Absolutely nothing about anything you quoted suggests that you don't have your fly speed when you're walking.
Sure, but that doesn't matter, because what you spend is movement, not speed, and you do not have 'fly movement', you just have movement.
It absolutely does matter, because the amount of movement you expend is "equal to half your speed." If you have a 30ft walk speed and a 60ft fly speed, "your speed" without qualification is simultaneously both 30ft and 60ft. The book does not tell us how to account for this fact. I'm just saying that "it's half of all your speeds" makes a lot more sense than "it's half of whatever speed you arbitrarily choose," which is what your position amounts to, because again, you're not "currently using" any specific speed when you rise from being prone.
Just following the text I gave:
You are prone and walking. You have moved 0. Your speed is 30 (you also, irrelevantly, have a flight speed of 60).
You stand up. Per the rules for standing up, this costs you 15 of your movement.
You change mode to flight. You have already 'moved' 15', so you calculate your new movement as 60 - 15, and thus you have 45' of movement left.
Not that this is a very important debate, we're just arguing what flavor of stupid the existing rules are.
1. You cannot be prone and walking. That's what prone means.
2. Per the rules of standing up, this costs you an amount of movement equal to half your speed, which is both 30ft and 60ft. You cannot ignore additional speeds because they're inconvenient to you.
3. You haven't moved at all. You've expended an amount of movement equal to half your speed (see 2).
We're not arguing about the existing rules at all. The existing rules do not cover this. We're arguing about what makes the most sense to rule as DMs.
1. You cannot be prone and walking. That's what prone means.
When prone, you can crawl, spending 2' of movement per 1' moved. As you only have movement equal to your speed (less movement spent), the fact that you can crawl means you have a speed, which must be one of the movement types you have -- generally ground movement (untyped speed).
In combat, characters and monsters are in constant motion, often using movement and position to gain the upper hand.
On your turn, you can move a distance up to your speed. You can use as much or as little of your speed as you like on your turn, following the rules here.
Your movement can include jumping, climbing, and swimming. These different modes of movement can be combined with walking, or they can constitute your entire move. However you're moving, you deduct the distance of each part of your move from your speed until it is used up or until you are done moving.
...
Using Different Speeds
If you have more than one speed, such as your walking speed and a flying speed, you can switch back and forth between your speeds during your move. Whenever you switch, subtract the distance you've already moved from the new speed. The result determines how much farther you can move. If the result is 0 or less, you can't use the new speed during the current move.
For example, if you have a speed of 30 and a flying speed of 60 because a wizard cast the fly spell on you, you could fly 20 feet, then walk 10 feet, and then leap into the air to fly 30 feet more.
...
Being Prone
Combatants often find themselves lying on the ground, either because they are knocked down or because they throw themselves down. In the game, they are prone. You can drop prone without using any of your speed. Standing up takes more effort; doing so costs an amount of movement equal to half your speed. For example, if your speed is 30 feet, you must spend 15 feet of movement to stand up. You can't stand up if you don't have enough movement left or if your speed is 0.
To move while prone, you must crawl or use magic such as teleportation. Every foot of movement while crawling costs 1 extra foot. Crawling 1 foot in difficult terrain, therefore, costs 3 feet of movement.
Having the speed "Move 30" gives you 30 Move points. Why the hell they didn't call it 'Walk' is my neverending frustration but... we all get it, capital-M-Move means Walk, but there are other types of movement that aren't Move. "Moving" on (ha). Fly 30 gives you 30 Fly movement points. Climb 30 gives you 30 Climb movement points Swim 30 gives you 30 Swim movement points. You don't have one pool of 30 points which may or may not be used on some combination of Move/Fly/Climb/Swim, you have four simultaneous 30-point pools.
To walk 5 feet using Move 30, I deduct 5 Move points from my pool of 30 Move points. Has this instantly deducted 5 points from the other pools too? The book says not to bother worrying about that unless you try to use one of those pools, but there's no way to exploit that because you'll have to do the same math either way now or later, so you might as well do it now. Walking 5 feet takes 5 points from each of my pools at the same time, so I'm down to 25/25/25/25 remaining.
