zPlatform matches + fix typo (#378)

src/SB/Core/x/xEnt.cpp

@@ -128,7 +128,7 @@ void xEntAddHittableFlag(xEnt* ent)
 {
     if (ent->baseType == eBaseTypeNPC || ent->baseType == eBaseTypeDestructObj ||
         ent->baseType == eBaseTypeButton || ent->baseType == eBaseTypeBoulder ||
-        (ent->baseType == eBaseTypePlatform && ent->subType == ZPLATFROM_SUBTYPE_PADDLE))
+        (ent->baseType == eBaseTypePlatform && ent->subType == ZPLATFORM_SUBTYPE_PADDLE))
     {
         ent->moreFlags |= 0x10;
     }

src/SB/Core/x/xEntDrive.h

@@ -34,5 +34,6 @@ struct xEntDrive
 void xEntDriveInit(xEntDrive* drv, xEnt* driven);
 void xEntDriveMount(xEntDrive* drv, xEnt* driver, F32 mt, const xCollis* coll);
 void xEntDriveDismount(xEntDrive* drv, F32 dmt);
+void xEntDriveUpdate(xEntDrive* drv, xScene* s, F32 dt, xEntFrame* frame);
 
 #endif

src/SB/Game/zEntPlayer.h

@@ -391,6 +391,7 @@ void zEntPlayer_ShadowModelEnable();
 void zEntPlayer_ShadowModelDisable();
 
 void zEntPlayerJumpStart(class xEnt* ent, class zJumpParam* jump);
+bool zEntPlayer_IsSneaking();
 
 void zEntPlayer_setBoulderMode(U32 mode);
 void zEntPlayer_GiveHealth(S32);

src/SB/Game/zPlatform.cpp

@@ -1,7 +1,18 @@
 #include "zPlatform.h"
+#include "zEnt.h"
+#include "zEntPlayer.h"
+#include "xEntDrive.h"
+#include "zParEmitter.h"
+
+#include "xMath.h"
 
 #include <types.h>
 
+zParEmitter* sEmitTremble;
+zParEmitter* sEmitBreakaway;
+
+extern char stringBase0[];
+
 void genericPlatRender(xEnt* ent)
 {
     if (!ent->model || !xEntIsVisible(ent))
@@ -26,3 +37,97 @@ void zPlatform_Load(zPlatform* ent, xSerial* s)
 {
     zEntLoad(ent, s);
 }
+
+void zPlatform_Move(xEnt* entPlat, xScene* s, float dt, xEntFrame* frame)
+{
+    zPlatform* plat = (zPlatform*)entPlat;
+    xEntMotionMove(&plat->motion, s, dt, frame);
+    xEntDriveUpdate(&plat->drv, s, dt, NULL);
+}
+
+void zPlatform_Tremble(zPlatform* plat, float ampl, float freq, float dur);
+
+void zPlatform_Mount(zPlatform* ent)
+{
+    if (ent->subType == ZPLATFORM_SUBTYPE_BREAKAWAY)
+    {
+        if (ent->state == 0)
+        {
+            if ((ent->passet->ba.breakflags & 1) && zEntPlayer_IsSneaking())
+            {
+                ent->state = 1;
+            }
+            else
+            {
+                ent->state = 2;
+
+                // Needs to be used or the comparison's operands will be swapped.
+                F32 restingSpeed = 0.0f;
+                if ( ent->passet->fr.fspeed != restingSpeed )
+                {
+                    zPlatform_Tremble(ent, 0.06f, DEG2RAD(720), ent->passet->fr.fspeed + 1.0f);
+                }
+            }
+
+        }
+    }
+}
+
+void zPlatform_Setup(zPlatform* ent, xScene* sc)
+{
+    zEntSetup((zEnt *)ent);
+    sEmitTremble   = zParEmitterFind(stringBase0 + 0x36); // "PAREMIT_PLAT_TREMBLE"
+    sEmitBreakaway = zParEmitterFind(stringBase0 + 0x4b); // "PAREMIT_PLAT_BREAKAWAY"
+    if (ent->subType == ZPLATFORM_SUBTYPE_PADDLE)
+    {
+        ent->tmr = -1e38;
+        ent->state = 2;
+        ent->ctr = ent->passet->paddle.startOrient;
+    }
+}
+
+void zPlatformTranslate(xEnt* xent, xVec3* dpos, xMat4x3* dmat)
+{
+    zPlatform* plat = (zPlatform*)xent;
+    xEntDefaultTranslate(xent,dpos,dmat);
+    xEntMotionTranslate(&plat->motion, dpos, dmat);
+}
+
+void zPlatform_BreakawayFallFX(zPlatform* ent, F32 dt)
+{
+    if (sEmitBreakaway != NULL)
+    {
+        xParEmitterCustomSettings info;
+        info.custom_flags = 0x100;
+        info.pos = *xEntGetCenter(ent);
+        info.pos.y += 0.5f;
+        for (int iVar2 = 0; iVar2 < 25; iVar2++)
+        {
+            xParEmitterEmitCustom(sEmitBreakaway, 0.03333333f, &info);
+        }
+    }
+}
+
+U32 zMechIsStartingForth(zPlatform* ent, U16 param_2)
+{
+    if (ent->motion.asset->mech.type == 4)
+    {
+        return param_2 == 1;
+    }
+    else
+    {
+        return param_2 == 0;
+    }
+}
+
+U32 zMechIsStartingBack(zPlatform* ent, U16 param_2)
+{
+    if (ent->motion.asset->mech.type == 4)
+    {
+        return param_2 == 4;
+    }
+    else
+    {
+        return param_2 == 3;
+    }
+}

src/SB/Game/zPlatform.h

@@ -158,7 +158,7 @@ struct zPlatform : zEnt
 #define ZPLATFORM_SUBTYPE_BREAKAWAY 9
 #define ZPLATFORM_SUBTYPE_SPRINGBOARD 10
 #define ZPLATFORM_SUBTYPE_TEETER 11
-#define ZPLATFROM_SUBTYPE_PADDLE 12
+#define ZPLATFORM_SUBTYPE_PADDLE 12
 #define ZPLATFORM_SUBTYPE_FM 13
 
 void genericPlatRender(xEnt* ent);