3damp/mouse.lua at main · immortalx74/3damp · GitHub

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local mouse = {}

e_mouse_state = { pressed = 1, released = 2, held = 3, idle = 4 }

mouse = {
	is_idle = true,
	position = { x = 0, y = 0 },
	left = { prev = false, curr = false, state = 4, start = { x = 0, y = 0 }, delta = { x = 0, y = 0 } },
	right = { prev = false, curr = false, state = 4, start = { x = 0, y = 0 }, delta = { x = 0, y = 0 } },
	middle = { prev = false, curr = false, state = 4, start = { x = 0, y = 0 }, delta = { x = 0, y = 0 } }
}


function mouse.update()
	local x, y = lovr.system.getMousePosition()
	if x == mouse.position.x and y == mouse.position.y then
		mouse.is_idle = true
	else
		mouse.is_idle = false
	end

	mouse.position.x, mouse.position.y = x, y
	local button = { "left", "right", "middle" }
	local buttons_idle = { false, false, false }

	for i = 1, 3 do
		if lovr.system.isMouseDown( i ) then
			if mouse[ button[ i ] ].prev == false then
				mouse[ button[ i ] ].prev = true
				mouse[ button[ i ] ].curr = true
				mouse[ button[ i ] ].state = e_mouse_state.pressed
				mouse[ button[ i ] ].start = { x = mouse.position.x, y = mouse.position.y }
			else
				mouse[ button[ i ] ].prev = true
				mouse[ button[ i ] ].curr = false
				mouse[ button[ i ] ].state = e_mouse_state.held
				mouse[ button[ i ] ].delta = {
					x = (mouse[ button[ i ] ].start.x - mouse.position.x),
					y = (mouse[ button[ i ] ].start.y - mouse.position.y)
				}
			end
			buttons_idle[ i ] = false
		else
			if mouse[ button[ i ] ].prev == true and mouse[ button[ i ] ].curr == false then
				mouse[ button[ i ] ].prev = false
				mouse[ button[ i ] ].state = e_mouse_state.released
				mouse[ button[ i ] ].delta = { x = 0, y = 0 }
			else
				mouse[ button[ i ] ].prev = false
				mouse[ button[ i ] ].curr = false
				mouse[ button[ i ] ].state = e_mouse_state.idle
				buttons_idle[ i ] = true
			end
		end
	end

	if mouse.is_idle then
		for i = 1, 3 do
			if buttons_idle[ i ] == false then
				mouse.is_idle = false
				break
			else
				mouse.is_idle = true
			end
		end
	end
end

return mouse