add some enemy behavior prototypes

godot/characters/enemies/WalkingEnemy.gd

@@ -0,0 +1,38 @@
+extends KinematicBody2D
+
+
+signal player_touched
+
+
+var velocity = Vector2()
+export var direction = -1
+export var detect_edges = true
+export var speed = 25
+export var gravity = 9.8
+
+
+func _ready() -> void:
+	if direction == 1:
+		$AnimatedSprite.flip_h = true
+	$FloorChecker.position.x = $CollisionShape2D.shape.get_extents().x * direction
+	$FloorChecker.enabled = detect_edges
+
+
+func _physics_process(_delta: float) -> void:
+	if is_on_wall() or not $FloorChecker.is_colliding() and is_on_floor() and $FloorChecker.enabled:
+		direction *= -1
+		$AnimatedSprite.flip_h = not $AnimatedSprite.flip_h
+		$FloorChecker.position.x = $CollisionShape2D.shape.get_extents().x * direction
+
+	velocity.y += gravity
+	velocity.x = speed * direction
+	velocity = move_and_slide(velocity, Vector2.UP)
+
+	for i in get_slide_count():
+		var collision = get_slide_collision(i)
+		if collision.collider.name == "Player":
+			emit_signal("player_touched")
+
+
+func squash() -> void:
+	queue_free()

godot/characters/enemies/blightwing/Blightwing.gd

@@ -0,0 +1,27 @@
+extends KinematicBody2D
+
+
+# Declare member variables here. Examples:
+# var a: int = 2
+# var b: String = "text"
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _physics_process(delta: float) -> void:
+	var velocity = Vector2()
+	velocity.x += 1 * 50
+	#velocity.y -= 1 * 50
+	velocity = move_and_slide(velocity, Vector2(0, 0), true, 2)
+	for i in get_slide_count():
+		var collision = get_slide_collision(i)
+		#if collision.collider.name == "Player":
+		#	print("Blightwing: " + String(OS.get_unix_time()) + " " + collision.collider.name)
+
+
+func _on_Area2D_body_entered(body: Node) -> void:
+	print(body.name)

godot/characters/enemies/blightwing/Blightwing.tscn

@@ -25,14 +25,13 @@ animations = [ {
 [sub_resource type="RectangleShape2D" id=5]
 extents = Vector2( 5, 5 )
 
-[node name="Blightwing" type="KinematicBody2D"]
+[node name="Blightwing" type="KinematicBody2D" groups=["enemy"]]
 collision_layer = 8
 collision_mask = 11
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
 frames = SubResource( 4 )
 animation = "fly"
-frame = 1
 playing = true
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]

godot/characters/enemies/blockface/Blockface.gd

@@ -0,0 +1,27 @@
+extends KinematicBody2D
+
+
+signal player_touched
+
+
+onready var start_position = position
+var velocity = Vector2()
+export var speed = 50.0
+export var fall_speed = 75.0
+var return_to_start: bool = false
+
+
+func _physics_process(delta: float) -> void:
+	if return_to_start:
+		position = position.move_toward(start_position, speed * delta)
+	else:
+		var collision = move_and_collide(Vector2(0, (position.y + fall_speed) * delta))
+		if collision:
+			return_to_start = true
+			$AnimatedSprite.play("normal")
+			if collision.collider.name == "Player":
+				emit_signal("player_touched")
+
+	if position.y <= start_position.y:
+		return_to_start = false
+		$AnimatedSprite.play("angry")

godot/characters/enemies/blockface/Blockface.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=6 format=2]
+[gd_scene load_steps=7 format=2]
 
 [ext_resource path="res://assets/characters/characters.png" type="Texture" id=1]
+[ext_resource path="res://characters/enemies/blockface/Blockface.gd" type="Script" id=2]
 
 [sub_resource type="AtlasTexture" id=1]
 atlas = ExtResource( 1 )
@@ -26,9 +27,10 @@ animations = [ {
 [sub_resource type="RectangleShape2D" id=4]
 extents = Vector2( 9, 9 )
 
