#ifndef CAMERA_H
#define CAMERA_H

#include "common_structs.h"

// todo put this define in types.h or similar.
// Certain functions are marked as having return values, but do not
// actually return a value. This causes undefined behavior, which we'd rather
// avoid on modern GCC. This only impacts -O2 and can matter for both the function
// itself and functions that call it.
#ifdef AVOID_UB
    #define BAD_RETURN(cmd) void
#else
    #define BAD_RETURN(cmd) cmd
#endif

typedef struct {
    /* 0x00 */ Vec3f pos;
    /* 0x0C */ Vec3f lookAt;
    // This is expected to be a normalized vector, indicates what direction is "up" for the camera
    /* 0x18 */ Vec3f up;
    // I think these are the "nautical angles" between pos and lookAt
    // rot[0] = pitch, rot[1] = yaw, rot[2] = roll?
    /* 0x24 */ Vec3s rot;
    /* 0x2A */ u16 someBitFlags;
    /* 0x2C */ s16 unk_2C;
    /* 0x2E */ s16 unk_2E;
    /* 0x30 */ Vec3f unk_30;
    /* 0x3C */ Vec3f unk_3C;
    /* 0x48 */ s32 unk_48;
    /* 0x4C */ s32 unk_4C;
    /* 0x50 */ s32 unk_50;
    /* 0x54 */ UnkActorInner unk_54;
    // When you hit a wall (or another driver) the camera's pos and lookAt bounce up and down. This is the velocity(?) of that bouncing
    /* 0x94 */ f32 unk_94;
    /* 0x98 */ s16 unk_98;
    /* 0x9A */ s16 unk_9A;
    // Timer for wall-hit bounce. Counts up instead of down
    /* 0x9C */ s16 unk_9C;
    /* 0x9E */ s16 pad_9E;
    /* 0xA0 */ f32 unk_A0;
    /* 0xA4 */ s32 unk_A4;
    /* 0xA8 */ s32 unk_A8;
    /* 0xAC */ s16 unk_AC;
    // Id of the player the camera is following.
    /* 0xAE */ s16 playerId;
    // Seems related to camera movement during drifting
    /* 0xB0 */ s16 unk_B0;
    /* 0xB2 */ s16 unk_B2;
    /* 0xB4 */ f32 unk_B4;
} Camera; /* size = 0xB8 */

typedef BAD_RETURN(s32) (*CameraEvent)(struct Camera *c);
typedef CameraEvent CutsceneShot;

// The camera used for cutscenes appears to
// use a slightly different struct.
// Or even no struct at all.
typedef struct {
    /* 0x00 */ Vec3f pos;
    /* 0x0C */ Vec3f lookAt;
    // This is expected to be a normalized vector, indicates what direction is "up" for the camera
    /* 0x18 */ f32 unk18;
    /* 0x1C */ u8 cutscene; // ?
    /* 0x20 */ f32 unk20[10];    // ???
    // I think these are the "nautical angles" between pos and lookAt
    // rot[0] = pitch, rot[1] = yaw, rot[2] = roll?
    /* 0x24 */ Vec3s rot;
    /* 0x2A */ s16 rotZ;
    /* 0x2C */ s16 unk_2C;
    /* 0x2E */ s16 unk_2E;
    /* 0x30 */ Vec3f unk_30;
    /* 0x3C */ Vec3f unk_3C;
    /* 0x48 */ s32 unk_48;
    /* 0x4C */ s32 unk_4C;
    /* 0x50 */ s32 unk_50;
    /* 0x54 */ UnkActorInner unk_54;
    // When you hit a wall (or another driver) the camera's pos and lookAt bounce up and down. This is the velocity(?) of that bouncing
    /* 0x94 */ f32 unk_94;
    /* 0x98 */ s16 unk_98;
    /* 0x9A */ s16 unk_9A;
    // Timer for wall-hit bounce. Counts up instead of down
    /* 0x9C */ s16 unk_9C;
    /* 0x9E */ s16 pad_9E;
    /* 0xA0 */ f32 unk_A0;
    /* 0xA4 */ s32 unk_A4;
    /* 0xA8 */ s32 unk_A8;
    /* 0xAC */ s16 unk_AC;
    // Id of the player the camera is following.
    /* 0xAE */ s16 playerId;
    // Seems related to camera movement during drifting
    /* 0xB0 */ s16 unk_B0;
    /* 0xB2 */ s16 unk_B2;
    /* 0xB4 */ f32 unk_B4;
} CinematicCamera; /* size = 0xB8 */

void func_8001CA10(Camera*);
void func_8001CA24(Player*, f32);
void func_8001CA78(Player*, Camera*, Vec3f, f32*, f32*, f32*, s16, s8);
void func_8001D53C(Player*, Camera*, Vec3f, f32*, f32*, f32*, s16, s16);
void func_8001D794(Player*, Camera*, Vec3f, f32*, f32*, f32*, s16);
void func_8001E0C4(Camera*, Player*, s8);
void func_8001E8E8(Camera*, Player*, s8);
void func_8001F87C(s32);

extern s32 D_80164A2C;
extern f32 D_80164A30;
extern f32 D_80164A90[];
extern f32 D_80164AA0[];

extern Camera cameras[];
extern Camera *camera1;
extern Camera *camera2;
extern Camera *camera3;
extern Camera *camera4;

extern Player *gPlayerTwo;
extern Player *gPlayerThree;
extern Player *gPlayerFour;

// Actually define in main.c, probably need to add to main.h
extern u16 D_80152300[];

#endif