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mm/src/code/z_sub_s.c

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/*
* File: z_sub_s.c
* Description: Various miscellaneous helpers
*/
#include "global.h"
#include "overlays/actors/ovl_En_Door/z_en_door.h"
s16 sPathDayFlags[] = { 0x40, 0x20, 0x10, 8, 4, 2, 1, 0 };
#include "code/sub_s/sub_s.c"
Vec3f gOneVec3f = { 1.0f, 1.0f, 1.0f };
s32 D_801C5DBC[] = { 0, 1 }; // Unused
/**
* Finds the first EnDoor instance with unk_1A4 == 5 and the specified switchFlag.
*/
EnDoor* SubS_FindDoor(PlayState* play, s32 switchFlag) {
Actor* actor = NULL;
EnDoor* door;
while (true) {
actor = SubS_FindActor(play, actor, ACTORCAT_DOOR, ACTOR_EN_DOOR);
door = (EnDoor*)actor;
if (actor == NULL) {
break;
}
if ((door->unk_1A4 == 5) && (door->switchFlag == (u8)switchFlag)) {
break;
}
if (actor->next == NULL) {
door = NULL;
break;
}
actor = actor->next;
}
return door;
}
Gfx* SubS_DrawTransformFlexLimb(PlayState* play, s32 limbIndex, void** skeleton, Vec3s* jointTable,
OverrideLimbDraw overrideLimbDraw, PostLimbDraw postLimbDraw,
TransformLimbDraw transformLimbDraw, Actor* actor, Mtx** mtx, Gfx* gfx) {
StandardLimb* limb;
Gfx* newDList;
Gfx* limbDList;
Vec3f pos;
Vec3s rot;
Matrix_Push();
limb = Lib_SegmentedToVirtual(skeleton[limbIndex]);
limbIndex++;
rot = jointTable[limbIndex];
pos.x = limb->jointPos.x;
pos.y = limb->jointPos.y;
pos.z = limb->jointPos.z;
newDList = limbDList = limb->dList;
if ((overrideLimbDraw == NULL) || !overrideLimbDraw(play, limbIndex, &newDList, &pos, &rot, actor, &gfx)) {
Matrix_TranslateRotateZYX(&pos, &rot);
Matrix_Push();
transformLimbDraw(play, limbIndex, actor, &gfx);
if (newDList != NULL) {
Matrix_ToMtx(*mtx);
gSPMatrix(gfx++, *mtx, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
gSPDisplayList(gfx++, newDList);
(*mtx)++;
} else if (limbDList != NULL) {
Matrix_ToMtx(*mtx);
(*mtx)++;
}
Matrix_Pop();
}
if (postLimbDraw != NULL) {
postLimbDraw(play, limbIndex, &limbDList, &rot, actor, &gfx);
}
if (limb->child != LIMB_DONE) {
gfx = SubS_DrawTransformFlexLimb(play, limb->child, skeleton, jointTable, overrideLimbDraw, postLimbDraw,
transformLimbDraw, actor, mtx, gfx);
}
Matrix_Pop();
if (limb->sibling != LIMB_DONE) {
gfx = SubS_DrawTransformFlexLimb(play, limb->sibling, skeleton, jointTable, overrideLimbDraw, postLimbDraw,
transformLimbDraw, actor, mtx, gfx);
}
return gfx;
}
/**
* Draw all limbs of type `StandardLimb` in a given flexible skeleton
* Limbs in a flexible skeleton have meshes that can stretch to line up with other limbs.
* An array of matrices is dynamically allocated so each limb can access any transform to ensure its meshes line up.
*
* Also makes use of a `TransformLimbDraw`, which transforms limbs based on world coordinates, as opposed to local limb
* coordinates.
* Note that the `TransformLimbDraw` does not have a NULL check, so must be provided even if empty.
*/
Gfx* SubS_DrawTransformFlex(PlayState* play, void** skeleton, Vec3s* jointTable, s32 dListCount,
OverrideLimbDraw overrideLimbDraw, PostLimbDraw postLimbDraw,
TransformLimbDraw transformLimbDraw, Actor* actor, Gfx* gfx) {
StandardLimb* rootLimb;
s32 pad;
Gfx* newDlist;
Gfx* limbDList;
Vec3f pos;
Vec3s rot;
Mtx* mtx = GRAPH_ALLOC(play->state.gfxCtx, ALIGN16(dListCount * sizeof(Mtx)));
if (skeleton == NULL) {
return NULL;
}
gSPSegment(gfx++, 0x0D, mtx);
Matrix_Push();
rootLimb = Lib_SegmentedToVirtual(skeleton[0]);
pos.x = jointTable->x;
pos.y = jointTable->y;
pos.z = jointTable->z;
rot = jointTable[1];
newDlist = rootLimb->dList;
limbDList = rootLimb->dList;
if (overrideLimbDraw == NULL || !overrideLimbDraw(play, 1, &newDlist, &pos, &rot, actor, &gfx)) {
Matrix_TranslateRotateZYX(&pos, &rot);
Matrix_Push();
transformLimbDraw(play, 1, actor, &gfx);
if (newDlist != NULL) {
Matrix_ToMtx(mtx);
gSPMatrix(gfx++, mtx, G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
gSPDisplayList(gfx++, newDlist);
mtx++;
} else if (limbDList != NULL) {
Matrix_ToMtx(mtx);
mtx++;
}
Matrix_Pop();
}
if (postLimbDraw != NULL) {
postLimbDraw(play, 1, &limbDList, &rot, actor, &gfx);
}
if (rootLimb->child != LIMB_DONE) {
gfx = SubS_DrawTransformFlexLimb(play, rootLimb->child, skeleton, jointTable, overrideLimbDraw, postLimbDraw,
transformLimbDraw, actor, &mtx, gfx);
}
Matrix_Pop();
return gfx;
}
s32 SubS_InCsMode(PlayState* play) {
s32 inCsMode = false;
if (Play_InCsMode(play)) {
inCsMode = true;
}
return inCsMode;
}
/**
* Computes a limb's position and rotation for use in TransformLimbDraws
*
* @param[in] newRotZ value to override newRot's Z value if override is true
* @param[in] newRotY value to override newRot's Y value if override is true
* @param[out] pos limb's computed position
* @param[out] rot limb's computed rotation
* @param[in] stepRot boolean, step towards newRot instead of setting directly
* @param[in] overrideRot boolean, override newRot with the specified input.
*
* @note if overrideRot is true, the rotation will automatically step instead of setting directly
*/
s32 SubS_UpdateLimb(s16 newRotZ, s16 newRotY, Vec3f* pos, Vec3s* rot, s32 stepRot, s32 overrideRot) {
Vec3f newPos;
Vec3f zeroVec = gZeroVec3f;
Vec3s newRot;
MtxF curState;
Matrix_MultVec3f(&zeroVec, &newPos);
Matrix_Get(&curState);
Matrix_MtxFToYXZRot(&curState, &newRot, MTXMODE_NEW);
*pos = newPos;
if (!stepRot && !overrideRot) {
rot->x = newRot.x;
rot->y = newRot.y;
rot->z = newRot.z;
return true;
}
if (overrideRot) {
newRot.z = newRotZ;
newRot.y = newRotY;
}
Math_SmoothStepToS(&rot->x, newRot.x, 3, 0x2AA8, 0xB6);
Math_SmoothStepToS(&rot->y, newRot.y, 3, 0x2AA8, 0xB6);
Math_SmoothStepToS(&rot->z, newRot.z, 3, 0x2AA8, 0xB6);
return true;
}
void SubS_UpdateFlags(u16* flags, u16 setBits, u16 unsetBits) {
*flags = (*flags & ~unsetBits) | setBits;
}
/**
* Fills the knot array to be used with time paths
*
* The default knot array just pads with `order` duplicate knots of the first knot at the front and of the last knot
* at the end.
