(Code of the day) Key Up/KeyDown Triggered Events.

romero126 · Post by **romero126** » Tue Dec 27, 2005 10:53 pm

Are you tired of trying to figure out which key isnt currently being pushed down and keys not being pushed down? To allow for multiple button pressed events? Look no farther! Here is a simple process to add event driven key commands to your LUA code!

Taken from input.lua

Code: Select all

-- Coded by romero126
GlassEyeInput = &#123;
	&#91;"KeyList"&#93; = &#123; &#125;
&#125;

table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.selectMask, "Select", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.startMask, "Start", nil&#125;&#41;

table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.upMask, "Up", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.rightMask, "Right", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.downMask, "Down", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.leftMask, "Left", nil&#125;&#41;

table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.ltriggerMask, "LTrigger", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.rtriggerMask, "RTrigger", nil&#125;&#41;

table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.triangleMask, "Triangle", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.circleMask, "Circle", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.crossMask, "Cross", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.squareMask, "Square", nil&#125;&#41;

table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.homeMask, "Home", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.holdMask, "Hold", nil&#125;&#41;
table.insert&#40;GlassEyeInput&#91;"KeyList"&#93;, &#123;Controls.noteMask, "Note", nil&#125;&#41;

function GlassEyeInput&#58;CheckInput&#40;key&#41;
	result = nil
	for k, v in GlassEyeInput&#91;"KeyList"&#93; do
		if &#40;key&#58;buttons&#40;&#41; & v&#91;1&#93; > 0&#41; then
			if &#40;not v&#91;3&#93;&#41; then
				v&#91;3&#93; = 1
				if &#40;not result&#41; then result = &#123; &#125; end
				result&#91;v&#91;2&#93;&#93; = 1
			end
		else
			if &#40;v&#91;3&#93;&#41; then
				if &#40;not result&#41; then result = &#123; &#125; end
				result&#91;v&#91;2&#93;&#93; = 0
				v&#91;3&#93; = nil
			end
		end
	end
	return result
end

This allows a user to get input from on an event basis.

See:

Code: Select all

-- Coded by romero126
if &#40;GlassEyeInput&#41; then
	local check = GlassEyeInput&#58;CheckInput&#40;key&#41;
	if &#40;check&#41; then
		for k,v in check do
			if &#40;k == "Start"&#41; and &#40;v == 0&#41; then
				print&#40;"You lifted your finger on the start key"&#41;
			end
			if &#40;k == "Start"&#41; and &#40;v == 1&#41; then
				print&#40;"You pressed your finger on the start key"&#41;
			end
		end
	end
end

Please note glass eye is a current project of mine. With standard libraries for an event driven based system.

Please give props to the rightfull owner in your code.

Comments, questions Concerns? Let me know!

modsyn · Post by **modsyn** » Thu Jan 05, 2006 5:20 am

nice! very helpful stuff. i hate writing controls code. this might make it simpler.

romero126 · Post by **romero126** » Thu Jan 05, 2006 7:37 am

Edited because of a bug I noticed.