Short Intro Challenge - RotoZoom !

[Rbz]

My second entry into this challenge, since external images are allowed, here's a rotozoom effect in 20 lines  Â

Compile with BlitzPlus *only*

Download executable ~ 345kb

Code: [Select]

Graphics 320,240,32,2

image = LoadImage("Gravity.png")
Dim sinTable#(360),cosTable#(360)

For loop# = 0 To 359
sinTable(loop) = (Sin(loop)*1.5)*(Sin(loop)*1.5)
cosTable(loop) = (Cos(loop)*1.5)*(Sin(loop)*1.5)
Next


While Not KeyHit(1)

LockBuffer BackBuffer()
LockBuffer ImageBuffer(image)

For y = -99 To 100
For x = -159 To 160
WritePixelFast Abs(x+160),Abs(y+120),ReadPixelFast (Abs((x * Costable(angle) - y * Sintable(angle)) + 150) Mod 299,Abs((x * Sintable(angle) + y * Costable(angle)) + 150) Mod 299,ImageBuffer(image))
Next
Next

UnlockBuffer BackBuffer()
UnlockBuffer ImageBuffer(image)

If angle > 359 Then angle = 0 Else angle = angle + 1

Flip

Wend


[Shockwave]

Sweet Really nice work Rbraz.

[Tetra]

Nice one Rbraz, glad to see this one make it in 20 lines  

[Optimus]

Quite cool, I like it!

[Rbz]

Thanks dudes !