*
* @param[out] knots an array of values that are used to compute the progress and the individual weights
* @param[in] order the order of the interpolation i.e. the number of points in the interpolation
* @param[in] numPoints the number of points to fill, generally the path count + order
*
* @note Same note as SubS_TimePathing_Update()
*/
void SubS_TimePathing_FillKnots(f32 knots[], s32 order, s32 numPoints) {
s32 i;
f32 val = 0.0f;
for (i = 0; i < numPoints; i++) {
if ((i >= order) && (i < (numPoints - order + 1))) {
val += 1.0f;
}
knots[i] = val;
}
}
typedef enum {
/* 0 */ SUBS_TIME_PATHING_PROGRESS_STATUS_ERROR,
/* 1 */ SUBS_TIME_PATHING_PROGRESS_STATUS_STILL_ON_PATH,
/* 2 */ SUBS_TIME_PATHING_PROGRESS_STATUS_SHOULD_REACH_END
} SUBS_TIME_PATHING_PROGRESS_STATUS;
/**
* Computes the progress to be used with time paths
*
* @param[out] progress the progress along the path, used to compute the weights
* @param[in] elapsedTime how much time has passed
* @param[in] waypointTime how much time per each waypoint
* @param[in] totalTime how much time the path should take to travel
* @param[in] pathCount the path count
* @param[in] order the order of the interpolation i.e. the number of points in the interpolation
* @param[in] knots see SubS_TimePathing_FillKnots()
*
* @return see SUBS_TIME_PATHING_PROGRESS_STATUS
*/
s32 SubS_TimePathing_ComputeProgress(f32* progress, s32 elapsedTime, s32 waypointTime, s32 totalTime, s32 pathCount,
s32 order, f32 knots[]) {
s32 i;
s32 j;
s32 k;
f32 waypointTimeInv; // The fraction of a waypoint a single unit of time contains
*progress = 0.0f;
if ((waypointTime <= 0) || (elapsedTime < 0)) {
return SUBS_TIME_PATHING_PROGRESS_STATUS_ERROR;
}
// When using the knots from SubS_TimePathing_FillKnots() these nested loops seem to simplify to
// *progress = (f32)elapsedTime / (f32)waypointTime;
waypointTimeInv = 1.0f / waypointTime;
k = 0;
for (i = order - 1; i < pathCount; i++) {
for (j = 0; j < waypointTime; j++) {
if (k == elapsedTime) {
break;
}
*progress += (knots[i + 1] - knots[i]) * waypointTimeInv;
k++;
}
}
return (elapsedTime == totalTime) ? SUBS_TIME_PATHING_PROGRESS_STATUS_SHOULD_REACH_END
: SUBS_TIME_PATHING_PROGRESS_STATUS_STILL_ON_PATH;
}
/**
* Computes the interpolation weights to be used with time paths
*
* Seems to use some kind of B-Spline interpolation algorithm
*
* @param[in] order the order of the interpolation i.e. the number of points in the interpolation, max is 10
* @param[in] progress see SubS_TimePathing_ComputeProgress()
* @param[in] waypoint the current waypoint
* @param[in] knots see SubS_TimePathing_FillKnots()
* @param[out] weights how much to weight each point considered
*/
void SubS_TimePathing_ComputeWeights(s32 order, f32 progress, s32 waypoint, f32 knots[], f32 weights[]) {
f32 weightsTemp[10][11];
s32 i;
s32 j;
s32 k;
for (i = 0; i < order; i++) {
for (j = 0; j < order + 1; j++) {
weightsTemp[i][j] = 0.0f;
}
}
weightsTemp[0][order - 1] = 1.0f;
for (i = 1; i < order; i++) {
for (j = waypoint - i, k = (order - 1) - i; j <= waypoint; j++, k++) {
if (knots[j + i] != knots[j]) {
weightsTemp[i][k] = ((progress - knots[j]) / (knots[j + i] - knots[j])) * weightsTemp[i - 1][k];
} else {
weightsTemp[i][k] = 0.0f;
}
if (knots[j + i + 1] != knots[j + 1]) {
weightsTemp[i][k] +=
((knots[j + i + 1] - progress) / (knots[j + i + 1] - knots[j + 1])) * weightsTemp[i - 1][k + 1];
}
}
}
for (j = 0; j < order; j++) {
weights[j] = weightsTemp[order - 1][j];
}
}
/**
* Computes the X and Z component of the position to move to in time based paths
*
* @param[out] x computed x position
* @param[out] z computed z position
* @param[in] progress see SubS_TimePathing_ComputeProgress()
* @param[in] order the order of the interpolation i.e. the number of points in the interpolation, max is 10
* @param[in] waypoint the current waypoint
* @param[in] points the path's points
* @param[in] knots see SubS_TimePathing_FillKnots()
*/
void SubS_TimePathing_ComputeTargetPosXZ(f32* x, f32* z, f32 progress, s32 order, s32 waypoint, Vec3s points[],
f32 knots[]) {
f32 xPos;
f32 zPos;
f32 weights[11];
f32 weightedX;
f32 weightedZ;
f32 weightedTotal;
s32 i;
SubS_TimePathing_ComputeWeights(order, progress, waypoint, knots, weights);
weightedTotal = 0.0f;
weightedZ = 0.0f;
weightedX = 0.0f;
for (i = 0; i < order; i++) {
xPos = points[waypoint - order + i + 1].x;
zPos = points[waypoint - order + i + 1].z;
weightedX += weights[i] * xPos;
weightedZ += weights[i] * zPos;
weightedTotal += weights[i];
}
*x = weightedX / weightedTotal;
*z = weightedZ / weightedTotal;
}
/**
* Updates a time based path that an actor follows by:
* - Computing the X and Z components of the next point to move to
* - Updating the waypoint
* - Updating the time
*
* @param[in] path
* @param[out] progress see SubS_TimePathing_ComputeProgress()
* @param[in,out] elapsedTime how much time has passed
* @param[in] waypointTime how much time per each waypoint
* @param[in] totalTime how much time the path should take to travel
* @param[in,out] waypoint the current waypoint, this and the previous two points will be used to compute the targetPos
* @param[in] knots see SubS_TimePathing_FillKnots()
* @param[out] targetPos the computed position to move to
* @param[in] timeSpeed how fast time moves
*
* @return s32 returns true when the end has been reached.
