Crosshair now snaps into place

godot_ship/scenes/Gameplay.tscn

@@ -124,7 +124,18 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="AcceptDialog" type="AcceptDialog" parent="."]
+[node name="Fire" type="Button" parent="."]
+visible = false
+margin_left = 443.545
+margin_top = 264.473
+margin_right = 528.545
+margin_bottom = 318.473
+text = "FIRE"
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="PlaceShipDialog" type="AcceptDialog" parent="."]
 anchor_left = 0.5
 anchor_top = 0.5
 anchor_right = 0.5
@@ -138,19 +149,15 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Fire" type="Button" parent="."]
-visible = false
-margin_left = 443.545
-margin_top = 264.473
-margin_right = 528.545
-margin_bottom = 318.473
-text = "FIRE"
-__meta__ = {
-"_edit_use_anchors_": false
-}
+[node name="FireDialog" type="AcceptDialog" parent="."]
+pause_mode = 2
+margin_right = 83.0
+margin_bottom = 58.0
+dialog_text = "You can't fire outside the board"
 
 [connection signal="pressed" from="VBoxContainer/Forfeit" to="." method="_on_Forfeit_pressed"]
 [connection signal="about_to_show" from="ConfirmationDialog" to="." method="_on_ConfirmationDialog_about_to_show"]
 [connection signal="pressed" from="Confirm Placement" to="." method="_on_Confirm_Placement_pressed"]
 [connection signal="pressed" from="Clear" to="." method="_on_Clear_pressed"]
 [connection signal="pressed" from="Fire" to="." method="_on_Fire_pressed"]
+[connection signal="confirmed" from="FireDialog" to="." method="_on_FireDialog_confirmed"]

godot_ship/script/game/Gameplay.gd

@@ -29,7 +29,7 @@ func _on_Confirm_Placement_pressed():
 			valid = false
 	print ("Placement: ", valid)
 	if valid == false:
-		get_node("AcceptDialog").popup()
+		get_node("PlaceShipDialog").popup()
 	else:
 		#Saves the location of ships and length of ship into an array
 		var shipLocation = []
@@ -75,5 +75,17 @@ func _on_Clear_pressed():
 
 func _on_Fire_pressed():
 	var crosshair = get_node("Crosshair")
-	print("Fire at position: ", crosshair.position)
+	# hides crosshair
+	crosshair.visible = false
+	if crosshair.validate_position(crosshair.position) == true:
+		# fires at position
+		print("Fire at position: ", crosshair.position)
+	else:
+		#if invalid position popup appears
+		var dialog = get_node("FireDialog")
+		dialog.popup_centered()
+	pass # Replace with function body.
+
+func _on_FireDialog_confirmed():
+	get_node("Crosshair").visible = true
 	pass # Replace with function body.

godot_ship/script/game/Gameplay/Crosshair.gd

@@ -16,14 +16,44 @@ func _physics_process(delta):
 		position += (get_global_mouse_position() - position)/10
 
 func _input(event):
-	#Check if left click is being clicked and the sprite is visible (i.e only checks for inputs after ship positions are confirmed)
+	# Check if left click is being clicked and the sprite is visible (i.e only checks for inputs after ship positions are confirmed)
 	if event is InputEventMouseButton and event.button_index == BUTTON_LEFT and visible == true:
-		#Locks the position of the crosshair with left click
-		snapped = true
+		# Locks the position of the crosshair with left click
+		if validate_position(position) == true:
+			# rounds the board position to the nearest integer
+			snapped = true
+			position.x = int(round(world_to_board_space(position).x))
+			position.y = int(round(world_to_board_space(position).y))
+			position = board_to_world_space(position)
+	# Check if left click is being clicked and the sprite is visible (i.e only checks for inputs after ship positions are confirmed)
 	if event is InputEventMouseButton and event.button_index == BUTTON_RIGHT and visible == true:
-		#Unlocks the position of the crosshair with right click
+		# Unlocks the position of the crosshair with right click
 		snapped = false
 
+func validate_position(vector):
+	# rounds the board position to the nearest integer
+	var boardx = int(round(world_to_board_space(vector).x))
+	var boardy = int(round(world_to_board_space(vector).y))
+	# Checks if the board position is within bounds of the board
+	if boardx < 11 and boardx > 0 and boardy < 11 and boardy > 0:
+		# changes the position of the crosshair
+		return true
+	else:
+		# unlocks the crosshair if not within bounds
+		return false
+
+# Convert the world-space coordinates to positions on the board
+func world_to_board_space(vector):
+	# Do math
+	var res = (vector - offset) / 32 # Basically Fahrenheit/Celcius conversion, but in 2D
+	return res
+
+# Inverse of the above function.
+func board_to_world_space(vector):
+	# Do math
+	var res = (vector * 32) + offset #Invert the above function
+	return res #Truncate decimals
+
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 #func _process(delta):
 #	pass