class myTileTex
{
     public:
     bool mirror=false;
     SDL_Rect rect;
     SDL_Texture * tex;
     myTileTex()
     {
         tex=nullptr;
     };
     void load( char* filename )
     {
     tex = IMG_LoadTexture(renderer, filename);
     SDL_QueryTexture(tex, NULL, NULL, &rect.w, &rect.h);
     }
     ~myTileTex()
     {
           if (tex) {
                 SDL_DestroyTexture(tex);
                 tex= nullptr;
               }
     }
};

myTileTex *tileTex[ 255 ];
tileTex[0] = new myTileTex();

myTileTex *tileTex = new myTileTex[255];

layer1->SetTilePos(a,b,c);

class layer
{
int r=255,g=255,b=255;
public:
float far;
int tilenum;
SDL_Rect position[255];
int indextile[255];
layer()
{
tilenum=0;
}

void RGB(int R,int G,int <img src="http://s12.ucoz.net/sm/1/cool.gif" border="0" align="absmiddle" alt="cool" />
{
     r=R;g=G;b=B;
}
void mirror()
{
   tileTex[tilenum].mirror=true;
}

   void SetTilePos(int i,int x,int y)
     {

   position[tilenum].x = x*32; // установка позиции тайлов
   position[tilenum].y = y*32;

   indextile[tilenum]= i;
   tilenum++;
     }

void display(){

for(int i=0;i<tilenum; i++)
{

SDL_Rect DestRb1;
DestRb1.x = position[i].x-cum.x/far;
DestRb1.y = position[i].y-cum.y;

DestRb1.w =(tileTex[indextile[i]].rect.w);
DestRb1.h =(tileTex[indextile[i]].rect.h);
if(DestRb1.x>0-DestRb1.w&&DestRb1.x<800){

int r1,g1,b1;

if(r>=256||g>=256||b>=256)
     {
          if(r>=256)int r1=r-255;
           else r1=0;
      if(g>=256)int g1=g-255;
       else g1=0;
      if(b>=256)int b1=b-255;
       else b1=0;

SDL_SetTextureColorMod(tileTex[indextile[i]].tex,r1,g1,b1);
     }
     else
     SDL_SetTextureColorMod(tileTex[indextile[i]].tex,0,0,0);

SDL_SetTextureBlendMode(tileTex[indextile[i]].tex,SDL_BLENDMODE_BLEND );

if(tileTex[i].mirror)
{
SDL_RendererFlip flip = SDL_FLIP_HORIZONTAL;
SDL_RenderCopyEx(renderer, tileTex[indextile[i]].tex ,  NULL, &DestRb1, NULL, NULL, flip);
}else
SDL_RenderCopy(renderer, tileTex[indextile[i]].tex ,  NULL, &DestRb1);//маска

if(r>=256||g>=256||b>=256)
     {
  if(r>=256) r1=255;
  else r1=r;
if(g>=256) g1=255;
else g1=g;
if(b>=256) b1=255;
else b1=b;
         SDL_SetTextureColorMod(tileTex[indextile[i]].tex,r1,g1,b1);
    }
else SDL_SetTextureColorMod(tileTex[indextile[i]].tex,r,g,b);

SDL_SetTextureBlendMode(tileTex[indextile[i]].tex,SDL_BLENDMODE_ADD );

if(tileTex[i].mirror)
{
SDL_RendererFlip flip = SDL_FLIP_HORIZONTAL;
SDL_RenderCopyEx(renderer, tileTex[indextile[i]].tex ,  NULL, &DestRb1, NULL, NULL, flip);
}else
SDL_RenderCopy(renderer, tileTex[indextile[i]].tex,  NULL, &DestRb1);

}
}
}
~layer()
     {

         delete[] tileTex;

     }
};

layer *layer1= new layer;
layer *layer2= new layer;

class myTileTex
{
     public:
     bool mirror=false;
     SDL_Rect rect;
     SDL_Texture * tex;
     myTileTex()
     {
         tex=nullptr;
     };
     void load( char* filename )
     {
     tex = IMG_LoadTexture(renderer, filename);
     SDL_QueryTexture(tex, NULL, NULL, &rect.w, &rect.h);
     }
     ~myTileTex()
     {
           if (tex) {
                 SDL_DestroyTexture(tex);
                 tex= nullptr;
               }
     }
};

myTileTex *tileTex = new myTileTex[255];

delete [] layer1;
delete [] layer2;

{
auto endpointx=pers->x+250, endpointy=pers->y-100;
auto vx = endpointx - x;
auto vy = endpointy - y;
auto len = sqrt(vx*vx + vy*vy);
     if(len!=0){
     vx = vx/len;
     vy = vy/len;

     auto dx = vx * 20;
     auto dy = vy * 20;
}
else {dx=0; dy=0;}

int endpointx=pers->x+250, endpointy=pers->y-100;
dx=(endpointx-x)/5;
dy=(endpointy-y)/5;
if(x>=endpointx-2&&x<=endpointx+2)trigger=RETURN;

if(trigger==RETURN)
        {
int endpointx=pers->x, endpointy=pers->y;
dx=(endpointx-x)/5;
dy=(endpointy-y)/5;

if(x>=endpointx-10&&x<=endpointx+10)trigger=IDLE;
        }

  {в рабочем цикле}   
          угол=-math.ArcTan2(x-цельX,y-цельY)/pi*180;  // по углу легко поворачивать спрайт   
          x=x+sin(угол*pi/180)*скорость;   
          y=y-cos(угол*pi/180)*скорость;