*
* @note This system/function makes a couple of assumptions about the order used:
* 1. the order is assumed to be 3, see SUBS_TIME_PATHING_ORDER
* 2. even if SUBS_TIME_PATHING_ORDER is updated, the order can only be a max of 10
*/
s32 SubS_TimePathing_Update(Path* path, f32* progress, s32* elapsedTime, s32 waypointTime, s32 totalTime, s32* waypoint,
f32 knots[], Vec3f* targetPos, s32 timeSpeed) {
Vec3s* points = Lib_SegmentedToVirtual(path->points);
s32 state;
f32 endX;
f32 endZ;
s32 reachedEnd = false;
if (*waypoint >= path->count) {
state = SUBS_TIME_PATHING_PROGRESS_STATUS_SHOULD_REACH_END;
} else {
state = SubS_TimePathing_ComputeProgress(progress, *elapsedTime, waypointTime, totalTime, path->count,
SUBS_TIME_PATHING_ORDER, knots);
}
switch (state) {
case SUBS_TIME_PATHING_PROGRESS_STATUS_STILL_ON_PATH:
reachedEnd = false;
SubS_TimePathing_ComputeTargetPosXZ(&targetPos->x, &targetPos->z, *progress, SUBS_TIME_PATHING_ORDER,
*waypoint, points, knots);
break;
case SUBS_TIME_PATHING_PROGRESS_STATUS_SHOULD_REACH_END:
endX = points[path->count - 1].x;
endZ = points[path->count - 1].z;
targetPos->x = endX * 1;
targetPos->z = endZ * 1;
reachedEnd = true;
break;
}
*elapsedTime += timeSpeed;
if (*elapsedTime >= totalTime) {
*elapsedTime = totalTime;
} else if (*elapsedTime < 0) {
*elapsedTime = 0;
}
*waypoint = (*elapsedTime / waypointTime) + (SUBS_TIME_PATHING_ORDER - 1);
return reachedEnd;
}
/**
* Computes the initial Y component of a time based path
*
* @param[in] play
* @param[in] path
* @param[in] waypoint the current waypoint, this and the previous two points will be used to compute the target pos
* @param[out] targetPos the computed position to move to, only the Y component has meaning
*
* @note Same note as SubS_TimePathing_Update()
*/
void SubS_TimePathing_ComputeInitialY(PlayState* play, Path* path, s32 waypoint, Vec3f* targetPos) {
Vec3s* points = Lib_SegmentedToVirtual(path->points);
Vec3f posA;
Vec3f posB;
Vec3f posResult;
s32 i = waypoint - (SUBS_TIME_PATHING_ORDER - 1);
s16 max;
s16 min;
s32 isSetup;
CollisionPoly* outPoly = NULL;
s32 bgId = 0;
max = 0;
min = 0;
isSetup = false;
for (; i <= waypoint; i++) {
if (isSetup) {
if (max < points[i].y) {
max = points[i].y;
}
if (points[i].y < min) {
min = points[i].y;
}
} else {
max = min = points[i].y;
}
isSetup = true;
}
max += 30;
min -= 30;
posA = *targetPos;
posB = *targetPos;
posA.y = max;
posB.y = min;
if (BgCheck_EntityLineTest1(&play->colCtx, &posA, &posB, &posResult, &outPoly, true, true, true, true, &bgId)) {
targetPos->y = posResult.y;
}
}
Path* SubS_GetAdditionalPath(PlayState* play, u8 pathIndex, s32 limit) {
Path* path;
s32 i = 0;
do {
path = &play->setupPathList[pathIndex];
if (i >= limit) {
break;
}
pathIndex = path->unk1;
i++;
} while (pathIndex != 0xFF);
return path;
}
/**
* Finds the nearest actor instance of a specified Id and category to an actor.
*/
Actor* SubS_FindNearestActor(Actor* actor, PlayState* play, u8 actorCategory, s16 actorId) {
Actor* actorIter = NULL;
Actor* actorTmp;
f32 dist;
Actor* closestActor = NULL;
f32 minDist = 99999.0f;
s32 isSetup = false;
do {
actorIter = SubS_FindActor(play, actorIter, actorCategory, actorId);
actorTmp = actorIter;
if (actorTmp == NULL) {
break;
}
actorIter = actorTmp;
if (actorIter != actor) {
dist = Actor_DistanceBetweenActors(actor, actorIter);
if (!isSetup || dist < minDist) {
closestActor = actorIter;
minDist = dist;
isSetup = true;
}
}
actorIter = actorIter->next;
} while (actorIter != NULL);
return closestActor;
}
s32 SubS_ChangeAnimationByInfoS(SkelAnime* skelAnime, AnimationInfoS* animations, s32 index) {
s32 endFrame;
s32 startFrame;
animations += index;
endFrame = animations->frameCount;
if (animations->frameCount < 0) {
endFrame = Animation_GetLastFrame(&animations->animation->common);
}
startFrame = animations->startFrame;
if (startFrame >= endFrame || startFrame < 0) {
return false;
}
if (animations->playSpeed < 0.0f) {
SWAP(s32, endFrame, startFrame);
}
Animation_Change(skelAnime, animations->animation, animations->playSpeed, startFrame, endFrame, animations->mode,
animations->morphFrames);
return true;
}
s32 SubS_HasReachedPoint(Actor* actor, Path* path, s32 pointIndex) {
Vec3s* points = Lib_SegmentedToVirtual(path->points);
s32 count = path->count;
s32 index = pointIndex;
s32 reached = false;
f32 diffX;
f32 diffZ;
f32 px;
f32 pz;
f32 d;
Vec3f point;
Math_Vec3s_ToVec3f(&point, &points[index]);
if (index == 0) {
diffX = points[1].x - points[0].x;
diffZ = points[1].z - points[0].z;
} else if (index == count - 1) {
diffX = points[count - 1].x - points[count - 2].x;
diffZ = points[count - 1].z - points[count - 2].z;
} else {
diffX = points[index + 1].x - points[index - 1].x;
diffZ = points[index + 1].z - points[index - 1].z;
}
func_8017B7F8(&point, RADF_TO_BINANG(func_80086B30(diffX, diffZ)), &px, &pz, &d);
if (((px * actor->world.pos.x) + (pz * actor->world.pos.z) + d) > 0.0f) {
reached = true;
}
return reached;
}
Path* SubS_GetDayDependentPath(PlayState* play, u8 pathIndex, u8 max, s32* startPointIndex) {
Path* path = NULL;
s32 found = false;
s32 time = (((s16)TIME_TO_MINUTES_F(gSaveContext.save.time) % 60) +
((s16)TIME_TO_MINUTES_F(gSaveContext.save.time) / 60) * 60) /
30;
s32 day = CURRENT_DAY;
if (pathIndex == max) {
return NULL;
}
while (pathIndex != 0xFF) {
path = &play->setupPathList[pathIndex];
if (sPathDayFlags[day] & path->unk2) {
found = true;
break;
}
pathIndex = path->unk1;
}
if (found == true) {
*startPointIndex = time;
*startPointIndex = CLAMP(*startPointIndex, 0, path->count - 1);
} else {
*startPointIndex = 0;
}
return path;
}
/**
* Computes the point to move toward using a weight based algorithm that considers 4 points along the path
*
* @param path
* @param waypoint the current waypoint, this and the previous three points will be used to compute the point
* @param point the point computed
* @param progress the main weight value used to compute the weights for the points considered
* @param direction the direciton along the path to move, 1 for forwards, anything else for backwards
*
* @note only computes X and Z components of the point
*/
s32 SubS_WeightPathing_ComputePoint(Path* path, s32 waypoint, Vec3f* point, f32 progress, s32 direction) {
