Physics, joints, and other goodies

SK83RJOSH · Nov 23, 2020 · 04414ee · 04414ee
1 parent 22b268d
commit 04414ee
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Showing 4 changed files with 89 additions and 13 deletions.
diff --git a/entities/joint.h b/entities/joint.h
@@ -19,11 +19,12 @@ namespace Teardown { namespace Entities {
 		Joint* m_AttachmentJoint0;
 		Joint* m_AttachmentJoint1;
 		Type m_JointType;
-		float m_Strength;
-		uint8_t field_50;
+		float m_Size;
+		bool m_Collide;
 		bool m_IsConnected; uint8_t pad_52[2];
 		float m_Stiffness;
-		int64_t field_58;
+		float m_Springiness;
+		int32_t field_5C;
 		int64_t field_60;
 		Vector3_f32 m_AttachmentPosition0;
 		Vector3_f32 m_AttachmentPosition1;
@@ -33,9 +34,13 @@ namespace Teardown { namespace Entities {
 		Vector2_f32 m_Limits; // In meters or radians depending on joint type
 		Vector2_f32 m_Motor;
 		int64_t field_B8; // Pointer to unidentified structure; only used with Wire type
-		bool field_C0; uint8_t pad_C1[7];
+		bool m_Sound; uint8_t pad_C1[7];
 
 		inline static function_signature<bool(__fastcall*)(Joint* ptr, Entity* parent)> Constructor = { "\x40\x53\x48\x83\xEC\x20\x4C\x8B\xC2\x48\x8B\xD9\xBA\x2A\x2A\x2A\x2A\xE8\x2A\x2A\x2A\x2A\xC7\x43\x2A\x2A\x2A\x2A\x2A\x48\x8D\x05\x2A\x2A\x2A\x2A\x48\x89\x03\x33\xC0\x48\x89\x43\x28\x48\x89\x43\x30\x48\x89\x43\x38\x48\x89\x43\x40\x89\x43\x48\x66\xC7\x43\x2A\x2A\x2A\xC7\x43\x2A\x2A\x2A\x2A\x2A\x48\xC7\x43\x2A\x2A\x2A\x2A\x2A\x48\x89\x43\x60\x48\x89\x43\x68\x48\x89\x43\x70\x48\x89\x43\x78\x48\x89\x83\x2A\x2A\x2A\x2A\x48\x89\x83\x2A\x2A\x2A\x2A\x48\x89\x83\x2A\x2A\x2A\x2A\x48\x89\x83\x2A\x2A\x2A\x2A\x89\x83\x2A\x2A\x2A\x2A\x48\xC7\x83\x2A\x2A\x2A\x2A\x2A\x2A\x2A\x2A\x48\x89\x83\x2A\x2A\x2A\x2A\x89\x83\x2A\x2A\x2A\x2A\x48\x89\x83\x2A\x2A\x2A\x2A\x88\x83\x2A\x2A\x2A\x2A\x48\x8B\xC3\x48\x83\xC4\x20\x5B\xC3" };
+		inline static function_signature<bool(__fastcall*)(Joint* ptr, Transform* transform, float size, float strength, float springiness, bool collide)> InitBall = { "\x48\x89\x5C\x24\x2A\x48\x89\x6C\x24\x2A\x48\x89\x74\x24\x2A\x48\x89\x7C\x24\x2A\x41\x56\x48\x83\xEC\x40\x0F\xB6\x44\x24\x2A\x4C\x8D\x49\x30\xF3\x0F\x10\x44\x24\x2A\x4C\x8D\x41\x28\x45\x33\xF6\xF3\x0F\x11\x41" };
+		inline static function_signature<bool(__fastcall*)(Joint* ptr, Transform* transform, float size, float strength, int64_t springiness, bool collide, Vector2_f32* limits)> InitHinge = { "\x40\x55\x56\x41\x54\x41\x56\x41\x57\x48\x8B\xEC\x48\x83\xEC\x40\x0F\xB6\x45\x58\x4C\x8D\x49\x30\xF3\x0F\x10\x45\x2A\x4C\x8D\x41\x28\x88\x41\x50\x45\x33\xE4\x48\x8B\x45\x60\x48\x8B\xF1\xF3\x0F\x11\x51\x2A\xF3\x0F\x11\x59\x2A\xF3\x0F\x11\x41\x2A\xC7\x41" };
+		inline static function_signature<bool(__fastcall*)(Joint* ptr, Transform* transform, float size, bool collide, Vector2_f32* limits)> InitPrismatic = { "\x40\x55\x56\x41\x54\x41\x56\x41\x57\x48\x8B\xEC\x48\x83\xEC\x40\x48\x8B\x45\x50\x4C\x8D\x41\x28\x44\x88\x49\x50\x45\x33\xE4\xF3\x0F\x11\x51" };
+		inline static function_signature<bool(__fastcall*)(Joint* ptr, const Vector3_f32& pos_0, const Vector3_f32& pos_1, float size, const Vector4_f32& color, float slack, float strength, float max_stretch)> InitWire = { "\x48\x8B\xC4\x55\x41\x56\x41\x57\x48\x8D\x68\xC1\x48\x81\xEC\x2A\x2A\x2A\x2A\x48\xC7\x45\x2A\x2A\x2A\x2A\x2A\x48\x89\x58\x08\x48\x89\x70\x10\x48\x89\x78\x18\x4C\x89\x60\x20\x4D\x8B\xF0\x4C\x8B\xFA\x48\x8B\xD9\xC7\x41" };
 		inline static function_signature<bool(__fastcall*)(Joint* ptr, Shape& shape_0, Shape& shape_1, const Vector3_f32& pos_0, const Vector3_f32& pos_1)> Attach = { "\x48\x89\x5C\x24\x2A\x48\x89\x74\x24\x2A\x57\x48\x83\xEC\x30\x48\x89\x51\x28\x48\x8B\xF1\x4C\x89\x41\x30\x49\x8B\xF8\x48\x8D\x4A\x34\x48\x8B\xDA\x48\x8D\x54\x24\x2A\x4D\x8B\xC1\xE8\x2A\x2A\x2A\x2A\x4C\x8B\x44\x24\x2A\x48\x8D\x4F\x34\x48\x8D\x54\x24\x2A\xF3\x0F\x10\x40\x2A\xF3\x0F\x10\x10\xF3\x0F\x58\x43\x2A\xF3\x0F\x10\x48\x2A\xF3\x0F\x58\x53\x2A\xF3\x0F\x58\x4B\x2A\xF3\x0F\x11\x44\x24\x2A\x8B\x44\x24\x28\x0F\x28\xC2\x0F\x14\xC1\xF2\x0F\x11\x46\x2A\x89\x46\x70\xE8" };
 		inline static function_signature<bool(__fastcall*)(Joint* ptr)> UpdateAngle = { "\x40\x53\x48\x83\xEC\x40\x48\x8B\x41\x28\x48\x8B\xD9\x48\x85\xC0\x74\x6D\x4C\x8B\x41\x30\x4D\x85\xC0\x74\x64\x48\x8B\x40\x10\x48\x8D\x54\x24\x2A\xF3\x0F\x10\x15\x2A\x2A\x2A\x2A\x48\x8D\x4C\x24\x2A\x4D\x8B\x40\x10\x49\x83\xC0\x34\xF3\x0F\x10\x40\x2A\xF3\x0F\x10\x48\x2A\x0F\x57\xC2\xF3\x0F\x11\x44\x24\x2A\x0F\x57\xCA\xF3\x0F\x10\x40\x2A\x0F\x57\xC2\xF3\x0F\x11\x4C\x24\x2A\xF3\x0F\x11\x44\x24\x2A\xF3\x0F\x10\x40\x2A\xF3\x0F\x11\x44\x24\x2A\xE8\x2A\x2A\x2A\x2A\x0F\x10\x44\x24\x2A\x0F\x11\x83\x2A\x2A\x2A\x2A\x48\x83\xC4\x40\x5B\xC3" };
 	};

