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Help with spread ruling?

Post/Author/DateTime Post
#1
xonoa
Mar 10, 2012 23:27:22 I have a problem with how spell spreads work.
spells like fireball say 20 ft radius spread. does that mean I choose an intersection and it covers and area 4 squares (20 ft) from that point in every direction? or just 2 (10 ft making it 20 ft wide total)?
#2
LordOfWeasels
Mar 10, 2012 23:39:15
I have a problem with how spell spreads work.
spells like fireball say 20 ft radius spread. does that mean I choose an intersection and it covers and area 4 squares (20 ft) from that point in every direction? or just 2 (10 ft making it 20 ft wide total)?

"20 foot radius" means "20 feet from the center point, in all directions".

But this isn't the right forum. This forum is about player-group conflicts.

"20 foot radius" means it's not 4E - are you playing D20? In that case, you should ask your D20 rules questions in the D20 rules questions forum. - maybe the Spells sub-forum? You're more likely to get a good answer, from someone who can tell you specifics about how you choose your center point, if you ask there.
#3
xonoa
Mar 10, 2012 23:55:25
I have a problem with how spell spreads work.
spells like fireball say 20 ft radius spread. does that mean I choose an intersection and it covers and area 4 squares (20 ft) from that point in every direction? or just 2 (10 ft making it 20 ft wide total)?

"20 foot radius" means "20 feet from the center point, in all directions".

But this isn't the right forum. This forum is about player-group conflicts.

"20 foot radius" means it's not 4E - are you playing D20? In that case, you should ask your D20 rules questions in the D20 rules questions forum. - maybe the Spells sub-forum? You're more likely to get a good answer, from someone who can tell you specifics about how you choose your center point, if you ask there.

thanks for the clarification
I didnt know what forum to put it in
I will try that one then if I have any future problems
and I'm playing 3.5 by the way
#4
Neutronium_Dragon
Mar 11, 2012 17:16:10 "Spread" and "Burst" behave differently in 3.X. IIRC, one will turn corners while the other won't, but I don't remember which is which.
#5
lolabonne
Mar 11, 2012 17:17:55
"Spread" and "Burst" behave differently in 3.X. IIRC, one will turn corners while the other won't, but I don't remember which is which.

Spreads. From the SRD:

Spread
Some effects, notably clouds and fogs, spread out from a point of origin, which must be a grid intersection. The effect can extend around corners and into areas that you can’t see. Figure distance by actual distance traveled, taking into account turns the spell effect takes. When determining distance for spread effects, count around walls, not through them. As with movement, do not trace diagonals across corners. You must designate the point of origin for such an effect, but you need not have line of effect (see below) to all portions of the effect.

Bursts:

A burst spell affects whatever it catches in its area, even including creatures that you can’t see. It can’t affect creatures with total cover from its point of origin (in other words, its effects don’t extend around corners). The default shape for a burst effect is a sphere, but some burst spells are specifically described as cone-shaped. A burst’s area defines how far from the point of origin the spell’s effect extends.

Post/Author/DateTime	Post
#1 xonoa Mar 10, 2012 23:27:22	I have a problem with how spell spreads work. spells like fireball say 20 ft radius spread. does that mean I choose an intersection and it covers and area 4 squares (20 ft) from that point in every direction? or just 2 (10 ft making it 20 ft wide total)?
#2 LordOfWeasels Mar 10, 2012 23:39:15	I have a problem with how spell spreads work. spells like fireball say 20 ft radius spread. does that mean I choose an intersection and it covers and area 4 squares (20 ft) from that point in every direction? or just 2 (10 ft making it 20 ft wide total)? "20 foot radius" means "20 feet from the center point, in all directions". But this isn't the right forum. This forum is about player-group conflicts. "20 foot radius" means it's not 4E - are you playing D20? In that case, you should ask your D20 rules questions in the D20 rules questions forum. - maybe the Spells sub-forum? You're more likely to get a good answer, from someone who can tell you specifics about how you choose your center point, if you ask there.
#3 xonoa Mar 10, 2012 23:55:25	I have a problem with how spell spreads work. spells like fireball say 20 ft radius spread. does that mean I choose an intersection and it covers and area 4 squares (20 ft) from that point in every direction? or just 2 (10 ft making it 20 ft wide total)? "20 foot radius" means "20 feet from the center point, in all directions". But this isn't the right forum. This forum is about player-group conflicts. "20 foot radius" means it's not 4E - are you playing D20? In that case, you should ask your D20 rules questions in the D20 rules questions forum. - maybe the Spells sub-forum? You're more likely to get a good answer, from someone who can tell you specifics about how you choose your center point, if you ask there. thanks for the clarification I didnt know what forum to put it in I will try that one then if I have any future problems and I'm playing 3.5 by the way
#4 Neutronium_Dragon Mar 11, 2012 17:16:10	"Spread" and "Burst" behave differently in 3.X. IIRC, one will turn corners while the other won't, but I don't remember which is which.
#5 lolabonne Mar 11, 2012 17:17:55	"Spread" and "Burst" behave differently in 3.X. IIRC, one will turn corners while the other won't, but I don't remember which is which. Spreads. From the SRD: Spread Some effects, notably clouds and fogs, spread out from a point of origin, which must be a grid intersection. The effect can extend around corners and into areas that you can’t see. Figure distance by actual distance traveled, taking into account turns the spell effect takes. When determining distance for spread effects, count around walls, not through them. As with movement, do not trace diagonals across corners. You must designate the point of origin for such an effect, but you need not have line of effect (see below) to all portions of the effect. Bursts: A burst spell affects whatever it catches in its area, even including creatures that you can’t see. It can’t affect creatures with total cover from its point of origin (in other words, its effects don’t extend around corners). The default shape for a burst effect is a sphere, but some burst spells are specifically described as cone-shaped. A burst’s area defines how far from the point of origin the spell’s effect extends.