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Fixed curves.

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I shan't be trusted with math.
This commit is contained in:
NathanSweet 2014-07-29 00:08:53 +02:00
parent b9139fc5d4
commit b1d77cc2c4
1 changed files with 5 additions and 4 deletions
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9
spine-libgdx/src/com/esotericsoftware/spine/Animation.java
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@ -134,7 +134,7 @@ public class Animation {
/** Base class for frames that use an interpolation bezier curve. */
abstract static public class CurveTimeline implements Timeline {
static public final float LINEAR = 0, STEPPED = 1, BEZIER = 2;
static private final int BEZIER_SEGMENTS = 10, BEZIER_SIZE = BEZIER_SEGMENTS * 2 - 5;
static private final int BEZIER_SEGMENTS = 10, BEZIER_SIZE = BEZIER_SEGMENTS * 2 - 1;
private final float[] curves; // type, x, y, ...
@ -180,23 +180,24 @@ public class Animation {
float x = dfx, y = dfy;
for (int n = i + BEZIER_SIZE - 1; i < n; i += 2) {
curves[i] = x;
curves[i + 1] = y;
dfx += ddfx;
dfy += ddfy;
ddfx += dddfx;
ddfy += dddfy;
x += dfx;
y += dfy;
curves[i] = x;
curves[i + 1] = y;
}
}
public float getCurvePercent (int frameIndex, float percent) {
float[] curves = this.curves;
int i = frameIndex * BEZIER_SIZE + 1;
int i = frameIndex * BEZIER_SIZE;
float type = curves[i];
if (type == LINEAR) return percent;
if (type == STEPPED) return 0;
i++;
float x = 0;
for (int start = i, n = i + BEZIER_SIZE - 1; i < n; i += 2) {
x = curves[i];