Using frame.contains() with a rotated sprite
Rotating a sprite doesn't rotate its frame, but instead enlarges it to accomodate the sprite's new dimensions, documented here. The additional area around the sprite creates empty space.
When determining whether the rotated sprite contains another sprite, or a point of its, the contains() function takes into account the empty accumulatedFrame space surrounding the rotated sprite.
How can you change the frame to match the sprite so this doesn't happen?
swift sprite-kit rotation frame gamekit
asked Nov 26 '18 at 9:37
TimTim
2881416
add a comment |
Rotating a sprite doesn't rotate its frame, but instead enlarges it to accomodate the sprite's new dimensions, documented here. The additional area around the sprite creates empty space.
When determining whether the rotated sprite contains another sprite, or a point of its, the contains() function takes into account the empty accumulatedFrame space surrounding the rotated sprite.
How can you change the frame to match the sprite so this doesn't happen?
swift sprite-kit rotation frame gamekit
asked Nov 26 '18 at 9:37
TimTim
2881416
Did you try using SKPhysicsBody ?
– Simone Pistecchia
Nov 27 '18 at 10:31
Frame is bound by the axis, so it will always be relative to your x and y axis, not your character. The variables inside of a frame are x,y,width,height not x1,y1,x2,y2. You are going to either have to use an SKPhysicsBody, or create your own frame. You can use matrix math for this math.stackexchange.com/questions/126967/…
– Knight0fDragon
Nov 27 '18 at 15:40
add a comment |
Rotating a sprite doesn't rotate its frame, but instead enlarges it to accomodate the sprite's new dimensions, documented here. The additional area around the sprite creates empty space.
When determining whether the rotated sprite contains another sprite, or a point of its, the contains() function takes into account the empty accumulatedFrame space surrounding the rotated sprite.
How can you change the frame to match the sprite so this doesn't happen?
swift sprite-kit rotation frame gamekit
asked Nov 26 '18 at 9:37
TimTim
2881416
Rotating a sprite doesn't rotate its frame, but instead enlarges it to accomodate the sprite's new dimensions, documented here. The additional area around the sprite creates empty space.
When determining whether the rotated sprite contains another sprite, or a point of its, the contains() function takes into account the empty accumulatedFrame space surrounding the rotated sprite.
How can you change the frame to match the sprite so this doesn't happen?
swift sprite-kit rotation frame gamekit
swift sprite-kit rotation frame gamekit
asked Nov 26 '18 at 9:37
TimTim
2881416
asked Nov 26 '18 at 9:37
TimTim
2881416
edited Nov 27 '18 at 23:03
Tim
asked Nov 26 '18 at 9:37
TimTim
2881416
asked Nov 26 '18 at 9:37
TimTim
2881416
asked Nov 26 '18 at 9:37
TimTim
2881416
2881416
Did you try using SKPhysicsBody ?
– Simone Pistecchia
Nov 27 '18 at 10:31
Frame is bound by the axis, so it will always be relative to your x and y axis, not your character. The variables inside of a frame are x,y,width,height not x1,y1,x2,y2. You are going to either have to use an SKPhysicsBody, or create your own frame. You can use matrix math for this math.stackexchange.com/questions/126967/…
– Knight0fDragon
Nov 27 '18 at 15:40
add a comment |
Did you try using SKPhysicsBody ?
– Simone Pistecchia
Nov 27 '18 at 10:31
Frame is bound by the axis, so it will always be relative to your x and y axis, not your character. The variables inside of a frame are x,y,width,height not x1,y1,x2,y2. You are going to either have to use an SKPhysicsBody, or create your own frame. You can use matrix math for this math.stackexchange.com/questions/126967/…
– Knight0fDragon
Nov 27 '18 at 15:40
Did you try using SKPhysicsBody ?
– Simone Pistecchia
Nov 27 '18 at 10:31
Did you try using SKPhysicsBody ?
– Simone Pistecchia
Nov 27 '18 at 10:31
Frame is bound by the axis, so it will always be relative to your x and y axis, not your character. The variables inside of a frame are x,y,width,height not x1,y1,x2,y2. You are going to either have to use an SKPhysicsBody, or create your own frame. You can use matrix math for this math.stackexchange.com/questions/126967/…
– Knight0fDragon
Nov 27 '18 at 15:40
Frame is bound by the axis, so it will always be relative to your x and y axis, not your character. The variables inside of a frame are x,y,width,height not x1,y1,x2,y2. You are going to either have to use an SKPhysicsBody, or create your own frame. You can use matrix math for this math.stackexchange.com/questions/126967/…
– Knight0fDragon
Nov 27 '18 at 15:40
add a comment |
1 Answer
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One option is to position SKNodes at each corner of the square before its rotation, and then obtain their points using the convert function afterwards. From there, you can draw a UIBezierPath between them, and check for accurate intersections using contains().
The only problem with this is that the bezier will appear to move with a node when assigned to it, but the actual path is fixed and won't move.
answered Nov 28 '18 at 10:13
TimTim
2881416
add a comment |
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1 Answer
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oldest
votes
active
oldest
votes
One option is to position SKNodes at each corner of the square before its rotation, and then obtain their points using the convert function afterwards. From there, you can draw a UIBezierPath between them, and check for accurate intersections using contains().
The only problem with this is that the bezier will appear to move with a node when assigned to it, but the actual path is fixed and won't move.
answered Nov 28 '18 at 10:13
TimTim
2881416
add a comment |
One option is to position SKNodes at each corner of the square before its rotation, and then obtain their points using the convert function afterwards. From there, you can draw a UIBezierPath between them, and check for accurate intersections using contains().
The only problem with this is that the bezier will appear to move with a node when assigned to it, but the actual path is fixed and won't move.
answered Nov 28 '18 at 10:13
TimTim
2881416
add a comment |
One option is to position SKNodes at each corner of the square before its rotation, and then obtain their points using the convert function afterwards. From there, you can draw a UIBezierPath between them, and check for accurate intersections using contains().
The only problem with this is that the bezier will appear to move with a node when assigned to it, but the actual path is fixed and won't move.
answered Nov 28 '18 at 10:13
TimTim
2881416
One option is to position SKNodes at each corner of the square before its rotation, and then obtain their points using the convert function afterwards. From there, you can draw a UIBezierPath between them, and check for accurate intersections using contains().
The only problem with this is that the bezier will appear to move with a node when assigned to it, but the actual path is fixed and won't move.
answered Nov 28 '18 at 10:13
TimTim
2881416
edited Nov 29 '18 at 10:50
answered Nov 28 '18 at 10:13
TimTim
2881416
answered Nov 28 '18 at 10:13
TimTim
2881416
answered Nov 28 '18 at 10:13
TimTim
2881416
2881416
add a comment |
add a comment |
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Did you try using SKPhysicsBody ?
– Simone Pistecchia
Nov 27 '18 at 10:31
Frame is bound by the axis, so it will always be relative to your x and y axis, not your character. The variables inside of a frame are x,y,width,height not x1,y1,x2,y2. You are going to either have to use an SKPhysicsBody, or create your own frame. You can use matrix math for this math.stackexchange.com/questions/126967/…
– Knight0fDragon
Nov 27 '18 at 15:40