How to use Analogue Sticks (joystick) output values to rotate an object using transform matrix?
Given that analog stick outputs values
float xaxisval = controller->left_stick_x_axis(); //-1 is left, 1 is right
float yaxisval = controller->left_stick_y_axis(); //-1 is up, 1 is down
Values go from 0 to 1 with which can be used for sensitivity.
I'm moving the character in the direction of the joystick in a 3D environment the same way you would in a game like Diablo. I'm adding and retracting these values from X and Z position to move him. But the character is always facing the same dierection.
How can I use these values and convert them into degrees?
xaxisval += controller->left_stick_x_axis() /100;
yaxisval += controller->left_stick_y_axis() /100;
distAdjust.SetTranslation(Vector4(xaxisval, 0, yaxisval));
rotateAdjust.RotationX(rotateDegrees);
player_->set_transform(player_transform *distAdjust *rotateAdjust)
Problem I have is the movement only works with fixed rotation, if I rotate the object then it moves into a different direction.
c++ visual-studio-2017
asked Nov 23 '18 at 14:53
reverse coding guru
82
add a comment |
Given that analog stick outputs values
float xaxisval = controller->left_stick_x_axis(); //-1 is left, 1 is right
float yaxisval = controller->left_stick_y_axis(); //-1 is up, 1 is down
Values go from 0 to 1 with which can be used for sensitivity.
I'm moving the character in the direction of the joystick in a 3D environment the same way you would in a game like Diablo. I'm adding and retracting these values from X and Z position to move him. But the character is always facing the same dierection.
How can I use these values and convert them into degrees?
xaxisval += controller->left_stick_x_axis() /100;
yaxisval += controller->left_stick_y_axis() /100;
distAdjust.SetTranslation(Vector4(xaxisval, 0, yaxisval));
rotateAdjust.RotationX(rotateDegrees);
player_->set_transform(player_transform *distAdjust *rotateAdjust)
Problem I have is the movement only works with fixed rotation, if I rotate the object then it moves into a different direction.
c++ visual-studio-2017
asked Nov 23 '18 at 14:53
reverse coding guru
82
Are you trying to calculate an angle from your x/y axis values? If so, thenatan2from<math.h>can do that. Check out the example at cplusplus.com/reference/cmath/atan2
– Blaze
Nov 23 '18 at 14:57
Please be more specific about what kind of movement you want. I assume this is 2D?
– Nico Schertler
Nov 23 '18 at 15:00
@Nico No, this is a lovked perspective game, 3D environment where I want to move the player character around like you would in diablo. Using just the joystick.
– reverse coding guru
Nov 23 '18 at 15:04
So, that would mean - the horizontal axis of the joystick makes your character rotate around its vertical axis and the vertical axis of the joystick makes your player move forward/backward?
– Nico Schertler
Nov 23 '18 at 15:07
add a comment |
Given that analog stick outputs values
float xaxisval = controller->left_stick_x_axis(); //-1 is left, 1 is right
float yaxisval = controller->left_stick_y_axis(); //-1 is up, 1 is down
Values go from 0 to 1 with which can be used for sensitivity.
I'm moving the character in the direction of the joystick in a 3D environment the same way you would in a game like Diablo. I'm adding and retracting these values from X and Z position to move him. But the character is always facing the same dierection.
How can I use these values and convert them into degrees?
xaxisval += controller->left_stick_x_axis() /100;
yaxisval += controller->left_stick_y_axis() /100;
distAdjust.SetTranslation(Vector4(xaxisval, 0, yaxisval));
rotateAdjust.RotationX(rotateDegrees);
player_->set_transform(player_transform *distAdjust *rotateAdjust)
Problem I have is the movement only works with fixed rotation, if I rotate the object then it moves into a different direction.
c++ visual-studio-2017
asked Nov 23 '18 at 14:53
reverse coding guru
82
Given that analog stick outputs values
float xaxisval = controller->left_stick_x_axis(); //-1 is left, 1 is right
float yaxisval = controller->left_stick_y_axis(); //-1 is up, 1 is down
Values go from 0 to 1 with which can be used for sensitivity.
I'm moving the character in the direction of the joystick in a 3D environment the same way you would in a game like Diablo. I'm adding and retracting these values from X and Z position to move him. But the character is always facing the same dierection.