Whoops, difficult terrain ahead! Walking 5 more feet costs 10 Move points, even though I've only moved 5 more feet. It is ridiculous to think that the rules want us to go down to 15/20/20/20 now, but that's technically the way it's worded since they used "distance moved" instead of "movement spent" in that section. I'm errataing that on the fly since it's blatantly not RAI; I truly challenge you to tell me with a straight face that you want to live in a world where using Misty Step means you can no longer walk or fly because you've already moved 30 feet of distance even though you haven't spent any movement. So we're not doing that... you're at 15/15/15/15.
But I fell over in the brambles! To stand up, I must spent movement points equal to half my total speed from each of those pools. That's 15 from each... 0/0/0/0.
So at this point I can't keep walking, can't start flying, or climbing, or swimming... I'm done.
"But chicken, what if you had only had a Fly of 5!!!! Would that mean you couldn't have kept walking, or couldn't have stood up, since walking through the difficult terrain or standing up would push you negative in your Fly pool???" No. There's no rule that you're not allowed to let those pools dip negative when you're not using them. All we're told is that when you switch to that movement mode, if the result is 0 "or less," you can't use that movement mode. So no problem.
"But chicken, that means you only need to do this math when you switch to the movement mode, not all the time in the background!!!" Yeah, fine, do it when you switch the movement mode if you'd like. Doesn't change the fact that you need to deduct the same *movement spent (again, I refuse to go down the rabbit hole of an unworkable unintended rule merely because of poor editing) at the time you switch to it, so no reason not to do your math ahead of time. I'm just doing that for ease of explanation and brevity, not because it's mechanically significant.
"But chicken, I recalculate my single movement point pool when I go from Move 30 to Swim 60, so half of the 30 pool didn't mean half the 60-". No, no you don't. Nothing in the rules says "recalculate." Nothing in the rules says or implies the existence of a single pool.
Whoops, difficult terrain ahead! Walking 5 more feet costs 10 Move points, even though I've only moved 5 more feet. It is ridiculous to think that the rules want us to go down to 15/20/20/20 now, but that's technically the way it's worded since they used "distance moved" instead of "movement spent" in that section. I'm errataing that on the fly since it's blatantly not RAI; I truly challenge you to tell me with a straight face that you want to live in a world where using Misty Step means you can no longer walk or fly because you've already moved 30 feet of distance even though you haven't spent any movement. So we're not doing that... you're at 15/15/15/15.
No one's reading my longwinded nonsense anyway, but the other reason we know that we're counting "movement spent" and not "distance moved" is that otherwise standing up from prone on the ground would cost you zero Fly movement points, because you haven't moved any "distance" at all. That's malarky, even Panta isnt' arguing for that. So I don't want to hear any guff about counting distance moved instead of movement spent, just accept it and move on.
You stand up (15' spent), then get hit by Ray of Frost, reducing your Speed to 20'. Is your remaining movement 5' or 10'?
You stand up (15' spent), then get hit by Longstrider, increasing your Speed to 40'. Is your remaining movement 25' or 20'?
Compare the text for standing up to the text for Dash, which explicitly changes effect when your speed changes -- i.e.
You Dash (60' left) then get hit by Ray of Frost, reducing your Speed to 20'. Remaining movement is 40.
You Dash (60' left) then get hit by Longstrider, increasing your Speed to 40'. Remaining movement is 80.
There is no text that says that changing Speed due to changing movement type works any differently from changing Speed for any other reason, and since Standing Up lacks the explicit text given by Dash, the presumption is that it does not retroactively change.
The question about events modifying speed mid-turn are good... I'd assume that if I start my turn with 30 speed but get a +10 speed enhancement mid-turn I'd want to be able to use those new points! Conversely, if I have 15/30 speed left and then get zapped for -10 speed, I'd expect to lose 10 move points as well, being left at 5/20. Certainly an edge case though!
Dash gives you +X movement points, where X equals your speed(s). Are you asking if you Dash before Longstridering, do you retroactively get +20 move points to represent 10 from your base speed and +10 from Dashing? Nah, I'd probably figure you'd have 70 move points. Ray of Frost different? Nah, they shoulda cast it earlier, I'd probably leave you with 50. But again, edge case with a weird interaction, I'll admit I'm just spitballing...
How is any of that relevant to the question of whether points you have spent have in fact been spent, which we've been talking about up until this point? Those effects change your speed (e.g. "the target's speed increases by 10 feet"), while changing between movement modes from Move 30 to Fly 60 in no way describes itself as "increasing your speed," it's described as "switching back and forth." Apples to oranges, where is the point you are making?