s32 i;
f32 weight0;
f32 weight1;
f32 weight2;
f32 weight3;
s32 lastPoint;
s32 secondLastPoint;
s32 secondPoint;
s32 firstPoint;
f32 xPoints[4];
f32 zPoints[4];
f32 oneMinusProgress;
f32 squared;
f32 cubed;
Vec3s* points;
s32 count = path->count;
s32 pointIndex;
s32 tmp;
if (path == NULL) {
return false;
}
if (direction == 1) {
if (waypoint <= 2) {
pointIndex = 2;
} else {
pointIndex = (waypoint == 3) ? 3 : waypoint;
}
for (i = 0; i < 4; i++, pointIndex--) {
if (pointIndex <= 0) {
pointIndex = 0;
}
points = Lib_SegmentedToVirtual(path->points);
points = &points[pointIndex];
xPoints[i] = points->x;
zPoints[i] = points->z;
}
lastPoint = count - 1;
secondLastPoint = count - 2;
secondPoint = 3;
firstPoint = 2;
} else {
if (waypoint >= count - 3) {
pointIndex = count - 3;
} else {
tmp = waypoint + 4;
pointIndex = (count == tmp) ? count - 4 : waypoint;
}
for (i = 0; i < 4; i++, pointIndex++) {
if (pointIndex >= path->count) {
pointIndex = path->count - 1;
}
points = Lib_SegmentedToVirtual(path->points);
points = &points[pointIndex];
xPoints[i] = points->x;
zPoints[i] = points->z;
}
lastPoint = 0;
secondLastPoint = 1;
secondPoint = count - 4;
firstPoint = count - 3;
}
if (waypoint == lastPoint) {
oneMinusProgress = 1.0f - progress;
squared = progress * progress;
cubed = progress * squared;
weight0 = oneMinusProgress * oneMinusProgress * oneMinusProgress;
weight1 = (1.75f * cubed) - (4.5f * squared) + (3.0f * progress);
weight2 = ((-11.0f / 12.0f) * cubed) + (1.5f * squared);
weight3 = (1.0f / 6.0f) * cubed;
} else if (waypoint == secondLastPoint) {
oneMinusProgress = 1.0f - progress;
squared = progress * progress;
cubed = progress * squared;
weight0 = oneMinusProgress * oneMinusProgress * oneMinusProgress * ((void)0, 0.25f); //! FAKE:
weight1 = ((7.0f / 12.0f) * cubed) - (1.25f * squared) + (0.25f * progress) + (7.0f / 12.0f);
weight2 = (-0.5f * cubed) + (0.5f * squared) + (progress * 0.5f) + (1.0f / 6.0f);
weight3 = cubed * (1.0f / 6.0f);
} else if (waypoint == secondPoint) {
oneMinusProgress = 1.0f - progress;
squared = oneMinusProgress * oneMinusProgress;
cubed = oneMinusProgress * squared;
weight0 = (1.0f / 6.0f) * cubed;
weight1 = (-0.5f * cubed) + (0.5f * squared) + (0.5f * oneMinusProgress) + (1.0f / 6.0f);
weight2 = ((7.0f / 12.0f) * cubed) - (1.25f * squared) + (0.25f * oneMinusProgress) + (7.0f / 12.0f);
weight3 = progress * progress * progress * 0.25f;
} else if (((direction == 1) && (firstPoint >= waypoint)) || ((direction != 1) && (waypoint >= firstPoint))) {
oneMinusProgress = 1.0f - progress;
squared = oneMinusProgress * oneMinusProgress;
cubed = oneMinusProgress * squared;
weight0 = (1.0f / 6.0f) * cubed;
weight1 = ((-11.0f / 12.0f) * cubed) + (1.5f * squared);
weight2 = (1.75f * cubed) - (4.5f * squared) + (3.0f * oneMinusProgress);
weight3 = progress * progress * progress;
} else {
oneMinusProgress = 1.0f - progress;
squared = progress * progress;
cubed = squared * progress;
weight0 = oneMinusProgress * oneMinusProgress;
weight0 = oneMinusProgress * weight0 / 6.0f;
weight1 = (cubed * 0.5f) - squared + (2.0f / 3.0f);
weight2 = (cubed / -2.0f) + (squared * 0.5f) + (progress * 0.5f) + (1.0f / 6.0f);
weight3 = cubed / 6.0f;
}
point->x = (weight0 * xPoints[0]) + (weight1 * xPoints[1]) + (weight2 * xPoints[2]) + (weight3 * xPoints[3]);
point->z = (weight0 * zPoints[0]) + (weight1 * zPoints[1]) + (weight2 * zPoints[2]) + (weight3 * zPoints[3]);
return true;
}
// WeightPathing System is completely unused
/**
* Moves an actor based on a weight based algorithm that takes into account 4 points along the path
*
* @param actor
* @param path
* @param waypoint the current waypoint, this and the previous three points will be used to move forward
* @param progress the progress towards a given waypoint, used to compute the weights
* @param direction the direction along the path to move, 1 for forwards, anything else for backwards
* @param returnStart boolean, true if the actor should wrap back to start when reaching the end
*
* @return s32 true if actor reached the end of the path in this iteration, false otherwise
*/
s32 SubS_WeightPathing_Move(Actor* actor, Path* path, s32* waypoint, f32* progress, s32 direction, s32 returnStart) {
Vec3f worldPos = actor->world.pos;
Vec3f velocity = actor->velocity;
Vec3f point;
f32 dist;
if (((direction != 1) && (*waypoint >= (path->count - 2))) || ((direction == 1) && (*waypoint < 2))) {
return false;
}
while (true) {
if (!SubS_WeightPathing_ComputePoint(path, *waypoint, &point, *progress, direction) ||
((s32)(actor->speedXZ * 10000.0f) == 0)) {
return false;
}
dist = Math_Vec3f_DistXZ(&actor->world.pos, &point);
actor->world.rot.y = Math_Vec3f_Yaw(&actor->world.pos, &point);
Actor_MoveWithGravity(actor);
if (Math_Vec3f_DistXZ(&actor->world.pos, &point) < dist) {
break;
}
*progress += 0.1f;
if (*progress >= 1.1f) {
if (direction != 1) {
(*waypoint)++;
if (*waypoint >= (path->count - 2)) {
if (returnStart) {
*waypoint = 0;
} else {
return true;
}
}
} else {
(*waypoint)--;
if (*waypoint < 2) {
if (returnStart) {
*waypoint = path->count - 2;
} else {
return true;
}
}
}
*progress = 0.0f;
}
actor->world.pos = worldPos;
actor->velocity = velocity;
}
return false;
}
s32 SubS_CopyPointFromPathCheckBounds(Path* path, s32 pointIndex, Vec3f* dst) {
Vec3s* point;
if ((path == NULL) || (pointIndex >= path->count) || (pointIndex < 0)) {
return false;
}
point = Lib_SegmentedToVirtual(path->points);
point = &point[pointIndex];
dst->x = point->x;
dst->y = point->y;
dst->z = point->z;
return true;
}
//! TODO: Needs docs with func_800B8500
s32 func_8013C964(Actor* actor, PlayState* play, f32 xzRange, f32 yRange, s32 itemId, s32 type) {
s32 ret = false;
s16 x;
s16 y;
f32 xzDistToPlayerTemp;
Actor_GetScreenPos(play, actor, &x, &y);
switch (type) {
case 1:
yRange = fabsf(actor->playerHeightRel) + 1.0f;
xzRange = actor->xzDistToPlayer + 1.0f;
ret = Actor_PickUp(actor, play, itemId, xzRange, yRange);
break;
case 2:
if ((fabsf(actor->playerHeightRel) <= yRange) && (actor->xzDistToPlayer <= xzRange)) {
ret = func_800B8500(actor, play, xzRange, yRange, itemId);
}
break;
case 3:
//! @bug: Both x and y conditionals are always true, || should be an &&
