36 lines
875 B
Diff
36 lines
875 B
Diff
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From 6a5767cc5a6c8f88f8cc689c0916ddc0111308fe Mon Sep 17 00:00:00 2001
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From: Bram Stolk <b.stolk@gmail.com>
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Date: Fri, 30 Mar 2018 19:21:26 -0700
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Subject: [PATCH] Fix issue #144 of division by zero when setting zero mass,
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zero moment.
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---
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src/cpBody.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git src/cpBody.c src/cpBody.c
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index a8e0797..8ad2bc9 100644
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--- src/cpBody.c
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+++ src/cpBody.c
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@@ -258,7 +258,7 @@ cpBodySetMass(cpBody *body, cpFloat mass)
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cpBodyActivate(body);
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body->m = mass;
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- body->m_inv = 1.0f/mass;
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+ body->m_inv = mass == 0.0f ? INFINITY : 1.0f/mass;
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cpAssertSaneBody(body);
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}
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@@ -275,7 +275,7 @@ cpBodySetMoment(cpBody *body, cpFloat moment)
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cpBodyActivate(body);
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body->i = moment;
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- body->i_inv = 1.0f/moment;
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+ body->i_inv = moment == 0.0f ? INFINITY : 1.0f/moment;
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cpAssertSaneBody(body);
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}
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--
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2.21.0
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