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+#include "orienting.h"
+#include "game.h"
+#include "components/orientable.h"
+#include "components/ponderable.h"
+#include "systems/animating.h"
+#include "consts.h"
+#include "muxer.h"
+
+void OrientingSystem::tick(double)
+{
+  auto entities = game_.getEntityManager().getEntitiesWithComponents<
+    OrientableComponent,
+    PonderableComponent>();
+
+  for (id_type entity : entities)
+  {
+    auto& orientable = game_.getEntityManager().
+      getComponent<OrientableComponent>(entity);
+
+    auto& ponderable = game_.getEntityManager().
+      getComponent<PonderableComponent>(entity);
+
+    switch (orientable.getWalkState())
+    {
+      case OrientableComponent::WalkState::still:
+      {
+        ponderable.setVelocityX(0);
+
+        break;
+      }
+
+      case OrientableComponent::WalkState::left:
+      {
+        ponderable.setVelocityX(-WALK_SPEED);
+
+        break;
+      }
+
+      case OrientableComponent::WalkState::right:
+      {
+        ponderable.setVelocityX(WALK_SPEED);
+
+        break;
+      }
+    }
+
+    if (orientable.isJumping() && (ponderable.getVelocityY() > 0))
+    {
+      orientable.setJumping(false);
+    }
+  }
+}
+
+void OrientingSystem::moveLeft(id_type entity)
+{
+  auto& ponderable = game_.getEntityManager().
+    getComponent<PonderableComponent>(entity);
+
+  auto& orientable = game_.getEntityManager().
+    getComponent<OrientableComponent>(entity);
+
+  orientable.setFacingRight(false);
+  orientable.setWalkState(OrientableComponent::WalkState::left);
+
+  auto& animating = game_.getSystemManager().getSystem<AnimatingSystem>();
+  if (ponderable.isGrounded())
+  {
+    animating.startAnimation(entity, "walkingLeft");
+  } else {
+    animating.startAnimation(entity, "stillLeft");
+  }
+}
+
+void OrientingSystem::moveRight(id_type entity)
+{
+  auto& ponderable = game_.getEntityManager().
+    getComponent<PonderableComponent>(entity);
+
+  auto& orientable = game_.getEntityManager().
+    getComponent<OrientableComponent>(entity);
+
+  orientable.setFacingRight(true);
+  orientable.setWalkState(OrientableComponent::WalkState::right);
+
+  auto& animating = game_.getSystemManager().getSystem<AnimatingSystem>();
+  if (ponderable.isGrounded())
+  {
+    animating.startAnimation(entity, "walkingRight");
+  } else {
+    animating.startAnimation(entity, "stillRight");
+  }
+}
+
+void OrientingSystem::stopWalking(id_type entity)
+{
+  auto& ponderable = game_.getEntityManager().
+    getComponent<PonderableComponent>(entity);
+
+  auto& orientable = game_.getEntityManager().
+    getComponent<OrientableComponent>(entity);
+
+  orientable.setWalkState(OrientableComponent::WalkState::still);
+
+  if (ponderable.isGrounded())
+  {
+    auto& animating = game_.getSystemManager().getSystem<AnimatingSystem>();
+
+    if (orientable.isFacingRight())
+    {
+      animating.startAnimation(entity, "stillRight");
+    } else {
+      animating.startAnimation(entity, "stillLeft");
+    }
+  }
+}
+
+void OrientingSystem::jump(id_type entity)
+{
+  auto& ponderable = game_.getEntityManager().
+    getComponent<PonderableComponent>(entity);
+
+  if (ponderable.isGrounded())
+  {
+    auto& orientable = game_.getEntityManager().
+      getComponent<OrientableComponent>(entity);
+
+    orientable.setJumping(true);
+
+    playSound("res/Randomize87.wav", 0.25);
+
+    ponderable.setVelocityY(JUMP_VELOCITY);
+    ponderable.setAccelY(JUMP_GRAVITY);
+
+    auto& animating = game_.getSystemManager().getSystem<AnimatingSystem>();
+    if (orientable.isFacingRight())
+    {
+      animating.startAnimation(entity, "stillRight");
+    } else {
+      animating.startAnimation(entity, "stillLeft");
+    }
+  }
+}
+
+void OrientingSystem::stopJumping(id_type entity)
+{
+  auto& orientable = game_.getEntityManager().
+    getComponent<OrientableComponent>(entity);
+
+  if (orientable.isJumping())
+  {
+    orientable.setJumping(false);
+
+    auto& ponderable = game_.getEntityManager().
+      getComponent<PonderableComponent>(entity);
+
+    ponderable.setAccelY(NORMAL_GRAVITY);
+  }
+}
+
+void OrientingSystem::land(id_type entity)
+{
+  auto& orientable = game_.getEntityManager().
+    getComponent<OrientableComponent>(entity);
+
+  auto& animating = game_.getSystemManager().getSystem<AnimatingSystem>();
+
+  switch (orientable.getWalkState())
+  {
+    case OrientableComponent::WalkState::still:
+    {
+      if (orientable.isFacingRight())
+      {
+        animating.startAnimation(entity, "stillRight");
+      } else {
+        animating.startAnimation(entity, "stillLeft");
+      }
+
+      break;
+    }
+
+    case OrientableComponent::WalkState::left:
+    {
+      animating.startAnimation(entity, "walkingLeft");
+
+      break;
+    }
+
+    case OrientableComponent::WalkState::right:
+    {
+      animating.startAnimation(entity, "walkingRight");
+
+      break;
+    }
+  }
+}
+
+void OrientingSystem::startFalling(id_type entity)
+{
+  auto& orientable = game_.getEntityManager().
+    getComponent<OrientableComponent>(entity);
+
+  auto& animating = game_.getSystemManager().getSystem<AnimatingSystem>();
+
+  if (orientable.isFacingRight())
+  {
+    animating.startAnimation(entity, "stillRight");
+  } else {
+    animating.startAnimation(entity, "stillLeft");
+  }
+}
+
+void OrientingSystem::drop(id_type entity)
+{
+  auto& orientable = game_.getEntityManager().
+    getComponent<OrientableComponent>(entity);
+
+  auto& ponderable = game_.getEntityManager().
+    getComponent<PonderableComponent>(entity);
+
+  if (ponderable.isGrounded()
+    && (orientable.getDropState() == OrientableComponent::DropState::none))
+  {
+    orientable.setDropState(OrientableComponent::DropState::ready);
+  }
+}
+
+void OrientingSystem::stopDropping(id_type entity)
+{
+  auto& orientable = game_.getEntityManager().
+    getComponent<OrientableComponent>(entity);
+
+  if (orientable.getDropState() == OrientableComponent::DropState::ready)
+  {
+    orientable.setDropState(OrientableComponent::DropState::none);
+  }
+}