Renames interpolation method in CCColor

Former-commit-id: 6efbdff

Author: vlidholt

cocos2d/Support/CCColor.h

@@ -307,14 +307,14 @@
 /// -----------------------------------------------------------------------
 
 /**
- *  Linearly interpolate from this color to 'toColor'. Parameter t is normalised
+ *  Linearly interpolate from this color to 'toColor'. Parameter alpha is normalised
  *
  *  @param toColor Color to interpolate to.
- *  @param t       Normalised progress.
+ *  @param alpha   Normalised alpha opacity of toColor.
  *
  *  @return The interpolated color.
  */
-- (CCColor*)interpolateTo:(CCColor *) toColor time:(float) t;
+- (CCColor*)interpolateTo:(CCColor *) toColor alpha:(float) alpha;
 
 @end
 
@@ -357,4 +357,4 @@
 //
 - (BOOL)isEqualToColor:(CCColor*) color;
 
-@end
+@end

cocos2d/Support/CCColor.m

@@ -211,7 +211,7 @@ - (BOOL) getWhite:(float *)white alpha:(float *)alpha
     return YES;
 }
 
-- (CCColor*) interpolateTo:(CCColor *) toColor time:(float) t
+- (CCColor*) interpolateTo:(CCColor *) toColor alpha:(float) t
 {
 	return [CCColor colorWithCcColor4f:ccc4FInterpolated(self.ccColor4f, toColor.ccColor4f, t)];
 }