02-18-2016, 04:03 AM
OK, this should work. In case you've never installed a GIMP plugin before, place it in "C:\Users\<username>\.gimp-2.8\plug-ins", and then (re)start GIMP.
The way it works is that you should open up the hammer sheet, then go to Filters - BIS Hammer Merge (it'll be way near the bottom). You'll get a popup with 4 parameters. "Character sheet" is the sheet with the corresponding Mario/Luigi sprites to merge with this hammer sheet. Typically this is the image just before it, e.g. if you have Fobjpc0034.png open you should pick Fobjpc0033.png. "Width in frames" is how many frames wide the character sheet is. "Height in frames" is the same for the height.
The last parameter, "Additional Y offset for character sprites", is a bit weird. The script centres the character sprites to the hammer sprites and, while this almost gets it right, the vertical position is usually a bit off from what you actually want. This parameter allows you to tell the script how many more pixels up (negative number) or down (positive number) the character sprites should be placed. I've been testing with Fobjpc0034, Fobjpc0036 and Fobjpc0038, and for these the value for this parameter is best set at 2, 4, and -6 respectively. I don't know if Luigi has any other hammer sheets, but if he does I'd suggest first trying it with 0, and then seeing how far off most of the sprites seem to be. A bit of trial and error, but unfortunately there's no way to detect this automatically.
And yeah, you'll have to adjust some of the frames by hand, like you said you can compare them to in-game screenshots (I found stepping through frames on DeSmuME to be quite useful). This is why I made the script put the hammers and characters on separate layers. If a frame is off, you can cut out the hammer, paste it as its own layer and move it (and then merge back if you want or whatever).
Uh yeah I think that's it! Tell me if anything explodes
The way it works is that you should open up the hammer sheet, then go to Filters - BIS Hammer Merge (it'll be way near the bottom). You'll get a popup with 4 parameters. "Character sheet" is the sheet with the corresponding Mario/Luigi sprites to merge with this hammer sheet. Typically this is the image just before it, e.g. if you have Fobjpc0034.png open you should pick Fobjpc0033.png. "Width in frames" is how many frames wide the character sheet is. "Height in frames" is the same for the height.
The last parameter, "Additional Y offset for character sprites", is a bit weird. The script centres the character sprites to the hammer sprites and, while this almost gets it right, the vertical position is usually a bit off from what you actually want. This parameter allows you to tell the script how many more pixels up (negative number) or down (positive number) the character sprites should be placed. I've been testing with Fobjpc0034, Fobjpc0036 and Fobjpc0038, and for these the value for this parameter is best set at 2, 4, and -6 respectively. I don't know if Luigi has any other hammer sheets, but if he does I'd suggest first trying it with 0, and then seeing how far off most of the sprites seem to be. A bit of trial and error, but unfortunately there's no way to detect this automatically.
And yeah, you'll have to adjust some of the frames by hand, like you said you can compare them to in-game screenshots (I found stepping through frames on DeSmuME to be quite useful). This is why I made the script put the hammers and characters on separate layers. If a frame is off, you can cut out the hammer, paste it as its own layer and move it (and then merge back if you want or whatever).
Uh yeah I think that's it! Tell me if anything explodes