add start of ship controls

public/js/starbugs/input.js

@@ -0,0 +1,62 @@
+function Input() {
+	this.mouse = {
+		x: 0,
+		y: 0,
+		held: {},
+		pressed: {}
+	};
+	this.keys = {
+		held: {},
+		pressed: {}
+	};
+
+	this.mouseMove = function (el) {
+		return function (event) {
+			var rect = game.renderer.canvas.getBoundingClientRect();
+			el.mouse.x = event.clientX - rect.left;
+			el.mouse.y = event.clientY - rect.top;
+		}
+	};
+
+	this.mouseDown = function (el) {
+		return function (event) {
+			el.mouse.pressed[event.which] = true;
+			el.mouse.held[event.which] = true;
+		}
+	};
+
+	this.mouseUp = function (el) {
+		return function (event) {
+			el.mouse.held[event.which] = false;
+		}
+	}
+
+	this.keyDown = function (el) {
+		return function (event) {
+			if (!el.keys.held[event.which]) el.keys.pressed[event.which] = true;
+			el.keys.held[event.which] = true;
+		}
+	}
+
+	this.keyUp = function (el) {
+		return function (event) {
+			el.keys.held[event.which] = false;
+		}
+	}
+
+	document.addEventListener('mousemove', this.mouseMove(this));
+	document.addEventListener('mousedown', this.mouseDown(this));
+	document.addEventListener('mouseup', this.mouseUp(this));
+	document.addEventListener('keydown', this.keyDown(this));
+	document.addEventListener('keyup', this.keyUp(this));
+
+	this.mouseAnyPressed = function () {
+		var p = this.mouse.pressed;
+		return p[1] || p[2] || p[3];
+	}
+
+	this.clear = function () {
+		for (var i in this.keys.pressed) this.keys.pressed[i] = false;
+		for (var i in this.mouse.pressed) this.mouse.pressed[i] = false;
+	};
+}