-[node name="Blockface" type="KinematicBody2D"]
+[node name="Blockface" type="KinematicBody2D" groups=["enemy", "rideable"]]
 collision_layer = 8
 collision_mask = 11
+script = ExtResource( 2 )
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
 frames = SubResource( 3 )

godot/characters/enemies/dreadtooth/Dreadtooth.gd

@@ -0,0 +1 @@
+extends "res://characters/enemies/WalkingEnemy.gd"

godot/characters/enemies/dreadtooth/Dreadtooth.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=7 format=2]
+[gd_scene load_steps=8 format=2]
 
 [ext_resource path="res://assets/characters/characters.png" type="Texture" id=1]
+[ext_resource path="res://characters/enemies/dreadtooth/Dreadtooth.gd" type="Script" id=2]
 
 [sub_resource type="AtlasTexture" id=1]
 atlas = ExtResource( 1 )
@@ -28,17 +29,26 @@ animations = [ {
 } ]
 
 [sub_resource type="RectangleShape2D" id=5]
-extents = Vector2( 7.5, 8.5 )
+extents = Vector2( 7.5, 6.5 )
 
-[node name="Dreadtooth" type="KinematicBody2D"]
+[node name="Dreadtooth" type="KinematicBody2D" groups=["enemy"]]
 collision_layer = 8
 collision_mask = 11
+script = ExtResource( 2 )
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
 frames = SubResource( 4 )
 animation = "walk"
-playing = true
+frame = 1
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
-position = Vector2( -0.5, 3.5 )
+position = Vector2( -0.5, 5.5 )
 shape = SubResource( 5 )
+
+[node name="CollisionPolygon2D" type="CollisionPolygon2D" parent="."]
+polygon = PoolVector2Array( 0, -7, 3, -4, 3, -1, -4, -1, -4, -4, -1, -7 )
+
+[node name="FloorChecker" type="RayCast2D" parent="."]
+enabled = true
+cast_to = Vector2( 0, 20 )
+collision_mask = 10

godot/characters/enemies/gravevine/Gravevine.tscn

@@ -21,12 +21,13 @@ animations = [ {
 [sub_resource type="RectangleShape2D" id=4]
 extents = Vector2( 5.5, 7.5 )
 
-[node name="Gravevine" type="KinematicBody2D"]
+[node name="Gravevine" type="KinematicBody2D" groups=["enemy"]]
 collision_layer = 8
 collision_mask = 11
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
 frames = SubResource( 3 )
+frame = 1
 playing = true
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]

godot/characters/enemies/shelly/Shelly.gd

@@ -0,0 +1 @@
+extends "res://characters/enemies/WalkingEnemy.gd"

godot/characters/enemies/shelly/Shelly.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=7 format=2]
+[gd_scene load_steps=8 format=2]
 
 [ext_resource path="res://assets/characters/characters.png" type="Texture" id=1]
+[ext_resource path="res://characters/enemies/shelly/Shelly.gd" type="Script" id=2]
 
 [sub_resource type="AtlasTexture" id=1]
 atlas = ExtResource( 1 )
@@ -28,11 +29,12 @@ animations = [ {
 } ]
 
 [sub_resource type="RectangleShape2D" id=5]
-extents = Vector2( 7.5, 7 )
+extents = Vector2( 7.5, 6.5 )
 
-[node name="Shelly" type="KinematicBody2D"]
+[node name="Shelly" type="KinematicBody2D" groups=["enemy", "squashable"]]
 collision_layer = 8
 collision_mask = 11
+script = ExtResource( 2 )
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
 frames = SubResource( 4 )
@@ -40,5 +42,10 @@ animation = "walk"
 playing = true
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
-position = Vector2( 1, 5 )
+position = Vector2( 1, 5.5 )
 shape = SubResource( 5 )
+
+[node name="FloorChecker" type="RayCast2D" parent="."]
+enabled = true
+cast_to = Vector2( 0, 20 )
+collision_mask = 10

godot/characters/enemies/spikeball/Spikeball.tscn

@@ -17,7 +17,7 @@ animations = [ {
 [sub_resource type="CircleShape2D" id=3]
 radius = 9.05539
 
