local Balance = require 'config.balance'
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local M = {}
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local current_area = nil
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local current_radius = nil
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local shrink_timer = nil
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local damage_timer = nil
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local next_shrink_timer = nil
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-- ---------------------------------------------------------
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-- 启动
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-- ---------------------------------------------------------
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function M.start()
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current_radius = Balance.CIRCLE_INIT_RADIUS
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local map_area = clicli.area.get_map_area()
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local center = map_area:get_center_point()
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current_area = clicli.area.create_circle_area(center, current_radius)
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current_area:add_tag('play_zone')
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next_shrink_timer = clicli.timer.wait(Balance.CIRCLE_FIRST_SHRINK, function()
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M.shrink()
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end)
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end
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-- ---------------------------------------------------------
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-- 缩圈
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-- ---------------------------------------------------------
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function M.shrink()
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if not current_area then return end
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local new_radius = current_radius * Balance.CIRCLE_SHRINK_RATIO
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if new_radius < Balance.CIRCLE_MIN_RADIUS then
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new_radius = Balance.CIRCLE_MIN_RADIUS
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end
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local delta = current_radius - new_radius
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local steps = math.max(1, math.ceil(delta / 0.5))
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shrink_timer = clicli.timer.count_loop(1.0, steps, function(timer, count)
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current_radius = current_radius - 0.5
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if current_radius < new_radius then
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current_radius = new_radius
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end
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current_area:set_radius(current_radius)
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end)
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M.start_damage()
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if current_radius > Balance.CIRCLE_MIN_RADIUS then
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next_shrink_timer = clicli.timer.wait(Balance.CIRCLE_INTERVAL, function()
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M.shrink()
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end)
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end
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end
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-- ---------------------------------------------------------
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-- 区域外持续伤害
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-- ---------------------------------------------------------
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function M.start_damage()
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if damage_timer then return end
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damage_timer = clicli.timer.loop(2.0, function()
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if not current_area then return end
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local PlayerMgr = require 'core.player_manager'
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for _, pd in ipairs(PlayerMgr.get_all_player_units()) do
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if pd.alive then
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local pos = pd.unit:get_point()
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if not current_area:is_point_in_area(pos) then
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pd.unit:add_hp(-Balance.CIRCLE_DAMAGE_PER_TICK)
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end
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end
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end
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end, '圈外伤害')
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end
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-- ---------------------------------------------------------
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-- 停止
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-- ---------------------------------------------------------
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function M.stop()
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if shrink_timer then shrink_timer:remove(); shrink_timer = nil end
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if damage_timer then damage_timer:remove(); damage_timer = nil end
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if next_shrink_timer then next_shrink_timer:remove(); next_shrink_timer = nil end
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if current_area then current_area:remove(); current_area = nil end
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end
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return M
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