From acaae7a11e81e93fb0b5288ef830052e10a3d8f5 Mon Sep 17 00:00:00 2001 From: Tiger Wang Date: Thu, 29 Aug 2013 15:25:12 +0100 Subject: Physics enhancements Minecarts no longer glitch on flat rails Improved acceleration, speed limit, and stopping --- source/Entities/Entity.cpp | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'source/Entities/Entity.cpp') diff --git a/source/Entities/Entity.cpp b/source/Entities/Entity.cpp index 19a65ef4e..b9810aabb 100644 --- a/source/Entities/Entity.cpp +++ b/source/Entities/Entity.cpp @@ -499,6 +499,7 @@ void cEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk) int RelBlockX = BlockX - (NextChunk->GetPosX() * cChunkDef::Width); int RelBlockZ = BlockZ - (NextChunk->GetPosZ() * cChunkDef::Width); BLOCKTYPE BlockIn = NextChunk->GetBlock( RelBlockX, BlockY, RelBlockZ ); + BLOCKTYPE BlockBelow = NextChunk->GetBlock( RelBlockX, BlockY - 1, RelBlockZ ); if (!g_BlockIsSolid[BlockIn]) // Making sure we are not inside a solid block { if (m_bOnGround) // check if it's still on the ground @@ -540,13 +541,21 @@ void cEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk) } else { - //Friction - if (NextSpeed.SqrLength() > 0.0004f) + if ( + (BlockBelow != E_BLOCK_RAIL) && + (BlockBelow != E_BLOCK_DETECTOR_RAIL) && + (BlockBelow != E_BLOCK_POWERED_RAIL) && + (BlockBelow != E_BLOCK_ACTIVATOR_RAIL) + ) { - NextSpeed.x *= 0.7f/(1+a_Dt); - if ( fabs(NextSpeed.x) < 0.05 ) NextSpeed.x = 0; - NextSpeed.z *= 0.7f/(1+a_Dt); - if ( fabs(NextSpeed.z) < 0.05 ) NextSpeed.z = 0; + //Friction + if (NextSpeed.SqrLength() > 0.0004f) + { + NextSpeed.x *= 0.7f/(1+a_Dt); + if ( fabs(NextSpeed.x) < 0.05 ) NextSpeed.x = 0; + NextSpeed.z *= 0.7f/(1+a_Dt); + if ( fabs(NextSpeed.z) < 0.05 ) NextSpeed.z = 0; + } } } -- cgit v1.2.3