299 lines
6.7 KiB
JavaScript
299 lines
6.7 KiB
JavaScript
/*
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GUI functions take screen space coordinates
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*/
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var GUI = {
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text(str, pos, size, color, wrap, anchor, cursor) {
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size ??= 1;
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color ??= Color.white;
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wrap ??= -1;
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anchor ??= [0,1];
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cursor ??= -1;
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var bb = cmd(118, str, size, wrap);
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var w = bb.r*2;
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var h = bb.t*2;
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//ui_text draws with an anchor on top left corner
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var p = pos.slice();
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p.x -= w * anchor.x;
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bb.r += (w*anchor.x);
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bb.l += (w*anchor.x);
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p.y += h * (1 - anchor.y);
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bb.t += h*(1-anchor.y);
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bb.b += h*(1-anchor.y);
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ui_text(str, p, size, color, wrap, cursor);
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return bb;
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},
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scissor(x,y,w,h) {
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cmd(140,x,y,w,h);
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},
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scissor_win() { cmd(140,0,0,Window.width,Window.height); },
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image(path,pos,color) {
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color ??= Color.black;
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var wh = cmd(64,path);
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gui_img(path,pos, [1.0,1.0], 0.0, false, [0.0,0.0], Color.white);
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return bbox.fromcwh([0,0], wh);
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},
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input_lmouse_pressed() {
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if (GUI.selected)
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GUI.selected.action();
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},
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input_s_pressed() {
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if (GUI.selected?.down) {
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GUI.selected.selected = false;
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GUI.selected = GUI.selected.down;
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GUI.selected.selected = true;
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}
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},
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input_w_pressed() {
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if (GUI.selected?.up) {
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GUI.selected.selected = false;
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GUI.selected = GUI.selected.up;
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GUI.selected.selected = true;
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}
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},
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input_enter_pressed() {
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if (GUI.selected) {
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GUI.selected.action();
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}
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}
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};
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GUI.controls = {};
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GUI.controls.toString = function() { return "GUI controls"; };
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GUI.controls.update = function() { };
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GUI.controls.set_mum = function(mum)
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{
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mum.selected = true;
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if (this.selected && this.selected !== mum)
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this.selected.selected = false;
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this.selected = mum;
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}
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GUI.controls.check_bb = function(mum)
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{
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if (bbox.pointin(mum.bb, Mouse.screenpos()))
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GUI.controls.set_mum(mum);
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}
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GUI.controls.inputs = {};
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GUI.controls.inputs.fallthru = false;
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GUI.controls.inputs.mouse = {};
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GUI.controls.inputs.mouse.move = function(pos,dpos)
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{
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}
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GUI.controls.inputs.mouse.scroll = function(scroll)
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{
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}
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GUI.controls.check_submit = function() {
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if (this.selected && this.selected.action)
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this.selected.action(this.selected);
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}
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var Mum = {
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padding:[0,0], /* Each element inset with this padding on all sides */
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offset:[0,0],
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font: "fonts/c64.ttf",
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selectable: false,
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selected: false,
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font_size: 1,
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text_align: "left", /* left, center, right */
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scale: 1,
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angle: 0,
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anchor: [0,1],
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hovered: {},
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text_shadow: {
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pos: [0,0],
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color: Color.white,
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},
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text_outline: 1, /* outline in pixels */
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color: Color.white,
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margin: [0,0], /* Distance between elements for things like columns */
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width: 0,
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height: 0,
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max_width: Infinity,
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max_height: Infinity,
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image_repeat: false,
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image_repeat_offset: [0,0],
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debug: false, /* set to true to draw debug boxes */
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make(def) {
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var n = Object.create(this);
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Object.assign(n, def);
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return n;
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},
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prestart() {
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this.hovered.__proto__ = this;
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},
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start() {},
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extend(def) {
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var n = Object.create(this);
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Object.assign(n, def);
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var fn = function(def) {
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var p = n.make(def);
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p.prestart();
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p.start();
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return p;
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};
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fn._int = n;
