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mm/src/code/cutscene_camera.c
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engineer124 180227e7bb Quake & Distortion Docs (Again) + Math Cleanup (Camera Prep) (#1129) 
* more quake docs

* more docs

* more distortion docs

* math cleanup

* fix header

* cleanup

* only partial PR review

* PR Suggestions

* fix master merge

* reverb angle change macros

* more revert

* fix enum
2023-05-18 10:29:50 -04:00

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#include "global.h"
extern CutsceneCamera* sCurCsCamera;
typedef s16 (*CsCamInterpolateCallback)(Vec3f*, f32*, s16*, CsCmdCamPoint*, CsCmdCamMisc*, CutsceneCameraInterp*);
// function declarations
s16 func_80161180(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
s16 func_8016237C(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
s16 func_8016253C(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
s16 func_80162A50(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
s16 func_801623E4(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
s16 func_80161C20(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
s16 func_80161E4C(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
s16 func_801620CC(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
s16 func_80163334(Vec3f* pos, f32* fov, s16* roll, CsCmdCamPoint* point, CsCmdCamMisc* misc,
CutsceneCameraInterp* interp);
f32 func_80163660(Actor* actor);
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_80161180.s")
/**
* Initializes Cutscene Camera Info
*/
s32 CutsceneCamera_Init(Camera* camera, CutsceneCamera* csCamera) {
csCamera->camera = camera;
csCamera->nextSplineTimer = csCamera->updateSplineTimer = 0;
csCamera->cmdIndex = 0;
csCamera->splineIndex = 0xFFFF;
csCamera->splineNeedsInit = true;
csCamera->state = CS_CAM_STATE_UPDATE_ALL;
sCurCsCamera = csCamera;
__osMemset(&csCamera->eyeInterp, 0, sizeof(CutsceneCameraInterp));
__osMemset(&csCamera->atInterp, 0, sizeof(CutsceneCameraInterp));
csCamera->eyeInterp.unk_2D = csCamera->atInterp.unk_2D = 7;
return 1;
}
CsCamInterpolateCallback CutsceneCamera_Interpolate(u8 interpType) {
switch (interpType) {
case CS_CAM_INTERP_7:
default:
return func_80161180;
case CS_CAM_INTERP_0:
return func_8016237C;
case CS_CAM_INTERP_5:
return func_8016253C;
case CS_CAM_INTERP_4:
return func_80162A50;
case CS_CAM_INTERP_1:
return func_801623E4;
case CS_CAM_INTERP_2:
return func_80161C20;
case CS_CAM_INTERP_3:
return func_80161E4C;
case CS_CAM_INTERP_6:
return func_801620CC;
}
}
u8 CutsceneCamera_ProcessSpline(CutsceneCamera* csCamera) {
s32 sp5C;
f32* fov;
s16* roll;
CsCamInterpolateCallback interpHandler;
Player* player;
Actor* target;
s16 numPoints;
sp5C = true;
if (csCamera->state == CS_CAM_STATE_DONE_SPLINE) {
return false;
}
player = GET_PLAYER(csCamera->camera->play);
target = csCamera->camera->target;
if (csCamera->eyeCmd[csCamera->atInterp.curPoint].interpType <
csCamera->atCmd[csCamera->eyeInterp.curPoint].interpType) {
sp5C = false;
}
csCamera->eyeInterp.unk_00 = csCamera->camera->eye;
csCamera->atInterp.unk_00 = csCamera->camera->at;
if (sp5C) {
fov = NULL;
} else {
fov = &csCamera->camera->fov;
}
if (sp5C) {
roll = NULL;
} else {
roll = &csCamera->camera->roll;
}
interpHandler = CutsceneCamera_Interpolate(csCamera->atCmd[csCamera->eyeInterp.curPoint].interpType);
switch (csCamera->atCmd[csCamera->eyeInterp.curPoint].relativeTo) {
case CS_CAM_REL_2:
OLib_Vec3fDiff(&player->actor.world, &csCamera->camera->at, &csCamera->camera->at, OLIB_DIFF);
break;
case CS_CAM_REL_3:
