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