JPAChildShape, more work on JPADynamicsBlock

include/JSystem/JParticle/JPABaseShape.h

@@ -99,11 +99,11 @@ public:
     f32 getBaseSizeY() const { return mpData->mBaseSizeY; }
 
 public:
-    const JPABaseShapeData* mpData;
-    const void* mpTexCrdMtxAnmTbl;
-    const u8* mpTexIdxAnimTbl;
-    GXColor* mpPrmClrAnmTbl;
-    GXColor* mpEnvClrAnmTbl;
+    /* 0x00 */ const JPABaseShapeData* mpData;
+    /* 0x04 */ const void* mpTexCrdMtxAnmTbl;
+    /* 0x08 */ const u8* mpTexIdxAnimTbl;
+    /* 0x0C */ GXColor* mpPrmClrAnmTbl;
+    /* 0x10 */ GXColor* mpEnvClrAnmTbl;
 };
 
 #endif /* JPABASESHAPE_H */

include/JSystem/JParticle/JPAChildShape.h

@@ -2,5 +2,43 @@
 #define JPACHILDSHAPE_H
 
 #include "dolphin/types.h"
+#include "dolphin/gx/GX.h"
+
+struct JPAChildShapeData {
+    // Common header.
+    /* 0x00 */ u8 mMagic[4];
+    /* 0x04 */ u32 mSize;
+
+    /* 0x08 */ u32 mFlags;
+    /* 0x0C */ f32 mPosRndm;
+    /* 0x10 */ f32 mBaseVel;
+    /* 0x14 */ f32 mBaseVelRndm;
+    /* 0x18 */ f32 mVelInfRate;
+    /* 0x1C */ f32 mGravity;
+    /* 0x20 */ f32 mScaleX;
+    /* 0x24 */ f32 mScaleY;
+    /* 0x28 */ f32 mInheritScale;
+    /* 0x2C */ f32 mInheritAlpha;
+    /* 0x30 */ f32 mInheritRGB;
+    /* 0x34 */ GXColor mPrmClr;
+    /* 0x38 */ GXColor mEnvClr;
+    /* 0x3C */ f32 mTiming;
+    /* 0x40 */ s16 mLife;
+    /* 0x42 */ s16 mRate;
+    /* 0x44 */ u8 mStep;
+    /* 0x45 */ u8 mTexIdx;
+    /* 0x46 */ s16 mRotSpeed;
+};
+
+class JPAChildShape {
+public:
+    /* 8027B038 */ JPAChildShape(u8 const*);
+
+    void getPrmClr(GXColor* dst) { *dst = mpData->mPrmClr; }
+    void getEnvClr(GXColor* dst) { *dst = mpData->mEnvClr; }
+
+public:
+    /* 0x00 */ const JPAChildShapeData* mpData;
+};
 
 #endif /* JPACHILDSHAPE_H */

include/JSystem/JParticle/JPADynamicsBlock.h

@@ -35,13 +35,21 @@ struct JPADynamicsBlockData {
     /* 0x70 */ s16 mStartFrame;
     /* 0x72 */ s16 mLifeTime;
     /* 0x74 */ s16 mVolumeSize;
-    /* 0x76 */ s16 mDivNumber;
+    /* 0x76 */ u16 mDivNumber;
     /* 0x78 */ u8 mRateStep;
     /* 0x7C */ u32 field_0x7c;
 };
 
 typedef void (*JPADynamicsCalcVolumeFunc)(JPAEmitterWorkData*);
 
+enum {
+    JPADynFlag_FixedDensity   = 0x01,
+    JPADynFlag_FixedInterval  = 0x02,
+    JPADynFlag_InheritScale   = 0x04,
+    JPADynFlag_FollowEmtr     = 0x08,
+    JPADynFlag_FollowEmtrChld = 0x10,
+};
+
 class JPADynamicsBlock {
 public:
     /* 8027BB18 */ JPADynamicsBlock(u8 const*);
@@ -52,10 +60,14 @@ public:
 
     s16 getStartFrame() const { return mpData->mStartFrame; }
     u32 getResUserWork() const { return mpData->mResUserWork; }
+    u32 getFlag() const { return mpData->mFlags; }
+    u32 getVolumeType() const { return (mpData->mFlags >> 8) & 0x07; }
+    u16 getDivNumber() const { return mpData->mDivNumber; }
+    f32 getRateRndm() const { return mpData->mRateRndm; }
 
 public:
-    JPADynamicsBlockData* mpData;
-    JPADynamicsCalcVolumeFunc mpCalcVolumeFunc;
+    /* 0x00 */ const JPADynamicsBlockData* mpData;
+    /* 0x04 */ JPADynamicsCalcVolumeFunc mpCalcVolumeFunc;
 };
 
