fix_rat_fall_anim_skip

-- fix for rats skipping landing animation
--
-- Xq & VernonKun 2020
--
-- This adjustment is intended to work with QoL modpack
-- To "install" copy the file to "steamapps\common\Warhammer End Times Vermintide\binaries\mods\patch"

local mod_name = "fix_rat_fall_anim_skip"


local clear_jump_climb_finished = function(blackboard)
    -- EchoConsole("jump_climb_finished set to nil")
    blackboard.jump_climb_finished = nil
    return
end

local set_jump_climb_finished = function(blackboard)
    -- EchoConsole("jump_climb_finished set to true")
    blackboard.jump_climb_finished = true
    return
end

local JUMP_CLIMB_FINISHED_DELAY = 0.06  -- seconds
local JUMP_CLIMB_FAILSAFE_TIME  = 3     -- seconds
local mod_fall_data = {}

Mods.hook.set(mod_name , "BTFallAction.enter", function(func, self, unit, blackboard, t)
    local ret = func(self, unit, blackboard, t)
    clear_jump_climb_finished(blackboard)
    -- mod_fall_data[unit] = nil
    return ret
end)

Mods.hook.set(mod_name , "BTFallAction.run", function(func, self, unit, blackboard, t, dt)

    -- if not mod_fall_data[unit] then
        -- mod_fall_data[unit] =
        -- {
            -- land_start_time  = nil,
            -- last_climb_state = "",
            -- last_climb_state_1   = "",
        -- }
    -- end

    if blackboard.climb_state ==  "waiting_to_collide_down" and blackboard.jump_climb_finished then
        clear_jump_climb_finished(blackboard)
    end

    -- if blackboard.climb_state == "waiting_to_land" and mod_fall_data[unit].last_climb_state_1 == "waiting_to_collide_down" then
        -- mod_fall_data[unit].land_start_time = t
    -- end

    -- local land_started       = mod_fall_data[unit].land_start_time
    -- local land_duration  = land_started and t - land_started

    -- if land_started and land_duration > JUMP_CLIMB_FAILSAFE_TIME then
        -- EchoConsole("stuck in fall loop:" .. tostring(unit))
        -- set_jump_climb_finished(blackboard)
    -- end

    -- if land_started and blackboard.climb_state == "waiting_to_land" and blackboard.jump_climb_finished then
        -- EchoConsole(land_duration)
        -- if land_duration < JUMP_CLIMB_FINISHED_DELAY then
            -- EchoConsole("bugged land found")
            -- clear_jump_climb_finished(blackboard)
        -- else
            -- mod_fall_data[unit].land_start_time = nil
        -- end
    -- end

    local ret = func(self, unit, blackboard, t, dt)

    -- mod_fall_data[unit].last_climb_state_1 = mod_fall_data[unit].last_climb_state
    -- mod_fall_data[unit].last_climb_state = blackboard.climb_state


    -- for loop_unit,_ in pairs(mod_fall_data) do
        -- if not Unit.alive(loop_unit) then
            -- mod_fall_data[loop_unit] = nil
        -- end
    -- end

    return ret
end)

-- Mods.hook.set(mod_name , "BTFallAction.leave", function(func, self, unit, blackboard, t, reason)
    -- mod_fall_data[unit].land_start_time = nil

    -- func(self, unit, blackboard, t)
-- end)