I'm fairly proficient with my Mac (Leopard/10.5.8), but I've been having difficulty installing mods on it. So far, the only success that I've had with it was installing mcpatcher, but after Halloween update, I couldn't use the updated version. I've been trying to find a way to get steeb's Minecraft Texture Rotator (http://sourceforge.net/projects/quandaryrotator/) to work, but it's been fruitless. I've emailed him, but he didn't know how to do a mac install for his mod. He said if I, or anyone else can find a way to make it work, it'll go into the new readme. I've included the readme to help with figuring out how to make it work on OSX 10.5.8. If you find out how it works, I'll be sure to let steeb know so all due credit can be awarded to you.
(Also, the solution is not 'buying a PC' or 'stop playing with a fisher-price toy' for all you smart alecks out there)
Without further ado, here is the readme:
What it does:
When the Minecraft Texture Rotator.jar file is executed, it unpacks minecraft.jar, adds/replaces a set of textures based on the included texture list.txt, then repacks minecraft.jar. The program checks the current day on your computer, and will rotate through 1 month of textures per day, ie; today is May, tomorrow will be June, the day after will be July. The textures are updated everytime you run this program. If you do not run this program when starting minecraft, you will just get whichever textures you last installed.
By default, the texture list is configured to use the Quandary Texture Pack by ExtraNoise. But you can change it to whatever set of textures you choose. See below for configuration options.
-1. Install and load up minecraft at least once.
0. First, download any texture packs you wish to use. For this example, we will use the Quandary Texture packs at
Download January through December. Unzip each one into minecraft's bin folder (C:\Users\<Your Name>\AppData\Roaming\.minecraft\bin on Windows 7). There should now be 12 folders in bin labeled Quandary_January through Quandary_December.
1. Download and unrar "Minecraft Texture Rotator.rar" to the same folder. "texture list.txt" and "Minecraft Texture Rotator.jar" should now be in your /bin/ folder.
2. Create a shortcut to "Minecraft Texture Rotator.jar"
3. On the shortcut, select "properties".
4. Select the "Target" field. Outside of the quotes add the path to your minecraft executable, in quotes, with forward slashes. Example: "C:\Users\<Your Name>\AppData\Roaming\.minecraft\bin\Minecraft Texture Rotator.jar" "e:/minecraft/minecraft.exe"
5. Run the shortcut to start minecraft! It will check the day and load the appropriate texture pack. Consider customizing your texture list.txt for more variety.
If you can find a way to make any other mods work on OSX, post it here!