Dash gives you +X movement points, where X equals your speed(s). Are you asking if you Dash before Longstridering, do you retroactively get +20 move points to represent 10 from your base speed and +10 from Dashing? Nah, I'd probably figure you'd have 70 move points
Dash specifically says that if your speed changes, the bonus it grants also changes. Standing up from prone does not have the same words.
How is any of that relevant to the question of whether points you have spent have in fact been spent, which we've been talking about up until this point? Those effects change your speed (e.g. "the target's speed increases by 10 feet"), while changing between movement modes from Move 30 to Fly 60 in no way describes itself as "increasing your speed," it's described as "switching back and forth." Apples to oranges, where is the point you are making?
I am saying that the simplest interpretation of changing movement modes is treating it as changing your speed. I mean, it's in a section about "Using different speeds", not "Movement types", and in fact there are no other rules for changing speed (presumably if your speed gets reduced to zero because of an opportunity attack while you're moving, you stop, but unless this paragraph applies to that situation, you don't...).
If you are saying that that sentence in Dash retroactively adds/reduces movement if your speed later changes... that is not how I read and understand that sentence.
Any increase or decrease to your speed changes this additional movement by the same amount. If your speed of 30 feet is reduced to 15 feet, for instance, you can move up to 30 feet this turn if you dash.
The example it provides is of a creature who has a Speed 30 having its speed reduced to 15, and then Dashing to move a total of 30, not of a creature Dashing to have a total move of 60 but then having a 15 foot speed reduction drop it down to 30. But either way, I still fail to see what connection this has to standing up costing half of your movement points?
We're talking ourselves around in so many circles that I doubt anything is getting any clearer for anyone. You either believe that movement is spent from all speeds, which plays nice with and supports every example we're given of movement math in the rules, or you believe that "half your speed" and "extra foot of movement" stuff is meant to only count against a single speed you choose from among your several, allowing you to perform novel movement math that isn't shown anywhere in the books. It's a pretty extreme view, but I guess I can't talk you out of it.
We're talking ourselves around in so many circles that I doubt anything is getting any clearer for anyone. You either believe that movement is spent from all speeds, which plays nice with and supports every example we're given of movement math in the rules, or you believe that "half your speed" and "extra foot of movement" stuff is meant to only count against a single speed you choose from among your several, allowing you to perform novel movement math that isn't shown anywhere in the books. It's a pretty extreme view, but I guess I can't talk you out of it.
No, you're misunderstanding. My view is:
you don't have multiple pools. You have a single pool.
Your available movement, at any time during the turn, is equal to your current speed, less the amount you have already spent.
If something changes your speed, your available movement is recomputed based on the new speed.
Changing movement types is changing your speed.
Dash gives extra movement equal to your speed. This is recomputed if your speed changes.
Standing up costs movement equal to half your speed. This is not recomputed if your speed changes.
Point 1 is the fundamental disagreement. I simply see no textual evidence for the existence of multiple movement pools. You have multiple speeds, but only one available movement.
Points 2, 3, and 4 seem to me like the most natural reading of "Using different speeds". Point 4 is important because having your speed reduced during your turn would be expected to reduce your movement, but the only time you recompute your available movement during your turn is in the section on "Using different speeds", so if that paragraph does not apply to all types of speed change (not just speed change from changed movement types) effects that slow or stop characters as a reaction don't make sense.
In practical effect, the difference between our perspectives amounts to changing (5) and (6), which in your reading become
Dash gives extra movement equal to your speed. This is recomputed if your speed changes due to changing movement type, but not any other sort of speed change.
Standing up costs movement equal to half your speed. This is recomputed if your speed changes due to changing movement type, but not any other sort of speed change.
I dislike treating changing movement types as different from any other speed change, though I wouldn't have an issue with treating dash and standing up in the same way, it's just that as currently worded they aren't.
We're talking ourselves around in so many circles that I doubt anything is getting any clearer for anyone. You either believe that movement is spent from all speeds, which plays nice with and supports every example we're given of movement math in the rules, or you believe that "half your speed" and "extra foot of movement" stuff is meant to only count against a single speed you choose from among your several, allowing you to perform novel movement math that isn't shown anywhere in the books. It's a pretty extreme view, but I guess I can't talk you out of it.
Standing up costs half your speed. This is not recomputed if your speed changes.
This is where people are disagreeing with you. Standing from prone is a special situation in which your speed is consumed, but you cross no distance.
