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Added joint debug rendering to Matter Physics postUpdate

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This commit is contained in:
Omar Shehata 2018-03-25 22:44:32 -05:00
parent 2cd7da0126
commit 4fa109d2db
1 changed files with 97 additions and 3 deletions
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100
src/physics/matter-js/World.js
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@ -17,6 +17,8 @@ var MatterBody = require('./lib/body/Body');
var MatterEvents = require('./lib/core/Events'); var MatterEvents = require('./lib/core/Events');
var MatterWorld = require('./lib/body/World'); var MatterWorld = require('./lib/body/World');
var MatterTileBody = require('./MatterTileBody'); var MatterTileBody = require('./MatterTileBody');
var Vector = require('./lib/geometry/Vector');
var Common = require('./lib/core/Common');
/** /**
* @classdesc * @classdesc
@ -164,7 +166,9 @@ var World = new Class({
debugShowVelocity: GetValue(config, 'debugShowVelocity', true), debugShowVelocity: GetValue(config, 'debugShowVelocity', true),
bodyDebugColor: GetValue(config, 'debugBodyColor', 0xff00ff), bodyDebugColor: GetValue(config, 'debugBodyColor', 0xff00ff),
staticBodyDebugColor: GetValue(config, 'debugBodyColor', 0x0000ff), staticBodyDebugColor: GetValue(config, 'debugBodyColor', 0x0000ff),
velocityDebugColor: GetValue(config, 'debugVelocityColor', 0x00ff00) velocityDebugColor: GetValue(config, 'debugVelocityColor', 0x00ff00),
debugShowJoint: GetValue(config, 'debugShowJoint', true),
jointDebugColor: GetValue(config, 'debugJointColor', 0x000000)
}; };
if (this.drawDebug) if (this.drawDebug)
@ -630,7 +634,7 @@ var World = new Class({
graphics.lineStyle(1, this.defaults.bodyDebugColor); graphics.lineStyle(1, this.defaults.bodyDebugColor);
graphics.beginPath(); graphics.beginPath();
for (var i = 0; i < bodies.length; i++) for (let i = 0; i < bodies.length; i++)
{ {
if (!bodies[i].render.visible) if (!bodies[i].render.visible)
{ {
@ -639,7 +643,7 @@ var World = new Class({
// Handle drawing both single bodies and compound bodies. If compound, draw both the // Handle drawing both single bodies and compound bodies. If compound, draw both the
// convex hull (first part) and the rest of the bodies. // convex hull (first part) and the rest of the bodies.
for (var j = 0; j < bodies[i].parts.length; j++) for (let j = 0; j < bodies[i].parts.length; j++)
{ {
var body = bodies[i].parts[j]; var body = bodies[i].parts[j];
@ -659,6 +663,96 @@ var World = new Class({
} }
graphics.closePath(); graphics.closePath();
if(this.defaults.debugShowJoint)
{
graphics.lineStyle(2, this.defaults.jointDebugColor);
// Render constraints
var constraints = Composite.allConstraints(this.localWorld);
for (let i = 0; i < constraints.length; i++)
{
var constraint = constraints[i];
if (!constraint.render.visible || !constraint.pointA || !constraint.pointB)
{ continue; }
if (constraint.render.lineWidth)
{
graphics.lineStyle(constraint.render.lineWidth, Common.colorToNumber(constraint.render.strokeStyle));
}
var bodyA = constraint.bodyA,
bodyB = constraint.bodyB,
start,
end;
if (bodyA)
{
start = Vector.add(bodyA.position, constraint.pointA);
}
else
{
start = constraint.pointA;
}
if (constraint.render.type === 'pin')
{
graphics.beginPath();
graphics.arc(start.x, start.y, 3, 0, 2 * Math.PI);
graphics.closePath();
}
else
{
if (bodyB)
{
end = Vector.add(bodyB.position, constraint.pointB);
}
else
{
end = constraint.pointB;
}
graphics.beginPath();
graphics.moveTo(start.x, start.y);
if (constraint.render.type === 'spring')
{
var delta = Vector.sub(end, start),
normal = Vector.perp(Vector.normalise(delta)),
coils = Math.ceil(Common.clamp(constraint.length / 5, 12, 20)),
offset;
for (let j = 1; j < coils; j += 1)
{
offset = j % 2 === 0 ? 1 : -1;
graphics.lineTo(
start.x + delta.x * (j / coils) + normal.x * offset * 4,
start.y + delta.y * (j / coils) + normal.y * offset * 4
);
}
}
graphics.lineTo(end.x, end.y);
}
if (constraint.render.lineWidth)
{
graphics.strokePath();
}
if (constraint.render.anchors)
{
graphics.fillStyle(Common.colorToNumber(constraint.render.strokeStyle));
graphics.beginPath();
graphics.arc(start.x, start.y, 6, 0, 2 * Math.PI);
graphics.arc(end.x, end.y, 6, 0, 2 * Math.PI);
graphics.closePath();
graphics.fillPath();
}
}
}
}, },
/** /**