this is the basic... doesn't search for if its facing water or anything... 2 would be a normal jump... but can be changed... if you need to put it in common event make it... though i assume if you put "ignore imposible moves" it might not jump into area's you can't walk on...
make an armor, EX: jump shoes... and make the event when you get the shoes turn on a switch...
make a new common event and put it as... "trigger"-"parallel process"-"switch that was turned on when u got shoes"
make it look something like this...
conditional branch "jump shoes" equiped
conditional branch "key" is pressed
Conditional branch player facing right
player move - jump +0, +2
end
conditional branch player facing left
player move - jump +0, -2
end
conditional branch player facing up
player move - jump +2, +0
end
conditional branch player facing down
player move - jump -2, +0
end
end
end
hope it works.. haven't tried... but I know i had done something like this b4... never tested this one...