Mixing & matching different types of movement speed is only a 1:1 subtraction operation when you are actually crossing a distance: remaining movement speed = max(new movement speed) - sum(distance already traveled).
Standing from prone halves your speed, regardless of which movement speeds you have available to you. This is a multiplicative operation: remaining movement speed = (x)*(max(new movement speed) - sum(distance already traveled)). When standing from prone, x = (0.5). When grappled/restrained/affected by sentinel/etc, x = (0).
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You don't know what fear is until you've witnessed a drunk bird divebombing you while carrying a screaming Kobold throwing fire anywhere and everywhere.
Panta, I literally disagree with every single bullet point you've just typed out, we just have no common ground. There's no such thing as "current speed" in the way you're using it, to suggest that you don't have your Fly speed until you start trying to Fly. You always constantly have all of your speeds, so their movement pools already always exist. Which one you're actively spending from may switch as you change modes, but you haven't "changed speeds" or anything like that. A speed enhancement mid-turn retroactively recalculates values earlier in the round, it just gives you +10 [Mode] speed/+10 [Mode] movement points or whatever value from that point forward. Dash gives you extra movement equal to your speed at the time that you take Dash. Standing up costs half your movement points, which again, all the points in all the Mode pools already exist, not just when you switch to them.
(Sigred's answer above conflates Speed value with the movement points you can spend up to that value, which I'm not sure I agree with, demonstrating how even those who agree with end result here are doing different napkin math to get there. Definitely a messy rule section which could have been laid out in a more straightforward manner).
And around and around we go, at the moment you "stand up" in your square you aren't "currently using" any movement mode at all, because you aren't moving distance. Another fundamental and necessary understanding that we don't share, apparently.
And around and around we go, at the moment you "stand up" in your square you aren't "currently using" any movement mode at all, because you aren't moving distance.
If you do not have a speed, you are prohibited from spending movement, because your available movement is equal to your speed less the amount you have already spent, which would be zero or negative.
Consider a case your version brings up:
I have a ground speed of 30 and a flight speed of 60. I get knocked prone.
I have 10' of ground move left, and 40' of flight move left
Standing up would cost me 15' of ground move and 30' of flight move. So ground move says I cannot stand up, flight move says I can.
Am I allowed to stand up? In my reading, if you are able to fly while prone (hover), you can change your movement mode to flight and then spend 30 of your 40 remaining movement; if you do not have the ability to hover you are required to use your ground move and cannot stand up.
YOU HAVE A SPEED YOU HAVE ALL OF YOUR SPEEDS ALL THE TIME, THAT IS THE POSITION I HAVE MADE QUITE CLEAR BY NOW. Panta, unless you're just trying to deliberately misunderstand and avoid engaging with the counter argument, I really don't understand what you're doing at this point. Unsubscribed, I'm over it.
In the case example you're providing where you have 10 movement of your 30 Move Speed left and are knocked prone, you cannot stand up because you don't have 15 movement to spend, even if you have 40/60 Fly speed left over. This is true if you're on the ground trying to stand up, or in the air trying to stand up, or underwater trying to stand up, or whatever. Standing up from prone costs an amount of movement equal to half your Speed value(s), and you have less than half of your Move (walk) pool left, so you can't stand up because you don't have enough Move movement points. This is true if you're at 10/30 Move-40/60 Fly, 40/60 Move-10/30 Fly, or any other example you want to provide. If your speed is 30 Move/60 Fly or whatever, standing up spends 15 from your Move pool and 30 from your Fly pool, and can't be done if you don't have enough points in either to spend that.
well, there is the Aarokokra and variant winged Tiefling, both of which have a fly speed, and are both official. I think a 20 ft. fly speed isn't bad compared to 50 ft or 30 ft fly speeds.
I think here the simple and only answer is that the game designers never considered these kinds of circumstances and therefore the rules (written, intended, or otherwise) just don't actually cover it.
If you consider Pantagrual666's example, the rules state that a prone character's only option for movement, unless they stand up, is to crawl-a special form of normal movement-meaning that no matter how look at it, standing will require half of your normal movement. However, if you look at a monster such as the beholder-Speed 0 ft., fly 20 ft. (hover)-if it were to be knocked prone it wouldn't fall out of the air-as the rules clearly state under flying movement-but the rules also just as clearly state that a creature with the prone condition cannot stand up and thereby remove the condition at all if it has 0 speed. Meaning that, RAW once a beholder has fallen it can't ever get up and I really don't think this was intentional.
