Working skeletal animations!!!

include/Core/Engine.h

@@ -68,6 +68,8 @@
 #include "Physics/CParticle.h"
 #include "Physics/CParticleEmitter.h"
 
+#include "Rendering/AnimationSystem.h"
+
 #include "Game/EGameStart.h"
 #include "Sound/EPlaySound.h"
 
@@ -165,6 +167,9 @@ public:
 		m_World->SystemFactory.Register<Systems::PhysicsSystem>(
 				[this]() { return new Systems::PhysicsSystem(m_World.get(), m_EventBroker); });
 		m_World->AddSystem<Systems::PhysicsSystem>();
+		m_World->SystemFactory.Register<Systems::AnimationSystem>(
+				[this]() { return new Systems::AnimationSystem(m_World.get(), m_EventBroker); });
+		m_World->AddSystem<Systems::AnimationSystem>();
 		m_World->SystemFactory.Register<Systems::TravellingSystem>(
 			[this]() { return new Systems::TravellingSystem(m_World.get(), m_EventBroker); });
 		m_World->AddSystem<Systems::TravellingSystem>();
@@ -457,7 +462,8 @@ public:
 					glm::mat4 modelMatrix = glm::translate(glm::mat4(), absoluteTransform.Position)
 						* glm::toMat4(absoluteTransform.Orientation)
 						* glm::scale(absoluteTransform.Scale);
-					EnqueueModel(modelAsset, modelMatrix, modelComponent->Transparent, modelComponent->Color, modelComponent->ModelFile);
+					Components::Animation* animationComponent = m_World->GetComponent<Components::Animation>(entity);
+					EnqueueModel(modelAsset, modelMatrix, modelComponent, animationComponent);
 				}
 			}
 
@@ -513,7 +519,7 @@ public:
 	}
 
 	//TODO: Get this out of engine.h
-	void EnqueueModel(Model* model, glm::mat4 modelMatrix, float transparent, glm::vec4 color, std::string fileName)
+	void EnqueueModel(Model* model, glm::mat4 modelMatrix, const Components::Model* modelComponent, const Components::Animation* animationComponent)
 	{
 		for (auto texGroup : model->TextureGroups)
 		{
@@ -526,8 +532,17 @@ public:
 			job.ElementBuffer = model->ElementBuffer;
 			job.StartIndex = texGroup.StartIndex;
 			job.EndIndex = texGroup.EndIndex;
-			job.ModelMatrix = modelMatrix;
-			job.Color = color;
+			job.ModelMatrix = modelMatrix * model->m_Matrix;
+			job.Color = modelComponent->Color;
+			
+			if (model->m_Skeleton != nullptr) {
+				job.Skeleton = model->m_Skeleton;
+				if (animationComponent != nullptr) {
+					job.AnimationName = animationComponent->Name;
+					job.AnimationTime = animationComponent->Time;
+					job.NoRootMotion = animationComponent->NoRootMotion;
+				}
+			}
 
 			m_RendererQueue.Deferred.Add(job);
 		}

include/Core/Model.h

@@ -86,6 +86,8 @@ public:
 	std::vector<unsigned int> m_Indices;
 	Skeleton* m_Skeleton = nullptr;
 
+	glm::mat4 m_Matrix;
+
 private:
 	std::vector<glm::ivec2> BoneIndices;
 	std::vector<glm::vec2> BoneWeights;

include/Core/RenderQueue.h

@@ -66,6 +66,12 @@ struct ModelJob : RenderJob
 	unsigned int StartIndex;
 	unsigned int EndIndex;
 
+	// Animation
+	Skeleton* Skeleton = nullptr;
+	bool NoRootMotion = true;
+	std::string AnimationName;
+	double AnimationTime = 0;
+
 	void CalculateHash() override
 	{
 		Hash = TextureID;

include/Core/Skeleton.h

@@ -100,16 +100,17 @@ public:
 
 	int GetBoneID(std::string name);
 
-	std::vector<glm::mat4> GetFrameBones(std::string animationName, double time, bool noRootMotion = false);
-	void AccumulateBoneTransforms(bool noRootMotion, Animation::Keyframe &currentFrame, Animation::Keyframe &nextFrame, float progress, std::map<int, glm::mat4> &boneMatrices, Bone* bone, glm::mat4 parentMatrix);
+	const Animation* GetAnimation(std::string name);
+	std::vector<glm::mat4> GetFrameBones(const Animation& animation, double time, bool noRootMotion = false);
+	void AccumulateBoneTransforms(bool noRootMotion, const Animation::Keyframe& currentFrame, const Animation::Keyframe& nextFrame, float progress, std::map<int, glm::mat4>& boneMatrices, const Bone* bone, glm::mat4 parentMatrix);
 	void PrintSkeleton();
-	void PrintSkeleton(Bone* parent, int depthCount);
+	void PrintSkeleton(const Bone* parent, int depthCount);
 	std::map<std::string, Animation> Animations;
 
 private:
 	std::map<std::string, Bone*> m_BonesByName;
 
