Pixel-Composer/scripts/__canvas_brush/__canvas_brush.gml
2024-07-04 18:51:04 +07:00

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function canvas_brush() constructor {
brush_sizing = false;
brush_sizing_s = 0;
brush_sizing_mx = 0;
brush_sizing_my = 0;
brush_sizing_dx = 0;
brush_sizing_dy = 0;
brush_use_surface = false;
brush_surface = noone;
brush_size = 1;
brush_dist_min = 1;
brush_dist_max = 1;
brush_direction = 0;
brush_rand_dir = [ 0, 0, 0, 0, 0 ];
brush_seed = irandom_range(100000, 999999);
brush_next_dist = 0;
mouse_pre_dir_x = undefined;
mouse_pre_dir_y = undefined;
node = noone;
colors = [ c_white, c_black ];
function step(hover, active, _x, _y, _s, _mx, _my, _snx, _sny) {
var _brushSurf = node.getInputData(6);
var _brushDist = node.getInputData(15);
var _brushRotD = node.getInputData(16);
var _brushRotR = node.getInputData(17);
var attr = node.tool_attribute;
var _siz = attr.size;
brush_size = _siz;
if(brush_size = PEN_USE && attr.pressure)
brush_size = round(lerp(attr.pressure_size[0], attr.pressure_size[1], power(PEN_PRESSURE / 1024, 2)));
brush_dist_min = max(1, _brushDist[0]);
brush_dist_max = max(1, _brushDist[1]);
if(brush_use_surface) {
if(!is_surface(brush_surface)) {
brush_surface = noone;
brush_use_surface = false;
}
} else
brush_surface = is_surface(_brushSurf)? _brushSurf : noone;
if(!_brushRotD)
brush_direction = 0;
else if(mouse_pre_dir_x == undefined) {
mouse_pre_dir_x = _mx;
mouse_pre_dir_y = _my;
} else if(point_distance(mouse_pre_dir_x, mouse_pre_dir_y, _mx, _my) > _s) {
brush_direction = point_direction(mouse_pre_dir_x, mouse_pre_dir_y, _mx, _my);
mouse_pre_dir_x = _mx;
mouse_pre_dir_y = _my;
}
brush_rand_dir = _brushRotR;
}
function sizing(hover, active, _x, _y, _s, _mx, _my, _snx, _sny) {
var attr = node.tool_attribute;
var _siz = attr.size;
if(brush_sizing) {
var s = brush_sizing_s + (_mx - brush_sizing_mx) / 16;
s = max(1, s);
attr.size = s;
if(mouse_release(mb_right))
brush_sizing = false;
} else if(mouse_press(mb_right, active) && key_mod_press(SHIFT) && brush_surface == noone) {
brush_sizing = true;
brush_sizing_s = _siz;
brush_sizing_mx = _mx;
brush_sizing_my = _my;
brush_sizing_dx = round((_mx - _x) / _s - 0.5);
brush_sizing_dy = round((_my - _y) / _s - 0.5);
}
}
}