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Initial Implementation of a "weighted" spinner

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Added angular velocity and angular drag
This commit is contained in:
PizzaLovers007 2015-02-09 17:11:49 -06:00
parent 8d00a0f81e
commit 826376a127
1 changed files with 15 additions and 6 deletions
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21
src/itdelatrisu/opsu/objects/Spinner.java
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@ -37,6 +37,10 @@ import org.newdawn.slick.Image;
* Data type representing a spinner object.
*/
public class Spinner implements HitObject {
/** The rate at which the spinner slows down in radians/second^2. */
private static final float angularDrag = 500f;
/** Container dimensions. */
private static int width, height;
@ -54,6 +58,9 @@ public class Spinner implements HitObject {
/** The total number of rotations needed to clear the spinner. */
private float rotationsNeeded;
/** The current angular velocity of the spinner in radians/second. */
private float angularVelocity;
/**
* Initializes the Spinner data type with images and dimensions.
@ -186,8 +193,10 @@ public class Spinner implements HitObject {
if (lastAngle >= 0f) { // skip initial clicks
float angleDiff = Math.abs(lastAngle - angle);
if (angleDiff < Math.PI / 2) { // skip huge angle changes...
angularVelocity = Math.max(angularVelocity - angularDrag * delta / 1000,
angleDiff / (Math.PI * 2) / ((float)delta / 1000));
data.changeHealth(delta * GameData.HP_DRAIN_MULTIPLIER);
rotate(angleDiff);
rotate(angularVelocity * delta / 1000);
}
}
@ -196,11 +205,11 @@ public class Spinner implements HitObject {
}
/**
* Rotates the spinner by a number of degrees.
* @param degrees the angle to rotate (in radians)
* Rotates the spinner by a number of radians.
* @param angle the angle to rotate (in radians)
*/
private void rotate(float degrees) {
float newRotations = rotations + (degrees / (float) (2 * Math.PI));
private void rotate(float angle) {
float newRotations = rotations + (angle / (float) (2 * Math.PI));
// added one whole rotation...
if (Math.floor(newRotations) > rotations) {
@ -215,4 +224,4 @@ public class Spinner implements HitObject {
rotations = newRotations;
}
}
}