Pixel-Composer/scripts/node_warp/node_warp.gml

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function Node_Warp(_x, _y, _group = noone) : Node_Processor(_x, _y, _group) constructor {
name = "Warp";
inputs[| 0] = nodeValue("Surface in", self, JUNCTION_CONNECT.input, VALUE_TYPE.surface, noone);
inputs[| 1] = nodeValue("Top left", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 0, 0 ] )
.setDisplay(VALUE_DISPLAY.vector)
.setUnitRef(function(index) { return getDimension(index); });
inputs[| 2] = nodeValue("Top right", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ DEF_SURF_W, 0 ] )
.setDisplay(VALUE_DISPLAY.vector)
.setUnitRef(function(index) { return getDimension(index); });
inputs[| 3] = nodeValue("Bottom left", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, [ 0, DEF_SURF_H ] )
.setDisplay(VALUE_DISPLAY.vector)
.setUnitRef(function(index) { return getDimension(index); });
inputs[| 4] = nodeValue("Bottom right", self, JUNCTION_CONNECT.input, VALUE_TYPE.float, DEF_SURF )
.setDisplay(VALUE_DISPLAY.vector)
.setUnitRef(function(index) { return getDimension(index); });
inputs[| 5] = nodeValue("Active", self, JUNCTION_CONNECT.input, VALUE_TYPE.boolean, true);
active_index = 5;
inputs[| 6] = nodeValue("Use custom dimension", self, JUNCTION_CONNECT.input, VALUE_TYPE.boolean, false);
inputs[| 7] = nodeValue("Dimension", self, JUNCTION_CONNECT.input, VALUE_TYPE.integer, DEF_SURF)
.setDisplay(VALUE_DISPLAY.vector);
outputs[| 0] = nodeValue("Surface out", self, JUNCTION_CONNECT.output, VALUE_TYPE.surface, noone);
input_display_list = [ 5,
["Surfaces", false], 0, 6, 7,
["Wrap", false], 1, 2, 3, 4
]
attribute_surface_depth();
attribute_interpolation();
drag_side = -1;
drag_mx = 0;
drag_my = 0;
drag_s = [[0, 0], [0, 0]];
attributes.initalset = LOADING || APPENDING;
warp_surface = array_create(2);
static onValueFromUpdate = function(index) { #region
if(index == 0 && attributes.initalset == false) {
var _surf = getInputData(0);
if(!is_surface(_surf)) return;
var _sw = surface_get_width_safe(_surf);
var _sh = surface_get_height_safe(_surf);
inputs[| 1].setValue([ 0, 0 ]);
inputs[| 2].setValue([ _sw, 0 ]);
inputs[| 3].setValue([ 0, _sh ]);
inputs[| 4].setValue([ _sw, _sh ]);
attributes.initalset = true;
}
} if(!LOADING && !APPENDING) run_in(1, function() { onValueFromUpdate(0); }) #endregion
static step = function() { #region
var _useDim = getInputData(6);
inputs[| 7].setVisible(_useDim);
dimension_index = _useDim? 7 : 0;
} #endregion
static drawOverlay = function(hover, active, _x, _y, _s, _mx, _my, _snx, _sny, params) { #region
PROCESSOR_OVERLAY_CHECK
PROCESSOR_OVERLAY_CHECK
var _surf = outputs[| 0].getValue();
if(is_array(_surf)) {
if(array_length(_surf) == 0) return;
_surf = _surf[preview_index];
}
var tl = array_clone(current_data[1]);
var tr = array_clone(current_data[2]);
var bl = array_clone(current_data[3]);
var br = array_clone(current_data[4]);
tl[0] = _x + tl[0] * _s;
tr[0] = _x + tr[0] * _s;
