John Bura - Build a Super Mario Runner game

In this section, we will process the collision between Player and SpeedArea or SpeedArea (1). Open Player.cs. Create the following private Boolean variables to represent when Player touches SpeedArea and SpeedArea (1). void OnTriggerEnter (Collider otherCollider) { _____ if (otherCollider.transform.GetComponent() != null) { _____ _____ Destroy (otherCollider.gameObject); _____ _____ onCollectCoin (); _____ } _____ if (otherCollider.GetComponent () != null) { _____ } } Assign the variable speedArea to return the component Player collides with. _____ if (otherCollider.GetComponent () != null) { _____ _____ SpeedArea speedArea = _____ _____ _____ otherCollider.GetComponent (); _____ } Create a nested if block to run code if the speed area's Direction value is Left. _____ if (otherCollider.GetComponent () != null) { _____ _____ SpeedArea speedArea = _____ _____ _____ otherCollider.GetComponent (); _____ } Create a nested if block to run code if the speed area's Direction value is Left.

In this case, Player touched a left-pointing arrow. _____ if (otherCollider.GetComponent () != null) { _____ _____ SpeedArea speedArea = _____ _____ _____ otherCollider.GetComponent (); _____ _____ if (speedArea.direction == Direction.Left) { _____ _____ } _____ } If the condition passes, set onSpeedAreaLeft to true because Player touched a Left speed area. _____ if (otherCollider.GetComponent () != null) { _____ _____ SpeedArea speedArea = _____ _____ _____ otherCollider.GetComponent (); _____ _____ if (speedArea.direction == Direction.Left) { _____ _____ _____ onSpeedAreaLeft = true; _____ _____ } _____ } Add an else if block to run code if the speed area's Direction value is Right. In this case, Player touched a right-pointing arrow. Set onSpeedAreaRight to true because Player touched a Right speed area. _____ if (otherCollider.GetComponent () != null) { _____ _____ SpeedArea speedArea = _____ _____ _____ otherCollider.GetComponent (); _____ _____ if (speedArea.direction == Direction.Left) { _____ _____ _____ onSpeedAreaLeft = true; _____ _____ } else if (speedArea.direction == Direction.Right) { _____ _____ _____ onSpeedAreaRight = true; _____ _____ } _____ } Thus the Boolean variables will inform the compiler whether Player should move slower or faster.

Copy the if block that runs code when Player collides with a SpeedArea. Paste the code into OnTriggerExit. void OnTriggerExit (Collider otherCollider) { _____ if (otherCollider.tag == "WallJumpingArea") { _____ _____ canWallJump = false; _____ } _____ if (otherCollider.GetComponent () != null) { _____ _____ SpeedArea speedArea = _____ _____ _____ otherCollider.GetComponent (); _____ _____ if (speedArea.direction == Direction.Left) { _____ _____ _____ onSpeedAreaLeft = true; _____ _____ } else if (speedArea.direction == Direction.Right) { _____ _____ _____ onSpeedAreaRight = true; _____ _____ } _____ } } Change the values of onSpeedAreaLeft and OnSpeedAreaRight to false because OnTriggerExit runs code when Player stops colliding with a SpeedArea. void OnTriggerExit (Collider otherCollider) { _____ if (otherCollider.tag == "WallJumpingArea") { _____ _____ canWallJump = false; _____ } _____ if (otherCollider.GetComponent () != null) { _____ _____ SpeedArea speedArea = _____ _____ _____ otherCollider.GetComponent (); _____ _____ if (speedArea.direction == Direction.Left) { _____ _____ _____ onSpeedAreaLeft = false; _____ _____ } else if (speedArea.direction == Direction.Right) { _____ _____ _____ onSpeedAreaRight = false; _____ _____ } _____ } } We can continuosly check the values of onSpeedAreaLeft and onSpeedAreaRight in the Update method. In Update, call the Log method to print the values in the following format. void Update () { _____ Debug.Log ("Speed left: " + onSpeedAreaLeft + "; Speed right: " + _____ _____ onSpeedAreaRight); _____ } Save the script, and open Unity.

Press Play. To view the game one frame at a time, press Pause. Then press the rightmost button of the 3 above the Viewport. While Player is not touching the arrows, the Console will print "Speed left: False; Speed right: False". When Player touches a SpeedArea, the Console will print a message to inform you which SpeedArea the player is touching.