Ruby如何写RPG游戏脚本 rpg游戏脚本怎么写

四，利用游戏脚本实现地图的切换

为了让大家看到游戏脚本的便利性，现在利用脚本实现游戏中的场景切换。

将json脚本修改如下

varscript = {
stage01:{
map:[
[18,18,18,18,18,18,18,18,18,18,18,18,55,55,18,18,18],
[18,18,18,17,17,17,17,17,17,17,17,17,55,55,17,17,18],
[18,18,17,17,17,17,18,18,17,17,17,17,55,55,17,17,18],
[18,17,17,17,18,18,18,18,18,17,17,55,55,17,17,17,18],
[18,17,17,18,22,23,23,23,24,18,17,55,55,17,17,17,18],
[18,17,17,18,25,28,26,79,27,18,55,55,17,17,17,17,18],
[18,17,17,17,17,10,11,12,18,18,55,55,17,17,17,17,18],
[18,18,17,17,10,16,16,16,11,55,55,17,17,17,17,17,18],
[18,18,17,17,77,16,16,16,16,21,21,17,17,17,17,17,18],
[18,18,17,17,77,16,16,16,16,55,55,17,17,17,17,17,18],
[18,18,18,18,18,18,18,18,18,55,55,18,18,18,18,18,18]],
mapdata:[
[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],
[1,1,1,0,0,0,0,0,0,0,0,0,1,1,0,0,1],
[1,1,0,0,0,0,1,1,0,0,0,0,1,1,0,0,1],
[1,0,0,0,1,1,1,1,1,0,0,1,1,0,0,0,1],
[1,0,0,1,1,1,1,1,1,1,0,1,1,0,0,0,1],
[1,0,0,1,1,1,0,1,1,1,1,1,0,0,0,0,1],
[1,0,0,0,0,0,0,0,1,1,1,1,0,0,0,0,1],
[1,1,0,0,0,0,0,0,0,1,1,0,0,0,0,0,1],
[1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1],
[1,1,0,0,0,0,0,0,0,1,1,0,0,0,0,0,1],
[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1]],
add:[
{chara:"player",img:"mingren",x:5,y:6},
{chara:"npc",img:"npc1",x:7,y:6},
{chara:"npc",img:"npc1",x:3,y:3}],
talk:{
talk1:[
{img:"m",name:"鸣人",msg:"我是木叶村的鸣人，你是谁？"},
{img:"n",name:"黑衣忍者甲",msg:"你就是鸣人？九尾还在你身体里吗？"}
],
talk2:[
{img:"n",name:"黑衣忍者乙",msg:"鸣人，听说忍者大战就要开始了。"},
{img:"m",name:"鸣人",msg:"真的吗？一定要想想办法啊。"}
]
},
jump:[
{at:{x:6,y:5},to:"stage02"}
]
},
stage02:{
map:[
[0,0,1,2,2,2,2,2,2,2,2,1,0,0,0],
[0,0,1,3,5,5,1,5,5,5,5,1,0,0,0],
[0,0,1,80,4,4,1,80,4,4,4,1,0,0,0],
[0,0,1,80,4,4,1,80,8,7,8,1,0,0,0],
[0,0,1,80,4,4,5,81,4,4,4,1,0,0,0],
[0,0,1,2,2,2,6,4,4,4,4,1,0,0,0],
[0,0,1,3,5,5,81,4,4,4,4,1,0,0,0],
[0,0,1,80,4,4,4,4,4,4,9,1,0,0,0],
[0,0,1,2,2,2,2,6,2,2,2,1,0,0,0]],
mapdata:[
[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1],
[1,1,1,0,0,0,1,0,0,0,0,1,1,1,1],
[1,1,1,0,0,0,1,0,0,0,0,1,1,1,1],
[1,1,1,0,0,0,1,0,0,1,0,1,1,1,1],
[1,1,1,0,0,0,0,0,0,0,0,1,1,1,1],
[1,1,1,1,1,1,0,0,0,0,0,1,1,1,1],
[1,1,1,0,0,0,0,0,0,0,0,1,1,1,1],
[1,1,1,0,0,0,0,0,0,0,1,1,1,1,1],
[1,1,1,1,1,1,1,0,1,1,1,1,1,1,1]],
add:[
{chara:"player",img:"mingren",x:7,y:8},
{chara:"npc",img:"npc1",x:8,y:3},
{chara:"npc",img:"npc1",x:10,y:3}],
talk:{
talk1:[
{img:"m",name:"鸣人",msg:"你们在干什么啊？"},
{img:"n",name:"黑衣忍者甲",msg:"我们在喝茶。"}
],
talk2:[
{img:"n",name:"黑衣忍者乙",msg:"我们在喝茶，你不要打扰我们。"},
{img:"m",name:"鸣人",msg:"....."}
]
},
jump:[
{at:{x:7,y:8},to:"stage01"}
]
}
};

可以看到，我添加了stage02，即第二个场景，并且在脚本里引入了jump节点来控制游戏场景的切换，其中jump中的at表示游戏主人公移动到达的坐标，to表示到达这个坐标后跳转到的画面名称。这里的jump之所以是数组，是因为一个场景也可以跳转到其他多个场景。

上面的脚本实现了stage01和stage02两个场景的互相跳转。

为了读取这个jump，以及实现跳转，我们需要在游戏主人公移动一个步长之后，判断一下是否应该跳转了，修改Character类的onmove方法

/**
* 开始移动
**/
Character.prototype.onmove =function(){
varself =this;
//设定一个移动步长中的移动次数
varml_cnt = 4;
//计算一次移动的长度
varml = STEP/ml_cnt;
//根据移动方向，开始移动
switch(self.direction){
caseUP:
if(mapmove){
mapLayer.y += ml;
charaLayer.y += ml;
}
self.y -= ml;
break;
caseLEFT:
if(mapmove){
mapLayer.x += ml;
charaLayer.x += ml;
}
self.x -= ml;
break;
caseRIGHT:
if(mapmove){
mapLayer.x -= ml;
charaLayer.x -= ml;
}
self.x += ml;
break;
caseDOWN:
if(mapmove){
mapLayer.y -= ml;
charaLayer.y -= ml;
}
self.y += ml;
break;
}
self.moveIndex++;
//当移动次数等于设定的次数，开始判断是否继续移动
if(self.moveIndex >= ml_cnt){
//一个地图步长移动完成后，判断地图是否跳转
if(self.isHero && self.moveIndex > 0)checkJump();
self.moveIndex = 0;
//一个地图步长移动完成后，如果地图处于滚动状态，则移除多余地图块
if(mapmove)delMap();
//如果已经松开移动键，或者前方为障碍物，则停止移动，否则继续移动
if(!isKeyDown || !self.checkRoad()){
self.move =false;
return;
}elseif(self.direction != self.direction_next){
self.direction = self.direction_next;
self.anime.setAction(self.direction);
}
//地图是否滚动
self.checkMap(self.direction);
}
};
我添加了一行
if(self.isHero && self.moveIndex > 0)checkJump();
表示，移动完后如果该人物是游戏主人公则进行跳转判断
所以，我们需要添加一个checkJump方法
//游戏场景跳转测试
function checkJump(){
varjump=stage.jump;
var jumpstage;
for(vari=0;i
jumpjumpstage= jump[0];
if(player.x== jumpstage.at.x * 32 &&player.y== jumpstage.at.y * 32){
//获取该场景脚本数据
stage=script[jumpstage.to];
//开始跳转
initScript(stage);
return;
}
}
}

好了，一切都很简单吧，运行游戏看看效果吧,小鸣人走到地图的小房门的部分是，场景发生跳转