From b7728a38e404edaa30390821b078d34fc6c15ec9 Mon Sep 17 00:00:00 2001
From: kiritow <1362050620@qq.com>
Date: Mon, 8 May 2017 20:04:42 +0800
Subject: [PATCH] Add Tiled Map

---
 TiledMap.cpp |  70 +++++++++++++++++++++++++++++++
 TiledMap.h   |  32 +++++++++++++++
 main.cpp     | 113 +++++++++++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 212 insertions(+), 3 deletions(-)
 create mode 100644 TiledMap.cpp
 create mode 100644 TiledMap.h

diff --git a/TiledMap.cpp b/TiledMap.cpp
new file mode 100644
index 0000000..3b085d7
--- /dev/null
+++ b/TiledMap.cpp
@@ -0,0 +1,70 @@
+#include "TiledMap.h"
+
+TiledBox::TiledBox()
+{
+    tid=-1;
+}
+
+struct TiledMap::impl
+{
+    int l,c;
+    TiledBox** data;
+    int rectsize;
+
+    int vpline,vpcol;
+};
+
+TiledMap::TiledMap(int Line,int Col,int RectSize)
+{
+    sp.reset(new impl);
+    sp->l=Line;
+    sp->c=Col;
+    sp->rectsize=RectSize;
+    sp->vpline=0;
+    sp->vpcol=0;
+    sp->data=new TiledBox*[sp->l];
+    for(int i=0;i<sp->l;i++)
+    {
+        sp->data[i]=new TiledBox[sp->c];
+    }
+}
+
+int TiledMap::setBox(int LineID, int ColID, const TiledBox& box)
+{
+    if(LineID>0&&LineID<sp->l&&ColID>0&&ColID<sp->c)
+    {
+        sp->data[LineID][ColID]=box;
+        return 0;
+    }
+    return -1;
+}
+
+TiledBox* TiledMap::operator[] (int LineID)
+{
+    return sp->data[LineID];
+}
+
+int TiledMap::getRectSize()
+{
+    return sp->rectsize;
+}
+
+void TiledMap::setRectSize(int RectSize)
+{
+    if(RectSize<0) RectSize=0;
+    sp->rectsize=RectSize;
+}
+
+void TiledMap::setViewPoint(int Line, int Col)
+{
+    Line=std::min(std::max(Line,0),sp->l);
+    Col=std::min(std::max(Col,0),sp->c);
+    sp->vpline=Line;
+    sp->vpcol=Col;
+}
+
+void TiledMap::getViewPoint(int& refLine, int& refCol)
+{
+    refLine=sp->vpline;
+    refCol=sp->vpcol;
+}
diff --git a/TiledMap.h b/TiledMap.h
new file mode 100644
index 0000000..4e7dda0
--- /dev/null
+++ b/TiledMap.h
@@ -0,0 +1,32 @@
+#pragma once
+#include <memory>
+#include "MiniEngine/MiniEngine.h"
+
+typedef int TextureID;
+/** TextureID:
+>=0 Valid Texture
+-1 Empty
+-2 Colored
+*/
+
+struct TiledBox
+{
+    TiledBox();
+    TextureID tid;
+    MiniEngine::RGBA color;
+};
+
+class TiledMap
+{
+public:
+    TiledMap(int Line,int Col,int RectSize);
+    int setBox(int LineID,int ColID,const TiledBox& box);
+    TiledBox* operator[](int LineID);
+    void setRectSize(int RectSize);
+    int getRectSize();
+    void setViewPoint(int Line,int Col);
+    void getViewPoint(int& refLine,int& refCol);
+private:
+    struct impl;
+    std::shared_ptr<impl> sp;
+};
diff --git a/main.cpp b/main.cpp
index b4392ec..4b96882 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,9 +1,116 @@
-#include <iostream>
+#include "MiniEngine/MiniEngine.h"
+#include "MiniEngine/MiniEngine_Event.h"
+using namespace MiniEngine;
 
+#include "TiledMap.h"
+#include <cstdlib>
 using namespace std;
 
-int main()
+int AppMain()
 {
-    cout << "Hello world!" << endl;
+    Window wnd("TiledMap",1024,768);
+    Renderer rnd=wnd.getRenderer();
+
+    TiledMap tmap(20,15,20);
+    for(int i=0;i<20;i++)
+    {
+        for(int j=0;j<15;j++)
+        {
+            TiledBox box;
+            box.tid=-1-rand()%2;
+            if(box.tid==-2) box.color=RGBA(255,0,0,0);
+            tmap[i][j]=box;
+        }
+    }
+    tmap.setViewPoint(10,7);
+
+    Looper lp;
+    lp.updater=[&]()
+    {
+        Point center(1024/2,768/2);
+        int vl,vc;
+        tmap.getViewPoint(vl,vc);
+        int width=tmap.getRectSize();
+
+        rnd.clear();
+        for(int i=0;i<20;i++)
+        {
+            for(int j=0;j<15;j++)
+            {
+                Rect rc;
+                rc.x=center.x-(vc-j)*width-width/2;
+                rc.y=center.y-(vl-i)*width-width/2;
+                rc.w=rc.h=width;
+
+                SDL_Rect a=rc.toSDLRect();
+                SDL_Rect b=wnd.getSize().toSDLRect();
+                if(SDL_HasIntersection(&a,&b)==SDL_TRUE)
+                {
+                    switch(tmap[i][j].tid)
+                    {
+                    case -1:
+                        break;
+                    case -2:
+                        rnd.setColor(tmap[i][j].color);
+                        rnd.fillRect(rc);
+                        rnd.setColor(RGBA(0,0,0,0));
+                        break;
+                    }
+                }
+            }
+        }
+        rnd.update();
+    };
+    lp.add(SDL_QUIT,[&](){lp.stop();});
+    lp.add(SDL_KEYDOWN,[&](Event& e)
+    {
+        switch(e.key.keysym.sym)
+        {
+        case SDLK_KP_PLUS:
+            printf("Plus Pressed.\n");
+            tmap.setRectSize(tmap.getRectSize()+10);
+            lp.needupdate();
+            break;
+        case SDLK_KP_MINUS:
+            printf("Minus Presse.\n");
+            tmap.setRectSize(tmap.getRectSize()-10);
+            lp.needupdate();
+            break;
+        case SDLK_DOWN:
+            {
+                int vx,vy;
+                tmap.getViewPoint(vx,vy);
+                tmap.setViewPoint(vx+1,vy);
+                lp.needupdate();
+            }
+            break;
+        case SDLK_UP:
+            {
+                int vx,vy;
+                tmap.getViewPoint(vx,vy);
+                tmap.setViewPoint(vx-1,vy);
+                lp.needupdate();
+            }
+            break;
+        case SDLK_LEFT:
+            {
+                int vx,vy;
+                tmap.getViewPoint(vx,vy);
+                tmap.setViewPoint(vx,vy-1);
+                lp.needupdate();
+            }
+            break;
+        case SDLK_RIGHT:
+            {
+                int vx,vy;
+                tmap.getViewPoint(vx,vy);
+                tmap.setViewPoint(vx,vy+1);
+                lp.needupdate();
+            }
+            break;
+        }
+    });
+    lp.run();
+
     return 0;
 }