metanohi-misc-subsites/nohix/key_advanced.js

93 lines
2.1 KiB
JavaScript

window.onload = function() {
key_up=false
key_right=false
key_down=false
key_left=false
key_shift=false
key_control=false
key_order=new Array()
for (var i=0;i<4;i++) {
key_order[i]=0
}
document.onkeydown=keydown
document.onkeyup=keyup
}
function getkeycode(e) {
var keycode
if (window.event) keycode=window.event.keyCode
else if (e) keycode=e.which
else keycode=0
return keycode
}
function keydown(e) {
var keycode=getkeycode(e)
if (keycode==38 && !key_up) {
key_up=true
key_order.splice(0,0,1)
key_order.splice(3,1)
}
else if (keycode==39 && !key_right) {
key_right=true
key_order.splice(0,0,2)
key_order.splice(3,1)
}
else if (keycode==40 && !key_down) {
key_down=true
key_order.splice(0,0,3)
key_order.splice(3,1)
}
else if (keycode==37 && !key_left) {
key_left=true
key_order.splice(0,0,4)
key_order.splice(3,1)
}
else if (keycode==16) key_shift=true
else if (keycode==17) key_control=true
if (keycode==38 || keycode==39 || keycode==40 || keycode==37) find_direction()
if (keycode==38 || keycode==39 || keycode==40 || keycode==37 || keycode==16) get_col_length()
}
function keyup(e) {
var keycode=getkeycode(e)
if (keycode==38 && key_up) {
key_up=false
for (var i=0;i<4;i++) {
if (key_order[i]==1) key_order.splice(i,1)
}
key_order.splice(3,0,0)
}
else if (keycode==39 && key_right) {
key_right=false
for (var i=0;i<4;i++) {
if (key_order[i]==2) key_order.splice(i,1)
}
key_order.splice(3,0,0)
}
else if (keycode==40 && key_down) {
key_down=false
for (var i=0;i<4;i++) {
if (key_order[i]==3) key_order.splice(i,1)
}
key_order.splice(3,0,0)
}
else if (keycode==37 && key_left) {
key_left=false
for (var i=0;i<4;i++) {
if (key_order[i]==4) key_order.splice(i,1)
}
key_order.splice(3,0,0)
}
else if (keycode==16) key_shift=false
else if (keycode==17) key_control=false
if (key_order[0]>0 && (keycode==38 || keycode==39 || keycode==40 || keycode==37)) find_direction()
if (keycode==38 || keycode==39 || keycode==40 || keycode==37 || keycode==16) get_col_length()
}