帝国时代3如何修改能打开与关闭城门？

这个是城门开门与锁门的教程，像帝国时代2那样，城门可以根据玩家需要开门或锁门，只可惜敌人不能穿过打开的城门。

方法：

1.在protounitcommands.xml将开城门按钮的语句复制，顺便把那个图标提取出来

2.随便找一个游戏内没有出现过的按钮，然后修改。（怎样判断游戏内没有这个按钮？去protoy.xml搜索按钮调用名，搜索不出就是游戏内没有的。）


	
	将截图所说的语句替换到你修改的按钮，我随便找了一个没有用上Stance1按钮修改前：

	<protounitcommand>
		<name>Stance1</name>
		<icon>art\ui\command\stance_aggresive_on</icon>
		<command>unitSetStanceAggressive</command>
		<rollovertextid>19143</rollovertextid>
		<helptopic>stances</helptopic>
	</protounitcommand>
	
	
修改后：

	<protounitcommand>
		<name>Stance1</name>
		<icon>art\ui\command\close</icon>
		<command>uiTransformSelectedUnit("CWallGate2")</command>
		<rollovertextid>00301</rollovertextid>
	</protounitcommand>

3. 复制一个城门，注意一下调用名，你的命令写什么调用名，这个城门的调用名就应该写什么。你在复制城门之前，应该先给城门添加你刚才修改的按钮,顺便把城门的建造成本删掉。


	（原有的）城门

	<Unit id ='482' name ='CWallGate'>
		<DBID>523</DBID>
		<DisplayNameID>29634</DisplayNameID>
		<ObstructionRadiusX>5.0000</ObstructionRadiusX>
		<ObstructionRadiusZ>1.0000</ObstructionRadiusZ>
		<MaxVelocity>0.0000</MaxVelocity>
		<MovementType>land</MovementType>
		<AnimFile>buildings\wall\wall_gate.xml</AnimFile>
		<AllowedHeightVariance>4.0000</AllowedHeightVariance>
		<ImpactType>Stone</ImpactType>
		<Icon>buildings\wall\wall_portrait</Icon>
		<PortraitIcon>buildings\wall\gate_portrait</PortraitIcon>
		<RolloverTextID>29633</RolloverTextID>
		<ShortRolloverTextID>29632</ShortRolloverTextID>
		<InitialHitpoints>3000.0000</InitialHitpoints>
		<MaxHitpoints>3000.0000</MaxHitpoints>
		<LOS>7.0000</LOS>
		<BuildPoints>15.0000</BuildPoints>
		<Cost resourcetype ='Wood'>0.0000</Cost>			<!-- 建造成本改成0或删掉 -->
		<BuildingWorkRate>1.0000</BuildingWorkRate>
		<AllowedAge>0</AllowedAge>
		<Decay delay ='0.0000' duration ='0.0000'></Decay>
		<Armor type ='Siege' value ='0.0000'></Armor>
		<UnitType>LogicalTypeValidSabotage</UnitType>
		<UnitType>LogicalTypeVillagersAttack</UnitType>
		<UnitType>LogicalTypeHandUnitsAttack</UnitType>
		<UnitType>LogicalTypeShipsAndBuildings</UnitType>
		<UnitType>LogicalTypeRangedUnitsAttack</UnitType>
		<UnitType>LogicalTypeMinimapFilterMilitary</UnitType>
		<UnitType>BuildingClass</UnitType>
		<UnitType>ColonyBuilding</UnitType>
		<UnitType>AbstractWall</UnitType>
		<UnitType>MilitaryBuilding</UnitType>
		<UnitType>Building</UnitType>
		<UnitType>CountsTowardMilitaryScore</UnitType>
		<UnitType>HasBountyValue</UnitType>
		<Flag>CollidesWithProjectiles</Flag>
		<Flag>Doppled</Flag>
		<Flag>Immoveable</Flag>
		<Flag>NoBloodOnDeath</Flag>
		<Flag>NonAutoFormedUnit</Flag>
		<Flag>ObscuresUnits</Flag>
		<Flag>PlayerOwnsObstruction</Flag>
		<Flag>SelectWithObstruction</Flag>
		<Flag>UseAlignedObstructionOnMinimap</Flag>
		<Flag>wallBuild</Flag>
		<Flag>ColonyBuilding</Flag>
		<Flag>Tracked</Flag>
		<Command page ='10' column ='1'>Delete</Command>
		<Command page ='6' column ='1'>Stance1</Command>		<!-- 把按钮加上去 -->
	</Unit>
	
