blob: ed69422ad3389e012b33346394afdb269125cb51 [file] [log] [blame]
define(['dart_sdk'], function(dart_sdk) {
'use strict';
const core = dart_sdk.core;
const html = dart_sdk.html;
const math = dart_sdk.math;
const dart = dart_sdk.dart;
const dartx = dart_sdk.dartx;
const _root = Object.create(null);
const sunflower = Object.create(_root);
const circle = Object.create(_root);
const painter = Object.create(_root);
const $getContext = dartx.getContext;
const $addEventListener = dartx.addEventListener;
const $text = dartx.text;
const $arc = dartx.arc;
const $fill = dartx.fill;
let StringToElement = () => (StringToElement = dart.constFn(dart.fnType(html.Element, [core.String])))();
let EventTovoid = () => (EventTovoid = dart.constFn(dart.fnType(dart.void, [html.Event])))();
let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.fnType(dart.void, [])))();
dart.defineLazy(sunflower, {
get SEED_RADIUS() {
return 2;
},
get SCALE_FACTOR() {
return 4;
},
get MAX_D() {
return 300;
},
get centerX() {
return 300 / 2;
},
get centerY() {
return sunflower.centerX;
}
});
sunflower.querySelector = function(selector) {
return html.document.querySelector(selector);
};
dart.fn(sunflower.querySelector, StringToElement());
dart.defineLazy(sunflower, {
get canvas() {
return html.CanvasElement.as(sunflower.querySelector("#canvas"));
},
get context() {
return html.CanvasRenderingContext2D.as(sunflower.canvas[$getContext]('2d'));
},
get slider() {
return html.InputElement.as(sunflower.querySelector("#slider"));
},
get notes() {
return sunflower.querySelector("#notes");
},
get PHI() {
return (math.sqrt(5) + 1) / 2;
},
get seeds() {
return 0;
},
set seeds(_) {}
});
sunflower.main = function() {
sunflower.slider[$addEventListener]('change', dart.fn(e => sunflower.draw(), EventTovoid()));
sunflower.draw();
};
dart.fn(sunflower.main, VoidTovoid());
sunflower.draw = function() {
sunflower.seeds = core.int.parse(sunflower.slider.value);
sunflower.context.clearRect(0, 0, 300, 300);
for (let i = 0; i < dart.notNull(sunflower.seeds); i++) {
let theta = i * painter.TAU / dart.notNull(sunflower.PHI);
let r = math.sqrt(i) * 4;
let x = sunflower.centerX + r * math.cos(theta);
let y = sunflower.centerY - r * math.sin(theta);
new sunflower.SunflowerSeed.new(x, y, 2).draw(sunflower.context);
}
sunflower.notes[$text] = dart.str`${sunflower.seeds} seeds`;
};
dart.fn(sunflower.draw, VoidTovoid());
circle.Circle = class Circle extends core.Object {
get x() {
return this[x$];
}
set x(value) {
super.x = value;
}
get y() {
return this[y$];
}
set y(value) {
super.y = value;
}
get radius() {
return this[radius$];
}
set radius(value) {
super.radius = value;
}
};
(circle.Circle.new = function(x, y, radius) {
this[x$] = x;
this[y$] = y;
this[radius$] = radius;
}).prototype = circle.Circle.prototype;
dart.addTypeTests(circle.Circle);
const x$ = Symbol("Circle.x");
const y$ = Symbol("Circle.y");
const radius$ = Symbol("Circle.radius");
dart.setFieldSignature(circle.Circle, () => ({
__proto__: dart.getFields(circle.Circle.__proto__),
x: dart.finalFieldType(core.num),
y: dart.finalFieldType(core.num),
radius: dart.finalFieldType(core.num)
}));
painter.CirclePainter = class CirclePainter extends core.Object {
get color() {
return this[color];
}
set color(value) {
this[color] = value;
}
draw(context) {
context.beginPath();
context.lineWidth = 2;
context.fillStyle = this.color;
context.strokeStyle = this.color;
context[$arc](this.x, this.y, this.radius, 0, painter.TAU, false);
context[$fill]();
context.closePath();
context.stroke();
}
};
(painter.CirclePainter.new = function() {
this[color] = "orange";
}).prototype = painter.CirclePainter.prototype;
dart.addTypeTests(painter.CirclePainter);
const color = Symbol("CirclePainter.color");
painter.CirclePainter[dart.implements] = () => [circle.Circle];
dart.setMethodSignature(painter.CirclePainter, () => ({
__proto__: dart.getMethods(painter.CirclePainter.__proto__),
draw: dart.fnType(dart.void, [html.CanvasRenderingContext2D])
}));
dart.setFieldSignature(painter.CirclePainter, () => ({
__proto__: dart.getFields(painter.CirclePainter.__proto__),
color: dart.fieldType(core.String)
}));
sunflower.SunflowerSeed = class SunflowerSeed extends dart.mixin(circle.Circle, painter.CirclePainter) {};
(sunflower.SunflowerSeed.new = function(x, y, radius, color) {
if (color === void 0) color = null;
sunflower.SunflowerSeed.__proto__.new.call(this, x, y, radius);
if (color != null) this.color = color;
}).prototype = sunflower.SunflowerSeed.prototype;
dart.addTypeTests(sunflower.SunflowerSeed);
dart.defineLazy(painter, {
get ORANGE() {
return "orange";
},
get RED() {
return "red";
},
get BLUE() {
return "blue";
},
get TAU() {
return math.PI * 2;
}
});
painter.querySelector = function(selector) {
return html.document.querySelector(selector);
};
dart.fn(painter.querySelector, StringToElement());
dart.defineLazy(painter, {
get canvas() {
return html.CanvasElement.as(painter.querySelector("#canvas"));
},
get context() {
return html.CanvasRenderingContext2D.as(painter.canvas[$getContext]('2d'));
}
});
dart.trackLibraries("sunflower", {
"sunflower.dart": sunflower,
"circle.dart": circle,
"painter.dart": painter
}, null);
// Exports:
return {
sunflower: sunflower,
circle: circle,
painter: painter
};
});
//# sourceMappingURL=sunflower.js.map