From 9c2cafd85ed7aa9a860ba25fbe2bd3ccc2439f29 Mon Sep 17 00:00:00 2001
From: max-001 <maxsmits21@kpnmail.nl>
Date: Fri, 6 Dec 2024 10:39:18 +0100
Subject: Using Rigidbody from now on

---
 src/crepe/api/AI.cpp          |  6 +-----
 src/crepe/api/AI.h            |  7 +------
 src/crepe/system/AISystem.cpp | 22 +++++++++++-----------
 src/example/AITest.cpp        |  6 +++++-
 4 files changed, 18 insertions(+), 23 deletions(-)

diff --git a/src/crepe/api/AI.cpp b/src/crepe/api/AI.cpp
index 7f820a8..d785bb5 100644
--- a/src/crepe/api/AI.cpp
+++ b/src/crepe/api/AI.cpp
@@ -2,10 +2,6 @@
 
 namespace crepe {
 
-AI::AI(game_object_id_t id, float mass, float max_speed, float max_force)
-	: Component(id),
-	  mass(mass),
-	  max_speed(max_speed),
-	  max_force(max_force) {}
+AI::AI(game_object_id_t id, float max_force) : Component(id), max_force(max_force) {}
 
 } // namespace crepe
diff --git a/src/crepe/api/AI.h b/src/crepe/api/AI.h
index 242ff89..046426d 100644
--- a/src/crepe/api/AI.h
+++ b/src/crepe/api/AI.h
@@ -16,7 +16,7 @@ public:
 	};
 
 public:
-	AI(game_object_id_t id, float mass, float max_speed, float max_force);
+	AI(game_object_id_t id, float max_force);
 
 	bool on(BehaviorType behavior) const { return (flags & behavior) == behavior; }
 	void seek_on() { flags |= SEEK; }
@@ -37,8 +37,6 @@ public:
 	}
 
 public:
-	float mass;
-	float max_speed;
 	float max_force;
 
 	// The target to seek or arrive at
@@ -51,9 +49,6 @@ public:
 	float arrive_deceleration = 2.0f;
 
 private:
-	vec2 velocity;
-	friend class AISystem;
-
 	int flags = 0;
 };
 
diff --git a/src/crepe/system/AISystem.cpp b/src/crepe/system/AISystem.cpp
index 3c61c78..d496e12 100644
--- a/src/crepe/system/AISystem.cpp
+++ b/src/crepe/system/AISystem.cpp
@@ -1,4 +1,5 @@
 #include "api/LoopTimer.h"
+#include "api/Rigidbody.h"
 #include "api/Transform.h"
 #include "manager/ComponentManager.h"
 #include "manager/Mediator.h"
@@ -16,16 +17,13 @@ void AISystem::update() {
 	double dt = LoopTimer::get_instance().get_delta_time();
 
 	for (AI & ai : ai_components) {
+		RefVector<Rigidbody> rigidbodies
+			= mgr.get_components_by_id<Rigidbody>(ai.game_object_id);
+		Rigidbody & rigidbody = rigidbodies.front().get();
+
 		vec2 force = this->calculate(ai);
-		vec2 acceleration = force / ai.mass;
-		ai.velocity += acceleration * dt;
-		ai.velocity.truncate(ai.max_speed);
-
-		// Update the position
-		RefVector<Transform> transforms
-			= mgr.get_components_by_id<Transform>(ai.game_object_id);
-		Transform & transform = transforms.front().get();
-		transform.position += ai.velocity * dt;
+		vec2 acceleration = force / rigidbody.data.mass;
+		rigidbody.data.linear_velocity += acceleration * dt;
 	}
 }
 
@@ -69,10 +67,12 @@ vec2 AISystem::seek(const AI & ai) {
 	ComponentManager & mgr = mediator.component_manager;
 	RefVector<Transform> transforms = mgr.get_components_by_id<Transform>(ai.game_object_id);
 	Transform & transform = transforms.front().get();
+	RefVector<Rigidbody> rigidbodies = mgr.get_components_by_id<Rigidbody>(ai.game_object_id);
+	Rigidbody & rigidbody = rigidbodies.front().get();
 
 	vec2 desired_velocity = ai.seek_target - transform.position;
 	desired_velocity.normalize();
-	desired_velocity *= ai.max_speed;
+	desired_velocity *= rigidbody.data.max_linear_velocity;
 
-	return desired_velocity - ai.velocity;
+	return desired_velocity - rigidbody.data.linear_velocity;
 }
diff --git a/src/example/AITest.cpp b/src/example/AITest.cpp
index 91a529c..2b6a4d6 100644
--- a/src/example/AITest.cpp
+++ b/src/example/AITest.cpp
@@ -6,6 +6,7 @@
 #include <crepe/api/Color.h>
 #include <crepe/api/GameObject.h>
 #include <crepe/api/LoopManager.h>
+#include <crepe/api/Rigidbody.h>
 #include <crepe/api/Scene.h>
 #include <crepe/api/Script.h>
 #include <crepe/api/Sprite.h>
@@ -40,7 +41,10 @@ public:
 		Texture img = Texture("asset/texture/test_ap43.png");
 		game_object1.add_component<Sprite>(img, Color::MAGENTA,
 										   Sprite::FlipSettings{false, false}, 1, 1, 195);
-		game_object1.add_component<AI>(1, 200, 200).seek_on();
+		game_object1.add_component<AI>(200).seek_on();
+		game_object1.add_component<Rigidbody>(Rigidbody::Data{
+			.mass = 1.0f, .max_linear_velocity = {21, 21}, // sqrt(21^2 + 21^2) = 30
+		});
 
 		game_object2.add_component<Camera>(Color::WHITE, ivec2{1080, 720}, vec2{1036, 780},
 										   1.0f);
-- 
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