CLEO Help Samp Memory Help

[Olcay]

Hey There!

I need help about cleo scripting offset or memory (whatever i don't know those). What are the meaning of these. I see these functions in every cleo script(e.g: alloc_memory and offset). 

3@ = SAMP.GetSAMPPlayerIDByActorHandle($PLAYER_ACTOR) 
3@ = SAMP.GetPlayerStruct(3@) 
3@ += 170
0AC8: 4@ = allocate_memory_size 63 
0C10: memcpy destination 4@ source 3@ size 63 
0C0D: struct 4@ offset 24 size 4 = 0@ 
0C0D: struct 4@ offset 28 size 4 = 1@ 
0C0D: struct 4@ offset 32 size 4 = 2@ 
0B3D: raknet 5@ = new_bit_stream 
RakNet.Write(5@, 200, BS_TYPE_BYTE, 1) 
RakNet.Write(5@, 4@, BS_TYPE_ARRAY, 63) 
0B8B: raknet send bit_stream 5@                 
0B3E: raknet delete_bit_stream 5@ 
0AC9: 4@ 
0AB2: ret 0

SAMP.SetGameKeyState(17, 255)
Actor.StorePos(1@, 13@, 14@, 15@)
0470: 16@ = actor $PLAYER_ACTOR current_weapon 
0087: 12@ = 15@ // (float) 
12@ += 0.5 
0@ = SAMP.GetSAMPPlayerIDByActorHandle(1@)
alloc 5@ 40 
0C0D: struct 5@ offset 0 size 1 = 1 
0C0D: struct 5@ offset 1 size 2 = 0@ 
0C0D: struct 5@ offset 3 size 4 = 13@ 
0C0D: struct 5@ offset 7 size 4 = 14@ 
0C0D: struct 5@ offset 11 size 4 = 12@ 
0C0D: struct 5@ offset 15 size 4 = 13@ 
0C0D: struct 5@ offset 19 size 4 = 14@ 
0C0D: struct 5@ offset 23 size 4 = 15@ 
0C0D: struct 5@ offset 39 size 1 = 16@ 
0C0D: struct 5@ offset 27 size 4 = 0.0 
0C0D: struct 5@ offset 31 size 4 = 0.0 
0C0D: struct 5@ offset 35 size 4 = 0.5 
6@ = RakNet.NewBitStream()
BitStream.Write(6@, 206, BS_TYPE_BYTE, 1)
BitStream.Write(6@, 5@, BS_TYPE_ARRAY, 40)
RakNet.LiteSend(6@)
RakNet.DeleteBitStream(6@)
free 5@ 
SAMP.SetGameKeyState(17, 0)

So, please can someone explain detailed these to me, or is there any tutorial about that? I wonder how can i use alloc memory, struct and offset like above samples? Thank You!