diff --git a/physics_system.h b/physics_system.h
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "scene.h"
+#include "entities/body.h"
+#include "entities/shape.h"
+
+namespace Teardown {
+	struct Scene;
+
+#pragma pack(push, 1)
+	struct PhysicsSystem {
+		Scene* m_Scene;
+		uint8_t gap4[16];
+		int32_t field_18;
+		uint8_t gap1C[4];
+		int32_t field_20;
+		uint8_t gap24[28];
+		float m_UpdateInterval;
+		uint8_t gap44[4];
+		int32_t field_48;
+		uint8_t gap4C[10652];
+		int32_t field_29E8;
+		uint8_t gap29EC[76];
+		small_vector<Entities::Body*> m_ActiveBodies;
+		bool field_2A48;
+		uint8_t gap2A49[39];
+		int32_t field_2A70;
+		uint8_t gap2A74[92];
+		int32_t field_2AD0;
+		uint8_t gap2AD4[76];
+	};
+
+	static_assert(sizeof(PhysicsSystem) == 0x2B20u, "PhysicsSystem size is incorrect!");
+#pragma pack(pop)
+}
diff --git a/scene.h b/scene.h
@@ -1,8 +1,8 @@
 #pragma once
 
-
 #include "player.h"
 #include "fire_system.h"
+#include "physics_system.h"
 