if (((x >= 0) || (x < SCREEN_WIDTH)) && ((y >= 0) || (y < SCREEN_HEIGHT))) {
ret = func_800B8500(actor, play, xzRange, yRange, itemId);
}
break;
case 4:
yRange = fabsf(actor->playerHeightRel) + 1.0f;
xzRange = actor->xzDistToPlayer + 1.0f;
xzDistToPlayerTemp = actor->xzDistToPlayer;
actor->xzDistToPlayer = 0.0f;
actor->flags |= 0x10000;
ret = func_800B8500(actor, play, xzRange, yRange, itemId);
actor->xzDistToPlayer = xzDistToPlayerTemp;
break;
case 5:
//! @bug: Both x and y conditionals are always true, || should be an &&
if (((x >= 0) || (x < SCREEN_WIDTH)) && ((y >= 0) || (y < SCREEN_HEIGHT)) &&
(fabsf(actor->playerHeightRel) <= yRange) && (actor->xzDistToPlayer <= xzRange) && actor->isTargeted) {
actor->flags |= 0x10000;
ret = func_800B8500(actor, play, xzRange, yRange, itemId);
}
break;
case 6:
//! @bug: Both x and y conditionals are always true, || should be an &&
if (((x >= 0) || (x < SCREEN_WIDTH)) && ((y >= 0) || (y < SCREEN_HEIGHT)) &&
(fabsf(actor->playerHeightRel) <= yRange) && (actor->xzDistToPlayer <= xzRange)) {
actor->flags |= 0x10000;
ret = func_800B8500(actor, play, xzRange, yRange, itemId);
}
break;
}
return ret;
}
const u8 sShadowMaps[4][12][12] = {
{
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
},
{
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
},
{
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
},
{
{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
{ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
{ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
{ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
{ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 },
{ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
},
};
void SubS_FillShadowTex(s32 startCol, s32 startRow, u8* tex, s32 size) {
s32 i;
s32 j;
s32 start;
for (i = 0; i < 12; i++) {
start = ((startRow + i) * 64) + startCol - 390;
for (j = 0; j < 12; j++) {
if (sShadowMaps[size][i][j] != 0) {
if ((start + j >= 0) && (start + j < SUBS_SHADOW_TEX_SIZE)) {
tex[start + j] = 255;
}
}
}
}
}
void SubS_GenShadowTex(Vec3f bodyPartsPos[], Vec3f* worldPos, u8* tex, f32 tween, u8 bodyPartsNum, u8 sizes[],
s8 parentBodyParts[]) {
Vec3f pos;
Vec3f startVec;
s32 i;
s32 parentBodyPart;
Vec3f* bodyPartPos;
s32 startCol;
s32 startRow;
for (i = 0; i < bodyPartsNum; i++) {
if (parentBodyParts[i] >= 0) {
parentBodyPart = parentBodyParts[i];
bodyPartPos = &bodyPartsPos[i];
pos.x = (bodyPartsPos[parentBodyPart].x - bodyPartPos->x) * tween + (bodyPartPos->x - worldPos->x);
pos.y = (bodyPartsPos[parentBodyPart].y - bodyPartPos->y) * tween + (bodyPartPos->y - worldPos->y);
pos.z = (bodyPartsPos[parentBodyPart].z - bodyPartPos->z) * tween + (bodyPartPos->z - worldPos->z);
} else {
bodyPartPos = &bodyPartsPos[i];
pos.x = bodyPartPos->x - worldPos->x;
pos.y = bodyPartPos->y - worldPos->y;
pos.z = bodyPartPos->z - worldPos->z;
}
Matrix_MultVec3f(&pos, &startVec);
startCol = 64.0f + startVec.x;
startRow = 64.0f - startVec.z;
SubS_FillShadowTex(startCol >> 1, startRow >> 1, tex, sizes[i]);
}
}
void SubS_DrawShadowTex(Actor* actor, GameState* gameState, u8* tex) {
s32 pad;
GraphicsContext* gfxCtx = gameState->gfxCtx;
OPEN_DISPS(gfxCtx);
func_8012C28C(gfxCtx);
gDPSetPrimColor(POLY_OPA_DISP++, 0, 0, 0, 0, 0, 100);
gDPSetEnvColor(POLY_OPA_DISP++, 0, 0, 0, 0);
Matrix_Translate(actor->world.pos.x, 0.0f, actor->world.pos.z, MTXMODE_NEW);
Matrix_Scale(0.6f, 1.0f, 0.6f, MTXMODE_APPLY);
gSPMatrix(POLY_OPA_DISP++, Matrix_NewMtx(gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD | G_MTX_MODELVIEW);
gSPDisplayList(POLY_OPA_DISP++, gShadowMaterialDL);
gDPLoadTextureBlock(POLY_OPA_DISP++, tex, G_IM_FMT_I, G_IM_SIZ_8b, SUBS_SHADOW_TEX_WIDTH, SUBS_SHADOW_TEX_HEIGHT, 0,
G_TX_NOMIRROR | G_TX_CLAMP, G_TX_NOMIRROR | G_TX_CLAMP, 6, 6, G_TX_NOLOD, G_TX_NOLOD);
gSPDisplayList(POLY_OPA_DISP++, gShadowModelDL);
CLOSE_DISPS(gfxCtx);
}
/**
* Computes the rotation based on the options and target rotation value
*
* @param[in,out] rot the computed rotation
* @param[in] rotMax the max rotation in binary angles
* @param[in] target the target rotation value
* @param[in] slowness how slow to rotate, the larger the number the slower the rotation, cannot be 0
* @param[in] stepMin the minimun step in degrees
* @param[in] stepMax the maximum step in degrees
*/
s16 SubS_ComputeTrackPointRot(s16* rot, s16 rotMax, s16 target, f32 slowness, f32 stepMin, f32 stepMax) {
s16 prevRot = *rot;
f32 step;
f32 prevRotStep;
step = (f32)(target - *rot) * (360.0f / (f32)0x10000);
step *= gFramerateDivisorHalf;
prevRotStep = step;
if (step >= 0.0f) {
step /= slowness;
step = CLAMP(step, stepMin, stepMax);
*rot += (s16)((step * (f32)0x10000) / 360.0f);
if (prevRotStep < stepMin) {
*rot = target;
}
if (rotMax != 0) {
*rot = CLAMP(*rot, -rotMax, rotMax);
}
} else {
step = (step / slowness) * -1.0f;
step = CLAMP(step, stepMin, stepMax);
*rot -= (s16)((step * (f32)0x10000) / 360.0f);
if (-stepMin < prevRotStep) {
*rot = target;
}
if (rotMax != 0) {
*rot = CLAMP(*rot, -rotMax, rotMax);
}
}
return prevRot - *rot;
}
/**
* Computes the necessary HeadRot and TorsoRot to smoothly turn an actors's head and torso to a point
*
* @param[in] target the point to turn to
* @param[in] focusPos the actor's focus postion
* @param[in] shapeRot the actor's shape rotation
* @param[in,out] trackTarget the intermediate target step that headRot and torsoRot step towards
* @param[in,out] headRot the computed head rotation
* @param[in,out] torsoRot the computed torso rotation
* @param[in] options various options to adjust how the actor turns, see SubS_ComputeTrackPointRot()
*/
s32 SubS_TrackPoint(Vec3f* target, Vec3f* focusPos, Vec3s* shapeRot, Vec3s* trackTarget, Vec3s* headRot,
Vec3s* torsoRot, TrackOptionsSet* options) {
s16 pitch;
s16 yaw;
s16 pad;
s16 targetY;
f32 diffX = target->x - focusPos->x;
s16 targetX;
f32 diffZ = target->z - focusPos->z;
yaw = Math_FAtan2F(diffZ, diffX);
pitch = Math_FAtan2F(sqrtf(SQ(diffX) + SQ(diffZ)), target->y - focusPos->y);
Math_SmoothStepToS(&trackTarget->x, pitch, 4, 0x2710, 0);
Math_SmoothStepToS(&trackTarget->y, yaw, 4, 0x2710, 0);
targetX =
SubS_ComputeTrackPointRot(&headRot->x, options->headRotX.rotMax, trackTarget->x, options->headRotX.slowness,
