mirror of https://github.com/zeldaret/mm.git
105 lines
3.6 KiB
C
105 lines
3.6 KiB
C
#include <ultra64.h>
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#include <global.h>
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// This file comes after z_bgcheck.c and contains functions to manage actors attached to Bg Actors.
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// Perhaps it is called something like z_bgcheck_attach.c
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// The functions will use the BgCheck2 prefix for now.
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void BgCheck2_UpdateActorPosition(CollisionContext* bgCtxt, s32 index, Actor* actor) {
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z_Matrix prevMatrix;
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z_Matrix prevMatrixInv;
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z_Matrix currMatrix;
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Vec3f newPos;
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Vec3f posWithInv;
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if (BgCheck_IsActorMeshIndexValid(index) == 0) return;
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Matrix_MakeTranslationRotationYXZScale(&prevMatrix,
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bgCtxt->dyna.actorMeshArr[index].prevParams.scale.x,
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bgCtxt->dyna.actorMeshArr[index].prevParams.scale.y,
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bgCtxt->dyna.actorMeshArr[index].prevParams.scale.z,
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bgCtxt->dyna.actorMeshArr[index].prevParams.rotation.x,
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bgCtxt->dyna.actorMeshArr[index].prevParams.rotation.y,
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bgCtxt->dyna.actorMeshArr[index].prevParams.rotation.z,
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bgCtxt->dyna.actorMeshArr[index].prevParams.pos.x,
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bgCtxt->dyna.actorMeshArr[index].prevParams.pos.y,
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bgCtxt->dyna.actorMeshArr[index].prevParams.pos.z);
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if (Matrix_Invert(&prevMatrix, &prevMatrixInv) == 2) return;
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Matrix_MakeTranslationRotationYXZScale(&currMatrix,
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bgCtxt->dyna.actorMeshArr[index].currParams.scale.x,
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bgCtxt->dyna.actorMeshArr[index].currParams.scale.y,
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bgCtxt->dyna.actorMeshArr[index].currParams.scale.z,
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bgCtxt->dyna.actorMeshArr[index].currParams.rotation.x,
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bgCtxt->dyna.actorMeshArr[index].currParams.rotation.y,
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bgCtxt->dyna.actorMeshArr[index].currParams.rotation.z,
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bgCtxt->dyna.actorMeshArr[index].currParams.pos.x,
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bgCtxt->dyna.actorMeshArr[index].currParams.pos.y,
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bgCtxt->dyna.actorMeshArr[index].currParams.pos.z);
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Matrix_MultiplyByVectorXYZ(&prevMatrixInv, &actor->currPosRot.pos, &posWithInv);
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Matrix_MultiplyByVectorXYZ(&currMatrix, &posWithInv, &newPos);
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actor->currPosRot.pos = newPos;
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}
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void BgCheck2_UpdateActorYRotation(CollisionContext* bgCtxt, s32 index, Actor* actor) {
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s16 angleChange;
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if (BgCheck_IsActorMeshIndexValid(index) == 0) return;
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angleChange = bgCtxt->dyna.actorMeshArr[index].currParams.rotation.y - bgCtxt->dyna.actorMeshArr[index].prevParams.rotation.y;
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if (actor->id == 0) {
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((ActorPlayer*)actor)->unkAD4 += angleChange;
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}
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actor->shape.rot.y += angleChange;
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actor->currPosRot.rot.y += angleChange;
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}
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void BgCheck2_AttachToMesh(CollisionContext* bgCtxt, Actor* actor, s32 index) {
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DynaPolyActor *meshActor;
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if (BgCheck_IsActorMeshIndexValid(index) == 0) return;
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meshActor = BgCheck_GetActorOfMesh(bgCtxt,index);
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if (meshActor != NULL) {
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func_800CAE88(meshActor);
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if ((actor->flags & 0x4000000) == 0x4000000) {
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func_800CAF24(meshActor);
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}
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if ((actor->flags & 0x20000) == 0x20000) {
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func_800CAF38(meshActor);
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}
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}
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}
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u32 BgCheck2_UpdateActorAttachedToMesh(CollisionContext* bgCtxt, s32 index, Actor* actor) {
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u32 wasUpdated = 0;
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DynaPolyActor *meshActor;
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if (BgCheck_IsActorMeshIndexValid(index) == 0) return 0;
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if (((bgCtxt->dyna.flags[index] & 2) != 0) || ((bgCtxt->dyna.flags[index] & 1) == 0)) return 0;
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meshActor = BgCheck_GetActorOfMesh(bgCtxt,index);
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if (meshActor == NULL) return 0;
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if ((meshActor->unk154 & 1) != 0) {
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BgCheck2_UpdateActorPosition(bgCtxt,index,actor);
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wasUpdated = 1;
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}
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if ((meshActor->unk154 & 2) != 0) {
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BgCheck2_UpdateActorYRotation(bgCtxt,index,actor);
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wasUpdated = 1;
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}
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return wasUpdated;
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}
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