Collision 1/2

Src/IAESandbox/imp/cpp/Game.cpp

@@ -4,6 +4,7 @@
 #include <IAEngine/Rendering/Camera.hpp>
 #include <IAEngine/Rendering/DebugDraw.hpp>
 #include <IAEngine/Components/SpriteRenderer.hpp>
+#include <IAEngine/Components/Physics.hpp>
 
 #include <IACore/File.hpp>
 
@@ -12,6 +13,7 @@ namespace ia::iae::game
     RefPtr<Scene> scene;
 
     RefPtr<Node> g_player;
+    PhysicsComponent* g_playerPhysics;
 
     VOID Game::Initialize()
     {
@@ -32,8 +34,18 @@ namespace ia::iae::game
             });
             t->BakeAnimations();
         }
+        g_playerPhysics = g_player->AddComponent<PhysicsComponent>();
+        g_playerPhysics->AddCollider({
+            .IsTrigger = false,
+            .Position = {
+                0.0f, 0.0f,
+            },
+            .Size = {
+                25.0f, 25.0f
+            }
+        });
         g_player->Tags() = NODE_TAG_PLAYER;
-        g_player->SetLocalPosition({200, 200});
+        g_player->SetLocalPosition({200, 300});
 
         const auto obstacle = MakeRefPtr<Node>();
         {
@@ -42,14 +54,23 @@ namespace ia::iae::game
                 .ShouldLoop = true,
                 .Keys = {
                     SpriteRendererComponent::AnimationKeyFrame {
-                        .Scale = {3.0f, 0.5f},
+                        .Scale = {1.0f, 0.5f},
                         .ColorOverlay = {0.75f, 0.0f, 0.0f, 1.0f}
                     }
                 },
             });
             t->BakeAnimations();
         }
-        
+        const auto obstaclePhysics = obstacle->AddComponent<PhysicsComponent>();
+        obstaclePhysics->AddCollider({
+            .IsTrigger = false,
+            .Position = {
+                0.0f, 0.0f,
+            },
+            .Size = {
+                100.0f, 50.0f
+            }
+        });
         obstacle->Tags() = NODE_TAG_GROUND;
         obstacle->SetLocalSortIndex(20);
         obstacle->SetLocalPosition({200, 400});
@@ -66,5 +87,7 @@ namespace ia::iae::game
 
     VOID Game::Update()
     {
+        const auto d = Input::GetDirectionalInput();
+        g_playerPhysics->Move(d);
     }
 }

Src/IAEngine/CMakeLists.txt

@@ -31,6 +31,7 @@ set(IAEngine_Sources
     imp/cpp/Components/SoundEmitter.cpp
     imp/cpp/Components/ParticleEmitter.cpp
     imp/cpp/Components/TextureRenderer.cpp
+    imp/cpp/Components/Physics.cpp
 )
 
 add_library(IAEngine STATIC ${IAEngine_Sources})

Src/IAEngine/imp/cpp/Components/Physics.cpp

@@ -0,0 +1,75 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include <IAEngine/Components/Physics.hpp>
+#include <IAEngine/Physics/Physics.hpp>
+#include <IAEngine/Nodes/Node.hpp>
+
+namespace ia::iae
+{
+    PhysicsComponent::PhysicsComponent(IN Node *node) : IComponent(node)
+    {
+        m_physicsHandle = Physics::RegisterComponent(this);
+    }
+
+    PhysicsComponent::~PhysicsComponent()
+    {
+    }
+
+    VOID PhysicsComponent::Draw()
+    {
+    }
+
+    VOID PhysicsComponent::Update()
+    {
+    }
+
+    Handle PhysicsComponent::CreateCollider()
+    {
+        m_colliders.pushBack({});
+        return m_colliders.size() - 1;
+    }
+
+    Handle PhysicsComponent::AddCollider(IN Collider collider)
+    {
+        m_colliders.pushBack(collider);
+        return m_colliders.size() - 1;
+    }
+
+    PhysicsComponent::Collider &PhysicsComponent::GetCollider(IN Handle handle)
+    {
+        return m_colliders[handle];
+    }
+
+    VOID PhysicsComponent::Move(IN glm::vec2 direction)
+    {
+        const auto v = direction * m_movementSpeed;
+        for(const auto& t: m_colliders)
+        {
+            if(!Physics::CanMove(m_physicsHandle, t, v))
+                return;
+        }
+        m_node->SetLocalPosition(m_node->GetLocalPosition() + v);
+    }
+
+    VOID PhysicsComponent::Jump(IN FLOAT32 force)
+    {
+    }
+
+    VOID PhysicsComponent::OnCollision(IN PhysicsComponent *other)
+    {
+    }
+} // namespace ia::iae