-[node name="Spikeball" type="KinematicBody2D"]
+[node name="Spikeball" type="KinematicBody2D" groups=["enemy"]]
 collision_layer = 8
 collision_mask = 11
 

godot/characters/enemies/super_shelly/SuperShelly.gd

@@ -0,0 +1 @@
+extends "res://characters/enemies/WalkingEnemy.gd"

godot/characters/enemies/super_shelly/SuperShelly.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=7 format=2]
+[gd_scene load_steps=8 format=2]
 
 [ext_resource path="res://assets/characters/characters.png" type="Texture" id=1]
+[ext_resource path="res://characters/enemies/super_shelly/SuperShelly.gd" type="Script" id=2]
 
 [sub_resource type="AtlasTexture" id=1]
 atlas = ExtResource( 1 )
@@ -28,11 +29,12 @@ animations = [ {
 } ]
 
 [sub_resource type="RectangleShape2D" id=5]
-extents = Vector2( 12, 11 )
+extents = Vector2( 12, 10.5 )
 
-[node name="SuperShelly" type="KinematicBody2D"]
+[node name="SuperShelly" type="KinematicBody2D" groups=["enemy", "squashable"]]
 collision_layer = 8
 collision_mask = 11
+script = ExtResource( 2 )
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
 frames = SubResource( 4 )
@@ -41,5 +43,10 @@ frame = 1
 playing = true
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
-position = Vector2( 0, 1 )
+position = Vector2( 0, 1.5 )
 shape = SubResource( 5 )
+
+[node name="FloorChecker" type="RayCast2D" parent="."]
+enabled = true
+cast_to = Vector2( 0, 20 )
+collision_mask = 10

godot/characters/player/Player.tscn

@@ -9,10 +9,10 @@
 [ext_resource path="res://characters/player/states/Fall.gdns" type="Script" id=7]
 
 [sub_resource type="RectangleShape2D" id=1]
-extents = Vector2( 7, 12 )
+extents = Vector2( 6.5, 11.5 )
 
 [node name="Player" type="KinematicBody2D"]
-collision_mask = 2
+collision_mask = 10
 script = ExtResource( 5 )
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
@@ -22,7 +22,7 @@ centered = false
 flip_h = true
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
-position = Vector2( 12, 12 )
+position = Vector2( 12.5, 12.5 )
 shape = SubResource( 1 )
 
 [node name="StateMachine" type="Node" parent="."]
@@ -40,3 +40,9 @@ script = ExtResource( 6 )
 
 [node name="Fall" type="Node" parent="StateMachine"]
 script = ExtResource( 7 )
+
+[node name="PlatformDetector" type="RayCast2D" parent="."]
+position = Vector2( 12, 0 )
+enabled = true
+cast_to = Vector2( 0, 32 )
+collision_mask = 24

godot/levels/PrototypeEnemies.tmx

@@ -22,16 +22,16 @@
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-0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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godot/levels/PrototypeEnemies.tmx.import

@@ -13,9 +13,9 @@ dest_files=[ "res://.import/PrototypeEnemies.tmx-5728a1d35b5e3ba88a2df2406b1cd93
 
 custom_properties=true
 tile_metadata=false
-uv_clip=true
+uv_clip=false
 y_sort=false
-image_flags=7
+image_flags=0
 collision_layer=2
 collision_mask=0
 embed_internal_images=false

godot/levels/PrototypeEnemies.tscn

@@ -15,7 +15,8 @@
 [node name="PrototypeEnemies" type="Node"]
 
 [node name="Player" parent="." instance=ExtResource( 2 )]
-position = Vector2( 80, 488 )
+position = Vector2( 156, 438 )
+collision/safe_margin = 0.12
 
 [node name="Camera2D" type="Camera2D" parent="Player"]
 current = true
@@ -49,6 +50,7 @@ centered = false
 script = ExtResource( 1 )
 
 [node name="Enemies" type="Node" parent="."]
+unique_name_in_owner = true
 
 [node name="Spikeball" parent="Enemies" instance=ExtResource( 8 )]
 position = Vector2( 106, 547 )
@@ -57,16 +59,25 @@ position = Vector2( 106, 547 )
 position = Vector2( 92, 516 )
 
 [node name="Blockface" parent="Enemies" instance=ExtResource( 10 )]
-position = Vector2( 169, 518 )
+position = Vector2( 206, 404 )
 
