Here's 2 ways to play the main riff:
1st way :)
e-------------------------------------------------------------------|
B----13--13--13--13--12--12--12--12-12-12-12-12---------------------|
G--12--12--12--12--12--12--12--12--9--9--9--9-----12--12--12--12----|
D-----------------------------------------------10--10--10--10------|
A-------------------------------------------------------------------|
E ------------------------------------------------------------------|

2nd way :)
e--------------------------------------------------|
B---1-1-1-1-0-0-0-0--0-0-0-0-----------------------|
G--0-0-0-0-0-0-0-0------------0-0-0-0--------------|
D-------------------2-2-2-2------------------------|
A----------------------------3-3-3-3---------------|
E--------------------------------------------------|

Verse:
(Palm muted)
Am                    Em
I feel so close to you right now
It's a force field
G                   C
I wear my heart upon my sleeve,
like a big deal
Am                Em
Your love pours down on me,
                   G
surround me like a waterfall
                        C
And there's no stopping us right now
Am                    Em
I feel so close to you right now

[riff plays]

Am                    Em
I feel so close to you right now
It's a force field
G                   C
I wear my heart upon my sleeve,
like a big deal
Am                Em
Your love pours down on me,
                  G
surround me like a waterfall
                        C
And there's no stopping us right now
Am                    Em
I feel so close to you right now

[riff plays]

G                       C
And there's no stopping us right now
G                       C
And there's no stopping us right now
G                       C
And there's no stopping us right now
Am                   Em
I feel so close to you right now... 

 Tuning: Standard

Chords for the Verse are:
Am Em G C

You can play these barred if you like.
Chorus is slightly more complex as the bass takes effect 
as follows.

Am B Em F# G D C C B A Em G

Main Bass Riff
e|-------------------------------------------------------------------|
B|-------------------------------------------------------------------|
G|-------------------------------------------------------------------|
D|-------------------------------------------------------------------|
A|-----------------------------------------5-5-5-5-3-3-3-3---3-2-0---|
E|-5-5-5-5-7-7-7-7-0-0-0-0-2-2-2-2-3-3-3-3-------------------------3-|

You can always play these with barred chords. 
Listen to the song to gain the tempo and 
movement of notes towards the end of the rift.

Finally there is a guitar lead that comes in just 
before the chorus to and plays throughout. 
Its picked at first and then its strummed upwards later 
at just a fraction off timing.

Guitar Riff
e|-------------------------------------------------------------------|
B|---13--13--13--13--12--12--12-12--12-12-12-12--8--8--8-8-----------|
G|-12--12--12--12--12--12--12--12--9--9--9--9--5--5-5-5--------------|
D|-------------------------------------------------------------------|
A|-------------------------------------------------------------------|
E|-------------------------------------------------------------------|

Am       Em      G
I feel so close to you right now
       C
It's a force feel

I wear my heart upon my sleeve, like a big deal
Your love bows down, I mean surround me like a waterfall
And there's no stopping us right now
I feel so close to you right now

(Guitar Rift)
(Bass Rift and Guitar Rift Strum)

I feel so close to you right now
It's a force feel
I wear my heart upon my sleeve, like a big deal
Your love bows down, I mean surround me like a waterfall
And there's no stopping us right now
I feel so close to you right now

(Guitar Rift)
(Bass Rift and Guitar Rift Strum)
And there's no stopping us right now
And there's no stopping us right now
And there's no stopping us right now
I feel so close to you right now... 

 OK HERE IS THE GUITAR RIFF, THE BASS AND THE CHORDS DONE BY EAR...
 
Guitar Riff

e --8--8--8--8--7--7--7--7--7--7--7--7--3--3--3--3-|
B -8--8--8--8--8--8--8--8--5--5--5--5--1--1--1--1--|
G -------------------------------------------------|
D -------------------------------------------------|
A -------------------------------------------------|
E -------------------------------------------------|

Bass Part

G -------------------------------------------------------------------|
D -----------------------------------------0-0-0-0-------------------|
A -0-0-0-0-2-2-2-2---------------------------------3-3-3-3-3-2-0-----|
E -----------------0-0-0-0-2-2-2-2-3-3-3-3-----------------------3---|

Chords

e -0-|-0-|-3-|-0-|-------|
B -1-|-0-|-3-|-1-|-------|
G -0-|-0-|-0-|-0-|-------|
D -2-|-2-|-0-|-2-|-------|
A -3-|-2-|-2-|-3-|-------|
E ---|-0-|-3-|---|-------|

  C  Em G  C

A SIMPLE BUT BRILLIANT SONG... 

 Vocals:
e|-----------------------------------------------|
B|-----------------------------------------------|
G|-----------------------------------------------|
D|----5-7-9-7-5------0-5-5-----7-----------------|
A|----------------7---------7-----7--------------|
E|-----------------------------------------------|

e|-----------------------------------------------|
B|-----------------------------------------------|
G|-----------------------------------------------|
D|----5-7-9-7-5------0-5-5-----7-----------------|
A|----------------7---------7-----7--------------|
E|-----------------------------------------------|

e|-----------------------------------------------|
B|-----------------------------------------------|
G|-----------------------------------------------|
D|----5-7-9-7-5------0-5-5-----7-7---------------|
A|----------------7---------7-------7------------|
E|-----------------------------------------------|

e|-----------------------------------------------|
B|-----------------------------------------------|
G|-----------------------------------------------|
D|----5-7-9-7-5------0-5---5-7-9-7-5----05-------|
A|----------------7-------------------7----------|
E|-----------------------------------------------| 

 Tuning:Standard

Chords for the Intro are: 
C Em D C 

This is played on a Piano and Barre chords sound better on guitar

Main Riff:
e|--------------------------------------------------------------------|
B|--13--13--13--13--12--12--12-12--12-12-12-12-8-8-8-8----------------|
G|12--12--12--12--12--12--12--12--9--9--9--9--5-5-5-5-----------------|
D|--------------------------------------------------------------------|
A|--------------------------------------------------------------------|
E|--------------------------------------------------------------------|