# follows and shoots
require 'robot'
class Seeker
include Robot
attr_accessor
def initialize *args, &block
@rt = @radar_scan = 10
@min_radar_scan = 10.0
@max_radar_scan = 30.0
@radar_turned = false
@min_distance = 0
@direction = 1
super
end
def tick events
@direction = @min_distance - 175
accelerate(@direction)
wturn = 180 - ((radar_heading-heading)%360) + @rt*0.5
wturn = [-10,[10,wturn].min].max
turn wturn
scan events
turn_radar @rt - wturn
fire @direction > 0 ? 0.5 : 3.0
end
def scan events
if events['robot_scanned'].empty?
increase_radar_scan
else
decrease_radar_scan
@min_distance = events['robot_scanned'].min.first
end
@rt = if @radar_turned
-@radar_scan />
else
@radar_scan
end if @radar_scan.abs < @max_radar_scan - 0.1
@radar_turned = !@radar_turned
@rt
end
def increase_radar_scan
@radar_scan *= 1.5
@radar_scan = [@radar_scan, @max_radar_scan].min
end
def decrease_radar_scan
@radar_scan *= 0.5
@radar_scan = [@radar_scan, @min_radar_scan].max
end
end
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