Code:

float basevectorX = 0.0f

float basevectorY = 0.0f

//floating-point coordinate upper-left corner coordinate

float FfrogX = 0.0f

float f logic = 0.0f；

//Upper left corner coordinates of plastic coordinates

int frogX = 0；

int frogY = 0；

Rect Rect = new Rect()；

ffr ogx = ffr ogx+base vectorx；

frogX =(int)ff rogx；

f logic = f logic+base vectory；

frogY =(int)f frogY；

rect.left = frogX

rect . right = screen Width-rect . left-Width； //640

rect.top = frogY//480

rect . bottom = screen Height-rect . top-Height； //480

((MarginLayoutParams)frog view . getlayoutparams())。 setMargins(rect.left，rect.top，rect.right，rect . bottom)；

//This can be zoomed in and out and moved.

centex = rect . left+Width/2； //The x coordinate of the center point is used for judgment and 2d.

CenterY = rect . top+Height/2； //Use the Y coordinate of the center point for judgment. It is used in 2d.