OLib_Vec3fDiff(&player->actor.world, &csCamera->camera->at, &csCamera->camera->at, OLIB_DIFF_OFFSET);
break;
case CS_CAM_REL_1:
OLib_Vec3fDiff(&player->actor.world, &csCamera->camera->at, &csCamera->camera->at, OLIB_DIFF_OFFSET);
break;
case CS_CAM_REL_4:
OLib_Vec3fDiff(&target->world, &csCamera->camera->at, &csCamera->camera->at, OLIB_DIFF_OFFSET);
break;
case CS_CAM_REL_5:
OLib_Vec3fDiff(&target->world, &csCamera->camera->at, &csCamera->camera->at, OLIB_DIFF);
break;
default: // CS_CAM_REL_0
break;
}
numPoints = interpHandler(&csCamera->camera->at, fov, roll, &csCamera->atCmd[csCamera->eyeInterp.curPoint],
&csCamera->miscCmd[csCamera->eyeInterp.curPoint], &csCamera->eyeInterp);
switch (csCamera->atCmd[csCamera->eyeInterp.curPoint].relativeTo) {
case CS_CAM_REL_2:
OLib_Vec3fAdd(&player->actor.world, &csCamera->camera->at, &csCamera->camera->at, OLIB_ADD);
break;
case CS_CAM_REL_3:
OLib_Vec3fAdd(&player->actor.world, &csCamera->camera->at, &csCamera->camera->at, OLIB_ADD_OFFSET);
csCamera->camera->at.y += func_80163660(&player->actor);
break;
case CS_CAM_REL_1:
OLib_Vec3fAdd(&player->actor.world, &csCamera->camera->at, &csCamera->camera->at, OLIB_ADD_OFFSET);
break;
case CS_CAM_REL_4:
OLib_Vec3fAdd(&target->world, &csCamera->camera->at, &csCamera->camera->at, OLIB_ADD_OFFSET);
break;
case CS_CAM_REL_5:
OLib_Vec3fAdd(&target->world, &csCamera->camera->at, &csCamera->camera->at, OLIB_ADD);
break;
default: // CS_CAM_REL_0
break;
}
csCamera->eyeInterp.curPoint += numPoints;
if (sp5C) {
fov = &csCamera->camera->fov;
} else {
fov = NULL;
}
if (sp5C) {
roll = &csCamera->camera->roll;
} else {
roll = NULL;
}
interpHandler = CutsceneCamera_Interpolate(csCamera->eyeCmd[csCamera->atInterp.curPoint].interpType);
switch (csCamera->eyeCmd[csCamera->atInterp.curPoint].relativeTo) {
case CS_CAM_REL_2:
OLib_Vec3fDiff(&player->actor.world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_DIFF);
break;
case CS_CAM_REL_3:
OLib_Vec3fDiff(&player->actor.world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_DIFF_OFFSET);
break;
case CS_CAM_REL_1:
OLib_Vec3fDiff(&player->actor.world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_DIFF_OFFSET);
break;
case CS_CAM_REL_4:
OLib_Vec3fDiff(&target->world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_DIFF_OFFSET);
break;
case CS_CAM_REL_5:
OLib_Vec3fDiff(&target->world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_DIFF);
break;
default: // CS_CAM_REL_0
break;
}
numPoints = interpHandler(&csCamera->camera->eye, fov, roll, &csCamera->eyeCmd[csCamera->atInterp.curPoint],
&csCamera->miscCmd[csCamera->atInterp.curPoint], &csCamera->atInterp);
switch (csCamera->eyeCmd[csCamera->atInterp.curPoint].relativeTo) {
case CS_CAM_REL_2:
OLib_Vec3fAdd(&player->actor.world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_ADD);
break;
case CS_CAM_REL_3:
OLib_Vec3fAdd(&player->actor.world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_ADD_OFFSET);
csCamera->camera->eye.y += func_80163660(&player->actor);
break;
case CS_CAM_REL_1:
OLib_Vec3fAdd(&player->actor.world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_ADD_OFFSET);
break;
case CS_CAM_REL_4:
OLib_Vec3fAdd(&target->world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_ADD_OFFSET);
break;
case CS_CAM_REL_5:
OLib_Vec3fAdd(&target->world, &csCamera->camera->eye, &csCamera->camera->eye, OLIB_ADD);
break;
default: // CS_CAM_REL_0
break;
}
csCamera->atInterp.curPoint += numPoints;
if ((csCamera->eyeInterp.curPoint >= csCamera->eyeInterp.numEntries) ||
(csCamera->atInterp.curPoint >= csCamera->atInterp.numEntries)) {
return false;
}
return true;
}
/**
