3dtoys/camera.h

#ifndef __3DTOYS_CAMERA
#define __3DTOYS_CAMERA
#include "haloo3d/haloo3d.h"
// #include "unigi/unigi.headers/src/main.h"

#define LOOKLOCK MPI / 32

typedef struct {
  mfloat_t xofs;
  mfloat_t yofs;
  mfloat_t zofs;
  mfloat_t yaw;
  mfloat_t pitch;
} camset;

static inline int readcam(camset *set, int max, char *filename) {
  FILE *f = fopen(filename, "r");
  if (f == NULL) {
    dieerr("Can't open %s for reading cam\n", filename);
  }
  int num = 0;
  while (5 == fscanf(f, "%f %f %f %f %f", &set[num].xofs, &set[num].yofs,
                     &set[num].zofs, &set[num].yaw, &set[num].pitch)) {
    num++;
    if (num >= max) {
      eprintf("Camera file too big! Ignoring rest\n");
      break;
    }
  }
  fclose(f);
  printf("Read %d camlines from %s\n", num, filename);
  return num;
}

/*
void camera_from_unigi(unigi_type_event * ev, haloo3d_camera * cam, float speed)
{

        Fps := float32(*fps)
        mouse := rl.GetMouseDelta()
        pitch += Rotation * mouse.Y / Fps
        yaw += Rotation * mouse.X / Fps
        pitch = hrend.Clamp(pitch, LookLock, math.Pi-LookLock)

        newcamtrans := hrend.Vec3f{X: 0, Y: 0, Z: 0}
        move := float32(Movement)
        if rl.IsMouseButtonDown(rl.MouseButtonLeft) {
                move *= 6
        }
        if rl.IsKeyDown(rl.KeyD) {
                newcamtrans.X += move / Fps
        }
        if rl.IsKeyDown(rl.KeyA) {
                newcamtrans.X -= move / Fps
        }
        // Moving forward moves in the negative z direction, since we FACE
        // the -z axis (the camera does anyway)
        if rl.IsKeyDown(rl.KeyW) {
                newcamtrans.Z -= move / Fps
        }
        if rl.IsKeyDown(rl.KeyS) {
                newcamtrans.Z += move / Fps
        }
        if rl.IsKeyDown(rl.KeySpace) {
                newcamtrans.Y += move / Fps
        }
        if rl.IsKeyDown(rl.KeyLeftShift) {
                newcamtrans.Y -= move / Fps
        }

        // translate the new camera movement based on the yaw
        var moverot hrend.Mat44f
        moverot.SetRotationY(-yaw)
        hnewcamtrans := moverot.MultiplyPoint3(newcamtrans)

        return yaw, pitch, hnewcamtrans.MakeConventional()
}*/

#endif