 [node name="Dreadtooth" parent="Enemies" instance=ExtResource( 6 )]
-position = Vector2( 212, 546 )
+position = Vector2( 316, 379 )
+
+[node name="Dreadtooth2" parent="Enemies" instance=ExtResource( 6 )]
+position = Vector2( 350, 263 )
+direction = 1
+detect_edges = false
 
 [node name="Gravevine" parent="Enemies" instance=ExtResource( 5 )]
 position = Vector2( 250, 550 )
 
 [node name="Shelly" parent="Enemies" instance=ExtResource( 9 )]
-position = Vector2( 138, 546 )
+position = Vector2( 247, 439 )
 
 [node name="SuperShelly" parent="Enemies" instance=ExtResource( 7 )]
 position = Vector2( 62, 546 )
+
+[connection signal="player_touched" from="Enemies/Blockface" to="Player" method="_on_player_touched"]
+[connection signal="player_touched" from="Enemies/Shelly" to="Player" method="_on_player_touched"]
+[connection signal="player_touched" from="Enemies/SuperShelly" to="Player" method="_on_player_touched"]

godot/project.godot

@@ -101,6 +101,7 @@ Send={
 2d_physics/layer_1="Player"
 2d_physics/layer_2="Tiles"
 2d_physics/layer_4="Enemies"
+2d_physics/layer_5="Platforms"
 
 [physics]
 

src/player/Player.cpp

@@ -6,6 +6,8 @@
 #include <SceneTree.hpp>
 #include <Texture.hpp>
 #include <Viewport.hpp>
+#include <RayCast2D.hpp>
+#include <KinematicCollision2D.hpp>
 
 using namespace godot;
 using namespace player;
@@ -16,9 +18,11 @@ void Player::_register_methods()
     register_method("_physics_process", &Player::_physics_process);
     register_method("set_velocity", &Player::set_velocity);
     register_method("get_velocity", &Player::get_velocity);
+    register_method("_on_player_touched", &Player::_on_player_touched);
     //register_property<Player, Ref<SpriteFrames>>("sprite_frames", &Player::set_sprite_frames, &Player::get_sprite_frames, Ref<SpriteFrames>(), GODOT_METHOD_RPC_MODE_DISABLED, GODOT_PROPERTY_USAGE_DEFAULT, GODOT_PROPERTY_HINT_RESOURCE_TYPE, String("SpriteFrames"));
     register_property<Player, float>("speed", &Player::set_speed, &Player::get_speed, player::speed);
     register_property<Player, float>("jump_force", &Player::set_jump_force, &Player::get_jump_force, player::jump_force);
+    register_property<Player, float>("bounce_force", &Player::set_bounce_force, &Player::get_bounce_force, player::bounce_force);
     register_property<Player, float>("gravity", &Player::set_gravity, &Player::get_gravity, player::gravity);
     register_property<Player, float>("run_speed", &Player::set_run_speed, &Player::get_run_speed, player::run_speed);
     register_property<Player, bool>("double_jump", &Player::set_double_jump, &Player::get_double_jump, player::double_jump);
@@ -42,6 +46,7 @@ void Player::_init()
     //sprite_frames = _resource_loader->load(player::sprite_frames);
     set_speed(player::speed);
     set_jump_force(player::jump_force);
+    set_bounce_force(player::bounce_force);
     set_gravity(player::gravity);
     set_run_speed(player::run_speed);
     set_double_jump(player::double_jump);
@@ -73,7 +78,7 @@ void Player::_ready()
         WARN_PRINT("Middleground not found!");
     }
 
-    auto object_node = get_tree()->get_root()->get_node("Main")->find_node("Monitor");
+    auto object_node = get_tree()->get_root()->get_node("Main")->find_node("Monitor", true);
     if (object_node != nullptr)
     {
         auto state = get_node("StateMachine")->get_child(0);
@@ -99,9 +104,54 @@ void Player::_physics_process(float delta)
 {
     velocity.y += get_gravity();
 
