Add powerup spawning system for container and enemy

- Add powerup generator
  - Enemy now seldomly spawn powerups when dying
  - Containers (brazier or candle) have a small chance to spawn different
    COMMON powerup from its designated one - which also has to be another COMMON powerup
    (e.g. containers that hold RedMoneyBag (COMMON) have a chance to spawn
    SmallHeart (COMMON) instead. Containers that hold Cross powerup (RARE) ALWAYS spawn Cross powerup)
  - Powerup spawn chances:
		COMMON (~70% spawn chance)
      - RedMoneyBag
		  - BlueMoneyBag
      - SmallHeart
		UNCOMMON (~25% spawn chance)
      - WhiteMoneyBag
      - AxeItem
      - BoomerangItem
      - DaggerItem
      - HolyWaterItem
      - LargeHeart
		RARE (~5% spawn chance)
      - FlashingMoneyBag
      - Cross
      - InvisibleJar
      - PorkChop
      - Stopwatch
      - DoubleShot
      - TripleShot
- Fix simon bouncing back at wrong direction when get hit by enemies
- Fix a bug where zombie occasionally spawned in the air in room 3 (great hall map)
- Player must fall at least 2.5 tiles height to be able to do a superhero landing when hitting the ground
- Copy asset folder to target directory in postbuild event

Author: NearHuscarl

TROUBLESHOOTING.md

@@ -47,7 +47,7 @@ d3d9.lib;d3dx9.lib;dinput8.lib;dxguid.lib;dsound.lib;dxerr.lib;winmm.lib;%(Addit
 -  Add this line in the Command Line
 
 ```
-XCOPY "$(ProjectDir)\lib\*.dll" "$(TargetDir)" /D /K /Y
+XCOPY "$(ProjectDir)lib\*.dll" "$(TargetDir)" /D /K /Y
 ```
 
 By default, Visual Studio only copy `*.dll` files in the `$(ProjectDir)`. If you put

src/GameCuaTao/Castlevania.vcxproj

@@ -37,7 +37,9 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <PlatformToolset>v141</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>MultiByte</CharacterSet>
+    <CharacterSet>Unicode</CharacterSet>
+    <IncludePath>Library\directx\Include;Library\freetype\Include;Library\fmt\Include;$(IncludePath)</IncludePath>
+    <LibraryPath>Library\directx\Lib;Library\freetype\Lib;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
@@ -100,10 +102,11 @@
       </SubSystem>
     </Link>
     <PostBuildEvent>
-      <Command>XCOPY "$(ProjectDir)\library\freetype\lib\freetype.dll" "$(TargetDir)" /D /K /Y</Command>
+      <Command>XCOPY "$(ProjectDir)library\freetype\lib\freetype.dll" "$(TargetDir)" /D /K /Y
+XCOPY "$(ProjectDir)Castlevania\Content" "$(TargetDir)Castlevania\Content" /D /E /I /K /Y</Command>
     </PostBuildEvent>
     <PostBuildEvent>
-      <Message>Copy DLLs to Target Directory</Message>
+      <Message>Copy DLLs and asset files to Target Directory</Message>
     </PostBuildEvent>
     <PreBuildEvent>
       <!-- <Command>#$(ProjectDir)Deployment\cppclean.sh</Command> -->
@@ -135,11 +138,21 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
-      <ConformanceMode>true</ConformanceMode>
+      <!-- <ConformanceMode>true</ConformanceMode> -->
+      <SDLCheck>true</SDLCheck>
+      <ConformanceMode>false</ConformanceMode>
+      <AdditionalIncludeDirectories>SDK Path\Include;.</AdditionalIncludeDirectories>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ObjectFileName>$(IntDir)/%(RelativeDir)/</ObjectFileName>
     </ClCompile>
     <Link>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>freetype.lib;d3d9.lib;d3dx9.lib;dinput8.lib;dxguid.lib;dsound.lib;dxerr.lib;winmm.lib;%(AdditionalDependencies);legacy_stdio_definitions.lib</AdditionalDependencies>
+      <AdditionalLibraryDirectories>SDK Path\Include</AdditionalLibraryDirectories>
+      <SubSystem>
+      </SubSystem>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -199,6 +212,7 @@
     <ClCompile Include="Castlevania\Models\Items\Door.cpp" />
     <ClCompile Include="Castlevania\Models\Items\DoorRenderingSystem.cpp" />
     <ClCompile Include="Castlevania\Models\Items\MoneyBag.cpp" />
+    <ClCompile Include="Castlevania\Models\PowerupGenerator.cpp" />
     <ClCompile Include="Castlevania\Models\Systems\Rendering\ItemRenderingSystem.cpp" />
     <ClCompile Include="Castlevania\Models\Items\Powerup.cpp" />
     <ClCompile Include="Castlevania\Models\Items\PowerupResponseSystem.cpp" />
@@ -371,6 +385,7 @@
     <ClInclude Include="Castlevania\Models\IAttackable.h" />
     <ClInclude Include="Castlevania\Models\Items\MoneyBag.h" />
     <ClInclude Include="Castlevania\Models\Checkpoint.h" />
+    <ClInclude Include="Castlevania\Models\PowerupGenerator.h" />
     <ClInclude Include="Castlevania\Models\Systems\Rendering\ItemRenderingSystem.h" />
     <ClInclude Include="Castlevania\Models\Items\PowerupResponseSystem.h" />
     <ClInclude Include="Castlevania\Models\Settings.h" />

