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-rw-r--r--src/vehicles/Door.cpp126
1 files changed, 126 insertions, 0 deletions
diff --git a/src/vehicles/Door.cpp b/src/vehicles/Door.cpp
new file mode 100644
index 00000000..ec5eb223
--- /dev/null
+++ b/src/vehicles/Door.cpp
@@ -0,0 +1,126 @@
+#include "common.h"
+#include "patcher.h"
+#include "Vehicle.h"
+#include "Door.h"
+
+CDoor::CDoor(void)
+{
+ memset(this, 0, sizeof(*this));
+}
+
+void
+CDoor::Open(float ratio)
+{
+ float open;
+
+ m_fPrevAngle = m_fAngle;
+ open = RetAngleWhenOpen();
+ if(ratio < 1.0f){
+ m_fAngle = open*ratio;
+ if(m_fAngle == 0.0f)
+ m_fAngVel = 0.0f;
+ }else{
+ m_nDoorState = DOORST_OPEN;
+ m_fAngle = open;
+ }
+}
+
+void
+CDoor::Process(CVehicle *vehicle)
+{
+ static CVector vecOffset(1.0f, 0.0f, 0.0f);
+ CVector speed = vehicle->GetSpeed(vecOffset);
+ CVector vecSpeedDiff = speed - m_vecSpeed;
+ vecSpeedDiff = Multiply3x3(vecSpeedDiff, vehicle->GetMatrix());
+
+ // air resistance
+ float fSpeedDiff = 0.0f; // uninitialized in game
+ switch(m_nAxis){
+ case 0: // x-axis
+ if(m_nDirn)
+ fSpeedDiff = vecSpeedDiff.y + vecSpeedDiff.z;
+ else
+ fSpeedDiff = -(vecSpeedDiff.y + vecSpeedDiff.z);
+ break;
+
+ // we don't support y axis apparently?
+
+ case 2: // z-axis
+ if(m_nDirn)
+ fSpeedDiff = -(vecSpeedDiff.x + vecSpeedDiff.y);
+ else
+ fSpeedDiff = vecSpeedDiff.x + vecSpeedDiff.y;
+ break;
+ }
+ fSpeedDiff = clamp(fSpeedDiff, -0.2f, 0.2f);
+ if(fabs(fSpeedDiff) > 0.002f)
+ m_fAngVel += fSpeedDiff;
+ m_fAngVel *= 0.945f;
+ m_fAngVel = clamp(m_fAngVel, -0.3f, 0.3f);
+
+ m_fAngle += m_fAngVel;
+ m_nDoorState = DOORST_SWINGING;
+ if(m_fAngle > m_fMaxAngle){
+ m_fAngle = m_fMaxAngle;
+ m_fAngVel *= -0.8f;
+ m_nDoorState = DOORST_OPEN;
+ }
+ if(m_fAngle < m_fMinAngle){
+ m_fAngle = m_fMinAngle;
+ m_fAngVel *= -0.8f;
+ m_nDoorState = DOORST_CLOSED;
+ }
+ m_vecSpeed = speed;
+}
+
+float
+CDoor::RetAngleWhenClosed(void)
+{
+ if(fabs(m_fMaxAngle) < fabs(m_fMinAngle))
+ return m_fMaxAngle;
+ else
+ return m_fMinAngle;
+}
+
+float
+CDoor::RetAngleWhenOpen(void)
+{
+ if(fabs(m_fMaxAngle) < fabs(m_fMinAngle))
+ return m_fMinAngle;
+ else
+ return m_fMaxAngle;
+}
+
+float
+CDoor::GetAngleOpenRatio(void)
+{
+ float open = RetAngleWhenOpen();
+ if(open == 0.0f)
+ return 0.0f;
+ return m_fAngle/open;
+}
+
+bool
+CDoor::IsFullyOpen(void)
+{
+ // why -0.5? that's around 28 deg less than fully open
+ if(fabs(m_fAngle) < fabs(RetAngleWhenOpen()) - 0.5f)
+ return false;
+ return true;
+}
+
+bool
+CDoor::IsClosed(void)
+{
+ return m_fAngle == RetAngleWhenClosed();
+}
+
+STARTPATCHES
+ InjectHook(0x545EF0, &CDoor::Open, PATCH_JUMP);
+ InjectHook(0x545BD0, &CDoor::Process, PATCH_JUMP);
+ InjectHook(0x545FE0, &CDoor::RetAngleWhenClosed, PATCH_JUMP);
+ InjectHook(0x546020, &CDoor::RetAngleWhenOpen, PATCH_JUMP);
+ InjectHook(0x545F80, &CDoor::GetAngleOpenRatio, PATCH_JUMP);
+ InjectHook(0x546090, &CDoor::IsFullyOpen, PATCH_JUMP);
+ InjectHook(0x546060, &CDoor::IsClosed, PATCH_JUMP);
+ENDPATCHES