[MOD] cannons with a lot of features! [2.5] [cannons]

[Achilles]

Nice mod, i really like the idea of cannons in Minetest especially as i was planning to build a huge wall around a town to defend it.

Is there any way of making the cannon automatic so that if anyone other than the person who made it gets in range of the cannon they will be killed- A bit like dispensers in Minecraft.

You could also change the mod so that you could add the name of a client/player who you don't want the cannons to fire at.

Just a couple of hints but otherwise i love the mod, thanks

[addi]

Nice mod, i really like the idea of cannons in Minetest especially as i was planning to build a huge wall around a town to defend it.

Is there any way of making the cannon automatic so that if anyone other than the person who made it gets in range of the cannon they will be killed- A bit like dispensers in Minecraft.

You could also change the mod so that you could add the name of a client/player who you don't want the cannons to fire at.

Just a couple of hints but otherwise i love the mod, thanks

thanks
i dont know what the dispensers mod is doing, but you can combine this with the mesecons mod:
its possible to build some mesecons wires to the cannon and a player detector wich detects the "enemy" and give a impulse to the cannon(s). than the cannon will shot to the last possition they had shot.

[dgm5555]

Great mod. Few questions
How do you break the cannon?
I take it "muni" is ammunition. It took me a little while to figure out that stacks of cannon balls are not able to be used for ammunition - you have to use a single ball.

[addi]

you can break (dig) the cannon only if they is empty (no muni and no gunpowder).

have you ever sean a cannon, that shoots a stack of balls? only a single ball can be shooted all other is unreal. stacks only designed to save space in chests or for decoration.

[dgm5555]

have you ever sean a cannon, that shoots a stack of balls? only a single ball can be shooted all other is unreal. stacks only designed to save space in chests or for decoration.

Well there was grapeshot and cannister shot, so yes cannons *can* shoot multiple balls (though I presumed the stack didn't refer to those). However in my defence I've never seen a cannon you could load with 99 balls, so an entirely unknown (perhaps just to me) "semi-automatic cannon" has been modelled - check out the magazine on that baby!!! So from real-world experience it would be reasonable to think that the cannon would be using balls from a stack (though admittedly these would usually be placed next to the cannon for firing or in the hold for storage rather than actually 'attached' to the cannon :-p

PS On that note (just for my curiosity) why did you create your cannon as a kind of turret and in two parts - I've never seen anything similar for a 'full-sized' cannon (as opposed to a more modern turret gun, or one of the smaller portable cannon that were developed), and would have thought the recoil would knock it over if it was built. Not that I particularly mind, it just seems a bit strange to have to dig a hole in the ground or the deck to sink the frame (not a carriage as no wheels) of the cannon into (to maintain a more realistic low centre of gravity), then have to attach the cannon barrel separately.

PPS I guess this ruins my next non-reality suggestion for a fireworks version - I'd really like to be able to trigger my ship to fire all cannons at once (as you've allowed with mesecons), but instead of cannon balls it fires an exploding ball with fireworks (like an average fireworks rocket). [Actually don't worry, someones allready done fireworks, so I'll probably just modify the fireworks mod viewtopic.php?id=3473to to have a display around my ship]

PPPS, where do I find the optional bucket and fire mods, and what are they used for?

LOL
David

[addi]

ok ur right :) but not all cannonballs can stacked up to 99 the mithrill can only stacked to 9.

Well there was grapeshot and cannister shot, so yes cannons *can* shoot multiple balls (though I presumed the stack didn't refer to those). However in my defence I've never seen a cannon you could load with 99 balls, so an entirely unknown (perhaps just to me) "semi-automatic cannon" has been modelled - check out the magazine on that baby!!! So from real-world experience it would be reasonable to think that the cannon would be using balls from a stack (though admittedly these would usually be placed next to the cannon for firing or in the hold for storage rather than actually 'attached' to the cannon :-p

this is because minetest, does not support multiple textures to a single node, so a "singlenode" cannon would look realy ugly.

