work on d_a_npc, d_a_npc_ash, d_a_tag_evtarea (#345)

All credit goes to randomsalience

include/SSystem/SComponent/c_cc_d.h

@@ -458,6 +458,7 @@ public:
     void OffAtVsPlayerBit() { mObjAt.OffSPrmBit(0xC); }
     void OnAtVsPlayerBit() { mObjAt.OnSPrmBit(0xC); }
     void OnCoSPrmBit(u32 flag) { mObjCo.OnSPrmBit(flag); }
+    void SetTgSPrm(u32 prm) { mObjTg.SetSPrm(prm); }
     void SetCoSPrm(u32 prm) { mObjCo.SetSPrm(prm); }
 
 };  // Size = 0x40

include/SSystem/SComponent/c_lib.h

@@ -94,6 +94,11 @@ T cLib_calcTimer(T* value) {
     return *value;
 }
 
+template <typename T>
+T cLib_getRndValue(T min, T range) {
+    return (T)(min + cM_rndF((f32)range));
+}
+
 void MtxInit(void);
 void MtxTrans(f32, f32, f32, u8);
 void MtxScale(f32, f32, f32, u8);

include/SSystem/SComponent/c_math.h

@@ -18,11 +18,11 @@ float cM_rndF2(float);
 float cM_rndFX2(float);
 
 inline f32 cM_scos(s16 s) {
-    return JMath::sincosTable_.table[static_cast<u16>(s) >> 3].second;
+    return JMASCos(s);
 }
 
 inline f32 cM_ssin(s16 s) {
-    return JMath::sincosTable_.table[static_cast<u16>(s) >> 3].first;
+    return JMASSin(s);
 }
 
 inline s16 cM_deg2s(f32 val) {