options->headRotX.rotStepMin, options->headRotX.rotStepMax);
//! @bug: torsoRotX uses headRotX slowness
SubS_ComputeTrackPointRot(&torsoRot->x, options->torsoRotX.rotMax, targetX, options->headRotX.slowness,
options->torsoRotX.rotStepMin, options->torsoRotX.rotStepMax);
targetY = trackTarget->y - shapeRot->y;
SubS_ComputeTrackPointRot(&headRot->y, options->headRotY.rotMax, targetY - torsoRot->y, options->headRotY.slowness,
options->headRotY.rotStepMin, options->headRotY.rotStepMax);
SubS_ComputeTrackPointRot(&torsoRot->y, options->torsoRotY.rotMax, targetY - headRot->y,
options->torsoRotY.slowness, options->torsoRotY.rotStepMin,
options->torsoRotY.rotStepMax);
return true;
}
s32 SubS_AngleDiffLessEqual(s16 angleA, s16 threshold, s16 angleB) {
return (ABS_ALT(BINANG_SUB(angleB, angleA)) <= threshold) ? true : false;
}
Path* SubS_GetPathByIndex(PlayState* play, s16 pathIndex, s16 max) {
return (pathIndex != max) ? &play->setupPathList[pathIndex] : NULL;
}
s32 SubS_CopyPointFromPath(Path* path, s32 pointIndex, Vec3f* dst) {
Vec3s* point;
if (path == NULL) {
return false;
}
point = Lib_SegmentedToVirtual(path->points);
point = &point[pointIndex];
dst->x = point->x;
dst->y = point->y;
dst->z = point->z;
return true;
}
s16 SubS_GetDistSqAndOrientPoints(Vec3f* vecA, Vec3f* vecB, f32* distSq) {
f32 diffX = vecA->x - vecB->x;
f32 diffZ = vecA->z - vecB->z;
*distSq = SQ(diffX) + SQ(diffZ);
return Math_Atan2S(diffX, diffZ);
}
/**
* Returns true when the actor has reached the inputed point
*/
s32 SubS_MoveActorToPoint(Actor* actor, Vec3f* point, s16 rotStep) {
Vec3f offsetBefore;
Vec3f offsetAfter;
f32 distSqBefore;
f32 distSqAfter;
Actor_OffsetOfPointInActorCoords(actor, &offsetBefore, point);
Math_SmoothStepToS(&actor->world.rot.y, SubS_GetDistSqAndOrientPoints(point, &actor->world.pos, &distSqBefore), 4,
rotStep, 1);
actor->shape.rot.y = actor->world.rot.y;
Actor_MoveWithGravity(actor);
Actor_OffsetOfPointInActorCoords(actor, &offsetAfter, point);
SubS_GetDistSqAndOrientPoints(point, &actor->world.pos, &distSqAfter);
return ((offsetBefore.z > 0.0f) && (offsetAfter.z <= 0.0f)) ? true : false;
}
s16 SubS_GetDistSqAndOrientPath(Path* path, s32 pointIndex, Vec3f* pos, f32* distSq) {
Vec3s* point;
f32 diffX = 0.0f;
f32 diffZ = 0.0f;
if (path != NULL) {
point = Lib_SegmentedToVirtual(path->points);
point = &point[pointIndex];
diffX = point->x - pos->x;
diffZ = point->z - pos->z;
}
*distSq = SQ(diffX) + SQ(diffZ);
return Math_Atan2S(diffX, diffZ);
}
s8 SubS_IsObjectLoaded(s8 index, PlayState* play) {
return !Object_IsLoaded(&play->objectCtx, index) ? false : true;
}
s8 SubS_GetObjectIndex(s16 id, PlayState* play) {
return Object_GetIndex(&play->objectCtx, id);
}
/**
* Finds the first actor instance of a specified Id and category.
*/
Actor* SubS_FindActor(PlayState* play, Actor* actorListStart, u8 actorCategory, s16 actorId) {
Actor* actor = actorListStart;
if (actor == NULL) {
actor = play->actorCtx.actorLists[actorCategory].first;
}
while (actor != NULL && actorId != actor->id) {
actor = actor->next;
}
return actor;
}
s32 SubS_FillLimbRotTables(PlayState* play, s16* limbRotTableY, s16* limbRotTableZ, s32 numLimbs) {
s32 i;
u32 frames = play->gameplayFrames;
for (i = 0; i < numLimbs; i++) {
limbRotTableY[i] = (i * 50 + 0x814) * frames;
limbRotTableZ[i] = (i * 50 + 0x940) * frames;
}
return true;
}
s32 SubS_IsFloorAbove(PlayState* play, Vec3f* pos, f32 distAbove) {
CollisionPoly* outPoly;
Vec3f posA;
Vec3f posB;
Vec3f posResult;
s32 bgId;
posA = posB = *pos;
posB.y += distAbove;
return BgCheck_EntityLineTest1(&play->colCtx, &posA, &posB, &posResult, &outPoly, false, true, false, true, &bgId);
}
s32 SubS_CopyPointFromPathList(Path* paths, s32 pathIndex, s32 pointIndex, Vec3f* dst) {
Path* path = &paths[pathIndex];
Vec3s* point = &((Vec3s*)Lib_SegmentedToVirtual(path->points))[pointIndex];
dst->x = point->x;
dst->y = point->y;
dst->z = point->z;
return false;
}
u8 SubS_GetPathCountFromPathList(Path* paths, s32 pathIndex) {
Path* path = &paths[pathIndex];
return path->count;
}
void SubS_ActorPathing_Init(PlayState* play, Vec3f* worldPos, Actor* actor, ActorPathing* actorPath, Path* paths,
s32 pathIndex, s32 begPointIndex, s32 endPointIndex, s32 curPointIndex, u8 flags) {
Path* path;
actorPath->setupPathList = play->setupPathList;
actorPath->pathIndex = pathIndex;
path = &paths[pathIndex];
actorPath->points = Lib_SegmentedToVirtual(path->points);
actorPath->count = path->count;
actorPath->begPointIndex = begPointIndex;
if (endPointIndex == 0) {
actorPath->endPointIndex = actorPath->count - 1;
} else if (endPointIndex > 0) {
actorPath->endPointIndex = endPointIndex;
} else {
//! @bug: endPointIndex is negative, subtraction causes result to be past the end
actorPath->endPointIndex = (actorPath->count - endPointIndex) - 1;
}
actorPath->curPointIndex = curPointIndex;
actorPath->curPoint.x = actorPath->points[0].x;
actorPath->curPoint.y = actorPath->points[0].y;
actorPath->curPoint.z = actorPath->points[0].z;
Math_Vec3f_Copy(&actorPath->prevPoint, &actorPath->curPoint);
actorPath->worldPos = worldPos;
actorPath->actor = actor;
actorPath->flags = flags;
actorPath->prevFlags = flags;
}
s32 SubS_ActorPathing_Update(PlayState* play, ActorPathing* actorPath, ActorPathingComputeFunc computePointInfoFunc,
ActorPathingUpdateFunc updateActorInfoFunc, ActorPathingUpdateFunc moveFunc,
ActorPathingUpdateFunc setNextPointFunc) {
s32 shouldSetNextPoint;
s32 reupdate;
actorPath->computePointInfoFunc = computePointInfoFunc;
actorPath->updateActorInfoFunc = updateActorInfoFunc;
actorPath->moveFunc = moveFunc;
actorPath->setNextPointFunc = setNextPointFunc;
actorPath->flags &= ~ACTOR_PATHING_REACHED_TEMPORARY;
reupdate = false;
if (actorPath->flags & ACTOR_PATHING_MOVE_BACKWARDS) {
if (!(actorPath->prevFlags & ACTOR_PATHING_MOVE_BACKWARDS)) {
actorPath->curPointIndex--;
}
} else if (actorPath->prevFlags & ACTOR_PATHING_MOVE_BACKWARDS) {
actorPath->curPointIndex++;
}
do {
shouldSetNextPoint = false;
if (actorPath->computePointInfoFunc != NULL) {
actorPath->computePointInfoFunc(play, actorPath);
}
if (actorPath->updateActorInfoFunc != NULL) {
shouldSetNextPoint = actorPath->updateActorInfoFunc(play, actorPath);
}