PS On that note (just for my curiosity) why did you create your cannon as a kind of turret and in two parts - I've never seen anything similar for a 'full-sized' cannon (as opposed to a more modern turret gun, or one of the smaller portable cannon that were developed), and would have thought the recoil would knock it over if it was built. Not that I particularly mind, it just seems a bit strange to have to dig a hole in the ground or the deck to sink the frame (not a carriage as no wheels) of the cannon into (to maintain a more realistic low centre of gravity), then have to attach the cannon barrel separately.

thats also a reason, that i used the 2 parts cannon

PPS I guess this ruins my next non-reality suggestion for a fireworks version - I'd really like to be able to trigger my ship to fire all cannons at once (as you've allowed with mesecons), but instead of cannon balls it fires an exploding ball with fireworks (like an average fireworks rocket). [Actually don't worry, someones allready done fireworks, so I'll probably just modify the fireworks mod viewtopic.php?id=3473to to have a display around my ship]

XD /me likes that idea
maybe that could be an easteregg in the next version.

PPPS, where do I find the optional bucket and fire mods, and what are they used for?

the buket and the fire mod are included in minetest_game. the bucket is need to create salt wich is used for gunpowder, and the fire is need for the burning balls
i dont know, maybe in another game there is missing the bucket or fire so its in dependencies

[addi]

Small Update

NEW FEATURES FOR VERSION 2.1

• changed craft reziep for steel ball, because it conflicted with another mod
• the config can made now in world dir (cannons.conf)

Download is here: http://dev.king-arthur.eu/cannons/downloads

also a lot of thanks for over 400 Downloads!

[lotek]

does this mod is compatible with the latest minetest (e.g. 0.4.10). In my case everything works, but no damage on players or the environment happens.

[addi]

does this mod is compatible with the latest minetest (e.g. 0.4.10). In my case everything works, but no damage on players or the environment happens.

yes of course. i just tried all out and it works realy fine, does this only happen with a special cannonball?
and it does not work if the other player is too close to the cannon. then the ball will fly through it.

damage to the environment does only take the exploding or the fire cannonball all others only damage players and mobs

[atam7]

you accidently named the bronze cannon "bronze_canon" in the items.lua folder.

[addi]

i just want to say thanks for more than 600 downloads!

[Krock]

i just want to say thanks for more than 600 downloads!

No problem, buddy; It's a great mod!

[addi]

i was just surprised, i thougt nobody is using it.

[philipbenr]

It is great, and I think that tit should be used more, if at all possible.

[Don]

i was just surprised, i thougt nobody is using it.

I have it installed on my server. I don't have damage enabled. We like to use it for the looks.
In single player I do sometimes play with it to destroy stuff
Thanks for the great mod.

[FreeLikeGNU]

please fix your git clone link in your original post to:
git clone https://bitbucket.org/kingarthursteam/cannons.git

thanks!

[addi]

please fix your git clone link in your original post to:
git clone https://bitbucket.org/kingarthursteam/cannons.git

thanks!

thanks for reporting, fixed

[Krock]

When shooting with an explosive cannon bullet (normal cannon, on a stone mainstay)

Code: Select all

10:31:00: ERROR[main]: ServerError: E:\Programme\minetest\bin\..\mods\cannons/cannonballs.lua:32: at
tempt to index field 'tiles' (a nil value)
10:31:00: ERROR[main]: stack traceback:
10:31:00: ERROR[main]:  E:\Programme\minetest\bin\..\mods\cannons/cannonballs.lua:32: in function 'o
n_node_hit'
10:31:00: ERROR[main]:  E:\Programme\minetest\bin\..\mods\cannons/functions.lua:263: in function <E:
\Programme\minetest\bin\..\mods\cannons/functions.lua:243>

[addi]

When shooting with an explosive cannon bullet (normal cannon, on a stone mainstay)