 #include "entities/tag.h"
 #include "entities/entity.h"
@@ -30,13 +30,34 @@ namespace Teardown {
 			small_vector<Entities::Shape*> m_IgnoredShapes;
 		};
 
+		struct JointInfo
+		{
+			Entities::Joint* m_Joint;
+			Entities::Joint::Type m_Type;
+			Transform m_Transform;
+			bool m_Collide; uint8_t pad_29[3];
+			float m_Size;
+			float m_Stiffness;
+			float m_Springiness;
+			Vector3_f32 m_Position0;
+			Vector3_f32 m_Position1;
+			Vector4_f32 m_Color;
+			float m_Slack;
+			float m_Strength;
+			float m_MaxStretch;
+			Vector2_f32 m_Limits;
+			bool m_Sound; uint8_t pad_75[3];
+		};
+
 		int64_t vftptr_0;
-		uint64_t qword_8;
+		PhysicsSystem* m_PhysicsSystem;
 		uint64_t qword_10;
 		uint32_t dword_18;
 		uint32_t dword_1C;
 		uint64_t qword_20;
-		uint8_t gap_28[64];
+		uint8_t gap_28[24];
+		small_vector<JointInfo> m_PendingJoints;
+		uint8_t gap_38[24];
 		uint64_t qword_68;
 		uint64_t qword_70;
 		uint64_t qword_78;
@@ -49,7 +70,7 @@ namespace Teardown {
 		uint64_t qword_B0;
 		uint64_t qword_B8;
 		uint64_t qword_C0;
-		Transform m_PlayerTransform;
+		Transform m_SpawnPoint;
 		uint8_t gap_E4[12];
 		uint64_t qword_F0;
 		uint8_t byte_F8; uint8_t pad_F9[7];
@@ -58,7 +79,7 @@ namespace Teardown {
 		uint64_t qword_110;
 		uint64_t qword_118;
 		Entities::Vehicle* m_ActiveVehicle;
-		uint64_t m_ActiveScreen;
+		Entities::Screen* m_ActiveScreen;
 		uint64_t qword_130;
 		uint32_t dword_138;
 		uint32_t dword_13C;
@@ -87,8 +108,10 @@ namespace Teardown {
 		uint64_t qword_2A8;
 		small_vector<Entities::Tag> m_EntityTags;
 		uint32_t m_NextEntityId;
-		uint32_t dword_2C8;
-		uint8_t gap_2CC[1144];
+		uint32_t dword_2C4;
+		uint8_t gap_2C8[616];
+		small_vector<Vector2_f32> m_BoundaryVertices;
+		uint8_t gap_540[512];
 		uint32_t dword_740;
 		bool m_CanQuickLoad;
 		uint8_t gap_745[3];
@@ -111,7 +134,9 @@ namespace Teardown {
 		inline static function_signature<bool(__fastcall*)(Scene* ptr, Vector3_f32* pos, Vector3_f32* dir, __int32 type)> CreateProjectile = { "\x48\x89\x5C\x24\x08\x57\x48\x81\xEC\x80\x00\x00\x00" };
 	};
 
+
 	static_assert(sizeof(Scene::RaycastFilter) == 0x50u, "Scene::RaycastFilter size is incorrect!");
+	static_assert(sizeof(Scene::JointInfo) == 0x78u, "Scene::JointInfo size incorrect!");
 	static_assert(sizeof(Scene) == 0x810u, "Scene size is incorrect!");
 #pragma pack(pop)
 }
diff --git a/types.h b/types.h
@@ -142,7 +142,7 @@ namespace Teardown {
 	  * It does not support:
 	  *     Copying and assignment
 	  *     Non-trivially constructible types
-	  *     Insertion, deletion, modification
+	  *     Deletion
 	  *
 	  * You are welcome to submit pull requests for these if you wish.
 	  */
@@ -161,6 +161,17 @@ namespace Teardown {
 		uint32_t size() const { return m_Size; }
 		uint32_t capacity() const { return m_Capacity; }
 
+		void push_back(const T& value)
+		{
+			if (m_Capacity <= m_Size)
+			{
+				reserve(2 * m_Capacity + 1);
+			}
+
+			m_Data[m_Size] = value;
+			++m_Size;
+		}
+
 		void reserve(uint32_t capacity) {
 			if (auto memory = MemoryNew<T>(capacity))
 			{
@@ -230,5 +241,5 @@ namespace Teardown {
 	};
 
 	static_assert(sizeof(small_string) == 16, "small_string size is incorrect!");
-	static_assert(sizeof(small_vector<void>) == 16, "small_vector size is incorrect!");
+	static_assert(sizeof(small_vector<uint8_t>) == 16, "small_vector size is incorrect!");
 };