cc.Graphics组件
1: Alpha 混合的算法;
2: LineWidth 线的宽度;
3: Line Join 接头的方式: BEVEL, MITER, ROUND
4: Line Cap 模式: BUIT, Round, SQUARE
5: Stoker Color: 线的颜色
6: Fill Color: 填充颜色
7: Miter Limit: 10;
Graphics命令
// 需要先给节点绑定cc.Graphics组件
var graphics = this.getComponent(cc.Graphics);
// 布径, moveTo
graphics.moveTo(-50, 50);
graphics.lineTo(-50, -50);
graphics.lineTo(50, -50);
graphics.lineTo(50, 50);
graphics.close(); // 组成一个封闭的路径
// end
// 画线,填充;
graphics.stroke();
graphics.fill();
// graphics.clear();
摄像机cc.Camera
1: 所有的物体都是由摄像机绘制出来的;
2:culling Mask: 这个摄像机拍摄的物体的类型;
3:depth:根据摄像机的depth来决定哪个摄像机先绘制,哪个后绘制;
值越小越先绘制
4: clearFlags: 摄像机清屏设置;
坐标转换
1: 当摄像机移动后,鼠标点击的位置,是摄像机下的坐标;
2: 摄像机坐标转世界坐标:
camera.getCameraToWorldPoint(point, out);
3: 世界坐标转摄像机坐标:
camera.getWorldToCameraPoint(point, out);
足球移动demo
//follow_target.js 摄像机跟随
cc.Class({
extends: cc.Component,
properties: {
// foo: {
// // ATTRIBUTES:
// default: null, // The default value will be used only when the component attaching
// // to a node for the first time
// type: cc.SpriteFrame, // optional, default is typeof default
// serializable: true, // optional, default is true
// },
// bar: {
// get () {
// return this._bar;
// },
// set (value) {
// this._bar = value;
// }
// },
target: {
type: cc.Node,
default: null,
},
},
// LIFE-CYCLE CALLBACKS:
// onLoad () {},
start() {
},
update(dt) {
if (this.target === null) {
return;
}
var w_pos = this.target.convertToWorldSpaceAR(cc.v2(0, 0)); // cc.v2 ---> cc.p
var pos = this.node.parent.convertToNodeSpaceAR(w_pos);
this.node.x = pos.x;
this.node.y = pos.y;
},
});
// game_ctrl.js 捕捉touchevent
var nav_agent = require("nav_agent");
cc.Class({
extends: cc.Component,
properties: {
// foo: {
// // ATTRIBUTES:
// default: null, // The default value will be used only when the component attaching
// // to a node for the first time
// type: cc.SpriteFrame, // optional, default is typeof default
// serializable: true, // optional, default is true
// },
// bar: {
// get () {
// return this._bar;
// },
// set (value) {
// this._bar = value;
// }
// },
camera: {
type: cc.Camera,
default: null,
},
player: {
type: nav_agent,
default: null,
},
map: {
type: cc.Node,
default: null,
},
},
// LIFE-CYCLE CALLBACKS:
// onLoad () {},
start() {
this.node.on(cc.Node.EventType.TOUCH_START, function(e) {
var camrea_pos = e.getLocation(); // 除非camrea (0, 0) 否者你要转换一下啊;
var w_pos = this.camera.getCameraToWorldPoint(camrea_pos);
var pos = this.map.convertToNodeSpaceAR(w_pos);
this.player.walk_to_map(pos);
}.bind(this), this);
},
// update (dt) {},
});
// nav_agent.js角色位移代码
cc.Class({
extends: cc.Component,
properties: {
// foo: {
// // ATTRIBUTES:
// default: null, // The default value will be used only when the component attaching
// // to a node for the first time
// type: cc.SpriteFrame, // optional, default is typeof default
// serializable: true, // optional, default is true
// },
// bar: {
// get () {
// return this._bar;
// },
// set (value) {
// this._bar = value;
// }
// },
speed: 100,
},
// LIFE-CYCLE CALLBACKS:
// onLoad () {},
start() {
this.is_waling = false;
},
walk_to_map(dst) {
var src = this.node.getPosition();
var dir = dst.sub(src); // cc.pSub dst.sub; cc.pSub(dst, src);
var len = dir.mag(); // cc.pLength;
if (len <= 0) {
return;
}
this.walk_time = len / this.speed;
this.now_time = 0;
this.vx = this.speed * (dir.x / len);
this.vy = this.speed * (dir.y / len);
this.is_waling = true;
},
update(dt) {
if (this.is_waling === false) {
return;
}
this.now_time += dt;
if (this.now_time > this.walk_time) {
dt -= (this.now_time - this.walk_time);
}
var sx = this.vx * dt;
var sy = this.vy * dt;
this.node.x += sx;
this.node.y += sy;
if (this.now_time >= this.walk_time) {
this.is_waling = false;
}
},
作者:orxx
来源:博客园
声明:发布此文是出于传递更多知识以供交流学习之目的。若有来源标注错误或侵犯了您的合法权益,请作者持权属证明与我们联系,我们将及时更正、删除,谢谢
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