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Code Issues Wiki Activity

implemented render.bounds

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liabru 2014-05-01 13:40:15 +01:00
parent 38c541363a
commit 2a9d2613d6
1 changed files with 60 additions and 5 deletions
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65
src/render/Render.js
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@ -28,6 +28,7 @@ var Render = {};
height: 600,
background: '#fafafa',
wireframeBackground: '#222',
hasBounds: false,
enabled: true,
wireframes: true,
showSleeping: true,
@ -50,6 +51,17 @@ var Render = {};
render.context = render.canvas.getContext('2d');
render.textures = {};
render.bounds = render.bounds || {
min: {
x: 0,
y: 0
},
max: {
x: render.options.width,
y: render.options.height
}
};
Render.setBackground(render, render.options.background);
if (Common.isElement(render.element)) {
@ -101,8 +113,10 @@ var Render = {};
canvas = render.canvas,
context = render.context,
options = render.options,
bodies = Composite.allBodies(world),
constraints = Composite.allConstraints(world),
allBodies = Composite.allBodies(world),
allConstraints = Composite.allConstraints(world),
bodies = [],
constraints = [],
i;
if (options.wireframes) {
@ -117,8 +131,39 @@ var Render = {};
context.fillRect(0, 0, canvas.width, canvas.height);
context.globalCompositeOperation = 'source-over';
/*if (options.showShadows && !options.wireframes)
Render.bodyShadows(engine, bodies, context);*/
// handle bounds
if (options.hasBounds) {
// filter out bodies that are not in view
for (i = 0; i < allBodies.length; i++) {
var body = allBodies[i];
if (Bounds.overlaps(body.bounds, render.bounds))
bodies.push(body);
}
// filter out constraints that are not in view
for (i = 0; i < allConstraints.length; i++) {
var constraint = allConstraints[i],
bodyA = constraint.bodyA,
bodyB = constraint.bodyB,
pointAWorld = constraint.pointA,
pointBWorld = constraint.pointB;
if (bodyA) pointAWorld = Vector.add(bodyA.position, constraint.pointA);
if (bodyB) pointBWorld = Vector.add(bodyB.position, constraint.pointB);
if (!pointAWorld || !pointBWorld)
continue;
if (Bounds.contains(render.bounds, pointAWorld) || Bounds.contains(render.bounds, pointBWorld))
constraints.push(constraint);
}
// translate the view
context.translate(-render.bounds.min.x, -render.bounds.min.y);
} else {
constraints = allConstraints;
bodies = allBodies;
}
if (!options.wireframes || (engine.enableSleeping && options.showSleeping)) {
// fully featured rendering of bodies
@ -153,6 +198,9 @@ var Render = {};
if (options.showDebug)
Render.debug(engine, context);
if (options.hasBounds)
context.translate(render.bounds.min.x, render.bounds.min.y);
};
/**
@ -699,9 +747,13 @@ var Render = {};
mouse = engine.input.mouse,
selected = inspector.selected,
c = context,
options = engine.render.options,
render = engine.render,
options = render.options,
bounds;
if (options.hasBounds)
context.translate(-render.bounds.min.x, -render.bounds.min.y);
for (var i = 0; i < selected.length; i++) {
var item = selected[i].data;
@ -758,6 +810,9 @@ var Render = {};
context.fill();
context.translate(-0.5, -0.5);
}
if (options.hasBounds)
context.translate(render.bounds.min.x, render.bounds.min.y);
};
/**