-    velocity = move_and_slide(velocity, Vector2::UP, true);
+    auto snap_vector = Vector2::ZERO;
+    if (!is_on_floor())
+    {
+        snap_vector = Vector2::DOWN * 20.0;
+    }
+
+    auto platform_detector = get_node<RayCast2D>("PlatformDetector");
+    auto is_on_platform = platform_detector->is_colliding();
+
+    velocity = move_and_slide_with_snap(velocity, snap_vector, Vector2::UP, !is_on_platform, 4, 0.9, false);
+    //velocity = move_and_slide(velocity, Vector2::UP, !is_on_platform);
     velocity.x = Math::lerp((float) velocity.x, (float) 0, (float) 0.2);
 
+    auto count = get_slide_count();
+    for (int64_t i = 0; i < count; i++)
+    {
+        auto collision = get_slide_collision(i);
+        auto collision_object = collision->get_collider();
+        auto collider = Object::cast_to<Node>(collision_object);
+        if (collider->is_in_group("squashable") && Vector2::UP.dot(collision->get_normal()) > 0.1)
+        {
+            collider->call_deferred("squash");
+            /*auto dup_node = collider->duplicate();
+            auto dup = Object::cast_to<KinematicBody2D>(dup_node);
+            auto dup_pos = dup->get_position();
+            dup_pos.x += 24;
+            dup->set_position(dup_pos);
+            auto enemies = get_tree()->get_root()->get_node("Main")->find_node("Enemies", true, false);
+            if (enemies != nullptr) {
+                enemies->add_child(dup);
+            }
+            else
+            {
+                WARN_PRINT("Enemies not found!");
+                dup->queue_free();
+            }*/
+            velocity.y = -get_bounce_force();
+        }
+        else if (collider->is_in_group("enemy") && (collider->is_in_group("rideable") && Vector2::DOWN.dot(collision->get_normal()) > 0.1))
+        {
+            _on_player_touched();
+        }
+        else if (collider->is_in_group("enemy") && !collider->is_in_group("rideable"))
+        {
+            _on_player_touched();
+        }
+    }
+
     // Clamp the player's position inside the camera's limits
     auto camera = get_node<Camera2D>("Camera2D");
     auto position = get_global_position();
@@ -176,6 +226,16 @@ float Player::get_jump_force()
     return this->jump_force;
 }
 
+void Player::set_bounce_force(float bounce_force)
+{
+    this->bounce_force = bounce_force;
+}
+
+float Player::get_bounce_force()
+{
+    return this->bounce_force;
+}
+
 void Player::set_gravity(float gravity)
 {
     this->gravity = gravity;
@@ -215,3 +275,12 @@ Vector2 Player::get_velocity()
 {
     return this->velocity;
 }
+
+void Player::_on_player_touched()
+{
+    auto error = get_tree()->change_scene("res://Main.tscn");
+    if (error != Error::OK)
+    {
+        ERR_PRINT(String().num((int) error) + " Could not load scene!");
+    }
+}

src/player/Player.h

@@ -31,6 +31,11 @@ namespace godot
          * 
          */
         const float jump_force = 300.0;
+        /**
+         * @brief The default bounce force applied when bouncing on something.
+         * 
+         */
+        const float bounce_force = 200.0;
         /**
          * @brief The default gravity applied to the player.
          * 
@@ -93,6 +98,11 @@ namespace godot
                  * 
                  */
                 float jump_force;
+                /**
+                 * @brief The force applied to the player when bouncing off something.
+                 * 
+                 */
+                float bounce_force;
                 /**
                  * @brief The gravity applied to the player.
                  * 
@@ -194,6 +204,20 @@ namespace godot
                  */
                 float get_jump_force();
 
+                /**
+                 * @brief Set the bounce force object.
+                 * 
+                 * @param[in] bounce_force The new force applied to the player to make him bounce.
+                 */
+                void set_bounce_force(float bounce_force);
+
+                /**
+                 * @brief Get the bounce force object.
+                 * 
+                 * @return float The current force being applied to the player.
+                 */
+                float get_bounce_force();
+
                 /**
                  * @brief Set the gravity object.
                  * 
@@ -250,6 +274,8 @@ namespace godot
                  * @return Vector2 Returns the velocity of the player.
                  */
                 Vector2 get_velocity();
+
+                void _on_player_touched();
         };
     }
 }