Pursuits

The Pursuit alteration will cause the sprite to follow another sprite. If no speed is given then the pursuing sprite will not move but only point at the sprite that it is following.

View example in tutorial


create routine as Start
	launch ball
	launch arrow
end

create sprite from arrow1.png as arrow
	where x=150 and y=170 and center=50,26 and angle=90 and size=0.25
	having alt=pursuit1
end

create pursuit as pursuit1
	where prey=ball and speed=230 and follow=300
end

create sprite from ball1.png as ball
	where x=150 and y=30 and center=25,25
	having alt=move1
end

create translation as move1
	where x=random(0,300) and y=random(0,300) and speed=100 and completion=DoneTrans
end

create routine as DoneTrans
	insert into ball where alt=move1
end

Parameters

follow={number}: speed of rotation toward prey in degrees per second
prey={sprite}: the name of the sprite to follow
speed={number}: speed of pursuit in pixels per seconds