Removed physics for now.

archive/physics_components/2d/CharacterController2D.cpp

@@ -0,0 +1,92 @@
+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "CharacterController2D.hpp"
+
+using namespace Dawn;
+
+CharacterController2D::CharacterController2D(std::weak_ptr<SceneItem> i) :
+  SceneItemComponent(i)
+{
+}
+
+void CharacterController2D::onStart() {
+  useEvent([&](float_t delta){
+    // if(velocity == glm::vec2(0, 0)) return;
+
+    // Common variables
+    auto item = this->item.lock();
+    auto myCollider = item->getComponent<Collider2D>();
+
+    // Friction
+    velocity -= velocity * friction * delta;
+
+    // Solid Collision Check
+    glm::vec2 moveAmount;
+    if(myCollider == nullptr) {
+      moveAmount = velocity;
+    } else {
+      // Perform sweep
+      auto allColliders = getScene()->findComponents<SolidController2D>();
+      auto itColliders = allColliders.begin();
+
+      struct CharacterController2DCollisionEventInfo info;
+      bool_t result = false;
+
+      // Check for collisions, definitely not working 100% yet 
+      while(itColliders != allColliders.end()) {
+        auto c = *itColliders;
+        ++itColliders;
+        auto cItem = c->item.lock();
+        if(cItem == item || cItem->isChildOf(item)) continue;
+        result = c->getCollidingResult(
+          velocity,
+          myCollider,
+          info.normal,
+          info.entryTime,
+          info.exitTime,
+          info.entryPoint,
+          info.exitPoint
+        ) && info.entryTime <= delta;
+
+        if(result) {
+          info.collider = c;
+          break;
+        }
+      }
+      
+      if(result) {
+        moveAmount = glm::vec2(0, 0);
+        velocity = glm::vec2(0, 0);
+        this->eventCollision.invoke(info);
+      } else {
+        moveAmount = velocity;
+      }
+    }
+
+    if(moveAmount != glm::vec2(0, 0)) {
+      item->setLocalPosition(
+        item->getLocalPosition() + (glm::vec3(moveAmount.x, 0, moveAmount.y) * delta)
+      );
+    }
+
+    // Now perform trigger collision check
+    auto allTriggers = getScene()->findComponents<TriggerController2D>();
+    auto itTriggers = allTriggers.begin();
+    while(itTriggers != allTriggers.end()) {
+      auto c = *itTriggers;
+      ++itTriggers;
+      auto cItem = c->item.lock();
+      if(cItem == item || cItem->isChildOf(item)) continue;
+      if(c->getCollidingResult(myCollider)) {
+        c->eventTriggerEnter.invoke(this);
+      }
+    }
+
+    // Stop velocity near zero.
+    if(mathAbs<float_t>(velocity.x) <= 0.001f) velocity.x = 0;
+    if(mathAbs<float_t>(velocity.y) <= 0.001f) velocity.y = 0;
+  }, getScene()->eventSceneUpdate);
+}