g_camera.cpp

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/*
Copyright (C) 2002-2020 UFO: Alien Invasion.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#include "g_local.h"
#include "g_spawn.h"
#include "g_utils.h"
#include "g_vis.h"

static bool G_CameraUse (Edict* self, Edict* activator)
{
    if (!activator || !G_IsActor(activator)) {
        return false;
    }

    self->toggleActive();

    return false;
}

static bool Destroy_Camera (Edict* self)
{
    G_SpawnParticle(self->origin, self->spawnflags, self->particle);
    G_FreeEdict(self);
    return true;
}

#define CAMERAMODEL(X, IDX) case X: ent->model = "models/objects/cameras/camera" STRINGIFY(IDX); break

void G_InitCamera (Edict* ent, camera_type_t cameraType, float angle, bool rotate)
{
    switch (cameraType) {
    CAMERAMODEL(CAMERA_MOBILE, 0);
    CAMERAMODEL(CAMERA_STATIONARY, 1);
    default:
        gi.DPrintf("unknown camera type given: %i\n", cameraType);
        G_FreeEdict(ent);
        return;
    }

    AABB modelAabb;
    if (gi.LoadModelAABB(ent->model, 0, modelAabb)) {
        ent->entBox.set(modelAabb);

        ent->camera.cameraType = cameraType;
        ent->camera.rotate = rotate;
        ent->classname = "misc_camera";
        ent->type = ET_CAMERA;
        ent->solid = SOLID_BBOX;
        ent->flags |= FL_DESTROYABLE;
        ent->material = MAT_ELECTRICAL;
        ent->fieldSize = ACTOR_SIZE_NORMAL;
        ent->destroy = Destroy_Camera;
        ent->use = G_CameraUse;
        ent->dir = AngleToDir(angle);

        /* Set the position of the entity */
        VecToPos(ent->origin, ent->pos);

        gi.LinkEdict(ent);
    } else {
        gi.DPrintf("Could not get bounding box for model '%s'\n", ent->model);
        G_FreeEdict(ent);
    }
}