https://github.com/mt-mods/spacecannon

https://github.com/mt-mods/spacecannon

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• Host: GitHub
• URL: https://github.com/mt-mods/spacecannon
• Owner: mt-mods
• Created: 2018-10-11T18:18:36.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2024-02-27T21:58:51.000Z (11 months ago)
• Last Synced: 2024-02-27T22:49:15.787Z (11 months ago)
• Language: Lua
• Size: 4.31 MB
• Stars: 2
• Watchers: 7
• Forks: 4
• Open Issues: 7
• Metadata Files:
  • Readme: readme.md

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README

        

Spacecannon mod

[![ContentDB](https://content.minetest.net/packages/BuckarooBanzay/spacecannon/shields/downloads/)](https://content.minetest.net/packages/BuckarooBanzay/spacecannon/)

# Overview

Adds five scifi/space cannons with various projectile-speed and explosion-strength.

The cannons need HV-Power from a `technic` network and can be controlled via formspec/hand, mesecons or digilines.

They also need to charge first, which can take a couple of seconds depending on cannon-type.

The projectile detonates on impact but only in _non-protected_ areas!

# Screenshots







# Dependencies

Depends on:

* `technic`

Supports:

* `mesecons`

* `digilines`

# Mesecons

An "on" signal triggers a fire-action.

# Digilines

Fire a cannon:

```lua

if event.type == "program" then

 digiline_send("cannon", { command="fire", verbose=false })

end

```

Example response from a "get" request:

```lua

{

        type = "digiline",

        channel = "c7",

        msg = {

                HV_EU_input = 0,

                HV_EU_demand = 0,

                dir = {

                        y = 0,

                        x = 0,

                        z = 1

                },

                powerstorage = 10000,

                ready = true,

                origin = "c7",

                name = "spacecannon:cannon_green",

                pos = {

                        y = 10,

                        x = -64,

                        z = -53

                }

        }

}

```

The "fire" request can specify an optional "verbose" flag.  If this flag

evaluates to true, then the following example response will be sent back.

Note that if you have a large number of cannons that you will likely want

to disable responses.  N cannons firing and generating responses will

cause N^2 messages to be processed, as each cannon receives the fire response

from all of its peers.  If N>20, your LUAC will overheat.  N>900, and your

server admin will want to have a chat with you.

```lua

{

        type = "digiline",

        channel = "c2",

        msg = {

                pos = {

                        y = 10,

                        x = -59,

                        z = -53

                },

                origin = "c2",

                success = true

        }

}

```

# Api

Modify the ability to shoot depending on position or playername:

```lua

spacecannon.can_shoot = function(pos, playername)

	return true

end

```

# Contributors

* @BuckarooBanzay

* @dennisjenkins75

* @kiedtl

# License

Code: MIT

Textures: CC-BY-SA 3.0

# Attributions

* sounds/spacecannon_shoot.ogg https://freesound.org/people/jonccox/sounds/175261/