bl[0] = _x + bl[0] * _s;
br[0] = _x + br[0] * _s;
tl[1] = _y + tl[1] * _s;
tr[1] = _y + tr[1] * _s;
bl[1] = _y + bl[1] * _s;
br[1] = _y + br[1] * _s;
#region preview
var sw = surface_get_width(_surf) * _s;
var sh = surface_get_height(_surf) * _s;
warp_surface[0] = surface_verify(warp_surface[0], params.w, params.h);
warp_surface[1] = surface_verify(warp_surface[1], sw, sh);
surface_set_target(warp_surface[1]);
draw_clear(c_black);
draw_set_color(c_dkgrey);
for(var i = 0; i <= 1; i += 0.125) {
draw_line_width(0, i * sh, sw, i * sh, 2);
draw_line_width(i * sw, 0, i * sw, sh, 2);
}
surface_reset_target();
warpSurface( warp_surface[0], warp_surface[1], params.w, params.h, tl, tr, bl, br, true );
BLEND_ADD
draw_surface(warp_surface[0], 0, 0);
BLEND_NORMAL
#endregion
draw_set_color(COLORS._main_accent);
draw_line(tl[0], tl[1], tr[0], tr[1]);
draw_line(tl[0], tl[1], bl[0], bl[1]);
draw_line(br[0], br[1], tr[0], tr[1]);
draw_line(br[0], br[1], bl[0], bl[1]);
var _hactive = active;
if(point_in_circle(_mx, _my, tl[0], tl[1], 12)) _hactive = false;
if(point_in_circle(_mx, _my, tr[0], tr[1], 12)) _hactive = false;
if(point_in_circle(_mx, _my, bl[0], bl[1], 12)) _hactive = false;
if(point_in_circle(_mx, _my, br[0], br[1], 12)) _hactive = false;
var dx = 0;
var dy = 0;
if(drag_side > -1) {
dx = (_mx - drag_mx) / _s;
dy = (_my - drag_my) / _s;
if(mouse_release(mb_left)) {
drag_side = -1;
UNDO_HOLDING = false;
}
}
#region edit
draw_set_color(COLORS.node_overlay_gizmo_inactive);
if(drag_side == 0) {
draw_line_width(tl[0], tl[1], tr[0], tr[1], 3);
var _tlx = value_snap(drag_s[0][0] + dx, _snx);
var _tly = value_snap(drag_s[0][1] + dy, _sny);
var _trx = value_snap(drag_s[1][0] + dx, _snx);
var _try = value_snap(drag_s[1][1] + dy, _sny);
var _up1 = inputs[| 1].setValue([ _tlx, _tly ]);
var _up2 = inputs[| 2].setValue([ _trx, _try ]);
if(_up1 || _up2) UNDO_HOLDING = true;
} else if(drag_side == 1) {
draw_line_width(tl[0], tl[1], bl[0], bl[1], 3);
var _tlx = value_snap(drag_s[0][0] + dx, _snx);
var _tly = value_snap(drag_s[0][1] + dy, _sny);
var _blx = value_snap(drag_s[1][0] + dx, _snx);
var _bly = value_snap(drag_s[1][1] + dy, _sny);
var _up1 = inputs[| 1].setValue([ _tlx, _tly ]);
var _up3 = inputs[| 3].setValue([ _blx, _bly ]);
if(_up1 || _up3) UNDO_HOLDING = true;
} else if(drag_side == 2) {
draw_line_width(br[0], br[1], tr[0], tr[1], 3);
var _brx = value_snap(drag_s[0][0] + dx, _snx);
var _bry = value_snap(drag_s[0][1] + dy, _sny);
var _trx = value_snap(drag_s[1][0] + dx, _snx);
var _try = value_snap(drag_s[1][1] + dy, _sny);
var _up4 = inputs[| 4].setValue([ _brx, _bry ]);
var _up2 = inputs[| 2].setValue([ _trx, _try ]);
if(_up4 || _up2) UNDO_HOLDING = true;
} else if(drag_side == 3) {
draw_line_width(br[0], br[1], bl[0], bl[1], 3);
var _brx = value_snap(drag_s[0][0] + dx, _snx);
var _bry = value_snap(drag_s[0][1] + dy, _sny);
var _blx = value_snap(drag_s[1][0] + dx, _snx);
var _bly = value_snap(drag_s[1][1] + dy, _sny);
