prosperon/scripts/mum.js

265 lines
6.3 KiB
JavaScript

globalThis.mum = {};
var panel;
var selected = undefined;
mum.inputs = {};
mum.inputs.lm = function()
{
if (!selected) return;
if (!selected.action) return;
selected.action();
}
mum.base = {
pos: null, // If set, puts the cursor to this position before drawing the element
offset:[0,0], // Move x,y to the right and down before drawing
padding:[0,0], // Pad inwards after drawing, to prepare for the next element
font: "fonts/c64.ttf",
selectable: false,
selected: false,
font_size: 16,
scale: 1,
angle: 0,
inset: null,
anchor: [0,1], // where to draw the item from, relative to the cursor. [0,1] is from the top left corner. [1,0] is from the bottom right
background_image: null,
slice: null,
hover: {
color: Color.red,
},
text_shadow: {
pos: [0,0],
color: Color.white,
},
border: 0, // Draw a border around the element. For text, an outline.
overflow: "wrap", // how to deal with overflow from parent element
wrap: -1,
text_align: "left", /* left, center, right */
shader: null, // Use this shader, instead of the engine provided one
color: Color.white,
opacity:1,
width:0,
height:0,
max_width: Infinity,
max_height: Infinity,
image_repeat: false,
image_repeat_offset: [0,0],
debug: false, /* set to true to draw debug boxes */
hide: false,
tooltip: null,
}
// data is passed into each function, and various stats are generated
// drawpos: the point to start the drawing from
// wh: an array of [width,height]
// bound: a boundingbox around the drawn UI element
// extent: a boundingbox around the total extents of the element (ie before padding)
function show_debug() { return prosperon.debug && mum.debug; }
mum.debug = false;
var post = function() {};
var posts = [];
mum.style = mum.base;
var cursor = [0,0];
var pre = function(data)
{
if (data.hide) return true;
data.__proto__ = mum.style;
if (data.pos) cursor = data.pos.slice();
data.drawpos = cursor.slice().add(data.offset);
if (data.opacity !== 1) {
data.color = data.color.slice();
data.color[3] = data.opacity;
}
data.wh = [data.width,data.height];
}
var anchor_calc = function(data)
{
var aa = [0,1].sub(data.anchor);
data.drawpos = data.drawpos.add([data.width,data.height]).scale(aa);
}
var end = function(data)
{
cursor = cursor.add(data.padding);
post(data);
}
mum.list = function(fn, data = {})
{
if (pre(data)) return;
var aa = [0,1].sub(data.anchor);
cursor = cursor.add([data.width,data.height].scale(aa)).add(data.offset).add(data.padding);
posts.push(post);
post = mum.list.post.bind(data);
if (show_debug())
render.boundingbox({
t:cursor.y,
b:cursor.y-data.height,
l:cursor.x,
r:cursor.x+data.width
});
//if (data.background_image) mum.image(null, Object.create(data))
if (data.background_image) {
var imgpos = data.pos.slice();
imgpos.y -= data.height/2;
imgpos.x -= data.width/2;
var imgscale = [data.width,data.height];
if (data.slice)
render.slice9(game.texture(data.background_image), imgpos, data.slice, imgscale);
else
render.image(game.texture(data.background_image), imgpos, [data.width,data.height]);
}
fn();
data.bb.l -= data.padding.x;
data.bb.r += data.padding.x;
data.bb.t += data.padding.y;
data.bb.b -= data.padding.y;
if (show_debug())
render.boundingbox(data.bb);
post = posts.pop();
end(data);
}
mum.list.post = function(e)
{
cursor.y -= (e.bb.t - e.bb.b);
cursor.y -= e.padding.y;
if (this.bb)
this.bb = bbox.expand(this.bb,e.bb)
else
this.bb = e.bb;
}
mum.label = function(str, data = {})
{
if (pre(data)) return;
render.set_font(data.font, data.font_size);
data.bb = render.text_bb(str, data.scale, -1, cursor);
data.wh = bbox.towh(data.bb);
var aa = [0,1].sub(data.anchor);
data.drawpos.y -= (data.bb.t-cursor.y);
data.drawpos = data.drawpos.add(data.wh.scale(aa)).add(data.offset);
data.bb = render.text_bb(str, data.scale, data.wrap, data.drawpos);
if (data.action && bbox.pointin(data.bb, input.mouse.screenpos())) {
if (data.hover) {
data.hover.__proto__ = data;
data = data.hover;
selected = data;
}
}
data.bb = render.text(str, data.drawpos, data.scale, data.color, data.wrap);
if (show_debug())
render.boundingbox(data.bb);
end(data);
}
mum.image = function(path, data = {})
{
if (pre(data)) return;
path ??= data.background_image;
var tex = path;
if (typeof path === 'string')
tex = game.texture(path);
data.width ??= tex.width;
data.height ??= tex.height;
var aa = [0,0].sub(data.anchor);
data.drawpos = data.drawpos.add(aa.scale([data.width,data.height]));
if (data.slice)
render.slice9(tex, data.drawpos, data.slice, [data.width,data.height]);
else {
cursor.y -= tex.height*data.scale;
data.bb = render.image(tex, data.drawpos, [data.scale*tex.width, data.scale*tex.height]);
}
end(data);
}
mum.rectangle = function(data = {})
{
if (pre(data)) return;
var aa = [0,0].sub(data.anchor);
data.drawpos = data.drawpos.add(aa.scale([data.width,data.height]));
render.rectangle(data.drawpos, data.drawpos.add([data.width,data.height]), data.color);
end(data);
}
var btnbb;
var btnpost = function()
{
btnbb = data.bb;
}
mum.button = function(str, data = {padding:[4,4], color:Color.black})
{
if (pre(data)) return;
posts.push(post);
post = btnpost;
if (typeof str === 'string')
render.text(str, cursor.add(data.padding), data.scale, data.color);
else
str();
if (data.action && data.hover && bbox.pointin(btnbb, input.mouse.screenpos())) {
data.hover.__proto__ = data;
data = data.hover;
}
render.rectangle([btnbb.l-data.padding.x, btnbb.b-data.padding.y], [btnbb.r+data.padding.y, btnbb.t+data.padding.y], data.color);
data.bb = btnbb;
post = posts.pop();
end(data);
}
mum.window = function(fn, data = {})
{
if (pre(data)) return;
render.rectangle(cursor, cursor.add(data.size), data.color);
cursor.y += data.height;
cursor = cursor.add(data.padding);
fn();
end(data);
}
mum.ex_hud = function()
{
mum.label("TOP LEFT", {pos:[0,game.size.y], anchor:[0,1]});
mum.label("BOTTOM LEFT", {pos:[0,0], anchor:[0,0]});
mum.label("TOP RIGHT", {pos:game.size, anchor:[1,1]});
mum.label("BOTTOM RIGHT", {pos:[game.size.x, 0], anchor:[1,0]});
}