * _s, 4, false);
}
}
} #endregion
static getLineCount = function() { return array_length(lines); }
static getSegmentCount = function() { return array_length(lines); }
static getLength = function(index) { return array_safe_get(length, index); }
static getAccuLength = function(index) { return array_safe_get(lengthAcc, index, []); }
static getPointRatio = function(_rat, _ind = 0, out = undefined) { #region
if(out == undefined) out = new __vec2(); else { out.x = 0; out.y = 0; }
var _p0, _p1;
var _x, _y;
var line = array_safe_get(lines, _ind, []);
var _st = _rat * (array_length(line) - 1);
_p0 = array_safe_get(line, floor(_st) + 0);
_p1 = array_safe_get(line, floor(_st) + 1);
if(!is_array(_p0)) return out;
if(!is_array(_p1)) return out;
out.x = lerp(_p0[0], _p1[0], frac(_st));
out.y = lerp(_p0[1], _p1[1], frac(_st));
return out;
} #endregion
static getPointDistance = function(_dist, ind = 0, out = undefined) { return getPointRatio(_dist / length[ind], ind, out); }
static getBoundary = function() { #region
var boundary = new BoundingBox();
for( var i = 0, n = array_length(lines); i < n; i++ ) {
var _line = lines[i];
for( var j = 0, m = array_length(_line); j < m; j++ )
boundary.addPoint(_line[j][0], _line[j][1]);
}
return boundary;
} #endregion
static update = function() { #region
var _lines = getInputData(0);
if(array_empty(_lines)) return;
lines = _lines;
if(!is_array(_lines[0][0]))
lines = [ lines ];
var _len = array_length(lines);
length = array_create(_len);
lengthAcc = array_create(_len);
for( var i = 0; i < _len; i++ ) {
var _line = lines[i];
var _lngh = 0;
var _lenA = [];
var _ox = _line[0], _nx;
for( var j = 1, m = array_length(_line); j < m; j++ ) {
_nx = _line[j];
var p0x = array_safe_get(_ox, 0);
var p0y = array_safe_get(_ox, 1);
var p1x = array_safe_get(_nx, 0);
var p1y = array_safe_get(_nx, 1);
p0x = is_real(p0x)? p0x : 0;
p0y = is_real(p0y)? p0y : 0;
p1x = is_real(p1x)? p1x : 0;
p1y = is_real(p1y)? p1y : 0;
var dist = point_distance(p0x, p0y, p1x, p1y);
_lngh += dist;
array_push(_lenA, dist);
_ox = _nx;
}
length[i] = _lngh;
lengthAcc[i] = _lenA;
}
outputs[| 0].setValue(self);
} #endregion
static onDrawNode = function(xx, yy, _mx, _my, _s, _hover, _focus) { #region
var bbox = drawGetBbox(xx, yy, _s);
draw_sprite_fit(s_node_path_builder, 0, bbox.xc, bbox.yc, bbox.w, bbox.h);
} #endregion
}