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Will rain speed up the growth of seedlings, sugarcane, wheat, melons and pumpkin seeds?enter image description here

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Wow, until I blew that picture up and stared for a while, my eyes were screaming "optical illusion!" at that. The right and left sections of cobblestone blend together. –  harbichidian Oct 5 '11 at 14:46
really i can easily tell the difference –  ProSay Oct 6 '11 at 16:31
rain only effects the rate of fishing! –  IrishPersonality Mar 3 '12 at 9:39

3 Answers 3

up vote 20 down vote accepted

The code that determines the rate of growth is:

    if (crop.getBlockBelow().isHydrated())
        growthRate = 4.0;
        growthRate = 2.0;

    for (farmland in crop.getFarmlandIn8BlocksBelow()) //Immediately surrounding Farmland with crops
        if (farmland.isHydrated())
            growthRate = growthRate + 0.75
            growthRate = growthRate + 0.25

    if (crop.hasNeighborCropOnNS() and crop.hasNeighborCropOnEW()) //If (north OR south) AND (east OR west) have crops
        growthRate = growthRate / 2;
    else if (crop.hasNeighborCropDiagonally()) //If any immediately diagonal square has a crop
        growthRate = growthRate / 2;

    return growthRate;

isHydrated() returns whether a farmland block is moistened or not. Rain does not make farmland moist any quicker than normal.

So the answer is no, rain does not affect the rate of growth of crops.

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Is it legal to get the source code? –  BlaXpirit Oct 5 '11 at 12:41
@BlaXpirit This is not the source code, this is decompiled. I got this section of the code from the wiki. –  fredley Oct 5 '11 at 12:43
It depends on where you are and what you do it for. Basically if it's not legal, then every Minecraft mod-make and mod user is breaking the law, not to mention the wiki, and this site, several times over. In theory, Mojang could come after us but given that they are going to give away the source code for Minecraft for free in the near future I think that's unlikely. –  fredley Oct 5 '11 at 14:29
@BlaXpirit: As far as I know Notch made the statement to drop obfuscation from future releases to support modders (I think this happened with 1.8). So yes, I think Notch has no problem with decompiling, learning and even modifying Minecraft. –  Bobby Oct 5 '11 at 19:27
@Bobby Obfuscation is still in 1.8 and 1.9. –  user3389 Oct 6 '11 at 17:10

Rain hydrates farmland if it isn't already. In the absence of water, if the farmland is not hydrated then rain will in fact speed up the growing process for the duration.

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If you want a very simple answer, no, unless you have a mod or a server plugin to do it.

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