Src/IAEngine/imp/cpp/Physics/Physics.cpp

@@ -23,6 +23,8 @@
 
 namespace ia::iae
 {
+    Vector<PhysicsComponent *> g_physicsComponents;
+
     VOID Physics::Initialize()
     {
     }
@@ -34,4 +36,27 @@ namespace ia::iae
     VOID Physics::Update()
     {
     }
+
+    Handle Physics::RegisterComponent(IN PhysicsComponent *component)
+    {
+        g_physicsComponents.pushBack(component);
+        return g_physicsComponents.size() - 1;
+    }
+
+    BOOL Physics::CanMove(IN Handle handle, IN CONST PhysicsComponent::Collider &collider, IN glm::vec2 movement)
+    {
+        const auto comp = g_physicsComponents[handle];
+        const auto middle = comp->GetNode()->GetPosition() + movement + collider.Position + collider.Size / 2.0f;
+        for (const auto &t : g_physicsComponents)
+        {
+            if (t == comp)
+                continue;
+            for(const auto& tc: t->Colliders())
+            {
+                const auto tMiddle = t->GetNode()->GetPosition() + tc.Position + tc.Size / 2.0f;
+                
+            }
+        }
+        return true;
+    }
 } // namespace ia::iae

Src/IAEngine/inc/IAEngine/Components/Physics.hpp

@@ -0,0 +1,75 @@
+// IAEngine: 2D Game Engine by IA
+// Copyright (C) 2025 IAS (ias@iasoft.dev)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <IAEngine/Components/Component.hpp>
+
+namespace ia::iae
+{
+    class PhysicsComponent : public IComponent
+    {
+      public:
+        struct Collider
+        {
+            BOOL IsTrigger{false};
+            glm::vec2 Position{};
+            glm::vec2 Size{};
+        };
+
+      public:
+        PhysicsComponent(IN Node *node);
+        ~PhysicsComponent();
+
+        Handle CreateCollider();
+        Handle AddCollider(IN Collider collider);
+        Collider &GetCollider(IN Handle handle);
+
+        VOID Move(IN glm::vec2 direction);
+
+        VOID Jump(IN FLOAT32 force);
+
+      public:
+        BOOL &IsDynamic()
+        {
+            return m_isDynamic;
+        }
+
+        FLOAT32 &MovementSpeed()
+        {
+            return m_movementSpeed;
+        }
+
+        Vector<Collider> &Colliders()
+        {
+            return m_colliders;
+        }
+
+      public:
+        VOID Draw();
+        VOID Update();
+
+      private:
+        BOOL m_isDynamic{false};
+        FLOAT32 m_movementSpeed{2.0f};
+        Vector<Collider> m_colliders;
+        Handle m_physicsHandle{INVALID_HANDLE};
+
+        VOID OnCollision(IN PhysicsComponent *other);
+
+        friend class Physics;
+    };
+} // namespace ia::iae

Src/IAEngine/inc/IAEngine/Physics/Physics.hpp

@@ -17,15 +17,23 @@
 #pragma once
 
 #include <IAEngine/Physics/Physics.hpp>
+#include <IAEngine/Components/Physics.hpp>
 
 namespace ia::iae
 {
     class Physics
     {
     public:
+        STATIC Handle RegisterComponent(IN PhysicsComponent* component);
+
+        STATIC BOOL CanMove(IN Handle handle, IN CONST PhysicsComponent::Collider& collider, IN glm::vec2 movement);
+
+    private:
         STATIC VOID Initialize();
         STATIC VOID Terminate();
 
         STATIC VOID Update();
+
+        friend class Engine;
     };
 }