Adding additional arguments to love.keypressed()

[Bindie]

Hey, I need help on the love.keypressed().

Basically I have up to 9 players all with individual keysets:

Code: Select all

player = {
			{str = 1,
			vel = 0,
			spd = 100,
			kck = 0,
			bmb = 1,
			control = {
						"w", -- Up
						"s", -- Down
						"a", -- Left
						"d", -- Right
						"lctrl", -- Lay
						"e", -- Use
						},
			graphics = 1,
			anim = 1,
			animTime = 0,
			x = 0,
			y = 0,
			w = 63,
			h = 63,
			direction = 1,
			},

			{str = 1,
			vel = 0,
			spd = 100,
			kck = 0,
			bmb = 1,
			control = {
						"up", -- Up
						"down", -- Down
						"left", -- Left
						"right", -- Right
						"rctrl", -- Lay
						"lshift", -- Use
						},
			graphics = 1,
			anim = 1,
			animTime = 0,
			x = 0,
			y = 0,
			w = 63,
			h = 63,
			direction = 1,
			},
		}

How do I pass entire keySets into love.keypressed?

I uploaded my main.lua, it's very short and don't mind that I passed all players into love.keypressed, I was attempting to pass their keysets into the function to not have to write for example the bomb laying function for every key related to bomb-laying.

[BOT-Brad]

That's not really how love.keypressed works. You shouldn't call it yourself, it is a function that will get called automatically by Love during run-time.

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function love.keypressed(k, isrepeat)
    for i, p in ipairs(players) do
        if k==p.control[5] then -- Did we press the "Lay" key?
            --trigger this players "lay" function
        end
    end
end

For the 4 movement keys, I recommend using love.keyboard.isDown.

[ivan]

How do I pass entire keySets into love.keypressed?

I haven't used Love2D too much but I've programmed similar things so here is my suggestion.

Save your key mappings to an external file, don't include "speed", "vel", "anim" there, just save the mappings in a table like:

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local mappings = 
{
  moveup = "up",
  movedown = "down"
  [ ... ]
}
return mappings

Make sure the format is: "mappings[action] = key"
This way, there are no duplicate "actions" in the table.
Probably a good idea to make the file user-editable in the future.

Then you either use a callback like Bot-Brad mentioned:

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function love.keypressed(pressedKey, isrepeat)
    -- for each action
    for action, mappedKey in pairs(mappings) do
        if pressedKey == mappedKey then
            --perform "action"
        end
    end
end

With the approach I mentioned,
I think it's simpler to "poll" the system instead of waiting for callbacks:

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function processInput(mappings)
    -- for each action
    for action, mappedKey in pairs(mappings) do
        if love.keyboard.isDown( mappedKey ) then
            --perform "action"
        end
    end
end

[Bindie]

Thanks.