基类是设计模式中的模板方法模式，主要存放了一些通用的代码。
当时使用了U2D和U3D把2D UI和3D UI给区分开了，基类里面存放的主要的是本地矩阵和世界矩阵，角度、锚点、缩放、z顺序等。
Node.h
#pragma once namespace U2D { class CNode; class CUI; class Cobject; class CAnimate; class CAnimateEx; class CAnimation; enum MovementEvent; typedef void (CNode::*event_selector)(CUI*); typedef void (CNode::*collider_selector)(int, Cobject*, int);//前面的int是自己的第几个碰撞区,中间的是对方的指针,后面的int是对方的第几个碰撞区 typedef void (CNode::*animate_selector)(CAnimate*, MovementEvent); typedef void (CNode::*animation_selector)(CAnimation*, MovementEvent, char *); typedef void (CNode::*animateEx_selector)(CAnimateEx*, MovementEvent, int);//后面的int应该是索引在第几张图片 class CNode { friend class CScene; protected: CNode *parent; //父节点 public: Matrix3 local_matrix; //自身矩阵 Matrix3 world_matrix; //世界矩阵 sColor local_color; //自身颜色 sColor world_color; //世界颜色 Vector2 pos; //坐标偏移 Vector2 scale; //缩放 Vector2 anchor; //锚点 float angle; //角度 bool visible; //是否可见 bool flip; //是否翻转 int zOrder = 0; bool auto_sort = false; //set void setParent(CNode *parent) { this->parent = parent; } void setVisible(bool visible) { this->visible = visible; } void setAlpha(BYTE alpha) { local_color.a = (float)alpha / 255; } void setPosition(float x, float y) { this->pos.x = x; this->pos.y = y; } void setPosition(Vector2 p) { this->pos = p; } void setX(float x) { pos.x = x; } void setY(float y) { pos.y = y; } void setScale(float sx, float sy) { this->scale.x = sx; this->scale.y = sy; } void setFilp(bool flip) { this->flip = flip; } void setColor(BYTE r, BYTE g, BYTE b) { local_color.r = (float)r / 255; local_color.g = (float)g / 255; local_color.b = (float)b / 255; } void setAnchor(float ox, float oy) { this->anchor.x = ox; this->anchor.y = oy; } void setAngle(float angle) { this->angle = angle; } //get int getZorder() { return zOrder; } CNode*getPraent() { return parent; } sColor &getWorldColor() { return world_color; } Matrix3 &getWorldMatrix() { return world_matrix; } sColor &getlocalColor() { return local_color; } Matrix3 &getlocalMatrix() { return local_matrix; } float getScaleX() { return scale.x; }//水平翻转比值 float getScaleY() { return scale.y; }//垂直翻转比值 BYTE getAlpha() { return local_color.a * 255; } Vector2 getPosition() { return pos; } float getAngle() { return angle; } //bool bool isVisible() { return visible; } bool isFlip() { return flip; } void setZorder(int z) { this->zOrder = z; this->auto_sort = false; } CNode(); virtual ~CNode() {}; }; class CElement :public CNode { public: virtual void draw() {}; virtual RECT getBoundBox() = 0; virtual ~CElement() {}; }; //碰撞aabb struct COLLIDER//这个是对象和对象的碰撞 { #define MaxHitArea 5 //最多只有5个碰撞点 CAnimateEx *animEx; //动画加强版的指针 struct { int hitIndex;//碰撞的索引 RECT hitRect;//碰撞的范围 }lastAabb[MaxHitArea], nowAabb[MaxHitArea]; //碰撞点的数组，最多只有5个，不然效率低了 int lastAabbNum; //上一个碰撞的编号 int nowAabbNum; //现在的碰撞编号 struct { int hitIndex; bool lastIn; bool nowIn; }hitQueue[MaxHitArea]; int hitQueueNum; collider_selector listener_enter; //碰撞监听[进入] collider_selector listener_exit;//碰撞监听[离开] COLLIDER(CAnimateEx *animEx, collider_selector fun_enter, collider_selector fun_exit); void GenerateHitQueue(); static bool Intersects(RECT &a, RECT &b) { if (a.left<b.right && a.right>b.left && a.top<b.bottom && a.bottom>b.top) { return true; } return false; } }; }
Node.cpp
#include "Engine.h" namespace U2D { CNode::CNode() { scale = Vector2(1.0, 1.0); anchor = Vector2(0.5, 0.5); pos = Vector2(0, 0); visible = true; flip = false; angle = 0; if (CPlateForm::getInstance()->getAutoSort() == true) auto_sort = true; else auto_sort = false; } COLLIDER::COLLIDER(CAnimateEx *animEx, collider_selector fun_enter, collider_selector fun_exit) { this->animEx = animEx; listener_enter = fun_enter; listener_exit = fun_exit; lastAabbNum = 0; nowAabbNum = 0; hitQueueNum = 0; } void COLLIDER::GenerateHitQueue() { if (lastAabbNum > nowAabbNum) { hitQueueNum = lastAabbNum; for (int i = 0; i < hitQueueNum; i++) { hitQueue[i].hitIndex = lastAabb[i].hitIndex; hitQueue[i].lastIn = true; if (i < nowAabbNum) hitQueue[i].nowIn = true; else hitQueue[i].nowIn = false; } } else { hitQueueNum = nowAabbNum; for (int i = 0; i < hitQueueNum; i++) { hitQueue[i].hitIndex = nowAabb[i].hitIndex; hitQueue[i].nowIn = true; if (i < lastAabbNum) hitQueue[i].lastIn = true; else hitQueue[i].lastIn = false; } } } }