-	int GetKeyframe(Animation& animation, double time);
+	int GetKeyframe(const Animation& animation, double time);
 };
 
 }

include/Game/BallSystem.h

@@ -13,6 +13,7 @@
 #include "Rendering/CModel.h"
 #include "Rendering/CSprite.h"
 #include "Rendering/CPointLight.h"
+#include "Rendering/CAnimation.h"
 #include "Game/CBall.h"
 #include "Game/CPowerUp.h"
 #include "Game/CLife.h"

include/Rendering/AnimationSystem.h

@@ -0,0 +1,25 @@
+#ifndef AnimationSystem_h__
+#define AnimationSystem_h__
+
+#include "Core/System.h"
+#include "Core/World.h"
+#include "Rendering/CAnimation.h"
+
+namespace dd
+{
+namespace Systems
+{
+
+class AnimationSystem : public System
+{
+public:
+	AnimationSystem(World* world, std::shared_ptr<dd::EventBroker> eventBroker)
+		: System(world, eventBroker) { }
+
+	void RegisterComponents(ComponentFactory* cf) override;
+	void Update(double dt) override;
+};
+
+}
+}
+#endif

include/Rendering/CAnimation.h

@@ -0,0 +1,21 @@
+#ifndef COMPONENTS_CANIMATION_H__
+#define COMPONENTS_CANIMATION_H__
+
+#include "Core/Component.h"
+
+namespace dd
+{
+namespace Components
+{
+	
+struct Animation : Component
+{
+	std::string Name;
+	double Time = 0.0;
+	double Speed = 0.0;
+	bool NoRootMotion = true;
+};
+
+}
+}
+#endif

src/game/CMakeLists.txt

@@ -50,6 +50,7 @@ source_group(Input FILES ${SOURCE_FILES_Input})
 
 file(GLOB SOURCE_FILES_Rendering
     "${INCLUDE_PATH}/Rendering/*.h"
+    "Rendering/*.cpp"
 )
 source_group(Rendering FILES ${SOURCE_FILES_Rendering})
 

src/game/Core/Renderer.cpp

@@ -431,6 +431,20 @@ void dd::Renderer::DrawScene(RenderQueue &objects, ShaderProgram &program)
 				glBindTexture(GL_TEXTURE_2D, *m_StandardSpecular);
 			}
 
+			if (modelJob->Skeleton != nullptr) {
+				auto animation = modelJob->Skeleton->GetAnimation(modelJob->AnimationName);
+				if (animation != nullptr) {
+					std::vector<glm::mat4> frameBones = modelJob->Skeleton->GetFrameBones(
+						*animation,
+						modelJob->AnimationTime,
+						modelJob->NoRootMotion
+					);
+					glUniformMatrix4fv(glGetUniformLocation(shaderProgramHandle, "Bones"), frameBones.size(), GL_FALSE, glm::value_ptr(frameBones[0]));
+				} else {
+					LOG_WARNING("Tried to play unknown animation \"%s\"", modelJob->AnimationName.c_str());
+				}
+			}
+
 			glBindVertexArray(modelJob->VAO);
 			glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, modelJob->ElementBuffer);
 			glDrawElementsBaseVertex(GL_TRIANGLES, modelJob->EndIndex - modelJob->StartIndex + 1, GL_UNSIGNED_INT, 0, modelJob->StartIndex);

src/game/Core/Shaders/Deferred/1/Vertex.glsl

@@ -65,7 +65,7 @@ void main()
 					  + BoneWeights2[3] * Bones[int(BoneIndices2[3])];
 	}
 
-	gl_Position = MVP * vec4(Position, 1.0);
+	gl_Position = MVP * boneTransform * vec4(Position, 1.0);
 
 	Output.Position = (V * M * boneTransform * vec4(Position, 1.0)).xyz;
 	Output.Normal = (inverse(transpose(V * M)) * boneTransform * vec4(Normal, 0.0)).xyz;

src/game/Core/Shaders/Forward/Vertex.glsl

@@ -65,8 +65,8 @@ void main()
 					  + BoneWeights2[3] * Bones[int(BoneIndices2[3])];
 	}
 
-	//gl_Position = MVP * boneTransform * vec4(Position, 1.0);
-	gl_Position = MVP * vec4(Position, 1.0);
+	gl_Position = MVP * boneTransform * vec4(Position, 1.0);
+	//gl_Position = MVP * vec4(Position, 1.0);
 
 	//TODO: Make sure that boneTransform works here.
 	Output.Position = (V * M * boneTransform * vec4(Position, 1.0)).xyz;

src/game/Core/Skeleton.cpp

@@ -48,10 +48,18 @@ dd::Skeleton::~Skeleton()
 	}
 }
 
-std::vector<glm::mat4> dd::Skeleton::GetFrameBones(std::string animationName, double time, bool noRootMotion /*= false*/)
+const dd::Skeleton::Animation* dd::Skeleton::GetAnimation(std::string name)
+{
+	auto it = Animations.find(name);
+	if (it != Animations.end()) {
+		return const_cast<const Animation*>(&it->second);
+	} else {
+		return nullptr;
+	}
+}
+
+std::vector<glm::mat4> dd::Skeleton::GetFrameBones(const Animation& animation, double time, bool noRootMotion /*= false*/)
 {
-	auto& animation = Animations.at(animationName);
-	
 	// HACK: Animation wrap-around
 	while (time < 0)
 		time += animation.Duration;
@@ -60,8 +68,8 @@ std::vector<glm::mat4> dd::Skeleton::GetFrameBones(std::string animationName, do
 
 	int currentKeyframeIndex = GetKeyframe(animation, time);
 
