icybear/fabric-carpet
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attempt to solve hash collisions like vec3d(-8,8,-8)==vec3d(8,8,8)

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gnembon committed 2020-07-19 21:52:18 -03:00
1 parent ca0ddbb9e2
commit 022c091fff
1 file changed
+15 -7
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src/main/java/carpet/script/utils/ShapeDispatcher.java
+15 -7
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@@ -381,6 +381,14 @@ public class ShapeDispatcher
if (fa != 0.0) { hash = 31*hash + fillColor; hash *= 1099511628211L; } if (fa != 0.0) { hash = 31*hash + fillColor; hash *= 1099511628211L; }
return hash; return hash;
} }
private static final double xdif = new Random().nextDouble();
private static final double ydif = new Random().nextDouble();
private static final double zdif = new Random().nextDouble();
int vec3dhash(Vec3d vec)
{
return vec.add(xdif, ydif, zdif).hashCode();
}
// list of params that need to be there // list of params that need to be there
private final Set<String> required = ImmutableSet.of("duration", "shape", "dim"); private final Set<String> required = ImmutableSet.of("duration", "shape", "dim");
private final Map<String, Value> optional = ImmutableMap.of( private final Map<String, Value> optional = ImmutableMap.of(
@@ -503,7 +511,7 @@ public class ShapeDispatcher
{ {
long hash = super.calcKey(); long hash = super.calcKey();
hash ^= 5; hash *= 1099511628211L; hash ^= 5; hash *= 1099511628211L;
hash ^= pos.hashCode(); hash *= 1099511628211L; hash ^= vec3dhash(pos); hash *= 1099511628211L;
hash ^= text.hashCode(); hash *= 1099511628211L; hash ^= text.hashCode(); hash *= 1099511628211L;
if (facing!= null) hash ^= facing.hashCode(); hash *= 1099511628211L; if (facing!= null) hash ^= facing.hashCode(); hash *= 1099511628211L;
hash ^= Float.hashCode(raise); hash *= 1099511628211L; hash ^= Float.hashCode(raise); hash *= 1099511628211L;
@@ -566,8 +574,8 @@ public class ShapeDispatcher
{ {
long hash = super.calcKey(); long hash = super.calcKey();
hash ^= 1; hash *= 1099511628211L; hash ^= 1; hash *= 1099511628211L;
hash ^= from.hashCode(); hash *= 1099511628211L; hash ^= vec3dhash(from); hash *= 1099511628211L;
hash ^= to.hashCode(); hash *= 1099511628211L; hash ^= vec3dhash(to); hash *= 1099511628211L;
return hash; return hash;
} }
@@ -646,8 +654,8 @@ public class ShapeDispatcher
{ {
long hash = super.calcKey(); long hash = super.calcKey();
hash ^= 2; hash *= 1099511628211L; hash ^= 2; hash *= 1099511628211L;
hash ^= from.hashCode(); hash *= 1099511628211L; hash ^= vec3dhash(from); hash *= 1099511628211L;
hash ^= to.hashCode(); hash *= 1099511628211L; hash ^= vec3dhash(to); hash *= 1099511628211L;
return hash; return hash;
} }
} }
@@ -718,7 +726,7 @@ public class ShapeDispatcher
{ {
long hash = super.calcKey(); long hash = super.calcKey();
hash ^= 3; hash *= 1099511628211L; hash ^= 3; hash *= 1099511628211L;
hash ^= center.hashCode(); hash *= 1099511628211L; hash ^= vec3dhash(center); hash *= 1099511628211L;
hash ^= Double.hashCode(radius); hash *= 1099511628211L; hash ^= Double.hashCode(radius); hash *= 1099511628211L;
hash ^= level; hash *= 1099511628211L; hash ^= level; hash *= 1099511628211L;
return hash; return hash;
@@ -820,7 +828,7 @@ public class ShapeDispatcher
{ {
long hash = super.calcKey(); long hash = super.calcKey();
hash ^= 4; hash *= 1099511628211L; hash ^= 4; hash *= 1099511628211L;
hash ^= center.hashCode(); hash *= 1099511628211L; hash ^= vec3dhash(center); hash *= 1099511628211L;
hash ^= Double.hashCode(radius); hash *= 1099511628211L; hash ^= Double.hashCode(radius); hash *= 1099511628211L;
hash ^= Double.hashCode(height); hash *= 1099511628211L; hash ^= Double.hashCode(height); hash *= 1099511628211L;
hash ^= level; hash *= 1099511628211L; hash ^= level; hash *= 1099511628211L;