 #endif /* JPADYNAMICSBLOCK_H */

include/JSystem/JParticle/JPAParticle.h

@@ -7,6 +7,9 @@
 #include "JSystem/JGeometry.h"
 #include "JSystem/JSupport/JSUList.h"
 
+#include "JSystem/JParticle/JPADynamicsBlock.h"
+#include "JSystem/JParticle/JPAResource.h"
+
 class JKRHeap;
 class JPABaseEmitter;
 class JPABaseParticle;
@@ -31,6 +34,30 @@ public:
     JPARandom() { mSeed = 0; }
     void set_seed(u32 seed) { mSeed = seed; }
 
+    u32 get_rndm_u() {
+        return mSeed = mSeed * 0x19660du + 0x3c6ef35fu;
+    }
+
+    f32 get_rndm_f() {
+        union { u32 u; f32 f; } a;
+        a.u = ((get_rndm_u() >> 9) | 0x3f800000);
+        return a.f - 1.0f;
+    }
+
+    f32 get_rndm_zp() {
+        f32 f = get_rndm_f();
+        return (f + f) - 1.0f;
+    }
+
+    f32 get_rndm_zh() {
+        f32 f = get_rndm_f();
+        return f - 1.0f;
+    }
+
+    s16 get_rndm_ss() {
+        return ((s16)get_rndm_u()) >> 16;
+    }
+
 public:
     u32 mSeed;
 };
@@ -175,6 +202,13 @@ public:
     /* 8027E6A4 */ ~JPAEmitterCallBack();
 };
 
+enum {
+    JPAEmtrStts_StopEmit     = 0x01,
+    JPAEmtrStts_StopCalc     = 0x02,
+    JPAEmtrStts_FirstEmit    = 0x10,
+    JPAEmtrStts_RateStepEmit = 0x20,
+};
+
 class JPABaseEmitter {
 public:
     /* 8027E5EC */ ~JPABaseEmitter();
@@ -191,11 +225,18 @@ public:
     /* 8027EF50 */ bool loadTexture(u8, GXTexMapID);
 
     void setStatus(u32 status) { mStatus |= status; }
+    void clearStatus(u32 status) { mStatus &= ~status; }
     bool checkStatus(u32 status) { return !!(mStatus & status); }
+    bool checkFlag(u32 flag) { return !!(mpRes->getDyn()->getFlag() & flag); }
     u8 getResourceManagerID() const { return mResMgrID; }
     u8 getGroupID() const { return mGroupID; }
     u8 getDrawTimes() const { return mDrawTimes; }
 
+    f32 get_r_f() { return mRndm.get_rndm_f(); }
+    f32 get_r_zp() { return mRndm.get_rndm_zp(); }
+    f32 get_r_zh() { return mRndm.get_rndm_zh(); }
+    s16 get_r_ss() { return mRndm.get_rndm_ss(); }
+
 public:
     /* 0x00 */ Vec mLocalScl;
     /* 0x0C */ Vec mLocalTrs;
@@ -235,7 +276,7 @@ public:
     /* 0xFC */ f32 mScaleOut;
     /* 0x100 */ u32 mTick;
     /* 0x104 */ s16 mWaitTime;
-    /* 0x106 */ u16 mRateStepTimer;
+    /* 0x106 */ s16 mRateStepTimer;
     /* 0x108 */ GXColor mPrmClr;
     /* 0x10C */ GXColor mEnvClr;
     /* 0x110 */ u8 mDrawTimes;
@@ -246,11 +287,15 @@ public:
 
 class JPAParticleCallBack {
 public:
-    ~JPAParticleCallBack();
+    virtual ~JPAParticleCallBack();
     virtual void execute(JPABaseEmitter*, JPABaseParticle*);
     virtual void draw(JPABaseEmitter*, JPABaseParticle*);
 };
 
+enum {
+    JPAPtclStts_Invisible = 0x08,
+};
+
 class JPABaseParticle {
 public:
     /* 8027EFEC */ void init_p(JPAEmitterWorkData*);