src/GameCuaTao/Castlevania.vcxproj.filters

@@ -507,6 +507,9 @@
     <ClCompile Include="Castlevania\Models\Characters\Player\PlayerCollisionSystem.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="Castlevania\Models\PowerupGenerator.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Library\pugixml.hpp">
@@ -1160,6 +1163,9 @@
     <ClInclude Include="Castlevania\Models\Characters\Player\PlayerCollisionSystem.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="Castlevania\Models\PowerupGenerator.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="cpp.hint" />

src/GameCuaTao/Castlevania/Content/TiledMaps/Stage_01/Great_Hall.tmx

@@ -480,7 +480,7 @@
   </object>
  </objectgroup>
  <objectgroup color="#ff0000" id="5" name="Locations">
-  <object id="9" name="Entrypoint1" type="Position" gid="185" x="64" y="320" width="60" height="66">
+  <object id="9" name="Entrypoint" type="Position" gid="185" x="64" y="320" width="60" height="66">
    <properties>
     <property name="Facing" value="Right"/>
    </properties>
@@ -495,7 +495,7 @@
     <property name="Facing" value="Left"/>
    </properties>
   </object>
-  <object id="120" name="Entrypoint" type="Position" gid="185" x="5050" y="310.83" width="60" height="66">
+  <object id="120" name="Entrypoint2" type="Position" gid="185" x="5050" y="310.83" width="60" height="66">
    <properties>
     <property name="Facing" value="Right"/>
    </properties>
@@ -510,7 +510,7 @@
     <property name="Facing" value="Right"/>
    </properties>
   </object>
-  <object id="125" name="Entrypoint2" type="Position" gid="185" x="2285" y="314" width="60" height="66">
+  <object id="125" name="Entrypoint1" type="Position" gid="185" x="4220" y="124" width="60" height="66">
    <properties>
     <property name="Facing" value="Right"/>
    </properties>

src/GameCuaTao/Castlevania/Models/Characters/Enemies/Enemy.cpp

@@ -1,6 +1,8 @@
 #include "Enemy.h"
+#include "../../Items/Powerup.h"
 #include "../../UpdateData.h"
 #include "../../Settings.h"
+#include "../../../Utilities/CollisionGrid.h"
 
 using namespace Castlevania;
 
@@ -38,6 +40,11 @@ int Enemy::GetExp()
 	return exp;
 }
 
+void Enemy::SetPowerupGenerator(std::unique_ptr<PowerupGenerator> powerupGenerator)
+{
+	this->powerupGenerator = std::move(powerupGenerator);
+}
+
 void Enemy::Update(UpdateData &updateData)
 {
 	if (!updateData.isStopwatchActive)
@@ -68,4 +75,22 @@ void Enemy::Die()
 	SetState(ObjectState::DYING);
 	body.Enabled(false);
 	Detach<IMovementSystem>();
+	SpawnItem();
 }
+
+void Enemy::SpawnItem()
+{
+	if (powerupGenerator == nullptr)
+		return;
+
+	auto item = powerupGenerator->Generate();
+
+	if (item == nullptr)
+		return;
+
+	auto spawnedPosition = Vector2{ GetOriginPosition().x, position.y };
+
+	item->SetPosition(spawnedPosition);
+	item->Spawn();
+	collisionGrid->Add(std::move(item), CollisionObjectType::Entity);
+}

src/GameCuaTao/Castlevania/Models/Characters/Enemies/Enemy.h

@@ -3,6 +3,7 @@
 #include "../../GameObject.h"
 #include "../../IAttackable.h"
 #include "../../Health.h"
+#include "../../PowerupGenerator.h"
 
