1 files changed, 46 insertions, 0 deletions
diff --git a/js/keyboard.js b/js/keyboard.js
new file mode 100644
index 0000000..73594d5
--- /dev/null
+++ b/js/keyboard.js
@@ -0,0 +1,46 @@
+
+function Keyboard() {
+    this.keys = {KEY_A: 0, KEY_B: 1, KEY_SELECT: 2, KEY_START: 3, KEY_UP: 4, KEY_DOWN: 5, KEY_LEFT: 6, KEY_RIGHT: 7};
+    
+    this.state1 = Array(8);
+    for (var i = 0; i < this.state1.length; i++) this.state1[i] = 0x40;
+    this.state2 = Array(8);
+    for (var i = 0; i < this.state2.length; i++) this.state2[i] = 0x40;
+}
+
+Keyboard.prototype.setKey = function(key, value) {
+    switch (key) {
+	    case 88: this.state1[this.keys.KEY_A] = value; break;      // X
+	    case 90: this.state1[this.keys.KEY_B] = value; break;      // Z
+	    case 17: this.state1[this.keys.KEY_SELECT] = value; break; // Right Ctrl
+	    case 13: this.state1[this.keys.KEY_START] = value; break;  // Enter
+	    case 38: this.state1[this.keys.KEY_UP] = value; break;     // Up
+	    case 40: this.state1[this.keys.KEY_DOWN] = value; break;   // Down
+	    case 37: this.state1[this.keys.KEY_LEFT] = value; break;   // Left
+	    case 39: this.state1[this.keys.KEY_RIGHT] = value; break;  // Right
+
+	    case 103: this.state2[this.keys.KEY_A] = value; break;     // Num-7
+	    case 105: this.state2[this.keys.KEY_B] = value; break;     // Num-9
+	    case 99: this.state2[this.keys.KEY_SELECT] = value; break; // Num-3
+	    case 97: this.state2[this.keys.KEY_START] = value; break;  // Num-1
+	    case 104: this.state2[this.keys.KEY_UP] = value; break;    // Num-8
+	    case 98: this.state2[this.keys.KEY_DOWN] = value; break;   // Num-2
+	    case 100: this.state2[this.keys.KEY_LEFT] = value; break;  // Num-4
+	    case 102: this.state2[this.keys.KEY_RIGHT] = value; break; // Num-6
+	    default: return true;
+	}
+	return false; // preventDefault
+}
+
+Keyboard.prototype.keyDown = function(evt) {
+	if (!this.setKey(evt.keyCode, 0x41) && evt.preventDefault)
+	    evt.preventDefault();
+}
+Keyboard.prototype.keyUp = function(evt) {
+	if (!this.setKey(evt.keyCode, 0x40) && evt.preventDefault)
+	    evt.preventDefault();
+}
+
+var keyboard = new Keyboard();
+document.onkeydown = function(evt) {keyboard.keyDown(evt)}
+document.onkeyup = function(evt) {keyboard.keyUp(evt)}