mirror of
https://github.com/pandorabox-io/spacecannon.git
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9f1a526dc6
five not three cannons. Would be great if each was described a bit, especially those with the ammo-slot
116 lines
2.6 KiB
Markdown
116 lines
2.6 KiB
Markdown
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Spacecannon mod
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[](https://content.minetest.net/packages/BuckarooBanzay/spacecannon/)
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# Overview
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Adds five scifi/space cannons with various projectile-speed and explosion-strength.
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The cannons need HV-Power from a `technic` network and can be controlled via formspec/hand, mesecons or digilines.
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They also need to charge first, which can take a couple of seconds depending on cannon-type.
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The projectile detonates on impact but only in _non-protected_ areas!
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# Screenshots
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<img src="./screenshot_1.png"/>
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<img src="./screenshot_2.png"/>
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<img src="./screenshot_3.png"/>
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# Dependencies
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Depends on:
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* `technic`
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Supports:
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* `mesecons`
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* `digilines`
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# Mesecons
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An "on" signal triggers a fire-action.
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# Digilines
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Fire a cannon:
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```lua
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if event.type == "program" then
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digiline_send("cannon", { command="fire", verbose=false })
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end
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```
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Example response from a "get" request:
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```lua
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{
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type = "digiline",
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channel = "c7",
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msg = {
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HV_EU_input = 0,
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HV_EU_demand = 0,
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dir = {
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y = 0,
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x = 0,
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z = 1
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},
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powerstorage = 10000,
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ready = true,
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origin = "c7",
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name = "spacecannon:cannon_green",
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pos = {
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y = 10,
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x = -64,
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z = -53
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}
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}
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}
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```
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The "fire" request can specify an optional "verbose" flag. If this flag
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evaluates to true, then the following example response will be sent back.
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Note that if you have a large number of cannons that you will likely want
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to disable responses. N cannons firing and generating responses will
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cause N^2 messages to be processed, as each cannon receives the fire response
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from all of its peers. If N>20, your LUAC will overheat. N>900, and your
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server admin will want to have a chat with you.
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```lua
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{
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type = "digiline",
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channel = "c2",
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msg = {
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pos = {
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y = 10,
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x = -59,
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z = -53
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},
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origin = "c2",
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success = true
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}
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}
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```
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# Api
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Modify the ability to shoot depending on position or playername:
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```lua
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spacecannon.can_shoot = function(pos, playername)
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return true
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end
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```
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# Contributors
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* @BuckarooBanzay
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* @dennisjenkins75
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* @kiedtl
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# License
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Code: MIT
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Textures: CC-BY-SA 3.0
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# Attributions
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* sounds/spacecannon_shoot.ogg https://freesound.org/people/jonccox/sounds/175261/
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