* Processes camera cutscene commands
*/
s32 CutsceneCamera_UpdateSplines(u8* script, CutsceneCamera* csCamera) {
CsCmdCamSpline* spline;
switch (csCamera->state) {
case CS_CAM_STATE_DONE:
return 0;
case CS_CAM_STATE_PAUSE:
return csCamera->nextSplineTimer;
case CS_CAM_STATE_UPDATE_SPLINE:
if (csCamera->updateSplineTimer <= csCamera->duration) {
csCamera->updateSplineTimer++;
if (csCamera->updateSplineTimer <= csCamera->duration) {
// Process Spline
if (!CutsceneCamera_ProcessSpline(csCamera)) {
csCamera->state = CS_CAM_STATE_DONE_SPLINE;
}
}
}
break;
case CS_CAM_STATE_DONE_SPLINE:
break;
default: // CS_CAM_STATE_UPDATE_ALL
if (csCamera->splineNeedsInit == true) {
// Spline Header
spline = (CsCmdCamSpline*)&script[csCamera->cmdIndex];
csCamera->atInterp.numEntries = csCamera->eyeInterp.numEntries = spline->numEntries;
csCamera->duration = spline->duration;
csCamera->cmdIndex += sizeof(CsCmdCamSpline);
// At Point
csCamera->atCmd = (CsCmdCamPoint*)&script[csCamera->cmdIndex];
csCamera->cmdIndex += (s16)(csCamera->eyeInterp.numEntries * sizeof(CsCmdCamPoint));
// Misc Point
csCamera->eyeCmd = (CsCmdCamPoint*)&script[csCamera->cmdIndex];
csCamera->cmdIndex += (s16)(csCamera->eyeInterp.numEntries * sizeof(CsCmdCamPoint));
// Misc
csCamera->miscCmd = (CsCmdCamMisc*)&script[csCamera->cmdIndex];
csCamera->cmdIndex += (s16)(csCamera->eyeInterp.numEntries * sizeof(CsCmdCamMisc));
// Other Params
csCamera->eyeInterp.curPoint = 0;
csCamera->atInterp.curPoint = 0;
csCamera->splineNeedsInit = false;
//! FAKE: csCamera->splineIndex++;
csCamera->splineIndex = (csCamera->splineIndex & 0xFFFF) + 1;
csCamera->state = CS_CAM_STATE_UPDATE_ALL;
csCamera->nextSplineTimer = csCamera->updateSplineTimer = 0;
csCamera->eyeInterp.unk_2D = csCamera->atInterp.unk_2D = 7;
}
csCamera->nextSplineTimer++;
if (csCamera->updateSplineTimer <= csCamera->duration) {
csCamera->updateSplineTimer++;
if (csCamera->updateSplineTimer <= csCamera->duration) {
// Process SubCommands
if (!CutsceneCamera_ProcessSpline(csCamera)) {
csCamera->state = CS_CAM_STATE_DONE_SPLINE;
}
}
}
break;
}
if (csCamera->nextSplineTimer > csCamera->duration) {
// Next Spline
csCamera->splineNeedsInit = true;
spline = (CsCmdCamSpline*)&script[csCamera->cmdIndex];
if (spline->numEntries == -1) {
csCamera->state = CS_CAM_STATE_DONE;
return 0;
}
}
return csCamera->nextSplineTimer;
}
// Unused
s16 func_80161BAC(void) {
return (sCurCsCamera->state == CS_CAM_STATE_PAUSE) || (sCurCsCamera->state == CS_CAM_STATE_UPDATE_SPLINE);
}
void CutsceneCamera_SetState(s16 state) {
if (sCurCsCamera->state == CS_CAM_STATE_UPDATE_ALL) {
sCurCsCamera->state = state;
}
}
void CutsceneCamera_Reset(void) {
sCurCsCamera->state = CS_CAM_STATE_UPDATE_ALL;
}
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_80161C20.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_80161E4C.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_801620CC.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_8016237C.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_801623E4.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_801624EC.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_8016253C.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_801629BC.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_80162A50.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_80162FF8.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_801631DC.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_80163334.s")
#pragma GLOBAL_ASM("asm/non_matchings/code/cutscene_camera/func_80163660.s")
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