Yes, my idea behind it is generally draw a sprite, copy it into a new frame, move some parts of it, then reconnect and clean up the ugliness that results from an arm being completely disconnected from a shift in the rest of the image.
According to a pixel artist friend of mine, all the companies he's worked for using those types of anims will build a proprietary tool that essentially works like Flash in a pure-bitmap context; tweening, scaling, rotation, and bitmap cutouts(e.g. parts that bulge and bounce, like the belly of a fat character, simply reuse an area of the sprite and layer it on top). These tools are used for menu layouts and level design as well as sprites.
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Yes, my idea behind it is generally draw a sprite, copy it into a new frame, move some parts of it, then reconnect and clean up the ugliness that results from an arm being completely disconnected from a shift in the rest of the image.
According to a pixel artist friend of mine, all the companies he's worked for using those types of anims will build a proprietary tool that essentially works like Flash in a pure-bitmap context; tweening, scaling, rotation, and bitmap cutouts(e.g. parts that bulge and bounce, like the belly of a fat character, simply reuse an area of the sprite and layer it on top). These tools are used for menu layouts and level design as well as sprites.