if (shouldSetNextPoint) {
if (actorPath->setNextPointFunc != NULL) {
reupdate = actorPath->setNextPointFunc(play, actorPath);
}
} else if (actorPath->moveFunc != NULL) {
reupdate = actorPath->moveFunc(play, actorPath);
}
} while (reupdate);
actorPath->prevFlags = actorPath->flags;
return false;
}
void SubS_ActorPathing_ComputePointInfo(PlayState* play, ActorPathing* actorPath) {
Vec3f diff;
actorPath->curPoint.x = actorPath->points[actorPath->curPointIndex].x + actorPath->pointOffset.x;
actorPath->curPoint.y = actorPath->points[actorPath->curPointIndex].y + actorPath->pointOffset.y;
actorPath->curPoint.z = actorPath->points[actorPath->curPointIndex].z + actorPath->pointOffset.z;
diff.x = actorPath->curPoint.x - actorPath->worldPos->x;
diff.y = actorPath->curPoint.y - actorPath->worldPos->y;
diff.z = actorPath->curPoint.z - actorPath->worldPos->z;
actorPath->distSqToCurPointXZ = Math3D_XZLengthSquared(diff.x, diff.z);
actorPath->distSqToCurPoint = Math3D_LengthSquared(&diff);
actorPath->rotToCurPoint.y = Math_FAtan2F(diff.z, diff.x);
actorPath->rotToCurPoint.x = Math_FAtan2F(sqrtf(actorPath->distSqToCurPointXZ), -diff.y);
actorPath->rotToCurPoint.z = 0;
}
s32 SubS_ActorPathing_MoveWithGravity(PlayState* play, ActorPathing* actorPath) {
Actor_MoveWithGravity(actorPath->actor);
return false;
}
s32 SubS_ActorPathing_MoveWithoutGravityReverse(PlayState* play, ActorPathing* actorPath) {
Actor_MoveWithoutGravityReverse(actorPath->actor);
return false;
}
s32 SubS_ActorPathing_SetNextPoint(PlayState* play, ActorPathing* actorPath) {
s32 reupdate = true;
Math_Vec3f_Copy(&actorPath->prevPoint, &actorPath->curPoint);
if (!(actorPath->flags & ACTOR_PATHING_MOVE_BACKWARDS)) {
if (actorPath->curPointIndex >= actorPath->endPointIndex) {
if (actorPath->flags & ACTOR_PATHING_RETURN_TO_START) {
actorPath->curPointIndex = actorPath->begPointIndex;
} else if (actorPath->flags & ACTOR_PATHING_SWITCH_DIRECTION) {
actorPath->flags |= ACTOR_PATHING_MOVE_BACKWARDS;
} else {
reupdate = false;
}
actorPath->flags |= ACTOR_PATHING_REACHED_END;
} else {
actorPath->curPointIndex++;
}
actorPath->flags |= ACTOR_PATHING_REACHED_POINT;
} else {
if (actorPath->begPointIndex >= actorPath->curPointIndex) {
if (actorPath->flags & ACTOR_PATHING_RETURN_TO_START) {
actorPath->curPointIndex = actorPath->endPointIndex;
} else if (actorPath->flags & ACTOR_PATHING_SWITCH_DIRECTION) {
actorPath->flags &= ~ACTOR_PATHING_MOVE_BACKWARDS;
} else {
reupdate = false;
}
actorPath->flags |= ACTOR_PATHING_REACHED_END;
} else {
actorPath->curPointIndex--;
}
}
actorPath->flags |= ACTOR_PATHING_REACHED_POINT;
return reupdate;
}
void SubS_ChangeAnimationBySpeedInfo(SkelAnime* skelAnime, AnimationSpeedInfo* animations, s32 nextIndex,
s32* curIndex) {
AnimationSpeedInfo* animation = &animations[nextIndex];
f32 startFrame = skelAnime->curFrame;
f32 endFrame;
f32 morphFrames;
if ((*curIndex < 0) || (nextIndex == *curIndex)) {
morphFrames = 0.0f;
if (*curIndex < 0) {
startFrame = 0.0f;
}
} else {
morphFrames = animation->morphFrames;
if (nextIndex != *curIndex) {
startFrame = 0.0f;
}
}
if (animation->playSpeed >= 0.0f) {
endFrame = Animation_GetLastFrame(&animation->animation->common);
} else {
startFrame = Animation_GetLastFrame(&animation->animation->common);
endFrame = 0.0f;
}
Animation_Change(skelAnime, animation->animation, animation->playSpeed, startFrame, endFrame, animation->mode,
morphFrames);
*curIndex = nextIndex;
}
s32 SubS_StartActorCutscene(Actor* actor, s16 nextCutscene, s16 curCutscene, s32 type) {
s32 isStarted = false;
if ((curCutscene != -1) && (ActorCutscene_GetCurrentIndex() == curCutscene)) {
ActorCutscene_Stop(curCutscene);
ActorCutscene_SetIntentToPlay(nextCutscene);
} else if (ActorCutscene_GetCanPlayNext(nextCutscene)) {
switch (type) {
case SUBS_CUTSCENE_SET_UNK_LINK_FIELDS:
ActorCutscene_StartAndSetUnkLinkFields(nextCutscene, actor);
break;
case SUBS_CUTSCENE_NORMAL:
ActorCutscene_Start(nextCutscene, actor);
break;
case SUBS_CUTSCENE_SET_FLAG:
ActorCutscene_StartAndSetFlag(nextCutscene, actor);
break;
}
isStarted = true;
} else {
ActorCutscene_SetIntentToPlay(nextCutscene);
}
return isStarted;
}
s32 SubS_FillCutscenesList(Actor* actor, s16 cutscenes[], s16 numCutscenes) {
s16 cs;
s32 i;
for (i = 0; i < numCutscenes; i++) {
cutscenes[i] = -1;
}
cs = actor->cutscene;
i = 0;
while (cs != -1) {
// Note: Infinite loop if numCutscenes is less than possible additional cutscenes
if (i < numCutscenes) {
cutscenes[i] = cs;
cs = ActorCutscene_GetAdditionalCutscene(cs);
i++;
}
}
return i;
}
/**
* Computes a plane based on a point on the plane, a unit vector and two angles
*
* @param[in] point a point on the plane
* @param[in] unitVec the unit vector rotated that becomes the plane's normal
* @param[in] rot the angles to rotate with, uses just the x and y components
* @param[out] plane the computed plane
*
* @note the unit input vector is expected to already be normalized (only uses are with the z unit vector)
*/
void SubS_ConstructPlane(Vec3f* point, Vec3f* unitVec, Vec3s* rot, Plane* plane) {
f32 sin;
f32 cos;
f32 temp;
f32 unitVecZ;
f32 normY;
f32 unitVecYX;
sin = Math_SinS(-rot->x);
cos = Math_CosS(-rot->x);
unitVecZ = unitVec->z;
unitVecYX = unitVec->y;
// Apply a rotation by -x about the X axis
temp = (unitVecZ * cos) - (unitVecYX * sin);
normY = (unitVecZ * sin) + (unitVecYX * cos);
sin = Math_SinS(rot->y);
cos = Math_CosS(rot->y);
unitVecYX = unitVec->x;
plane->normal.y = normY;
// Apply a rotation by y about the Y axis
plane->normal.z = (temp * cos) - (unitVecYX * sin);
plane->normal.x = (temp * sin) + (unitVecYX * cos);
plane->originDist = -((point->x * plane->normal.x) + (plane->normal.y * point->y) + (plane->normal.z * point->z));
}
s32 SubS_LineSegVsPlane(Vec3f* point, Vec3s* rot, Vec3f* unitVec, Vec3f* linePointA, Vec3f* linePointB,
Vec3f* intersect) {
s32 lineSegVsPlane;
Plane plane;
SubS_ConstructPlane(point, unitVec, rot, &plane);
lineSegVsPlane = Math3D_LineSegVsPlane(plane.normal.x, plane.normal.y, plane.normal.z, plane.originDist, linePointA,
linePointB, intersect, false);
return lineSegVsPlane ? true : false;
}
/**
* Finds the first actor instance of a specified Id and category verified with a custom callback.
