cam_mode_unused_leading.c File Reference

Go to the source code of this file.

Functions
void	update_unused_lead_amt (Camera *camera)
void	interp_lookat_pos (Camera *camera, f32 interpAmtXZ, f32 maxDeltaXZ, s16 lockPosY)
void	update_camera_unused_leading (Camera *camera)

Function Documentation

update_unused_lead_amt()

void update_unused_lead_amt

(

Camera *

camera

)

Definition at line 3 of file cam_mode_unused_leading.c.

                                            {
    // moving left? (along +x axis)
    if (fabsf(get_clamped_angle_diff(gPlayerStatus.curYaw, 90.0f)) < 45.0f) {
        if (camera->unusedLeadDir == 0) {
            if (camera->unusedLeadCounter <= 0) {
                camera->unusedLeadAmt = 35.0f;
            } else {
                camera->unusedLeadCounter--;
            }
        } else {
            camera->unusedLeadCounter = 15;
            camera->unusedLeadDir = 0;
        }
    // moving right? (along -x axis)
    } else if (fabsf(get_clamped_angle_diff(gPlayerStatus.curYaw, 270.0f)) < 45.0f) {
        if (camera->unusedLeadDir == 1) {
            if (camera->unusedLeadCounter <= 0) {
                camera->unusedLeadAmt = -35.0f;
            } else {
                camera->unusedLeadCounter--;
            }
        } else {
            camera->unusedLeadCounter = 15;
            camera->unusedLeadDir = 1;
        }
    }
}

Referenced by update_camera_unused_leading().

interp_lookat_pos()

void interp_lookat_pos	(	Camera *	camera,
		f32	interpAmtXZ,
		f32	maxDeltaXZ,
		s16	lockPosY )

Definition at line 31 of file cam_mode_unused_leading.c.

                                                                                      {
    f32 pitchAngle, sinPitch, cosPitch;
    f32 deltaX, deltaZ;
 
    deltaX = (camera->lookAt_obj_target.x - camera->lookAt_obj.x) * interpAmtXZ;
    deltaZ = (camera->lookAt_obj_target.z - camera->lookAt_obj.z) * interpAmtXZ;
 
    if (deltaX < -maxDeltaXZ) {
        deltaX = -maxDeltaXZ;
    }
    if (deltaX > maxDeltaXZ) {
        deltaX = maxDeltaXZ;
    }
 
    camera->lookAt_obj.x += deltaX;
    camera->lookAt_obj.z += deltaZ;
 
    pitchAngle = DEG_TO_RAD(camera->curBoomPitch);
    sinPitch = sin_rad(pitchAngle);
    cosPitch = cos_rad(pitchAngle);
 
    camera->lookAt_eye.x = camera->lookAt_obj.x;
    camera->lookAt_eye.z = camera->lookAt_obj.z + (camera->curBoomLength * cosPitch);
 
    if (!lockPosY) {
        camera->lookAt_obj.y += (camera->lookAt_obj_target.y - camera->lookAt_obj.y) * 0.125f;
        camera->lookAt_eye.y = camera->lookAt_obj.y + (camera->curBoomLength * sinPitch);
    }
}

Referenced by update_camera_unused_leading().

update_camera_unused_leading()

void update_camera_unused_leading

(

Camera *

camera

)

Definition at line 67 of file cam_mode_unused_leading.c.

                                                  {
    f32 dx, dy, dz, dr;
 
    camera->curBoomPitch = 18.0f;
    camera->curBoomLength = 690.0f;
    camera->targetOffsetY = 47.0f;
 
    if (camera->needsInit) {
        camera->needsInit = FALSE;
        camera->unusedLeadAmt = 0.0f;
        camera->unusedLeadCounter = 0;
        camera->interpYaw = 0.0f;
        camera->curBoomYaw = 0.0f;
        camera->lookAt_obj.x = camera->targetPos.x;
        camera->lookAt_obj.y = camera->targetPos.y + camera->targetOffsetY;
        camera->lookAt_obj.z = camera->targetPos.z;
        interp_lookat_pos(camera, 0.0f, 0.0f, FALSE);
    } else {
        f32 maxInterpSpeed = (gPlayerStatus.curSpeed * 1.5f) + 1.0f;
        f32 interpRate = (gPlayerStatus.curSpeed * 0.05f) + 0.05f;
 
        camera->lookAt_obj_target.x = camera->targetPos.x + camera->unusedLeadAmt;
        camera->lookAt_obj_target.y = camera->targetPos.y + camera->targetOffsetY;
        camera->lookAt_obj_target.z = camera->targetPos.z;
        update_unused_lead_amt(camera);
        if (camera->moveFlags & CAMERA_MOVE_IGNORE_PLAYER_Y) {
            interp_lookat_pos(camera, interpRate, maxInterpSpeed, TRUE);
        } else {
            interp_lookat_pos(camera, interpRate, maxInterpSpeed, FALSE);
        }
    }
 
    dx = camera->lookAt_obj.x - camera->lookAt_eye.x;
    dy = camera->lookAt_obj.y - camera->lookAt_eye.y;
    dz = camera->lookAt_obj.z - camera->lookAt_eye.z;
    dr = sqrtf(SQ(dx) + SQ(dz));
 
    camera->lookAt_yaw = -atan2(0.0f, 0.0f, dx, dz);
    camera->lookAt_pitch = atan2(0.0f, 0.0f, dy, -dr);
    camera->curYaw = atan2(camera->lookAt_eye.x, camera->lookAt_eye.z, camera->lookAt_obj.x, camera->lookAt_obj.z);
}

Referenced by update_cameras().