初始化提交

Content/Lua/GamePlay/BusyRole/Animation.lua

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+local Animation = {}
+local ERoleState = import("EBusyRoleState")
+local ERoleMoveDirection = import("ERoleMoveDirection")
+local Reactive = require("Core.Reactive")
+
+
+local direction_mapping = {
+    [0] = ERoleMoveDirection.Move_Right,
+    [1] = ERoleMoveDirection.Move_Left,
+}
+
+
+local function GetAnimationIndex(direction, N)
+    -- 使用自定义 atan2 计算角度
+    local angle = math.atan(direction.Y, direction.X)
+    -- 转换为 [0, 2π) 范围
+    if angle < 0 then angle = angle + 2 * math.pi end
+
+    -- 调整角度：使 Y 轴负方向 (0,-1) 成为 0°（第一份的中心）
+    local adjusted_angle = (angle  + math.pi / N) % (2 * math.pi)
+    -- local adjusted_angle = (angle + math.pi / 2 + math.pi / N) % (2 * math.pi)
+
+    -- 计算每份的角度大小
+    local theta = 2 * math.pi / N
+    -- -- 计算所属区间的索引（1-based）
+    local index = math.floor(adjusted_angle / theta)
+    -- 处理边界情况（adjusted_angle = 2π 时归到第 1 份）
+    if index > N then index = 0 end
+    return index
+end
+
+function Animation:ReceiveLuaBeginPlay()
+    self.prev_direction = nil
+    self.watcher = Reactive.Watcher(function() self:UpdateMoveAnimation() end)
+end
+
+function Animation:UpdateMoveAnimation()
+    local owner = self:GetOwner()
+    local movement_proxy = owner.Movement.proxy
+
+    local index = 0
+
+    if owner.proxy.state == ERoleState.Picking then
+        return
+    end
+
+    if movement_proxy.isIdle then
+        if self.prev_direction ~= nil then
+            index = GetAnimationIndex(self.prev_direction, ERoleMoveDirection.Move_All_Cnt)
+        end
+        self:SetIdleAnimation(direction_mapping[index])
+    else
+        local direction = movement_proxy.direction
+        if direction.X ~= 0 and direction.Y ~= 0 then
+            index = GetAnimationIndex(direction, ERoleMoveDirection.Move_All_Cnt)
+        end
+        self:SetMoveAnimation(direction_mapping[index])
+        self.prev_direction = {X = direction.X, Y = direction.Y}
+    end
+end
+
+function Animation:GetMoveDirection()
+    local index = GetAnimationIndex(self.prev_direction, ERoleMoveDirection.Move_All_Cnt)
+    return direction_mapping[index]
+end
+
+
+return Class(nil, nil, Animation)