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NPC跟踪行为

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郑浩乐 2016-01-06 00:29:33 +08:00
parent 7e8d45f058
commit 2b3d86f979
2 changed files with 57 additions and 29 deletions
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49
game.js
View File

@ -29,7 +29,7 @@ function Game(id,options){
width:20, //宽
height:20, //高
type:0, //对象类型,0表示普通对象(不与地图绑定),1表示玩家控制对象,2表示程序控制对象
status:1, //对象状态,1表示正常,0表示隐藏
status:1, //对象状态,1表示正常,0表示隐藏,2表示暂停
orientation:0, //当前定位方向,0表示上,1表示右,2表示下,3表示左
vector:{}, //目标坐标
coord:{}, //如果对象与地图绑定,获得坐标值
@ -109,8 +109,8 @@ function Game(id,options){
Map.prototype.finder = function(param){
var defaults = {
map:this.data,
start:[0,0],
end:[0,0]
start:{},
end:{}
};
var options = (function(target, params) {
for (var prop in params) {
@ -119,40 +119,39 @@ function Game(id,options){
return target;
})(defaults,param);
var result = [];
if(options.map[options.start[0]][options.start[1]]||options.map[options.end[0]][options.end[1]]){ //当起点或终点设置在墙上
if(options.map[options.start.y][options.start.x]||options.map[options.end.y][options.end.x]){ //当起点或终点设置在墙上
return [];
}
var finded = false;
var length_x = options.map.length;
var steps = new Array(length_x); //步骤的映射
for(var x=length_x;x--;){
var length_y = options.map[x].length;
steps[x] = new Array(length_y);
for(var y=length_y;y--;){
steps[x][y] = 0;
var _self = this;
var y_length = options.map.length;
var x_length = options.map[0].length;
var steps = []; //步骤的映射
for(var y=y_length;y--;){
steps[y] = [];
for(var x=x_length;x--;){
steps[y][x] = 0;
}
}
var _render = function(list){
var new_list = [];
var next = function(from,to){
var x = to[0],y = to[1];
if(typeof steps[x]!= 'undefined'&&typeof steps[x][y] != 'undefined'&&!options.map[x][y]&&!finded){ //当前点是否可以走
if(x==options.end[0]&&y==options.end[1]){
steps[x][y] = from;
if(_self.get(to.x,to.y)==0&&!finded){ //当前点是否可以走
if(to.x==options.end.x&&to.y==options.end.y){
steps[to.y][to.x] = from;
finded = true;
}else if(!steps[x][y]){
steps[x][y] = from;
}else if(!steps[to.y][to.x]){
steps[to.y][to.x] = from;
new_list.push(to);
}
}
};
};
for(var i=0,len=list.length;i<len;i++){
var current = list[i];
var x = current[0],y=current[1];
next(current,[x+1,y]);
next(current,[x,y+1]);
next(current,[x-1,y]);
next(current,[x,y-1]);
next(current,{y:current.y+1,x:current.x});
next(current,{y:current.y,x:current.x+1});
next(current,{y:current.y-1,x:current.x});
next(current,{y:current.y,x:current.x-1});
}
if(!finded&&new_list.length){
_render(new_list);
@ -161,9 +160,9 @@ function Game(id,options){
_render([options.start]);
if(finded){
var current=options.end;
while(current[0]!=options.start[0]||current[1]!=options.start[1]){
while(current.x!=options.start.x||current.y!=options.start.y){
result.unshift(current);
current=steps[current[0]][current[1]];
current=steps[current.y][current.x];
}
}
return result;

37
index.js
View File

@ -348,10 +348,39 @@
type:2,
speed:10,
update:function(){
this.path = map.finder({
start:[this.coord.y,this.coord.x],
end:[player.coord.y,player.coord.x]
});
if(!this.coord.offset){
this.path = map.finder({
start:this.coord,
end:player.coord
});
if(this.path.length){
this.vector = this.path[0];
}
if(this.vector.x>this.coord.x){
this.orientation = 1;
}else if(this.vector.x<this.coord.x){
this.orientation = 3;
}else if(this.vector.y>this.coord.y){
this.orientation = 2;
}else if(this.vector.y<this.coord.y){
this.orientation = 0;
}
}
var steps = 1;
switch(this.orientation){
case 0:
this.y-=steps;
break;
case 1:
this.x+=steps;
break;
case 2:
this.y+=steps;
break;
case 3:
this.x-=steps;
break;
}
},
draw:function(context){
context.fillStyle = '#F00';