How can I use these values and convert them into degrees?
xaxisval += controller->left_stick_x_axis() /100;
yaxisval += controller->left_stick_y_axis() /100;
distAdjust.SetTranslation(Vector4(xaxisval, 0, yaxisval));
rotateAdjust.RotationX(rotateDegrees);
player_->set_transform(player_transform *distAdjust *rotateAdjust)
Problem I have is the movement only works with fixed rotation, if I rotate the object then it moves into a different direction.
c++ visual-studio-2017
c++ visual-studio-2017
asked Nov 23 '18 at 14:53
reverse coding guru
82
asked Nov 23 '18 at 14:53
reverse coding guru
82
edited Nov 23 '18 at 15:54
asked Nov 23 '18 at 14:53
reverse coding guru
82
asked Nov 23 '18 at 14:53
reverse coding guru
82
asked Nov 23 '18 at 14:53
reverse coding guru
82
82
Are you trying to calculate an angle from your x/y axis values? If so, thenatan2from<math.h>can do that. Check out the example at cplusplus.com/reference/cmath/atan2
– Blaze
Nov 23 '18 at 14:57
Please be more specific about what kind of movement you want. I assume this is 2D?
– Nico Schertler
Nov 23 '18 at 15:00
@Nico No, this is a lovked perspective game, 3D environment where I want to move the player character around like you would in diablo. Using just the joystick.
– reverse coding guru
Nov 23 '18 at 15:04
So, that would mean - the horizontal axis of the joystick makes your character rotate around its vertical axis and the vertical axis of the joystick makes your player move forward/backward?
– Nico Schertler
Nov 23 '18 at 15:07
add a comment |
Are you trying to calculate an angle from your x/y axis values? If so, thenatan2from<math.h>can do that. Check out the example at cplusplus.com/reference/cmath/atan2
– Blaze
Nov 23 '18 at 14:57
Please be more specific about what kind of movement you want. I assume this is 2D?
– Nico Schertler
Nov 23 '18 at 15:00
@Nico No, this is a lovked perspective game, 3D environment where I want to move the player character around like you would in diablo. Using just the joystick.
– reverse coding guru
Nov 23 '18 at 15:04
So, that would mean - the horizontal axis of the joystick makes your character rotate around its vertical axis and the vertical axis of the joystick makes your player move forward/backward?
– Nico Schertler
Nov 23 '18 at 15:07
Are you trying to calculate an angle from your x/y axis values? If so, then
atan2 from <math.h> can do that. Check out the example at cplusplus.com/reference/cmath/atan2– Blaze
Nov 23 '18 at 14:57
Are you trying to calculate an angle from your x/y axis values? If so, then
atan2 from <math.h> can do that. Check out the example at cplusplus.com/reference/cmath/atan2– Blaze
Nov 23 '18 at 14:57
Please be more specific about what kind of movement you want. I assume this is 2D?
– Nico Schertler
Nov 23 '18 at 15:00
Please be more specific about what kind of movement you want. I assume this is 2D?
– Nico Schertler
Nov 23 '18 at 15:00
@Nico No, this is a lovked perspective game, 3D environment where I want to move the player character around like you would in diablo. Using just the joystick.
– reverse coding guru
Nov 23 '18 at 15:04
@Nico No, this is a lovked perspective game, 3D environment where I want to move the player character around like you would in diablo. Using just the joystick.
– reverse coding guru
Nov 23 '18 at 15:04
So, that would mean - the horizontal axis of the joystick makes your character rotate around its vertical axis and the vertical axis of the joystick makes your player move forward/backward?
– Nico Schertler
Nov 23 '18 at 15:07
So, that would mean - the horizontal axis of the joystick makes your character rotate around its vertical axis and the vertical axis of the joystick makes your player move forward/backward?
– Nico Schertler
Nov 23 '18 at 15:07
add a comment |
1 Answer
1
active
oldest
votes
I don't know what your function "rotateAdjust.RotationX(rotateDegrees);" really do.
But, you should for every game cycle take the value from 0 to 1 from your joystick, then multiply it by a constant angle depending of your rotation speed.
const float Angle = 1.0f; // Or whatever you want. Set more to increase rotation speed.
...
