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Code Issues Wiki Activity

fixed collision rendering

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This commit is contained in:
liabru 2015-02-21 22:19:12 +00:00
parent 84d9f591aa
commit bc9a051e73
1 changed files with 41 additions and 1 deletions
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40
src/render/Render.js
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@ -779,6 +779,7 @@ var Render = {};
options = engine.render.options,
pair,
collision,
corrected,
i,
j;
@ -787,6 +788,10 @@ var Render = {};
// render collision positions
for (i = 0; i < pairs.length; i++) {
pair = pairs[i];
if (!pair.isActive)
continue;
collision = pair.collision;
for (j = 0; j < pair.activeContacts.length; j++) {
var contact = pair.activeContacts[j],
@ -804,9 +809,39 @@ var Render = {};
c.beginPath();
// render corrected positions
for (i = 0; i < pairs.length; i++) {
pair = pairs[i];
if (!pair.isActive)
continue;
collision = pair.collision;
corrected = collision.supportCorrected;
if (collision.bodyB === collision.supports[0].body) {
c.rect(collision.supportCorrected.x - 1.5, collision.supportCorrected.y - 1.5, 3.5, 3.5);
} else {
c.rect(collision.supportCorrected.x - 1.5 + (2 * collision.penetration.x), collision.supportCorrected.y - 1.5 + (2 * collision.penetration.y), 3.5, 3.5);
}
}
if (options.wireframes) {
c.strokeStyle = 'rgba(255,165,0,0.7)';
} else {
c.strokeStyle = 'orange';
}
c.stroke();
c.beginPath();
// render collision normals
for (i = 0; i < pairs.length; i++) {
pair = pairs[i];
if (!pair.isActive)
continue;
collision = pair.collision;
if (pair.activeContacts.length > 0) {
@ -818,7 +853,12 @@ var Render = {};
normalPosY = (pair.activeContacts[0].vertex.y + pair.activeContacts[1].vertex.y) / 2;
}
if (collision.bodyB === collision.supports[0].body) {
c.moveTo(normalPosX - collision.normal.x * 8, normalPosY - collision.normal.y * 8);
} else {
c.moveTo(normalPosX + collision.normal.x * 8, normalPosY + collision.normal.y * 8);
}
c.lineTo(normalPosX, normalPosY);
}
}