-	Animation::Keyframe& currentFrame = animation.Keyframes[currentKeyframeIndex];
-	Animation::Keyframe& nextFrame = animation.Keyframes[currentKeyframeIndex + 1];
+	const Animation::Keyframe& currentFrame = animation.Keyframes[currentKeyframeIndex];
+	const Animation::Keyframe& nextFrame = animation.Keyframes[currentKeyframeIndex + 1];
 	float alpha = (time - currentFrame.Time) / (nextFrame.Time - currentFrame.Time);
 
 	//auto animationFrame = Animations[""].Keyframes[frame];
@@ -75,7 +83,7 @@ std::vector<glm::mat4> dd::Skeleton::GetFrameBones(std::string animationName, do
 	return finalMatrices;
 }
 
-void dd::Skeleton::AccumulateBoneTransforms(bool noRootMotion, Animation::Keyframe &currentFrame, Animation::Keyframe &nextFrame, float progress, std::map<int, glm::mat4> &boneMatrices, Bone* bone, glm::mat4 parentMatrix)
+void dd::Skeleton::AccumulateBoneTransforms(bool noRootMotion, const Animation::Keyframe &currentFrame, const Animation::Keyframe &nextFrame, float progress, std::map<int, glm::mat4> &boneMatrices, const Bone* bone, glm::mat4 parentMatrix)
 {
 	glm::mat4 boneMatrix;
 
@@ -120,7 +128,7 @@ void dd::Skeleton::PrintSkeleton()
 	PrintSkeleton(RootBone, 0);
 }
 
-void dd::Skeleton::PrintSkeleton(Bone* bone, int depthCount)
+void dd::Skeleton::PrintSkeleton(const Bone* bone, int depthCount)
 {
 	std::stringstream ss;
 	ss << std::string(depthCount, ' ');
@@ -134,7 +142,7 @@ void dd::Skeleton::PrintSkeleton(Bone* bone, int depthCount)
 	}
 }
 
-int dd::Skeleton::GetKeyframe(Animation& animation, double time)
+int dd::Skeleton::GetKeyframe(const Animation& animation, double time)
 {
 	if (time < 0)
 		time = 0;
@@ -143,7 +151,7 @@ int dd::Skeleton::GetKeyframe(Animation& animation, double time)
 
 	for (int keyframe = 0; keyframe < animation.Keyframes.size(); ++keyframe) {
 		if (animation.Keyframes[keyframe].Time > time)
-			return keyframe - 1;
+			return glm::max(0, keyframe - 1); // HACK: If the time is less than the first keyframe, don
 	}
 
 	return 0;

src/game/Game/BallSystem.cpp

@@ -35,7 +35,9 @@ void dd::Systems::BallSystem::Initialize()
         transform->Scale = glm::vec3(0.3f, 0.3f, 0.3f);
         transform->Velocity = glm::vec3(0.f, 0.f, 0.f);
         auto model = m_World->AddComponent<Components::Model>(ent);
-        model->ModelFile = "Models/Test/Ball/Sid.obj";
+        model->ModelFile = "Models/Sid/Sid.dae";
+		auto animation = m_World->AddComponent<Components::Animation>(ent);
+		animation->Speed = 1.0;
         std::shared_ptr<Components::CircleShape> circleShape = m_World->AddComponent<Components::CircleShape>(ent);
         circleShape->Radius = 0.4f;
         std::shared_ptr<Components::Ball> ball = m_World->AddComponent<Components::Ball>(ent);
@@ -421,7 +423,7 @@ void dd::Systems::BallSystem::CreateLife(int number)
     lifeNr->Number = number;
 
     auto model = m_World->AddComponent<Components::Model>(life);
-    model->ModelFile = "Models/Test/Ball/Sid.obj";
+    model->ModelFile = "Models/Sid/Sid.dae";
 
 
     m_World->CommitEntity(life);

src/game/Rendering/AnimationSystem.cpp

@@ -0,0 +1,20 @@
+#include "PrecompiledHeader.h"
+#include "Rendering/AnimationSystem.h"
+
+void dd::Systems::AnimationSystem::RegisterComponents(ComponentFactory* cf)
+{
+	cf->Register<Components::Animation>();
+}
+
+void dd::Systems::AnimationSystem::Update(double dt)
+{
+	auto animations = m_World->GetComponentsOfType<Components::Animation>();
+	if (animations == nullptr) {
+		return;
+	}
+
+	for (auto& component : *animations) {
+		auto animation = static_cast<Components::Animation*>(component.get());
+		animation->Time += animation->Speed * dt;
+	}
+}