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Prevent panic if BHEIGHT <= 0 #13

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Prevent panic if BHEIGHT <= 0 #13

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7 changes: 6 additions & 1 deletion main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -124,11 +124,16 @@ func main() {
for y := 0; y < b.Max.Y; y++ {
for x := 0; x < b.Max.X; x++ {
// Every BHEIGHT lines in average a new distorted block begins
if seededRand.Intn(BHEIGHT*b.Max.X) == 0 {
if BHEIGHT <= 0 {
line_off = offset(BOFFSET)
stride = seededRand.NormFloat64() * STRIDE_MAG
yset = y
} else if seededRand.Intn(BHEIGHT*b.Max.X) == 0 {
line_off = offset(BOFFSET)
stride = seededRand.NormFloat64() * STRIDE_MAG
yset = y
}

// at the line where the block has begun, we don't want to offset the image
// so stride_off is 0 on the block's line
stride_off := int(stride * float64(y-yset))
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