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return fn;
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},
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}
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Mum.text = Mum.extend({
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draw(cursor, cnt) {
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cursor ??= [0,0];
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cnt ??= Mum;
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if (this.hide) return;
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if (this.selectable) GUI.controls.check_bb(this);
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this.caret ??= -1;
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/* if (!this.bb)
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this.calc_bb(cursor);
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else
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this.update_bb(cursor);
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*/
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var params = this.selected ? this.hovered : this;
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this.width = Math.min(params.max_width, cnt.max_width);
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this.calc_bb(cursor);
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this.height = this.wh.y;
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var aa = [0,1].sub(params.anchor);
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var pos = cursor.add(params.wh.scale(aa)).add(params.offset);
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cmd(263, params.font);
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ui_text(params.str, pos, params.font_size, params.color, this.width, params.caret);
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},
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update_bb(cursor) {
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this.bb = bbox.move(this.bb, cursor.sub(this.wh.scale(this.anchor)));
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},
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calc_bb(cursor) {
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var bb = cmd(118,this.str, this.font_size, this.width);
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this.wh = bbox.towh(bb);
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var pos = cursor.add(this.wh.scale([0,1].sub(this.anchor))).add(this.offset);
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this.bb = bbox.move(bb,pos.add([this.wh.x/2,0]));
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},
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start() {
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this.calc_bb([0,0]);
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},
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});
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Mum.button = Mum.text._int.extend({
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selectable: true,
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color: Color.blue,
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hovered:{
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color: Color.red
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},
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action() { console.warn("Button has no action."); },
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});
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Mum.window = Mum.extend({
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start() {
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this.wh = [this.width, this.height];
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this.bb = bbox.fromcwh([0,0], this.wh);
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},
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draw(cursor, cnt) {
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cursor ??= [0,0];
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cnt ??= Mum;
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var p = cursor.sub(this.wh.scale(this.anchor)).add(this.padding);
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GUI.window(p,this.wh, this.color);
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this.bb = bbox.blwh(p, this.wh);
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GUI.flush();
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GUI.scissor(p.x,p.y,this.wh.x,this.wh.y);
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this.max_width = this.width;
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if (this.selectable) GUI.controls.check_bb(this);
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var pos = [this.bb.l, this.bb.t].add(this.padding);
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this.items.forEach(function(item) {
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if (item.hide) return;
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item.draw(pos.slice(),this);
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}, this);
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GUI.flush();
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GUI.scissor_win();
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},
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});
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Mum.image = Mum.extend({
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start() {
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if (!this.path) {
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console.warn("Mum image needs a path.");
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this.draw = function(){};
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return;
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}
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var tex_wh = cmd(64, this.path);
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this.wh = tex_wh.slice();
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if (this.width !== 0) this.wh.x = this.width;
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if (this.height !== 0) this.wh.y = this.height;
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this.wh = wh.scale(this.scale);
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this.sendscale = [wh.x/tex_wh.x, wh.y/tex_wh.y];
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},
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draw(pos) {
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this.calc_bb(pos);
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gui_img(this.path, pos.sub(this.anchor.scale([this.width, this.height])), this.sendscale, this.angle, this.image_repeat, this.image_repeat_offset, this.color);
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},
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calc_bb(pos) {
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this.bb = bbox.fromcwh(this.wh.scale([0.5,0.5]), wh);
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this.bb = bbox.move(this.bb, pos.sub(this.wh.scale(this.anchor)));
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}
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});
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Mum.column = Mum.extend({
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draw(cursor, cnt) {
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cursor ??= [0,0];
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cnt ??= Mum;
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if (this.hide) return;
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cursor = cursor.add(this.offset);
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this.max_width = cnt.width;
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this.items.forEach(function(item) {
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if (item.hide) return;
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item.draw(cursor, this);
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cursor.y -= item.height;
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cursor.y -= this.padding.y;
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}, this);
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},
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});
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GUI.window = function(pos, wh, color)
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{
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var p = pos.slice();
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p.x += wh.x/2;
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p.y += wh.y/2;
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render.box(p,wh,color);
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}
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GUI.flush = function() { cmd(141); };
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Mum.debug_colors = {
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bounds: Color.red.slice(),
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margin: Color.blue.slice(),
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padding: Color.green.slice()
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};
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Object.values(Mum.debug_colors).forEach(function(v) { v.a = 100; });
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return {
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GUI,
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Mum
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};
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