multiplayer-canvas/server/commands/movement.js

module.exports = class Movement {
	constructor() {
		
	}

	move(player, input) {
		switch(input.action) {
			case "move":
				this.handleMoveDirection(player, input);
			break;
		}
		core.sendUpdateToAll(player);
		return true;
	}

	handleMoveDirection(player, input) {
		switch(input.direction) {
			case "up":
				this.handleUp(player, input);
			break;
			case "down":
				this.handleDown(player, input);
			break;
			case "left":
				this.handleLeft(player, input);
			break;
			case "right":
				this.handleRight(player, input);
			break;
		}
	}

	handleUp(player, input) {
		if(input.hasOwnProperty("start")) {
			player.velocity.y = -1;
		} else {
			player.velocity.y = 0;

		}
	}

	handleDown(player, input) {
		if(input.hasOwnProperty("start")) {
			player.velocity.y = 1;
		} else {
			player.velocity.y = 0;
		}
	}


	handleLeft(player, input) {
		if(input.hasOwnProperty("start")) {
			player.velocity.x = -1;
		} else {
			player.velocity.x = 0;
		}
	}


	handleRight(player, input) {
		if(input.hasOwnProperty("start")) {
			player.sector.x = 1;
		} else {
			player.velocity.x = 0;
		}
	}


	target(player, input) {
		player.moveToTarget = true;
		player.targetDestination = input.position;
		var angle = Math.atan2(input.position.y - player.position.y, input.position.x - player.position.x);
		player.targetAngle = angle;

		if(input.position.x > player.position.x) {
			player.velocity.x = player.maxSpeed * Math.cos(angle);
		}
		if(input.position.x < player.position.x) {
			player.velocity.x = player.maxSpeed * Math.cos(angle);
		}

		if(input.position.y > player.position.y) {
			player.velocity.y = player.maxSpeed * Math.sin(angle);
		}

		if(input.position.y < player.position.y) {
			player.velocity.y = player.maxSpeed * Math.sin(angle);
		}
		core.sendUpdateToAll(player);
		return true;
	}

	getErrorMessage() {
		return "Error in Movement Command";
	}
};