Not too realistic, necessarily, but I think it would really take the cake if some secondary effects were added. I see you've talked a bit about adding ash and such which is cool. I understand you don't want to add too many new blocks or mechanics if possible?
Main, coolest thing I can see is adding initial explosions to some (pyroclastic) eruptions, with a chance of pyroclasts flying out and blowing up on impact. If you wanna be really realistic, it'd just leave a stone there on impact most of the time, with no explosion; but a little shower of retextured TNT each with a random direction/velocity would do the trick I think, and add some absolute mayhem. Heck, you might even just let the initial explosion throw them; just spawn them in a cluster and let them loose.
As a bonus, you wouldn't have to do anything special or crazy huge (IMO) with the actual eruption explosions; the added projectiles will add enough chaos as it is.
I would add like rumbling sound effects to warn the player beforehand, just to simulate an earthquake. Just a nice detail. And maybe necessary if there are explosions. >:}
Other stuff: I love the idea of ash. Maybe it can be used as bonemeal. Acid rain (If it rains, it hurts you a bit, kills crops) for a while after an eruption would be kind of neat. 'Boiling' water sources (maybe just damage + some generated particles?) and steam explosions would be some cool warning signs as well.
Not too realistic, necessarily, but I think it would really take the cake if some secondary effects were added. I see you've talked a bit about adding ash and such which is cool. I understand you don't want to add too many new blocks or mechanics if possible?
Main, coolest thing I can see is adding initial explosions to some (pyroclastic) eruptions, with a chance of pyroclasts flying out and blowing up on impact. If you wanna be really realistic, it'd just leave a stone there on impact most of the time, with no explosion; but a little shower of retextured TNT each with a random direction/velocity would do the trick I think, and add some absolute mayhem. Heck, you might even just let the initial explosion throw them; just spawn them in a cluster and let them loose. As a bonus, you wouldn't have to do anything special or crazy huge (IMO) with the actual eruption explosions; the added projectiles will add enough chaos as it is.
I would add like rumbling sound effects to warn the player beforehand, just to simulate an earthquake. Just a nice detail. And maybe necessary if there are explosions. >:}
Other stuff: I love the idea of ash. Maybe it can be used as bonemeal. Acid rain (If it rains, it hurts you a bit, kills crops) for a while after an eruption would be kind of neat. 'Boiling' water sources (maybe just damage + some generated particles?) and steam explosions would be some cool warning signs as well.
Cheers.