Migration to new SBL modes in SB4

When converting code from old legacy modes based on INI with custom parameter order, keep in mind the following conventions used in new SBL modes (GTA III SBL, GTA VC SBL, GTA SA SBL):

• all params follow their original order, where output variables go after input arguments (create_player 0 0 0 0 store_to $player1)

  • SB4 provides special syntax, where outputs in an assignment expression can be listed on the left-hand side, e.g. $player1 = create_player 0 0 0 0)

• command name can be used instead of opcode (shake_cam 100)

• Actor is called Char

• Marker is called Blip

• Model class no longer exists, its methods can be found in static Streaming class

• $PLAYER_CHAR replaced with $player1

• $PLAYER_ACTOR replaced with $scplayer

• angle is called heading

• thread is called script