question: public AABB merge ( AABB other ) { minX = Math . min ( minX , other . minX ) ; maxX = Math . max ( maxX , other . maxX ) ; minY = Math . min ( minY , other . minY ) ; maxY = Math . max ( maxY , other . maxY ) ; minZ = Math . min ( minZ , other . minZ ) ; maxZ = Math . max ( maxZ , other . maxZ ) ; return this ; }
target:  Computes an AABB that contains both this and other and stores it in this.