var _up4 = inputs[| 4].setValue([ _brx, _bry ]);
var _up3 = inputs[| 3].setValue([ _blx, _bly ]);
if(_up4 || _up3) UNDO_HOLDING = true;
} else if(_hactive) {
draw_set_color(COLORS._main_accent);
if(distance_to_line_infinite(_mx, _my, tl[0], tl[1], tr[0], tr[1]) < 12) {
draw_line_width(tl[0], tl[1], tr[0], tr[1], 3);
if(mouse_press(mb_left)) {
drag_side = 0;
drag_mx = _mx;
drag_my = _my;
drag_s = [ current_data[1], current_data[2] ];
}
} else if(distance_to_line_infinite(_mx, _my, tl[0], tl[1], bl[0], bl[1]) < 12) {
draw_line_width(tl[0], tl[1], bl[0], bl[1], 3);
if(mouse_press(mb_left)) {
drag_side = 1;
drag_mx = _mx;
drag_my = _my;
drag_s = [ current_data[1], current_data[3] ];
}
} else if(distance_to_line_infinite(_mx, _my, br[0], br[1], tr[0], tr[1]) < 12) {
draw_line_width(br[0], br[1], tr[0], tr[1], 3);
if(mouse_press(mb_left)) {
drag_side = 2;
drag_mx = _mx;
drag_my = _my;
drag_s = [ current_data[4], current_data[2] ];
}
} else if(distance_to_line_infinite(_mx, _my, br[0], br[1], bl[0], bl[1]) < 12) {
draw_line_width(br[0], br[1], bl[0], bl[1], 3);
if(mouse_press(mb_left)) {
drag_side = 3;
drag_mx = _mx;
drag_my = _my;
drag_s = [ current_data[4], current_data[3] ];
}
}
}
if(inputs[| 1].drawOverlay(hover, active, _x, _y, _s, _mx, _my, _snx, _sny)) active = false;
if(inputs[| 2].drawOverlay(hover, active, _x, _y, _s, _mx, _my, _snx, _sny)) active = false;
if(inputs[| 3].drawOverlay(hover, active, _x, _y, _s, _mx, _my, _snx, _sny)) active = false;
if(inputs[| 4].drawOverlay(hover, active, _x, _y, _s, _mx, _my, _snx, _sny)) active = false;
#endregion
} #endregion
static warpSurface = function(surf, warp, sw, sh, tl, tr, bl, br, filt = false) { #region
var teq = round(tl[1]) == round(tr[1]);
var beq = round(bl[1]) == round(br[1]);
var leq = round(tl[0]) == round(bl[0]);
var req = round(tr[0]) == round(br[0]);
if(teq && beq && leq && req) {
surface_set_shader(surf)
shader_set_interpolation(warp);
if(filt) gpu_set_tex_filter(true);
draw_surface_stretched_safe(warp, tl[0], tl[1], tr[0] - tl[0], bl[1] - tl[1]);
if(filt) gpu_set_tex_filter(false);
surface_reset_shader();
} else {
surface_set_shader(surf, sh_warp_4points);
shader_set_interpolation(warp);
shader_set_f("dimension", surface_get_dimension(warp));
shader_set_f("p0", br[0] / sw, br[1] / sh);
shader_set_f("p1", tr[0] / sw, tr[1] / sh);
shader_set_f("p2", tl[0] / sw, tl[1] / sh);
shader_set_f("p3", bl[0] / sw, bl[1] / sh);
if(filt) gpu_set_tex_filter(true);
draw_surface_stretched(warp, 0, 0, sw, sh);
if(filt) gpu_set_tex_filter(false);
surface_reset_shader();
}
} #endregion
static processData = function(_outSurf, _data, _output_index, _array_index) { #region
var tl = _data[1];
var tr = _data[2];
var bl = _data[3];
var br = _data[4];
var _useDim = _data[6];
var _dim = _data[7];
var sw = _useDim? _dim[0] : surface_get_width_safe(_data[0]);
var sh = _useDim? _dim[1] : surface_get_height_safe(_data[0]);
warpSurface(_outSurf, _data[0], sw, sh, tl, tr, bl, br);
return _outSurf;
} #endregion
}