+Unity Runtime codeHEADmaster

1 files changed, 48 insertions, 0 deletions

diff --git a/Runtime/Dynamics/RaycastHit.cpp b/Runtime/Dynamics/RaycastHit.cpp
new file mode 100644
index 0000000..b888d5e
--- /dev/null
+++ b/Runtime/Dynamics/RaycastHit.cpp
@@ -0,0 +1,48 @@
+#include "UnityPrefix.h"
+#if ENABLE_PHYSICS
+#include "RaycastHit.h"
+#include "MeshCollider.h"
+#include "Runtime/Filters/Mesh/LodMesh.h"
+#include "Runtime/Terrain/Heightmap.h"
+#include "Runtime/Graphics/Transform.h"
+#include "Runtime/Dynamics/TerrainCollider.h"
+
+Vector2f CalculateRaycastTexcoord (Collider* collider, const Vector2f& uv, const Vector3f& pos, UInt32 face, int texcoord)
+{
+	MeshCollider* meshCollider = dynamic_pptr_cast<MeshCollider*> (collider);
+	if (meshCollider != NULL)
+	{
+		Mesh* mesh = meshCollider->GetSharedMesh();
+		if (mesh == NULL)
+			return Vector2f::zero;
+		UInt32 indices[3];
+		if (!mesh->ExtractTriangle (face, indices))
+			return Vector2f::zero;
+		StrideIterator<Vector2f> uvs;
+		if (texcoord == 1 && mesh->IsAvailable (kShaderChannelTexCoord1))
+			uvs = mesh->GetUvBegin (1);
+		else if (mesh->IsAvailable (kShaderChannelTexCoord0))
+			uvs = mesh->GetUvBegin (0);
+		else
+			return Vector2f::zero;
+		Vector2f interpolated = uvs[indices[1]] * uv.x;
+		interpolated += uvs[indices[2]] * uv.y;
+		interpolated += uvs[indices[0]] * (1.0F - (uv.y + uv.x));
+		return interpolated;
+	}
+#if ENABLE_TERRAIN
+	TerrainCollider* terrainCollider = dynamic_pptr_cast<TerrainCollider*> (collider);
+	if (terrainCollider)
+	{
+		Vector2f uv;
+		Vector3f scale = terrainCollider->GetCachedInvSize();
+		Vector3f transformPos = terrainCollider->GetComponent(Transform).GetPosition();
+		uv.x = scale.x * (pos.x - transformPos.x);
+		uv.y = scale.z * (pos.z - transformPos.z);
+		return uv;
+	}
+	else
+#endif // ENABLE_TERRAIN
+		return Vector2f::zero;
+}
+#endif //ENABLE_PHYSICS