I think here the simple and only answer is that the game designers never considered these kinds of circumstances and therefore the rules (written, intended, or otherwise) just don't actually cover it.
If you consider Pantagrual666's example, the rules state that a prone character's only option for movement, unless they stand up, is to crawl-a special form of normal movement-meaning that no matter how look at it, standing will require half of your normal movement. However, if you look at a monster such as the beholder-Speed 0 ft., fly 20 ft. (hover)-if it were to be knocked prone it wouldn't fall out of the air-as the rules clearly state under flying movement-but the rules also just as clearly state that a creature with the prone condition cannot stand up and thereby remove the condition at all if it has 0 speed. Meaning that, RAW once a beholder has fallen it can't ever get up and I really don't think this was intentional.
A beholder does not have 0 speed. It has a 20 ft flying speed that it can use to "stand up" from being prone. Thank you for citing a concrete example that demonstrates the flaw in "your speed is the one you're 'currently using'" position, though.
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Just following the text I gave:
Not that this is a very important debate, we're just arguing what flavor of stupid the existing rules are.
1. You cannot be prone and walking. That's what prone means.
2. Per the rules of standing up, this costs you an amount of movement equal to half your speed, which is both 30ft and 60ft. You cannot ignore additional speeds because they're inconvenient to you.
3. You haven't moved at all. You've expended an amount of movement equal to half your speed (see 2).
We're not arguing about the existing rules at all. The existing rules do not cover this. We're arguing about what makes the most sense to rule as DMs.
When prone, you can crawl, spending 2' of movement per 1' moved. As you only have movement equal to your speed (less movement spent), the fact that you can crawl means you have a speed, which must be one of the movement types you have -- generally ground movement (untyped speed).
Having the speed "Move 30" gives you 30 Move points. Why the hell they didn't call it 'Walk' is my neverending frustration but... we all get it, capital-M-Move means Walk, but there are other types of movement that aren't Move. "Moving" on (ha). Fly 30 gives you 30 Fly movement points. Climb 30 gives you 30 Climb movement points Swim 30 gives you 30 Swim movement points. You don't have one pool of 30 points which may or may not be used on some combination of Move/Fly/Climb/Swim, you have four simultaneous 30-point pools.
To walk 5 feet using Move 30, I deduct 5 Move points from my pool of 30 Move points. Has this instantly deducted 5 points from the other pools too? The book says not to bother worrying about that unless you try to use one of those pools, but there's no way to exploit that because you'll have to do the same math either way now or later, so you might as well do it now. Walking 5 feet takes 5 points from each of my pools at the same time, so I'm down to 25/25/25/25 remaining.
Whoops, difficult terrain ahead! Walking 5 more feet costs 10 Move points, even though I've only moved 5 more feet. It is ridiculous to think that the rules want us to go down to 15/20/20/20 now, but that's technically the way it's worded since they used "distance moved" instead of "movement spent" in that section. I'm errataing that on the fly since it's blatantly not RAI; I truly challenge you to tell me with a straight face that you want to live in a world where using Misty Step means you can no longer walk or fly because you've already moved 30 feet of distance even though you haven't spent any movement. So we're not doing that... you're at 15/15/15/15.
But I fell over in the brambles! To stand up, I must spent movement points equal to half my total speed from each of those pools. That's 15 from each... 0/0/0/0.
So at this point I can't keep walking, can't start flying, or climbing, or swimming... I'm done.
"But chicken, what if you had only had a Fly of 5!!!! Would that mean you couldn't have kept walking, or couldn't have stood up, since walking through the difficult terrain or standing up would push you negative in your Fly pool???" No. There's no rule that you're not allowed to let those pools dip negative when you're not using them. All we're told is that when you switch to that movement mode, if the result is 0 "or less," you can't use that movement mode. So no problem.
"But chicken, that means you only need to do this math when you switch to the movement mode, not all the time in the background!!!" Yeah, fine, do it when you switch the movement mode if you'd like. Doesn't change the fact that you need to deduct the same *movement spent (again, I refuse to go down the rabbit hole of an unworkable unintended rule merely because of poor editing) at the time you switch to it, so no reason not to do your math ahead of time. I'm just doing that for ease of explanation and brevity, not because it's mechanically significant.
