first commit

Actors/Fish.gd

@@ -0,0 +1,152 @@
+extends KinematicBody2D
+
+# external settings
+export var swim_speed: float = 30.0
+export var swim_up_down_variance = 0.75
+
+# variables
+var velocity          = Vector2()
+var dropping         := true
+var turningright     := false
+var turningleft      := false
+var nearest_food     :  Node
+var hungry           := true
+var canseefood		 := false
+
+
+
+
+func _ready() -> void:
+	randomize() # generate random seed to randomize each fish
+
+	# SETTINGS
+	var swim_speed_variance = 0.25
+	
+	# CONNECT SIGNAL
+	var edgeL = get_tree().get_root().find_node("TankEdgeL", true, false)
+	edgeL.connect("edgehit", self, "handle_edgehit")
+	var edgeR = get_tree().get_root().find_node("TankEdgeR", true, false)
+	edgeR.connect("edgehit", self, "handle_edgehit")
+	
+	# ACTUAL CODE
+	swim_speed = swim_speed * (1 + rand_range(-swim_speed_variance, swim_speed_variance)) # give the fish a random speed in range
+	$DropTimer.wait_time = rand_range(0.5,2) # drop the fish to a random depth in range
+	$AnimatedSprite.play()
+	
+	if randf() >= 0.5:
+		$AnimatedSprite.animation = "left"
+	else:
+		$AnimatedSprite.animation = "right"
+
+
+
+
+func handle_edgehit(action: String):
+	if action == "turn right":
+		turningright = true
+	elif action == "turn left":
+		turningleft = true
+
+
+
+
+func _process(delta: float) -> void:
+	#print(velocity)
+	if dropping:
+		velocity = Vector2(0,175)
+
+	if get_tree().get_nodes_in_group("Food").size() > 0:
+		canseefood = true
+		nearest_food = find_nearest_food()
+		# $Line2D.set_point_position(1, nearest_food.get_global_position() - get_global_position())
+	else:
+		canseefood = false
+		
+	if hungry and canseefood:
+		velocity = position.direction_to(nearest_food.get_global_position()) * 100 # idk why i need to x100 this but i do
+
+	# THIS ALWAYS CONTROLS WHERE THE FISH IS MOVING
+	move_and_slide(velocity)
+		
+
+
+
+
+# func _on_Vision_body_entered(body: Node) -> void:
+	
+	# if body.is_in_group("Food"):
+	# 	print("Yummy! I see some food!")
+#	var hungry: bool
+#	var angle_toward_food: float
+
+#	if hungry:
+#		angle_toward_food      = get_angle(me, nearest_food)
+#		natural_movement_angle = random(-15, 15)
+#		natural_movement       = angle_toward_food + natural_movement_angle
+#
+#		random_speed           = random(0, 5) + 3
+#
+#		move_and_slide(vector2(random_speed, natural_movement))
+
+
+func _on_SwimTimer_timeout() -> void:
+	
+	if not canseefood:
+		var direction = randf()
+		var swimdirection = 0
+		if direction >= .75 or turningright:
+			swimdirection = 1
+			$AnimatedSprite.animation = "right"
+			turningright = false
+		if direction <= .25 or turningleft:
+			swimdirection = -1
+			$AnimatedSprite.animation = "left"
+			turningleft = false
+
+		velocity = Vector2(1, rand_range(-swim_up_down_variance, swim_up_down_variance))
+		velocity = velocity * swim_speed * swimdirection
+		# rotate correctly for both directions & sprite animations
+		$AnimatedSprite.rotation = Vector2(0,0).angle_to_point(velocity) + deg2rad(90 * (swimdirection + 1) * swimdirection)
+
+
+
+
+func _on_DropTimer_timeout():
+	dropping = false
+
+
+
+
+# identify and record the nearest food
+func find_nearest_food() -> Node:
+	var all_food = get_tree().get_nodes_in_group("Food")
+	
+	if get_tree().get_nodes_in_group("Food").size() > 0:
+		nearest_food = all_food[0] # assume the first food is closest
+
+		# look through spawn nodes to see if any are closer
+		for food in all_food:
+			if food.global_position.distance_to(global_position) < nearest_food.global_position.distance_to(global_position):
+				nearest_food = food
+				
+		return nearest_food
+	else:
+		return null
+
+
+
+
+func _on_FishHitbox_body_entered(body: Node) -> void:
+	if body.is_in_group("Food") and hungry:
+		body.queue_free()
+		hungry = false
+		$HungerTimer.start()
+
+
+
+
+func _on_HungerTimer_timeout():
+	if hungry:
+		queue_free()
+	else:
+		hungry = true

Actors/Fish.tscn

@@ -0,0 +1,80 @@
+[gd_scene load_steps=7 format=2]
+
+[ext_resource path="res://Actors/Fish.gd" type="Script" id=1]
+[ext_resource path="res://fish.png" type="Texture" id=2]
+[ext_resource path="res://fish2.png" type="Texture" id=3]
+
+[sub_resource type="CapsuleShape2D" id=1]
+radius = 25.4989
+height = 59.0012
+
+[sub_resource type="RectangleShape2D" id=2]
+extents = Vector2( 253, 195 )
+
+[sub_resource type="SpriteFrames" id=3]
+animations = [ {
+"frames": [ ExtResource( 3 ) ],
+"loop": true,
+"name": "left",
+"speed": 5.0
+}, {
+"frames": [ ExtResource( 2 ) ],
+"loop": true,
+"name": "right",
+"speed": 5.0
+} ]
+
+[node name="Fish" type="KinematicBody2D" groups=["Fish"]]
+position = Vector2( 56.4995, 307.501 )
+script = ExtResource( 1 )
+__meta__ = {
+"_edit_group_": true
+}
+swim_speed = 90.0
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+position = Vector2( -1, 0 )
+rotation = 1.5708
+shape = SubResource( 1 )
+
+[node name="Vision" type="Area2D" parent="."]
+
+[node name="VisionRadius" type="CollisionShape2D" parent="Vision"]
+shape = SubResource( 2 )
+
+[node name="SwimTimer" type="Timer" parent="."]
+autostart = true
+
+[node name="DropTimer" type="Timer" parent="."]
+wait_time = 2.0
+one_shot = true
+autostart = true
+
+[node name="HungerTimer" type="Timer" parent="."]
+wait_time = 10.0
+autostart = true
+
+[node name="AnimatedSprite" type="AnimatedSprite" parent="."]
+frames = SubResource( 3 )
+animation = "left"
+
+[node name="FishHitbox" type="Area2D" parent="."]
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="FishHitbox"]
+position = Vector2( -1, 0 )
+rotation = 1.5708
+shape = SubResource( 1 )
+
+[node name="Line2D" type="Line2D" parent="."]
+points = PoolVector2Array( 0, 0, 0, 0 )
+
+[node name="Timer2" type="Timer" parent="."]
+wait_time = 60.0
+one_shot = true
+autostart = true
+
+[connection signal="body_entered" from="Vision" to="." method="_on_Vision_body_entered"]
+[connection signal="timeout" from="SwimTimer" to="." method="_on_SwimTimer_timeout"]
+[connection signal="timeout" from="DropTimer" to="." method="_on_DropTimer_timeout"]
+[connection signal="timeout" from="HungerTimer" to="." method="_on_HungerTimer_timeout"]
+[connection signal="body_entered" from="FishHitbox" to="." method="_on_FishHitbox_body_entered"]