 namespace Castlevania
 {
@@ -17,6 +18,7 @@ namespace Castlevania
 		void SetAttack(int value) override;
 		void SetExp(int value);
 		int GetExp();
+		void SetPowerupGenerator(std::unique_ptr<PowerupGenerator> powerupGenerator);
 
 		virtual void Update(UpdateData &updateData) override;
 		void TakeDamage(int damage);
@@ -26,5 +28,8 @@ namespace Castlevania
 		Health health;
 		int attack;
 		int exp;
+		std::unique_ptr<PowerupGenerator> powerupGenerator;
+
+		void SpawnItem();
 	};
 }

src/GameCuaTao/Castlevania/Models/Characters/Player/Player.cpp

@@ -15,6 +15,7 @@ constexpr auto FLASHING_TIME = 900;
 constexpr auto UNTOUCHABLE_TIME = 2000;
 constexpr auto THROWING_COOLDOWN_TIME = 1000;
 constexpr auto INVISIBLE_TIME = 6000;
+constexpr auto LARGE_HEIGHT = 32 * 2.5f; // 2.5 tiles
 
 // Simon bounce back's max height (when taking damage)
 constexpr auto BOUNCE_BACK_HEIGHT = 360.0f;
@@ -71,6 +72,7 @@ void Player::SetPosition(Checkpoint checkpoint)
 {
 	position = checkpoint.position;
 	SetFacing(checkpoint.facing);
+	lastPlatformHeight = position.y + GetFrameRect().Height();
 }
 
 void Player::SetSpeed(float speed)
@@ -464,6 +466,7 @@ bool Player::CanGoDownstairs()
 
 void Player::IdleOnGround()
 {
+	lastPlatformHeight = position.y + GetFrameRect().Height();
 	SetMoveState(MoveState::IDLE);
 	velocity.x = 0;
 }
@@ -486,6 +489,7 @@ void Player::DoThrow()
 
 void Player::Fall()
 {
+	velocity.x = 0.0f;
 	moveState = MoveState::FALLING_HARD;
 }
 
@@ -501,7 +505,8 @@ void Player::Land()
 		return;
 	}
 
-	if (velocity.y > 600.0f) // Falling down very fast, do a superhero landing
+	// Falling down at great distance, do a superhero landing
+	if (position.y + GetFrameRect().Height() - lastPlatformHeight >= LARGE_HEIGHT)
 	{
 		SetMoveState(MoveState::LANDING_HARD);
 		velocity = Vector2::Zero();

src/GameCuaTao/Castlevania/Models/Characters/Player/Player.h

@@ -155,5 +155,10 @@ namespace Castlevania
 
 		// Component-related flags
 		NearbyObjects nearbyObjects;
+
+		// Need a reference to the height of the platform the player was standing before jumping
+		// or falling from to calculate how high the player fall. this will determine how the player
+		// would land later on
+		float lastPlatformHeight;
 	};
 }

src/GameCuaTao/Castlevania/Models/Characters/Player/PlayerRenderingSystem.cpp

@@ -45,6 +45,7 @@ void PlayerRenderingSystem::Receive(int message)
 			break;
 
 		case UNTOUCHABLE_STARTED:
+		case INVISIBLE_STARTED:
 			drawUntouchableEffect = true;
 			break;
 
@@ -168,7 +169,7 @@ void PlayerRenderingSystem::UpdateInvisibleRendering()
 {
 	auto invisibleElapsed = parent.invisibleTimer.ElapsedMilliseconds();
 
-	if (invisibleElapsed >= INVISIBLE_EFFECT_START && invisibleElapsed <= INVISIBLE_EFFECT_END)
+	if (INVISIBLE_EFFECT_START <= invisibleElapsed && invisibleElapsed <= INVISIBLE_EFFECT_END)
 	{
 		if (!drawInvisibleEffect)
 		{

src/GameCuaTao/Castlevania/Models/Characters/Player/PlayerResponseSystem.cpp

@@ -151,9 +151,9 @@ Direction PlayerResponseSystem::GetPlayerHitDirection(GameObject &object, Direct
 		case Direction::Top:
 		case Direction::Bottom:
 			if (parent.GetOriginPosition().x <= object.GetOriginPosition().x)
-				hitDirection = Direction::Left;
-			else
 				hitDirection = Direction::Right;
+			else
+				hitDirection = Direction::Left;
 			break;
 	}
 
@@ -197,7 +197,7 @@ void PlayerResponseSystem::OnCollideWithBoundary(CollisionResult &result, Respon
 					{
 						ClampDistance_Y(collisionData);
 						parent.Land();
-						
+
 						if (parent.data.health.Value() <= 0)
 							parent.Die();
 					}