Pixel-Composer/scripts/tiler_tool_brush/tiler_tool_brush.gml
2024-10-19 17:35:47 +07:00

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function tiler_tool_brush(node, _brush, eraser = false) : tiler_tool(node) constructor {
self.brush = _brush;
isEraser = eraser;
brush_resizable = true;
mouse_cur_x = 0;
mouse_cur_y = 0;
mouse_pre_x = 0;
mouse_pre_y = 0;
mouse_pre_draw_x = undefined;
mouse_pre_draw_y = undefined;
mouse_holding = false;
mouse_line_drawing = false;
mouse_line_x0 = 0;
mouse_line_y0 = 0;
mouse_line_x1 = 0;
mouse_line_y1 = 0;
function step(hover, active, _x, _y, _s, _mx, _my, _snx, _sny) {
brush.brush_erase = isEraser;
mouse_cur_x = floor(round((_mx - _x) / _s - 0.5) / tile_size[0]);
mouse_cur_y = floor(round((_my - _y) / _s - 0.5) / tile_size[1]);
var _auto = brush.autotiler;
if(mouse_pre_draw_x != undefined && mouse_pre_draw_y != undefined && key_mod_presses(SHIFT, CTRL)) {
var _dx = mouse_cur_x - mouse_pre_draw_x;
var _dy = mouse_cur_y - mouse_pre_draw_y;
if(_dx != _dy) {
var _ddx = _dx;
var _ddy = _dy;
if(abs(_dx) > abs(_dy)) {
var _rat = round(_ddx / _ddy);
_ddx = _ddy * _rat;
} else if(abs(_dx) < abs(_dy)) {
var _rat = round(_ddy / _ddx);
_ddy = _ddx * _rat;
}
mouse_cur_x = mouse_pre_draw_x + _ddx - sign(_ddx);
mouse_cur_y = mouse_pre_draw_y + _ddy - sign(_ddy);
}
}
if(mouse_press(mb_left, active)) {
surface_set_target(drawing_surface);
tiler_draw_point_brush(brush, mouse_cur_x, mouse_cur_y);
surface_reset_target();
if(_auto != noone) {
_auto.drawing_start(drawing_surface, isEraser);
tiler_draw_point_brush(brush, mouse_cur_x, mouse_cur_y, false);
_auto.drawing_end();
}
mouse_holding = true;
if(mouse_pre_draw_x != undefined && mouse_pre_draw_y != undefined && key_mod_press(SHIFT)) {
surface_set_target(drawing_surface);
tiler_draw_line_brush(brush, mouse_pre_draw_x, mouse_pre_draw_y, mouse_cur_x, mouse_cur_y);
surface_reset_target();
if(_auto != noone) {
_auto.drawing_start(drawing_surface, isEraser);
tiler_draw_line_brush(brush, mouse_pre_draw_x, mouse_pre_draw_y, mouse_cur_x, mouse_cur_y, false);
_auto.drawing_end();
}
mouse_holding = false;
apply_draw_surface();
}
mouse_pre_draw_x = mouse_cur_x;
mouse_pre_draw_y = mouse_cur_y;
}
if(mouse_holding) {
if(mouse_pre_draw_x != mouse_cur_x || mouse_pre_draw_y != mouse_cur_y) {
surface_set_target(drawing_surface);
tiler_draw_line_brush(brush, mouse_pre_draw_x, mouse_pre_draw_y, mouse_cur_x, mouse_cur_y);
surface_reset_target();
if(_auto != noone) {
_auto.drawing_start(drawing_surface, isEraser);
tiler_draw_line_brush(brush, mouse_pre_draw_x, mouse_pre_draw_y, mouse_cur_x, mouse_cur_y, false);
_auto.drawing_end();
}
}
mouse_pre_draw_x = mouse_cur_x;
mouse_pre_draw_y = mouse_cur_y;
if(mouse_release(mb_left)) {
mouse_holding = false;
apply_draw_surface();
}
}
mouse_pre_x = mouse_cur_x;
mouse_pre_y = mouse_cur_y;
}
function drawPreview() {
mouse_line_drawing = false;
if(mouse_pre_draw_x != undefined && mouse_pre_draw_y != undefined && key_mod_press(SHIFT)) {
tiler_draw_line_brush(brush, mouse_pre_draw_x, mouse_pre_draw_y, mouse_cur_x, mouse_cur_y);
mouse_line_drawing = true;
mouse_line_x0 = min(mouse_cur_x, mouse_pre_draw_x);
mouse_line_y0 = min(mouse_cur_y, mouse_pre_draw_y);
mouse_line_x1 = max(mouse_cur_x, mouse_pre_draw_x) + 1;
mouse_line_y1 = max(mouse_cur_y, mouse_pre_draw_y) + 1;
} else
tiler_draw_point_brush(brush, mouse_cur_x, mouse_cur_y);
}
static drawMask = function() {
draw_set_color(c_white);
tiler_draw_point_brush(brush, mouse_cur_x, mouse_cur_y);
}
}