Add simple handlebars and pedals.
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2 changed files with 124 additions and 5 deletions
126
Bicycle.js
126
Bicycle.js
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@ -2,22 +2,33 @@
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class Bicycle
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class Bicycle
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{
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{
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constructor(inPos)
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constructor(inPos, inSpeed)
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{
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{
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this.pos = inPos;
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this.pos = inPos;
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this.speed = inSpeed;
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this.wheelLeft = new Wheel(new Vector(-47, 20), 30, 200);
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this.wheelLeft = new Wheel(new Vector(-47, 20), 30, 200);
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this.wheelRight = new Wheel(new Vector(47, 20), 30, 200);
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this.wheelRight = new Wheel(new Vector(47, 20), 30, 200);
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this.mainColour = "#4f32d2";
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this.mainColour = "#4f32d2";
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this.seatColour = "#312b50";
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this.seatColour = "#312b50";
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this.pedalReflectorColour = "rgb(214, 104, 14)"
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this.seatSize = 10;
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this.seatSize = 10;
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this.gearWheelSize = 7;
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this.pedalRadius = 13;
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this.pedalSize = 4;
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this.pedalSpeed = this.speed * 0.02;
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this.pedalRotation = 0;
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}
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}
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update(dt)
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update(dt)
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{
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{
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this.wheelLeft.update(dt);
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this.wheelLeft.update(dt);
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this.wheelRight.update(dt);
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this.wheelRight.update(dt);
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this.pedalRotation += this.pedalSpeed * dt;
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}
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}
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render(context)
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render(context)
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@ -25,12 +36,15 @@ class Bicycle
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context.save();
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context.save();
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context.translate(this.pos.x, this.pos.y);
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context.translate(this.pos.x, this.pos.y);
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var pedalPosition = this.wheelRight.pos.clone().subtract(new Vector(35, 0)),
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seatPosition = pedalPosition.clone().add(new Vector(15, -40));
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this.renderPedalsBack(context, pedalPosition)
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this.wheelLeft.render(context);
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this.wheelLeft.render(context);
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this.wheelRight.render(context);
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this.wheelRight.render(context);
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// Bicycle frame
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// Bicycle frame
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var pedalPosition = this.wheelRight.pos.clone().subtract(new Vector(35, 0)),
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seatPosition = pedalPosition.clone().add(new Vector(15, -40));
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context.beginPath();
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context.beginPath();
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context.moveTo(this.wheelLeft.pos.x, this.wheelLeft.pos.y);
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context.moveTo(this.wheelLeft.pos.x, this.wheelLeft.pos.y);
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context.lineTo(this.wheelLeft.pos.x + 20, this.wheelLeft.pos.y - 52);
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context.lineTo(this.wheelLeft.pos.x + 20, this.wheelLeft.pos.y - 52);
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@ -46,6 +60,16 @@ class Bicycle
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context.strokeStyle = this.mainColour;
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context.strokeStyle = this.mainColour;
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context.stroke();
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context.stroke();
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context.beginPath();
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context.moveTo(this.wheelLeft.pos.x + 20 + 14, this.wheelLeft.pos.y - 52 - 6);
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context.lineTo(this.wheelLeft.pos.x + 20 - 18, this.wheelLeft.pos.y - 52 + 11);
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context.lineWidth = 3;
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context.strokeStyle = this.mainColour;
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context.stroke();
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this.renderPedalsFront(context, pedalPosition);
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this.renderSeat(context, seatPosition);
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this.renderSeat(context, seatPosition);
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context.restore();
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context.restore();
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@ -66,6 +90,102 @@ class Bicycle
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context.restore();
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context.restore();
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}
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}
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renderPedalsFront(context, pos)
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{
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context.save();
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context.translate(pos.x, pos.y);
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// Pedal attachment circle
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context.beginPath();
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context.ellipse(0, 0, this.gearWheelSize * 0.2, this.gearWheelSize * 0.2, 0, 0, Math.PI * 2, false);
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context.lineWidth = 2;
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context.strokeStyle = this.wheelLeft.spokeColour;
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context.stroke();
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context.strokeStyle = "rgba(0, 0, 0, 0.8)";
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context.stroke();
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// Front pedal
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var pedalOuterPosition = new Vector(this.pedalRadius * Math.sin(this.pedalRotation), this.pedalRadius * Math.cos(this.pedalRotation));
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context.beginPath();
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context.moveTo(0, 0);
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context.lineTo(pedalOuterPosition.x, pedalOuterPosition.y);
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context.strokeStyle = this.wheelLeft.spokeColour;
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context.stroke();
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context.strokeStyle = "rgba(0, 0, 0, 0.4)";
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context.stroke();
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this.renderPedal(context, pedalOuterPosition);
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context.restore();
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}
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renderPedalsBack(context, pos)
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{
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context.save();
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context.translate(pos.x, pos.y);
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// Outer gear wheel
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context.beginPath();
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context.ellipse(0, 0, this.gearWheelSize, this.gearWheelSize, 0, 0, Math.PI * 2, false);
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context.lineWidth = 3;
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context.strokeStyle = this.wheelLeft.spokeColour;
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context.stroke();
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// Inner gear wheel
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context.beginPath();
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context.ellipse(0, 0, this.gearWheelSize * 0.8, this.gearWheelSize * 0.8, 0, 0, Math.PI * 2, false);
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context.lineWidth = 2;
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context.strokeStyle = this.wheelLeft.spokeColour;
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context.stroke();
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context.strokeStyle = "rgba(0, 0, 0, 0.4)";
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context.stroke();
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// Back pedal
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var pedalOuterPosition = new Vector(this.pedalRadius * Math.sin(this.pedalRotation + Math.PI), this.pedalRadius * Math.cos(this.pedalRotation + Math.PI));
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context.beginPath();
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context.moveTo(0, 0);
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context.lineTo(pedalOuterPosition.x, pedalOuterPosition.y);
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context.strokeStyle = this.wheelLeft.spokeColour;
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context.stroke();
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context.strokeStyle = "rgba(0, 0, 0, 0.4)";
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context.stroke();
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this.renderPedal(context, pedalOuterPosition);
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context.restore();
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}
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renderPedal(context, pos)
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{
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context.save();
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context.translate(pos.x, pos.y);
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context.beginPath();
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context.moveTo(-this.pedalSize, 0);
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context.lineTo(this.pedalSize, 0);
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context.lineWidth = 3;
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context.strokeStyle = this.mainColour;
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context.stroke();
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context.strokeStyle = "rgba(70, 70, 70, 0.4)";
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context.stroke();
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context.beginPath();
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context.moveTo(-this.pedalSize * 0.5, 0);
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context.lineTo(this.pedalSize * 0.5, 0);
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context.lineWidth = 2;
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context.strokeStyle = this.pedalReflectorColour;
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context.stroke();
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context.restore();
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}
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}
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}
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class Wheel
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class Wheel
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@ -32,8 +32,7 @@ class Renderer
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this.road.speed = this.speed;
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this.road.speed = this.speed;
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this.visibleObjects.push(this.road);
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this.visibleObjects.push(this.road);
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this.bicycle = new Bicycle(new Vector(this.canvas.width / 2, this.canvas.height * 0.9));
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this.bicycle = new Bicycle(new Vector(this.canvas.width / 2, this.canvas.height * 0.9), this.speed);
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this.bicycle.speed = this.speed;
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this.visibleObjects.push(this.bicycle);
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this.visibleObjects.push(this.bicycle);
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}
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}
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