Commit Graph

28 Commits

Author SHA1 Message Date
red-001
a84e2669c7 Restructure code to only check def once. 2016-04-16 19:27:16 +01:00
Auke Kok
ccee025ce3 Calculate blast intensity at all locations.
We define the blast intensity as the square of the tnt_radius, divided
by the square of the distance to the explosion center, where distance
is limited to 1 at the lower end.

When destroying nodes, we calculate the intensity for each node, and
only destroy the nodes when the intensity is 1.0 or larger. To avoid
perfectly spherical explosions, we make sure to retain a randomness
factor of 20%. This will make explosion edges jagged and not smooth,
but not too much.

We pass the calculated intensity to on_blast() functions as well,
except we take the jitter here out and make sure it's always 1.0
or larger.
2016-04-16 19:27:16 +01:00
Auke Kok
8c801529df TNT: Limit amount of stacks ejected.
We apply a log scale to the size of the stacks ejected, so that
in larger explosions we are getting larger stacks. For normal r=3
explosions, this gives stack sizes ~6-7 or so, but for r=10 explosions
it could end up giving stacks of 25+.V
2016-04-16 19:27:16 +01:00
Auke Kok
3ddff2fbea TNT: Chain reaction
With the new high res timer, we can make TNT much better create chain
reactions. This does exactly that.
2016-04-16 19:27:16 +01:00
Auke Kok
eafd1ebc43 TNT particles: use drops list smartly
The drops list already has quantities, so let's just select the one
with the highest quantity from it, and use that as tile. Fallback
tile will therefore only be used if explosion happens in air. Oh well.
2016-04-16 19:27:16 +01:00
Auke Kok
3623398b78 TNT: Spacing / codestyle fixes
- Fix spacing errors around = and ..
- Indentation fixes
- Break up long lines
2016-04-16 19:27:16 +01:00
red-001
b25889e742 Make TNT faster by using VoxelManip() for removing nodes. 2016-04-16 19:27:16 +01:00
red-001
9f4dc1412b Fix TNT mod calculate blast intensity.
Currently the TNT mod uses a dummy vaule of 1 for this.
2016-04-16 19:27:16 +01:00
red-001
cfef21f4d9 Add TNT API. 2016-04-16 19:27:16 +01:00
Auke Kok
8556dd30e2 TNT: add some depth to the explosion effect
We add a dirt-like particle (drawn from scratch, uses some
colors from default_dirt's palette) to spawn many particles
that have collision enabled around the center of the blast.

This has the effect of obscuring the center of the blast, as
that is a painfully visible empty area when the explosion happens,
as there's only a little spark.

The dirt particles bounce around the walls and floor a bit,
and disappear rapidly, well before the smoke particles disappear.

This is a nice visual distraction that obscures the sudden
appearance of the gaping hole, and makes it a whole lot more
believable.
2016-04-16 19:27:16 +01:00
Auke Kok
8cd049c224 Make TNT a bit more fun.
But not too much.

TNT is a bit underwhelming at the moment. We can make it a bit
more interesting by ejecting not just one or two itemstacks,
but a bunch of them. This code splits up the drops into
separate itemstacks that are 2-5 items together, which
results in generally roughly 10 itemstacks being ejected.

Since now we have multiple ejecta, it makes sense to tune
the ejecta velocities a bit better to get the appearance of
an actual explosion better. The items will not all start
with the same vertical velocity, since that would look
like fireworks. Instead we give them all a different vertical
speed.
2016-04-16 19:27:16 +01:00
Auke Kok
12d5ca2f48 Allow the on_blast API to pass an itemstack.
If the node is special and has an on_blast() handler, we need
to call it instead of getting node drops manually. However, we
do want to know if drops should be added for the special nodes,
so we modify the on_blast() handler code to allow the nodedef
handlers to pass back itemstacks. This could be used by e.g.
the doors mod to drop door items after a blast.

Since this API is documented in lua_api.txt, a separate PR will
be incoming to update the on_blast() documentation.
2016-04-16 19:27:16 +01:00
tenplus1
36d18cb161 added timer to tnt:tnt_burning for explosions
By adding the timer to the tnt:tnt_burning node it will help mods add the block and cause an explosion after 4 seconds instead of doing nothing like in it's current state.
2016-02-18 13:56:57 +00:00
Craig Davison
b47a556472 Remove log_mods from TNT
This option is not documented nor is it used with any other mod in Minetest Game so why should it be used in TNT?
2016-02-18 13:56:50 +00:00
paramat
7d2dfe4101 Consolidate ABMs
Spread ABM intervals evenly across 1 to 16 seconds
16s ensures no nodes are missed when player walks past
Adjust chance values to compensate, for identical action rates
Combine lavacooling ABMs into one, return to chance = 1
Grass growth: add 'neighbors = "air"' to avoid
processing the thousands of underground dirt nodes
Grass death: Reduce action rate to that of grass growth
Fire: Use chance = 1 for flame extinguishing
and flame removal when mod is disabled
2016-02-14 05:22:20 +00:00
ShadowNinja
c76a91943c Fix TNT drops being placed inside nodes 2016-01-05 23:28:59 +00:00
paramat
8e51f318b3 Rename to Minetest Game
Rename in game.conf and documentation
Update game_api.txt documentation for bucket API and tree functions
Fix tab, space and comment formatting in game_api.txt
Rename in mod READMEs
2015-09-30 23:33:12 +01:00
paramat
e15fde1624 Fix is_ground_content settings for nodes
Remove line if set to the default of 'true'
2015-06-18 02:25:02 +01:00
Wuzzy
0aebf864d1 Add gunpowder trails
Uses group “connect_to_raillike”
2015-06-07 14:27:18 +02:00
Novatux
aaa6c260cd Copy pos before giving it to on_blast because it can modify it; also remove a debug print that had nothing to do here 2015-05-12 21:03:02 +02:00
Novatux
4bd1094619 Fix problems with TNT 2015-05-12 16:53:04 +02:00
Wuzzy
8bc8dd64c5 Make TNT respect on_blast, implement on_blast for some nodes
Implemented nodes:
- Steel Door: Ignores explosion
- Locked Chest: Ignores explosion
- Fire: Ignores explosion
- TNT: Starts burning
- Burning TNT: Explodes immediately
- Gunpowder: Starts burning
- Burning Gunpowder: Ignores explosion
2015-05-12 16:32:52 +02:00
PilzAdam
c654c9fd11 Remove weird constants in default 2015-01-10 15:47:30 +01:00
Gabriel Huber
6967232619 Fix TNT init for undefined enable_tnt setting 2014-07-25 23:29:44 -04:00
ShadowNinja
0ca4520cc2 Rewrite TNT 2014-07-22 12:05:40 -04:00
BlockMen
3180bdfe6c Add protection to TNT (by @tenplus1) 2014-07-13 19:24:57 +02:00
David Gumberg
e106fd51ca Compress all textures losslessly using optipng and advpng 2014-07-05 16:06:00 +02:00
BlockMen
1e628ed92a Add tnt mod (freeminer version) 2014-07-05 16:02:58 +02:00