xTimer: port stuff from el rato (#343)

src/SB/Core/x/xTimer.cpp

@@ -1,3 +1,82 @@
 #include "xTimer.h"
+#include "xMath.h"
 
 #include <types.h>
+
+static U32 sPauseTimerHash[] = 
+{
+    0xBC345600, 0xBC345609,
+    0xBC345683, 0xBC34568C,
+    0xBC345706, 0xBC34570F,
+    0xBC345789, 0xBC345792,
+    0xBC34580C, 0xBC345815,
+    0xBC34588F, 0xBC345898,
+    0xBC345912, 0xBC34591B,
+    0xBC345995, 0xBC34599E,
+    0xBC345A18, 0xBC345A21,
+    0xBC345A9B, 0xBC345AA4,
+};
+
+F32 GetRandomizedTime(xTimerAsset* tasset)
+{
+    U32 halfRangeMilli = 1000.0f * tasset->randomRange;
+    if (halfRangeMilli == 0) {
+        return tasset->seconds;
+    }
+
+    S32 offset = xrand() % (halfRangeMilli * 2) - halfRangeMilli;
+    F32 time = tasset->seconds + offset / 1000.0f;
+    return time;
+}
+
+void xTimerInit(void* b, void* tasset)
+{
+    xTimerInit((xBase*)b, (xTimerAsset*)tasset);
+}
+
+S32 xTimer_ObjIDIsPauseTimer(U32 id)
+{
+    if (id == 0xCB3F6340) return TRUE;
+    if (id >= 0x016FC9F0 && id <= 0x016FC9F9) return TRUE;
+
+    S32 foo = (id >= 0xBC345600);
+    S32 bar = (id <= 0xBC345AA4);
+    if (foo && bar) {
+        for (S32 i = 0; i < 10; i++) {
+            if (id >= sPauseTimerHash[i*2] && id <= sPauseTimerHash[i*2+1]) {
+                return TRUE;
+            }
+        }
+    }
+
+    return FALSE;
+}
+
+void xTimerInit(xBase* b, xTimerAsset* tasset)
+{
+    xBaseInit(b, tasset);
+
+    xTimer* t = (xTimer*)b;
+
+    t->eventFunc = xTimerEventCB;
+    t->tasset = tasset;
+
+    if (t->linkCount) {
+        t->link = (xLinkAsset*)((U8*)t->tasset + sizeof(xTimerAsset));
+    } else {
+        t->link = NULL;
+    }
+
+    t->state = 0;
+    t->secondsLeft = GetRandomizedTime(tasset);
+    t->runsInPause = xTimer_ObjIDIsPauseTimer(b->id);
+    t->flags = 0;
+}
+
+void xTimerReset(xTimer* ent)
+{
+    xBaseReset(ent, ent->tasset);
+    ent->state = 0;
+    ent->secondsLeft = GetRandomizedTime(ent->tasset);
+    ent->flags = 0;
+}

src/SB/Core/x/xTimer.h

@@ -21,8 +21,11 @@ struct xTimer : xBase
 struct xScene;
 
 void xTimerInit(void* b, void* tasset);
+void xTimerInit(xBase* b, xTimerAsset* tasset);
+void xTimerReset(xTimer* ent);
 void xTimerSave(xTimer* ent, xSerial* s);
 void xTimerLoad(xTimer* ent, xSerial* s);
+S32 xTimerEventCB(xBase*, xBase* to, U32 toEvent, const F32* toParam, xBase*);
 void xTimerUpdate(xBase* to, xScene*, F32 dt);
 
 #endif