"But chicken, I recalculate my single movement point pool when I go from Move 30 to Swim 60, so half of the 30 pool didn't mean half the 60-". No, no you don't. Nothing in the rules says "recalculate." Nothing in the rules says or implies the existence of a single pool.
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No one's reading my longwinded nonsense anyway, but the other reason we know that we're counting "movement spent" and not "distance moved" is that otherwise standing up from prone on the ground would cost you zero Fly movement points, because you haven't moved any "distance" at all. That's malarky, even Panta isnt' arguing for that. So I don't want to hear any guff about counting distance moved instead of movement spent, just accept it and move on.
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Consider some other examples:
Compare the text for standing up to the text for Dash, which explicitly changes effect when your speed changes -- i.e.
There is no text that says that changing Speed due to changing movement type works any differently from changing Speed for any other reason, and since Standing Up lacks the explicit text given by Dash, the presumption is that it does not retroactively change.
The question about events modifying speed mid-turn are good... I'd assume that if I start my turn with 30 speed but get a +10 speed enhancement mid-turn I'd want to be able to use those new points! Conversely, if I have 15/30 speed left and then get zapped for -10 speed, I'd expect to lose 10 move points as well, being left at 5/20. Certainly an edge case though!
Dash gives you +X movement points, where X equals your speed(s). Are you asking if you Dash before Longstridering, do you retroactively get +20 move points to represent 10 from your base speed and +10 from Dashing? Nah, I'd probably figure you'd have 70 move points. Ray of Frost different? Nah, they shoulda cast it earlier, I'd probably leave you with 50. But again, edge case with a weird interaction, I'll admit I'm just spitballing...
How is any of that relevant to the question of whether points you have spent have in fact been spent, which we've been talking about up until this point? Those effects change your speed (e.g. "the target's speed increases by 10 feet"), while changing between movement modes from Move 30 to Fly 60 in no way describes itself as "increasing your speed," it's described as "switching back and forth." Apples to oranges, where is the point you are making?
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Dash specifically says that if your speed changes, the bonus it grants also changes. Standing up from prone does not have the same words.
I am saying that the simplest interpretation of changing movement modes is treating it as changing your speed. I mean, it's in a section about "Using different speeds", not "Movement types", and in fact there are no other rules for changing speed (presumably if your speed gets reduced to zero because of an opportunity attack while you're moving, you stop, but unless this paragraph applies to that situation, you don't...).
If you are saying that that sentence in Dash retroactively adds/reduces movement if your speed later changes... that is not how I read and understand that sentence.
The example it provides is of a creature who has a Speed 30 having its speed reduced to 15, and then Dashing to move a total of 30, not of a creature Dashing to have a total move of 60 but then having a 15 foot speed reduction drop it down to 30. But either way, I still fail to see what connection this has to standing up costing half of your movement points?
We're talking ourselves around in so many circles that I doubt anything is getting any clearer for anyone. You either believe that movement is spent from all speeds, which plays nice with and supports every example we're given of movement math in the rules, or you believe that "half your speed" and "extra foot of movement" stuff is meant to only count against a single speed you choose from among your several, allowing you to perform novel movement math that isn't shown anywhere in the books. It's a pretty extreme view, but I guess I can't talk you out of it.
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No, you're misunderstanding. My view is:
Point 1 is the fundamental disagreement. I simply see no textual evidence for the existence of multiple movement pools. You have multiple speeds, but only one available movement.
Points 2, 3, and 4 seem to me like the most natural reading of "Using different speeds". Point 4 is important because having your speed reduced during your turn would be expected to reduce your movement, but the only time you recompute your available movement during your turn is in the section on "Using different speeds", so if that paragraph does not apply to all types of speed change (not just speed change from changed movement types) effects that slow or stop characters as a reaction don't make sense.
In practical effect, the difference between our perspectives amounts to changing (5) and (6), which in your reading become
I dislike treating changing movement types as different from any other speed change, though I wouldn't have an issue with treating dash and standing up in the same way, it's just that as currently worded they aren't.
This is where people are disagreeing with you. Standing from prone is a special situation in which your speed is consumed, but you cross no distance.
Mixing & matching different types of movement speed is only a 1:1 subtraction operation when you are actually crossing a distance: remaining movement speed = max(new movement speed) - sum(distance already traveled).