Code: Select all

10:31:00: ERROR[main]: ServerError: E:\Programme\minetest\bin\..\mods\cannons/cannonballs.lua:32: at
tempt to index field 'tiles' (a nil value)
10:31:00: ERROR[main]: stack traceback:
10:31:00: ERROR[main]:  E:\Programme\minetest\bin\..\mods\cannons/cannonballs.lua:32: in function 'o
n_node_hit'
10:31:00: ERROR[main]:  E:\Programme\minetest\bin\..\mods\cannons/functions.lua:263: in function <E:
\Programme\minetest\bin\..\mods\cannons/functions.lua:243>

it seems you hit a node wich used tile_images instead of tiles. its fixed now in version 2.1.1

[bobomb]

I wonder if this mod could become a Scorched Earth mod. It would be nice to be able to enter the compass angle, the vertical angle, and the power into the cannon in order to make this more of an artillery simulator. And an ICBM shot. haha.

[addi]

I wonder if this mod could become a Scorched Earth mod. It would be nice to be able to enter the compass angle, the vertical angle, and the power into the cannon in order to make this more of an artillery simulator. And an ICBM shot. haha.

This would be too modern. Ill not add such a feature to this mod. But if you want you can mod my mod to add that.

[blert2112]

I added in a few bits of code to make the ball stacks slightly more than decorative.

• - r-click ball stack with empty hand to get one ball of same material
  - r-click with a ball of the same material to add it back to the stack
  - stack max balls = 4
  - take four balls and the stack is removed from the world

add to functions.lua

Code: Select all

function cannons.on_construct_ball_stack(pos)
	local node = minetest.get_node_or_nil(pos)
	local material = string.split(node.name, "_")[2]
	local meta = minetest.get_meta(pos)
	meta:set_int("usecount", 0)
	meta:set_string("material", material)
end

function cannons.on_rightclick_ball_stack(pos, node, player, itemstack)
	if not player or not player:is_player() then
		return
	end
	local meta = minetest.get_meta(pos)
	local count = meta:get_int("usecount")
	local material = meta:get_string("material")
	if itemstack:is_empty() then
		player:set_wielded_item(itemstack:add_item("cannons:ball_"..material))
		count = count + 1
	else
		if (itemstack:get_name() == "cannons:ball_"..material) and (count > 0) then
			count = count - 1
			itemstack:take_item(1)
		end
	end
	if count == 4 then
		minetest.remove_node(pos)
	else
		meta:set_int("usecount", count)
	end
end

add to each register_node for the stacks

Code: Select all

	on_construct = function(pos)
		cannons.on_construct_ball_stack(pos)
	end,
	on_rightclick = function(pos, node, player, itemstack, pointed_thing)
		cannons.on_rightclick_ball_stack(pos, node, player, itemstack)
	end

I also thought about modifying the node boxes so that, if you take a ball from the stack, the visual will remove the ball too.

[addi]

great idea :)
Ill apply it to the mod, if you agree.
btw: this code can be shortened and optimized:

Code: Select all

       on_construct = function(pos)
          cannons.on_construct_ball_stack(pos)
       end,
       on_rightclick = function(pos, node, player, itemstack, pointed_thing)
          cannons.on_rightclick_ball_stack(pos, node, player, itemstack)
       end

change to this:

Code: Select all

       on_construct = cannons.on_construct_ball_stack,
       on_rightclick = cannons.on_rightclick_ball_stack

;-)

[blert2112]

Please do!

[addi]

Update to version 2.5:

New Features:

• Cannonball stack is not longer decoration only.
  place a cannonball on another (right click) will create a stack of it.
  left click a stack to get a cannonball.
• Supports TNT now!
  If the TNT mod is enabled (mostly on singleplayer) you can use tnt gunpowder as gunpowder, and you can shoot tnt blocks now!
  Warning: Dont shoot too fast or your cannon will explode ;-P
• Nice voxellike meshnodes now.
  get rid of this ugly 2-part cannonstands. Old cannonstands will be converted.
• Uses "default" formspec style now to fit into Mintest Game.

Bug fixes:

• fixed infinite stacks
• fixed cannonstand craftreziep
• converted sound files from stereo to mono to make OpenAl happy

Download:
Version 2.5 [13.06.2015]
other downloads