（新增的）已关闭的城门

	<Unit id ='1482' name ='CWallGate2'>
		<DBID>523</DBID>
		<DisplayNameID>00300</DisplayNameID>
		<ObstructionRadiusX>5.0000</ObstructionRadiusX>
		<ObstructionRadiusZ>1.0000</ObstructionRadiusZ>
		<MaxVelocity>0.0000</MaxVelocity>
		<MovementType>land</MovementType>
		<AnimFile>buildings\wall\wall_gate.xml</AnimFile>
		<AllowedHeightVariance>0.0000</AllowedHeightVariance>	<!--	4.0修改成0.0	-->
		<ImpactType>Stone</ImpactType>
		<Icon>buildings\wall\wall_portrait</Icon>
		<PortraitIcon>buildings\wall\gate_portrait</PortraitIcon>
		<RolloverTextID>29633</RolloverTextID>
		<ShortRolloverTextID>29632</ShortRolloverTextID>
		<InitialHitpoints>3000.0000</InitialHitpoints>
		<MaxHitpoints>3000.0000</MaxHitpoints>
		<LOS>7.0000</LOS>
		<BuildPoints>15.0000</BuildPoints>
		<Cost resourcetype ='Wood'>0.0000</Cost>			<!-- 建造成本改成0或删掉-->
		<BuildingWorkRate>1.0000</BuildingWorkRate>
		<AllowedAge>0</AllowedAge>
		<Decay delay ='0.0000' duration ='0.0000'></Decay>
		<Armor type ='Siege' value ='0.0000'></Armor>
		<UnitType>LogicalTypeValidSabotage</UnitType>
		<UnitType>LogicalTypeVillagersAttack</UnitType>
		<UnitType>LogicalTypeHandUnitsAttack</UnitType>
		<UnitType>LogicalTypeShipsAndBuildings</UnitType>
		<UnitType>LogicalTypeRangedUnitsAttack</UnitType>
		<UnitType>LogicalTypeMinimapFilterMilitary</UnitType>
		<UnitType>BuildingClass</UnitType>
		<UnitType>ColonyBuilding</UnitType>
		<UnitType>AbstractWall</UnitType>
		<UnitType>MilitaryBuilding</UnitType>
		<UnitType>Building</UnitType>
		<UnitType>CountsTowardMilitaryScore</UnitType>
		<UnitType>HasBountyValue</UnitType>
		<Flag>CollidesWithProjectiles</Flag>
		<Flag>Doppled</Flag>
		<Flag>Immoveable</Flag>
		<Flag>NoBloodOnDeath</Flag>
		<Flag>NonAutoFormedUnit</Flag>
		<Flag>ObscuresUnits</Flag>
		<Flag>ShowTactics</Flag>						<!-- 添加<Flag>ShowTactics</Flag> -->
	<!--	<Flag>PlayerOwnsObstruction</Flag>		-->		<!-- 删掉<Flag>PlayerOwnsObstruction</Flag> -->
		<Flag>SelectWithObstruction</Flag>
		<Flag>UseAlignedObstructionOnMinimap</Flag>
		<Flag>wallBuild</Flag>
		<Flag>ColonyBuilding</Flag>
		<Flag>Tracked</Flag>
		<Command page ='10' column ='1'>Delete</Command>
		<Command page ='6' column ='1'>Transform</Command>		<!-- 将开城门的按钮加上去 -->
	</Unit>
	

	把名称与按钮的介绍写上：
		<String _locID="00300">已关闭的城门</String>
		<String _locID="00301">关闭这座城门，任何人均不能通过这座城门。</String>
	

	4.添加声音，最简单的办法是在Sound文件夹的SoundXML.bar提取原有的城门的文件（CWallGate_snds），然后直接把调用名修改了，放到sound文件夹。
	CWallGate2_snds.xml
<?xml version="1.0" encoding="utf-8"?>

<protounitsounddef>
	<protounit name="CWallGate2">
		<soundtype name="Select">
			<soundset name="UI_Building_Economic"/>
		</soundtype>
		<soundtype name="Death">
			<soundset name="BuildingDestruction"/>
		</soundtype>
		<soundtype name="Creation">
			<soundset name="UI_Building_Economic"/>
		</soundtype>
	</protounit>
</protounitsounddef>

完成了，进入游戏看看吧，效果图跟顶部两张截图一样。

有人可能会说，为什么不多改一个按钮，然后制作一个新城门，这样就不需要使用建造城门那个按钮了，其实我也想这样做，但是城门的动画直接写到主程序里面去了，开门动画只认城门的调用名，导致新添加的城门有单位经过时，不会自动上升。为了平衡性，适当把所有城墙的价格与生命值调高吧，将墙柱、2号城墙、5号城墙成本改成20木头，生命值改成4000，城门与已关闭的城门生命值也改成4000。