Fix numerous bugs involving the robot blocked array. #551
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Probably do not merge until 2.94 due to how sketchy this is. * The blocked array update flag is now cleared when the blocked array is updated (compatibility for 2.80 until 2.94). * The blocked array update flag is now set for DUPLICATE SELF XY and DUPLICATE SELF DIR (compatibility for 2.80 until 2.94). * SPITFIRE, SHOOTSEEKER, and SHOOTMISSILE now set the blocked array update flag instead of manually recalculating it (compatibility for 2.83 until 2.94). * IF DIR OF PLAYER now uses the player's blocked status instead of the current robot's (compatibility for 1.x until 2.94). * find_player() is no longer called in run_robot() unless the blocked array update flag is set. TODO: * Some kind of fix for SET/INC/DEC et al. changing the board but not setting update_blocked. * Changelog entries pre-2.94 if this gets merged before then. * Regression tests (several of them).
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Probably do not merge until 2.94 due to how sketchy this is.
TODO:
SET/INC/DEC/SET RANDOM/INC RANDOM/DEC RANDOM/MULTIPLY/DIVIDE/MODULO/DOUBLE/HALFneed to setupdate_blockedif they write to a board counter.find_player()back into theupdate_blockedbranch for all version variants. This is probably true, but it's the most dangerous change in this patch.