1 files changed, 84 insertions, 0 deletions
diff --git a/Racing-Game/4WheelCar/Wheels/FrontWheel.gd b/Racing-Game/4WheelCar/Wheels/FrontWheel.gd
new file mode 100644
index 0000000..7a05522
--- /dev/null
+++ b/Racing-Game/4WheelCar/Wheels/FrontWheel.gd
@@ -0,0 +1,84 @@
+extends "res://4WheelCar/Wheels/Wheel.gd"
+
+#Reduces steering strength when braking
+var steerDamp = 1
+
+#Steering Curve Vars
+var steerSplitA = 20
+var steerSplitB = 40
+var steerHeight = 2.6
+var steerLimit = 73
+var steerMinimum = 1
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	#Variable Update
+	#---null_slide vars
+	nullStrength = 0
+	velocity = measure_velocity()
+	velVector = get_node("../../../CarBody").get_linear_velocity()
+	carAngle = get_node("../../../CarBody").get_transform().get_rotation()
+	#---Steering Vars
+	velAngle = atan2(velVector.y,velVector.x)
+	isForward = is_forward()
+	#---
+	set_rotation(carAngle)
+	
+	isSkid = Input.is_action_pressed("grip")
+	
+	#Determines if drifting
+	if Input.is_action_pressed("grip") || Input.is_action_pressed("brake"):
+		nullStrength += max(5,velocity/7)
+	else:
+		nullStrength += 1
+	
+	#Braking
+	setBrake(0)
+	null_slide(nullStrength,delta)
+	
+	#Steering
+	if Input.is_action_pressed("steer_left"):
+		apply_central_impulse(steerDamp*Vector2(0,steer_curve(steerSplitA, steerSplitB, steerHeight, steerLimit,steerMinimum)).rotated(steer_angle())*delta*5000)
+	if Input.is_action_pressed("steer_right"):
+		apply_central_impulse(steerDamp*Vector2(0,-steer_curve(steerSplitA, steerSplitB, steerHeight, steerLimit,steerMinimum)).rotated(steer_angle())*delta*5000)
+
+#returns the angle the car is facing, relative to the direction it is moving
+func steer_angle():
+	if isForward:
+		return carAngle + (PI/2.0)
+	else:
+		return carAngle - (PI/2.0)
+
+#Determines strength of steering as a function of the speed
+func steer_curve(var splitA, splitB, var height, var limit, var minimum):
+	#Rules:
+	# splitA < splitB < limit
+	# height > 0, limit >= 0
+	# ---
+	#Desmos: SteerCurve
+	#Link: https://www.desmos.com/calculator/jkrd8zzoj9
+	# splitA = a
+	# splitB = b
+	# height = h
+	# limit = f
+	#note: minimum is not in the graph, it is simply the minimum y value you want when x > splitB
+	# ---
+	if(velocity >= splitB):
+		return max((-pow((velocity-splitB)/((limit-splitB)/sqrt(height)),2)+height)*abs(cos(abs(velAngle-carAngle)+PI/2)),minimum)
+	elif velocity >= splitA:
+		return height
+	else:
+		return max((-pow((velocity/(splitA/sqrt(height)))-sqrt(height),2)+height)*abs(cos(abs(velAngle-carAngle)+PI/2)),0)
+
+func is_forward():
+	var carVector = Vector2(cos(carAngle + PI/2),sin(carAngle + PI/2))
+	if velVector == Vector2(0,0) || carVector == Vector2(0,0):
+		return true
+	if velVector.dot(carVector) <= 0:
+		return true
+	else:
+		return false