* The callback should return `true` when the actor is succesfully verified.
*/
Actor* SubS_FindActorCustom(PlayState* play, Actor* actor, Actor* actorListStart, u8 actorCategory, s16 actorId,
void* verifyData, VerifyActor verifyActor) {
Actor* actorIter = actorListStart;
if (actorListStart == NULL) {
actorIter = play->actorCtx.actorLists[actorCategory].first;
}
while (actorIter != NULL &&
(actorId != actorIter->id ||
(actorId == actorIter->id &&
(verifyActor == NULL || (verifyActor != NULL && !verifyActor(play, actor, actorIter, verifyData)))))) {
actorIter = actorIter->next;
}
return actorIter;
}
//! TODO: Needs docs with func_800B8500
s32 func_8013E748(Actor* actor, PlayState* play, f32 xzRange, f32 yRange, s32 exchangeItemId, void* data,
func_8013E748_VerifyFunc verifyFunc) {
s32 ret = false;
if ((verifyFunc == NULL) || ((verifyFunc != NULL) && verifyFunc(play, actor, data))) {
ret = func_800B8500(actor, play, xzRange, yRange, exchangeItemId);
}
return ret;
}
s32 SubS_ActorAndPlayerFaceEachOther(PlayState* play, Actor* actor, void* data) {
Player* player = GET_PLAYER(play);
Vec3s* yawTols = (Vec3s*)data;
s16 playerYaw = ABS(BINANG_SUB(Actor_YawBetweenActors(&player->actor, actor), player->actor.shape.rot.y));
s16 actorYaw = ABS(BINANG_SUB(actor->yawTowardsPlayer, actor->shape.rot.y));
s32 areFacing = false;
s32 actorYawTol = ABS(yawTols->y);
s32 playerYawTol;
if (actorYaw < (s16)actorYawTol) {
playerYawTol = ABS(yawTols->x);
if (playerYaw < (s16)playerYawTol) {
areFacing = true;
}
}
return areFacing;
}
//! TODO: Needs docs with func_800B8500
s32 func_8013E8F8(Actor* actor, PlayState* play, f32 xzRange, f32 yRange, s32 exhangeItemId, s16 playerYawTol,
s16 actorYawTol) {
Vec3s yawTols;
yawTols.x = playerYawTol;
yawTols.y = actorYawTol;
return func_8013E748(actor, play, xzRange, yRange, exhangeItemId, &yawTols, SubS_ActorAndPlayerFaceEachOther);
}
/**
* Computes the necessary HeadRot and TorsoRot steps to be added to the normal rotation to smoothly turn an actors's
* head and torso to a point
*
* @param[in] worldPos the actor's world position
* @param[in] focusPos the actor's focus position
* @param[in] shapeYRot the actor's shape's Y rotation
* @param[in] yawTarget the target point to determine desired yaw
* @param[in] pitchTarget the target point to determine desired pitch
* @param[in,out] headZRotStep the computed actors' head's Z rotation step
* @param[in,out] headXRotStep the computed actors' head's X rotation step
* @param[in,out] torsoZRotStep the computed actors' torso's Z rotation step
* @param[in,out] torsoXRotStep the computed actors' torso's X rotation step
* @param[in] headZRotStepMax the max head's Z rotation step
* @param[in] headXRotStepMax the max head's X rotation step
* @param[in] torsoZRotStepMax the max torso's Z rotation step
* @param[in] torsoXRotStepMax the max torso's X rotation step
*/
s32 SubS_TrackPointStep(Vec3f* worldPos, Vec3f* focusPos, s16 shapeYRot, Vec3f* yawTarget, Vec3f* pitchTarget,
s16* headZRotStep, s16* headXRotStep, s16* torsoZRotStep, s16* torsoXRotStep,
u16 headZRotStepMax, u16 headXRotStepMax, u16 torsoZRotStepMax, u16 torsoXRotStepMax) {
s16 yaw = Math_Vec3f_Yaw(worldPos, yawTarget) - shapeYRot;
s16 pad;
s16 pad2;
s16 pitch = Math_Vec3f_Pitch(focusPos, pitchTarget);
if (BINANG_ADD(headXRotStepMax, torsoXRotStepMax) >= (s16)ABS(yaw)) {
Math_ApproachS(headXRotStep, yaw - *torsoXRotStep, 4, 0x2AA8);
*headXRotStep = CLAMP(*headXRotStep, -headXRotStepMax, headXRotStepMax);
Math_ApproachS(torsoXRotStep, yaw - *headXRotStep, 4, 0x2AA8);
*torsoXRotStep = CLAMP(*torsoXRotStep, -torsoXRotStepMax, torsoXRotStepMax);
} else {
Math_ApproachS(headXRotStep, 0, 4, 0x2AA8);
Math_ApproachS(torsoXRotStep, 0, 4, 0x2AA8);
}
if (BINANG_ADD(headZRotStepMax, torsoZRotStepMax) >= (s16)ABS(pitch)) {
Math_ApproachS(headZRotStep, pitch - *torsoZRotStep, 4, 0x2AA8);
*headZRotStep = CLAMP(*headZRotStep, -headZRotStepMax, headZRotStepMax);
Math_ApproachS(torsoZRotStep, pitch - *headZRotStep, 4, 0x2AA8);
*torsoZRotStep = CLAMP(*torsoZRotStep, -torsoZRotStepMax, torsoZRotStepMax);
} else {
Math_ApproachS(headZRotStep, 0, 4, 0x2AA8);
Math_ApproachS(torsoZRotStep, 0, 4, 0x2AA8);
}
return true;
}
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