Help! How can i fix that?

[MuubNito]

The bug is the wall jumping and going inside of an wall

Code : `t=0

p={}
p.x=60
p.y=60
p.vx=0
p.vy=1

cam={}
cam.x=0
cam.y=0

jump=0
fall=0

function TIC()
cls(08)

till=mget((p.x-1)//8,p.y//8)
tilr=mget((p.x//8)+2,p.y//8)
tild=mget((p.x//8),(p.y//8)+2)
tilrd=mget((p.x+15)//8,(p.y//8)+2)

map(cam.x,cam.y,30,17,0,0,0)

spr(256,p.x,p.y)
spr(256,p.x+8,p.y)
spr(257,p.x,p.y+8)
spr(257,p.x+8,p.y+8,1,1,1)

-- Movement and Collisions :

if btn(2) then
if p.vx > -1 then
p.vx=p.vx-0.14
end
end

if btn(3) then
if p.vx < 1 then
p.vx=p.vx+0.14
end
end

if p.vx>0 and tilr==0 or p.vx<0 and till==0 then
p.x=p.x+p.vx
end

if till==0 and tilr==0 then
p.vx=p.vx/1.14
else
p.vx=0
end

if tild == 0 and tilrd==0 and jump == 0 then
if p.vy<1.625 and t%2==0 then
p.vy=p.vy+0.125
end
p.y=p.y+p.vy
fall=1
elseif jump==0 then
p.vy=1
fall=0
else
fall=0
end

if fall==0 and btn(4) then
 if jump==0 then
	 p.vy=-2.75
	end
 jump=1
end

if jump==1 then
 p.y=p.y+p.vy
	p.vy=p.vy+0.125
	if p.vy==0.125 then
	 p.vy=0
	 jump=0
	end
end

t=t+1

end
`