check lua value is funciton

Return the min of two cpFloats.

Uses complex number multiplication to rotate v1 by v2. Scaling will occur if v1 is not a unit vector.

Get the first child node, or null if none exists.

Return the max of two cpFloats.

* Returns the square of s (e.g. s*s) */

Copy a C object */

Get the name of an element (which is the Value() of the node.)

Given an attribute name, QueryIntAttribute() returns XML_NO_ERROR, XML_WRONG_ATTRIBUTE_TYPE if the conversion can't be performed, or X

"add" logic MUST only be on this method * If a class want's to extend the 'addChild' behavior it only needs * to override this method */

zOrder getter

Returns point multiplied by given factor. @return CCPoint @since v0.7.2 */

Return the absolute value of a cpFloat.

Clamp @c f to be between @c min and @c max.

returns the current touch location in OpenGL coordinates

* @brief Get Handler By DelegateEvent Type */

addChild helper, faster than insertChild

Returns true if the body is static.

LabelBMFont - AnchorPoint

Concatenate `t2' to `t1' and return the result: t' = t1 * t2 */

Returns a perpendicular vector. (90 degree rotation)