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authormadmaxoft <github@xoft.cz>2013-09-03 09:41:31 +0200
committermadmaxoft <github@xoft.cz>2013-09-03 09:41:31 +0200
commit2c5e566fe7de5399fac5588671b2b6f611e6bda6 (patch)
tree884cab11e669836b68389e8cc6df555a6842d3f9 /source/Entities/ProjectileEntity.cpp
parentAdded cArrowEntity's criticalness to the API. (diff)
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Diffstat (limited to 'source/Entities/ProjectileEntity.cpp')
-rw-r--r--source/Entities/ProjectileEntity.cpp47
1 files changed, 26 insertions, 21 deletions
diff --git a/source/Entities/ProjectileEntity.cpp b/source/Entities/ProjectileEntity.cpp
index c259cb52f..b97f72884 100644
--- a/source/Entities/ProjectileEntity.cpp
+++ b/source/Entities/ProjectileEntity.cpp
@@ -41,8 +41,22 @@ protected:
if (g_BlockIsSolid[a_BlockType])
{
// The projectile hit a solid block
- m_Projectile->OnHitSolidBlock(a_BlockX, a_BlockY, a_BlockZ, a_EntryFace);
- return true;
+ // Calculate the exact hit coords:
+ cBoundingBox bb(a_BlockX, a_BlockX + 1, a_BlockY, a_BlockY + 1, a_BlockZ, a_BlockZ + 1);
+ Vector3d Line1 = m_Projectile->GetPosition();
+ Vector3d Line2 = Line1 + m_Projectile->GetSpeed();
+ double LineCoeff = 0;
+ char Face;
+ if (bb.CalcLineIntersection(Line1, Line2, LineCoeff, Face))
+ {
+ Vector3d Intersection = Line1 + m_Projectile->GetSpeed() * LineCoeff;
+ m_Projectile->OnHitSolidBlock(Intersection, Face);
+ return true;
+ }
+ else
+ {
+ LOGD("WEIRD! block tracer reports a hit, but BBox tracer doesn't. Ignoring the hit.");
+ }
}
// Convey some special effects from special blocks:
@@ -206,26 +220,17 @@ cProjectileEntity * cProjectileEntity::Create(eKind a_Kind, cEntity * a_Creator,
-void cProjectileEntity::OnHitSolidBlock(int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace)
+void cProjectileEntity::OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace)
{
- // TODO: Set proper position based on what face was hit
- switch (a_BlockFace)
- {
- case BLOCK_FACE_TOP: SetPosition(0.5 + a_BlockX, 1.0 + a_BlockY, 0.5 + a_BlockZ); break;
- case BLOCK_FACE_BOTTOM: SetPosition(0.5 + a_BlockX, a_BlockY, 0.5 + a_BlockZ); break;
- case BLOCK_FACE_EAST: SetPosition( a_BlockX, 0.5 + a_BlockY, 0.5 + a_BlockZ); break;
- case BLOCK_FACE_WEST: SetPosition(1.0 + a_BlockX, 0.5 + a_BlockY, 0.5 + a_BlockZ); break;
- case BLOCK_FACE_NORTH: SetPosition(0.5 + a_BlockX, 0.5 + a_BlockY, 1.0 + a_BlockZ); break;
- case BLOCK_FACE_SOUTH: SetPosition(0.5 + a_BlockX, 0.5 + a_BlockY, a_BlockZ); break;
- case BLOCK_FACE_NONE: SetPosition(0.5 + a_BlockX, 0.5 + a_BlockY, 0.5 + a_BlockZ); break;
- }
+ // Set the position based on what face was hit:
+ SetPosition(a_HitPos);
SetSpeed(0, 0, 0);
// DEBUG:
LOGD("Projectile %d: pos {%.02f, %.02f, %.02f}, hit solid block at face %d",
m_UniqueID,
- GetPosX(), GetPosY(), GetPosZ(),
- a_BlockFace
+ a_HitPos.x, a_HitPos.y, a_HitPos.z,
+ a_HitFace
);
m_IsInGround = true;
@@ -287,7 +292,7 @@ void cProjectileEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk)
// Something has been hit, abort all other processing
return;
}
- // The tracer also checks the blocks for slowdown blocks - water and lava - and stores it for later
+ // The tracer also checks the blocks for slowdown blocks - water and lava - and stores it for later in its SlowdownCoeff
// Test for entity collisions:
cProjectileEntityCollisionCallback EntityCollisionCallback(this, Pos, NextPos);
@@ -430,7 +435,7 @@ cThrownEggEntity::cThrownEggEntity(cEntity * a_Creator, double a_X, double a_Y,
-void cThrownEggEntity::OnHitSolidBlock(int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace)
+void cThrownEggEntity::OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace)
{
// TODO: Random-spawn a chicken or four
@@ -454,13 +459,13 @@ cThrownEnderPearlEntity::cThrownEnderPearlEntity(cEntity * a_Creator, double a_X
-void cThrownEnderPearlEntity::OnHitSolidBlock(int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace)
+void cThrownEnderPearlEntity::OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace)
{
// Teleport the creator here, make them take 5 damage:
if (m_Creator != NULL)
{
// TODO: The coords might need some tweaking based on the block face
- m_Creator->TeleportToCoords(a_BlockX + 0.5, a_BlockY + 1.7, a_BlockZ + 0.5);
+ m_Creator->TeleportToCoords(a_HitPos.x + 0.5, a_HitPos.y + 1.7, a_HitPos.z + 0.5);
m_Creator->TakeDamage(dtEnderPearl, this, 5, 0);
}
@@ -484,7 +489,7 @@ cThrownSnowballEntity::cThrownSnowballEntity(cEntity * a_Creator, double a_X, do
-void cThrownSnowballEntity::OnHitSolidBlock(int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace)
+void cThrownSnowballEntity::OnHitSolidBlock(const Vector3d & a_HitPos, char a_HitFace)
{
// TODO: Apply damage to certain mobs (blaze etc.) and anger all mobs