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Game maker lengthdir inner implementation
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I wonder how lenghtdir_x/y is implemented. To my understanding this has something to do with trigonometry but since I'm a fairly new to all of this I can't figure it out myself.
game-maker
asked Mar 28 at 14:15
smark1smark1
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I wonder how lenghtdir_x/y is implemented. To my understanding this has something to do with trigonometry but since I'm a fairly new to all of this I can't figure it out myself.
game-maker
asked Mar 28 at 14:15
smark1smark1
62 bronze badges
add a comment
|
I wonder how lenghtdir_x/y is implemented. To my understanding this has something to do with trigonometry but since I'm a fairly new to all of this I can't figure it out myself.
game-maker
asked Mar 28 at 14:15
smark1smark1
62 bronze badges
I wonder how lenghtdir_x/y is implemented. To my understanding this has something to do with trigonometry but since I'm a fairly new to all of this I can't figure it out myself.
game-maker
game-maker
asked Mar 28 at 14:15
smark1smark1
62 bronze badges
asked Mar 28 at 14:15
smark1smark1
62 bronze badges
asked Mar 28 at 14:15
smark1smark1
62 bronze badges
asked Mar 28 at 14:15
smark1smark1
62 bronze badges
asked Mar 28 at 14:15
smark1smark1
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62 bronze badges
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1 Answer
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You are correct, it is a bit of trigonometry - namely, converting from degrees to radians, and then multiplying a sine/cosine of that angle by "length" (hence why it is called length-dir)
lengthdir_x(l, d) is l * cos(d * pi / -180)
lengthdir_y(l, d) is l * sin(d * pi / -180)
live demo for comparison
answered Mar 29 at 7:26
YellowAfterlifeYellowAfterlife
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You are correct, it is a bit of trigonometry - namely, converting from degrees to radians, and then multiplying a sine/cosine of that angle by "length" (hence why it is called length-dir)
lengthdir_x(l, d) is l * cos(d * pi / -180)
lengthdir_y(l, d) is l * sin(d * pi / -180)
live demo for comparison
answered Mar 29 at 7:26
YellowAfterlifeYellowAfterlife
1,0519 silver badges21 bronze badges
add a comment
|
You are correct, it is a bit of trigonometry - namely, converting from degrees to radians, and then multiplying a sine/cosine of that angle by "length" (hence why it is called length-dir)
lengthdir_x(l, d) is l * cos(d * pi / -180)
lengthdir_y(l, d) is l * sin(d * pi / -180)
live demo for comparison
answered Mar 29 at 7:26
YellowAfterlifeYellowAfterlife
1,0519 silver badges21 bronze badges
add a comment
|
You are correct, it is a bit of trigonometry - namely, converting from degrees to radians, and then multiplying a sine/cosine of that angle by "length" (hence why it is called length-dir)
lengthdir_x(l, d) is l * cos(d * pi / -180)
lengthdir_y(l, d) is l * sin(d * pi / -180)
live demo for comparison
answered Mar 29 at 7:26
YellowAfterlifeYellowAfterlife
1,0519 silver badges21 bronze badges
You are correct, it is a bit of trigonometry - namely, converting from degrees to radians, and then multiplying a sine/cosine of that angle by "length" (hence why it is called length-dir)
lengthdir_x(l, d) is l * cos(d * pi / -180)
lengthdir_y(l, d) is l * sin(d * pi / -180)
live demo for comparison
answered Mar 29 at 7:26
YellowAfterlifeYellowAfterlife
1,0519 silver badges21 bronze badges
answered Mar 29 at 7:26
YellowAfterlifeYellowAfterlife
1,0519 silver badges21 bronze badges
answered Mar 29 at 7:26
YellowAfterlifeYellowAfterlife
1,0519 silver badges21 bronze badges
answered Mar 29 at 7:26
YellowAfterlifeYellowAfterlife
1,0519 silver badges21 bronze badges
1,0519 silver badges21 bronze badges
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