// Game loop
while ( true )
{
...
float xSensitivity = controller->left_stick_x_axis(); // example 0.33f for that cycle
myGuy.xRotate(Angle * xSensitivity);
...
}
"Angle" is a constant and can be expressed in degree or radian depending of your rotation function.
answered Nov 23 '18 at 15:41
Sébastien Bémelmans
1251311
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53448856%2fhow-to-use-analogue-sticks-joystick-output-values-to-rotate-an-object-using-tr%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I don't know what your function "rotateAdjust.RotationX(rotateDegrees);" really do.
But, you should for every game cycle take the value from 0 to 1 from your joystick, then multiply it by a constant angle depending of your rotation speed.
const float Angle = 1.0f; // Or whatever you want. Set more to increase rotation speed.
...
// Game loop
while ( true )
{
...
float xSensitivity = controller->left_stick_x_axis(); // example 0.33f for that cycle
myGuy.xRotate(Angle * xSensitivity);
...
}
"Angle" is a constant and can be expressed in degree or radian depending of your rotation function.
answered Nov 23 '18 at 15:41
Sébastien Bémelmans
1251311
add a comment |
I don't know what your function "rotateAdjust.RotationX(rotateDegrees);" really do.
But, you should for every game cycle take the value from 0 to 1 from your joystick, then multiply it by a constant angle depending of your rotation speed.
const float Angle = 1.0f; // Or whatever you want. Set more to increase rotation speed.
...
// Game loop
while ( true )
{
...
float xSensitivity = controller->left_stick_x_axis(); // example 0.33f for that cycle
myGuy.xRotate(Angle * xSensitivity);
...
}
"Angle" is a constant and can be expressed in degree or radian depending of your rotation function.
answered Nov 23 '18 at 15:41
Sébastien Bémelmans
1251311
add a comment |
I don't know what your function "rotateAdjust.RotationX(rotateDegrees);" really do.
But, you should for every game cycle take the value from 0 to 1 from your joystick, then multiply it by a constant angle depending of your rotation speed.
const float Angle = 1.0f; // Or whatever you want. Set more to increase rotation speed.
...
// Game loop
while ( true )
{
...
float xSensitivity = controller->left_stick_x_axis(); // example 0.33f for that cycle
myGuy.xRotate(Angle * xSensitivity);
...
}
"Angle" is a constant and can be expressed in degree or radian depending of your rotation function.
answered Nov 23 '18 at 15:41
Sébastien Bémelmans
1251311
I don't know what your function "rotateAdjust.RotationX(rotateDegrees);" really do.
But, you should for every game cycle take the value from 0 to 1 from your joystick, then multiply it by a constant angle depending of your rotation speed.
const float Angle = 1.0f; // Or whatever you want. Set more to increase rotation speed.
...
// Game loop
while ( true )
{
...
float xSensitivity = controller->left_stick_x_axis(); // example 0.33f for that cycle
myGuy.xRotate(Angle * xSensitivity);
...
}
"Angle" is a constant and can be expressed in degree or radian depending of your rotation function.
answered Nov 23 '18 at 15:41
Sébastien Bémelmans
1251311
edited Nov 28 '18 at 11:43
answered Nov 23 '18 at 15:41
Sébastien Bémelmans
1251311
answered Nov 23 '18 at 15:41
Sébastien Bémelmans
1251311
answered Nov 23 '18 at 15:41
Sébastien Bémelmans
1251311
1251311
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53448856%2fhow-to-use-analogue-sticks-joystick-output-values-to-rotate-an-object-using-tr%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Are you trying to calculate an angle from your x/y axis values? If so, then
atan2from<math.h>can do that. Check out the example at cplusplus.com/reference/cmath/atan2– Blaze
Nov 23 '18 at 14:57
Please be more specific about what kind of movement you want. I assume this is 2D?
– Nico Schertler
Nov 23 '18 at 15:00
@Nico No, this is a lovked perspective game, 3D environment where I want to move the player character around like you would in diablo. Using just the joystick.
– reverse coding guru
Nov 23 '18 at 15:04
So, that would mean - the horizontal axis of the joystick makes your character rotate around its vertical axis and the vertical axis of the joystick makes your player move forward/backward?
– Nico Schertler
Nov 23 '18 at 15:07