Standing from prone halves your speed, regardless of which movement speeds you have available to you. This is a multiplicative operation: remaining movement speed = (x)*(max(new movement speed) - sum(distance already traveled)). When standing from prone, x = (0.5). When grappled/restrained/affected by sentinel/etc, x = (0).
You don't know what fear is until you've witnessed a drunk bird divebombing you while carrying a screaming Kobold throwing fire anywhere and everywhere.
Panta, I literally disagree with every single bullet point you've just typed out, we just have no common ground. There's no such thing as "current speed" in the way you're using it, to suggest that you don't have your Fly speed until you start trying to Fly. You always constantly have all of your speeds, so their movement pools already always exist. Which one you're actively spending from may switch as you change modes, but you haven't "changed speeds" or anything like that. A speed enhancement mid-turn retroactively recalculates values earlier in the round, it just gives you +10 [Mode] speed/+10 [Mode] movement points or whatever value from that point forward. Dash gives you extra movement equal to your speed at the time that you take Dash. Standing up costs half your movement points, which again, all the points in all the Mode pools already exist, not just when you switch to them.
Fundamental disagreements from top to bottom.
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(Sigred's answer above conflates Speed value with the movement points you can spend up to that value, which I'm not sure I agree with, demonstrating how even those who agree with end result here are doing different napkin math to get there. Definitely a messy rule section which could have been laid out in a more straightforward manner).
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How do you read "Standing up takes more effort; doing so costs an amount of movement equal to half your speed." as consuming speed?
It's the speed you are currently using. "If the result is 0 or less, you can't use the new speed during the current move."
And around and around we go, at the moment you "stand up" in your square you aren't "currently using" any movement mode at all, because you aren't moving distance. Another fundamental and necessary understanding that we don't share, apparently.
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I'm going to make this way harder than it needs to be.
If you do not have a speed, you are prohibited from spending movement, because your available movement is equal to your speed less the amount you have already spent, which would be zero or negative.
Consider a case your version brings up:
Am I allowed to stand up? In my reading, if you are able to fly while prone (hover), you can change your movement mode to flight and then spend 30 of your 40 remaining movement; if you do not have the ability to hover you are required to use your ground move and cannot stand up.
YOU HAVE A SPEED YOU HAVE ALL OF YOUR SPEEDS ALL THE TIME, THAT IS THE POSITION I HAVE MADE QUITE CLEAR BY NOW. Panta, unless you're just trying to deliberately misunderstand and avoid engaging with the counter argument, I really don't understand what you're doing at this point. Unsubscribed, I'm over it.
In the case example you're providing where you have 10 movement of your 30 Move Speed left and are knocked prone, you cannot stand up because you don't have 15 movement to spend, even if you have 40/60 Fly speed left over. This is true if you're on the ground trying to stand up, or in the air trying to stand up, or underwater trying to stand up, or whatever. Standing up from prone costs an amount of movement equal to half your Speed value(s), and you have less than half of your Move (walk) pool left, so you can't stand up because you don't have enough Move movement points. This is true if you're at 10/30 Move-40/60 Fly, 40/60 Move-10/30 Fly, or any other example you want to provide. If your speed is 30 Move/60 Fly or whatever, standing up spends 15 from your Move pool and 30 from your Fly pool, and can't be done if you don't have enough points in either to spend that.
Bye.
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I'm going to make this way harder than it needs to be.
well, there is the Aarokokra and variant winged Tiefling, both of which have a fly speed, and are both official. I think a 20 ft. fly speed isn't bad compared to 50 ft or 30 ft fly speeds.
I think here the simple and only answer is that the game designers never considered these kinds of circumstances and therefore the rules (written, intended, or otherwise) just don't actually cover it.
If you consider Pantagrual666's example, the rules state that a prone character's only option for movement, unless they stand up, is to crawl-a special form of normal movement-meaning that no matter how look at it, standing will require half of your normal movement. However, if you look at a monster such as the beholder-Speed 0 ft., fly 20 ft. (hover)-if it were to be knocked prone it wouldn't fall out of the air-as the rules clearly state under flying movement-but the rules also just as clearly state that a creature with the prone condition cannot stand up and thereby remove the condition at all if it has 0 speed. Meaning that, RAW once a beholder has fallen it can't ever get up and I really don't think this was intentional.
A beholder does not have 0 speed. It has a 20 ft flying speed that it can use to "stand up" from being prone. Thank you for citing a concrete example that demonstrates the flaw in "your speed is the one you're 'currently using'" position, though.